Datasheet> 器件分类 > 其他集成电路（IC）> 消费电路> 92HD89C3X5PRGXYYX

文档预览

92HD89C3X5PRGXYYX: 产品描述Consumer Circuit, PQFP48, ROHS COMPLIANT, QFP-48; 产品类别其他集成电路（IC）消费电路; 文件大小3MB，共314页; 制造商IDT (Integrated Device Technology); 标准

下载文档详细参数选型对比全文预览

92HD89C3X5PRGXYYX概述

Consumer Circuit, PQFP48, ROHS COMPLIANT, QFP-48

92HD89C3X5PRGXYYX规格参数

参数名称	属性值
是否无铅	不含铅
是否Rohs认证	符合
厂商名称	IDT (Integrated Device Technology)
零件包装代码	QFP
包装说明	ROHS COMPLIANT, QFP-48
针数	48
Reach Compliance Code	compliant
其他特性	IT ALSO REQUIRES 3.3V DIGITAL 5V ANALOG SUPPLY
商用集成电路类型	CONSUMER CIRCUIT
JESD-30 代码	S-PQFP-G48
JESD-609代码	e3
长度	7 mm
功能数量	1
端子数量	48
最高工作温度	70 °C
最低工作温度
封装主体材料	PLASTIC/EPOXY
封装代码	LFQFP
封装形状	SQUARE
封装形式	FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）	260
认证状态	Not Qualified
座面最大高度	1.6 mm
最大供电电压 (Vsup)	1.98 V
最小供电电压 (Vsup)	1.4 V
表面贴装	YES
温度等级	COMMERCIAL
端子面层	MATTE TIN
端子形式	GULL WING
端子节距	0.5 mm
端子位置	QUAD
处于峰值回流温度下的最长时间	30
宽度	7 mm

92HD89C3X5PRGXYYX文档预览

DATASHEET

SIX CHANNEL HD AUDIO CODEC

Low Power Optimized for ECR15b and EuP

92HD89C

Features

•

6 Channels (3 stereo DACs and 2 stereo ADCs)

with 24-bit resolution

•

Supports full-duplex stereo audio and simultaneous

VoIP

Supports 5.1 surround audio

Description

The 92HD89C is a low power optimized, high fidelity,

6-channel audio codec compatible with Intel’s High

Definition (HD) Audio Interface.

The 92HD89C provides stereo 24-bit resolution with

sample rates up to 192kHz.

The 92HD89C provides high quality, HD Audio capability to

notebook and desktop PC applications.

•

ECR 15b and EuP low power support

Microsoft WLP premium logo compliant, per Logo

Point

7 analog ports with port presence detect + CD In

2 integrated headphone amps

3 adjustable VREF Out pins for microphone bias

Dual SPDIF for WLP compliant support of

simultaneous HDMI and SPDIF output

Digital microphone input (mono or stereo)

High performance analog mixer

Support for 1.5V and 3.3V HDA signaling

+5 V analog power supply

Digital and Analog PC Beep to all outputs

48-pin QFP and 40-pad QFN RoHS packages

Block Diagram

Port A

Port B

Port C

Port D

Port E

Port F

Port G

High Definition Interface

DSP

Ports

SPDIF

SPDIF Out 1

SPDIF Out 2

V1.0 11/10

92HD89C

92HD89C

Six channel HD Audio codec optimized for low power

Software Support

•

Intuitive IDT HD Sound graphical user interface that allows configurability and preference set-

tings

12 band fully parametric equalizer

• Constant, system-level effects tuned to optimize a particular platform can be combined with

user-mode “presets” tailored for specific acoustical environments and applications

• System-level effects automatically disabled when external audio connections made

Dynamics Processing

• Enables improved voice articulation

• Compressor/limiter allows higher average volume level without resonances or damage to

speakers.

IDT Vista APO wrapper

• Enables multiple APOs to be used with the IDT Driver

Microphone Beam Forming, Acoustic Echo Cancellation, and Noise Suppression

Dynamic Stream Switching

• Improved multi-streaming user experience with less support calls

Broad 3

party branded software including Creative, Dolby, DTS, and SRS

Smart Configuration Suite (SCS) improves time to market and software quality

• Online pin and feature configuration tool generates BIOS verb table for Windows and Linux.

• Downloadable WHQL compliant, self configurable driver for XP, Vista and Win7 based on

verb table and test files generated.

• BIOS verb tables can be tested with the self configurable driver prior to flashing into BIOS.

•

V1.0 11/10

92HD89C

92HD89C

Six channel HD Audio codec optimized for low power

TABLE OF CONTENTS

1. DESCRIPTION ........................................................................................................................ 11

1.1. Overview ..........................................................................................................................................11

1.2. Orderable Part Numbers ..................................................................................................................11

1.3. Block Diagram .................................................................................................................................12

2. DETAILED DESCRIPTION ..................................................................................................... 13

2.1. Port Functionality .............................................................................................................................13

2.1.1. Port Characteristics ............................................................................................................14

2.1.2. Vref_Out .............................................................................................................................15

2.1.3. Jack Detect ........................................................................................................................15

2.1.4. SPDIF Output .....................................................................................................................15

2.2. Analog Mixer ....................................................................................................................................18

2.3. Input Multiplexers .............................................................................................................................18

2.4. ADC Multiplexers .............................................................................................................................18

2.5. Power Management .........................................................................................................................18

2.6. AFG D0 ............................................................................................................................................20

2.7. AFG D1 ............................................................................................................................................20

2.8. AFG D2 ............................................................................................................................................20

2.9. AFG D3 ............................................................................................................................................20

2.9.1. AFG D3cold .......................................................................................................................20

2.10. Vendor Specific Function Group Power States D4/D5 ..................................................................21

2.11. Low-voltage HDA Signaling ...........................................................................................................21

2.12. Multi-channel capture ....................................................................................................................21

2.13. Digital Microphone Support ...........................................................................................................23

2.14. Analog PC-Beep ............................................................................................................................27

2.15. Digital PC-Beep .............................................................................................................................29

2.16. Headphone Drivers ........................................................................................................................29

2.17. EAPD .............................................................................................................................................29

2.18. GPIO ..............................................................................................................................................32

2.18.1. GPIO Pin mapping and shared functions .........................................................................32

2.18.2. EAPD/SPDIF_OUT/GPIO0 Selection ..............................................................................32

2.18.3. Digital Microphone/GPIO Selection .................................................................................32

2.18.4. Vref_Out/GPIO Selection .................................................................................................33

2.18.5. EAPD/SPDIF_OUT/GPIO0 Selection ..............................................................................33

2.19. HD Audio ECR 15b support ...........................................................................................................33

2.20. Digital Core Voltage Regulator ......................................................................................................33

3. CHARACTERISTICS ............................................................................................................... 34

3.1. Electrical Specifications ...................................................................................................................34

3.1.1. Absolute Maximum Ratings ...............................................................................................34

3.1.2. Recommended Operating Conditions ................................................................................34

3.2. 92HD89C Analog Performance Characteristics ...............................................................................35

3.3. AC Timing Specs .............................................................................................................................39

3.3.1. HD Audio Bus Timing .........................................................................................................39

3.3.2. SPDIF Timing .....................................................................................................................39

3.3.3. Digital Microphone Timing .................................................................................................40

3.3.4. GPIO Characteristics .........................................................................................................40

4. FUNCTIONAL BLOCK DIAGRAMS ....................................................................................... 41

4.1. 48QFP .............................................................................................................................................41

4.2. 40QFN .............................................................................................................................................42

5. WIDGET INFORMATION AND SUPPORTED COMMAND VERBS ....................................... 43

6. PORT CONFIGURATIONS ..................................................................................................... 44

6.1. Pin Configuration Default Register Settings .....................................................................................45

7. WIDGET INFORMATION ........................................................................................................ 46

7.1. Widget List .......................................................................................................................................47

7.2. Root (NID = 00h): VendorID ............................................................................................................48

7.3. Root (NID = 00h): RevID ..................................................................................................................49

7.3.1. Root (NID = 00h): NodeInfo ...............................................................................................49

7.4. AFG (NID = 01h): NodeInfo .............................................................................................................50

V1.0 11/10

92HD89C

92HD89C

Six channel HD Audio codec optimized for low power

7.4.1. AFG (NID = 01h): FGType .................................................................................................51

7.4.2. AFG (NID = 01h): AFGCap ................................................................................................51

7.4.3. AFG (NID = 01h): PCMCap ...............................................................................................52

7.4.4. AFG (NID = 01h): StreamCap ............................................................................................54

7.4.5. AFG (NID = 01h): InAmpCap .............................................................................................54

7.4.6. AFG (NID = 01h): PwrStateCap .........................................................................................55

7.4.7. AFG (NID = 01h): GPIOCnt ...............................................................................................56

7.4.8. AFG (NID = 01h): OutAmpCap ..........................................................................................57

7.4.9. AFG (NID = 01h): PwrState ...............................................................................................58

7.4.10. AFG (NID = 01h): UnsolResp ..........................................................................................59

7.4.11. AFG (NID = 01h): GPIO ...................................................................................................59

7.4.12. AFG (NID = 01h): GPIOEn ...............................................................................................60

7.4.13. AFG (NID = 01h): GPIODir ..............................................................................................61

7.4.14. AFG (NID = 01h): GPIOWakeEn .....................................................................................62

7.4.15. AFG (NID = 01h): GPIOUnsol ..........................................................................................63

7.4.16. AFG (NID = 01h): GPIOSticky .........................................................................................64

7.4.17. AFG (NID = 01h): SubID ..................................................................................................65

7.4.18. AFG (NID = 01h): GPIOPlrty ............................................................................................65

7.4.19. AFG (NID = 01h): GPIODrive ...........................................................................................67

7.4.20. AFG (NID = 01h): DMic ....................................................................................................68

7.4.21. AFG (NID = 01h): DACMode ...........................................................................................68

7.4.22. AFG (NID = 01h): ADCMode ...........................................................................................70

7.4.23. AFG (NID = 01h): EAPD ..................................................................................................70

7.4.24. AFG (NID = 01h): PortUse ...............................................................................................72

7.4.25. AFG (NID = 01h): VSPwrState .........................................................................................73

7.4.26. AFG (NID = 01h): AnaPort ...............................................................................................73

7.4.27. AFG (NID = 01h): AnaBeep .............................................................................................74

7.4.28. AFG (NID = 01h): Reset ...................................................................................................75

7.5. PortA (NID = 0Ah): WCap ................................................................................................................76

7.5.1. PortA (NID = 0Ah): PinCap ................................................................................................77

7.5.2. PortA (NID = 0Ah): ConLst .................................................................................................79

7.5.3. PortA (NID = 0Ah): ConLstEntry0 ......................................................................................79

7.5.4. PortA (NID = 0Ah): InAmpLeft ............................................................................................80

7.5.5. PortA (NID = 0Ah): InAmpRight .........................................................................................80

7.5.6. PortA (NID = 0Ah): ConSelectCtrl ......................................................................................81

7.5.7. PortA (NID = 0Ah): PwrState .............................................................................................81

7.5.8. PortA (NID = 0Ah): PinWCntrl ............................................................................................82

7.5.9. PortA (NID = 0Ah): UnsolResp ..........................................................................................83

7.5.10. PortA (NID = 0Ah): ChSense ...........................................................................................84

7.5.11. PortA (NID = 0Ah): EAPDBTLLR .....................................................................................84

7.5.12. PortA (NID = 0Ah): ConfigDefault ....................................................................................85

7.6. PortB (NID = 0Bh): WCap ................................................................................................................88

7.6.1. PortB (NID = 0Bh): PinCap ................................................................................................89

7.6.2. PortB (NID = 0Bh): ConLst .................................................................................................91

7.6.3. PortB (NID = 0Bh): ConLstEntry0 ......................................................................................91

7.6.4. PortB (NID = 0Bh): ConSelectCtrl ......................................................................................92

7.6.5. PortB (NID = 0Bh): InAmpLeft ............................................................................................92

7.6.6. PortB (NID = 0Bh): InAmpRight .........................................................................................93

7.6.7. PortB (NID = 0Bh): PwrState .............................................................................................93

7.6.8. PortB (NID = 0Bh): PinWCntrl ............................................................................................94

7.6.9. PortB (NID = 0Bh): UnsolResp ..........................................................................................95

7.6.10. PortB (NID = 0Bh): ChSense ...........................................................................................95

7.6.11. PortB (NID = 0Bh): EAPDBTLLR .....................................................................................96

7.6.12. PortB (NID = 0Bh): ConfigDefault ....................................................................................96

7.7. PortC (NID = 0Ch): WCap .............................................................................................................100

7.7.1. PortC (NID = 0Ch): PinCap ..............................................................................................101

7.7.2. PortC (NID = 0Ch): ConLst ..............................................................................................102

7.7.3. PortC (NID = 0Ch): ConLstEntry0 ....................................................................................103

7.7.4. PortC (NID = 0Ch): InAmpLeft .........................................................................................104

V1.0 11/10

92HD89C

92HD89C

Six channel HD Audio codec optimized for low power

7.7.5. PortC (NID = 0Ch): InAmpRight .......................................................................................104

7.7.6. PortC (NID = 0Ch): ConSelectCtrl ...................................................................................104

7.7.7. PortC (NID = 0Ch): PwrState ...........................................................................................105

7.7.8. PortC (NID = 0Ch): PinWCntrl .........................................................................................106

7.7.9. PortC (NID = 0Ch): UnsolResp ........................................................................................106

7.7.10. PortC (NID = 0Ch): ChSense .........................................................................................107

7.7.11. PortC (NID = 0Ch): EAPDBTLLR ...................................................................................107

7.7.12. PortC (NID = 0Ch): ConfigDefault ..................................................................................108

7.8. PortD (NID = 0Dh): WCap .............................................................................................................111

7.8.1. PortD (NID = 0Dh): PinCap ..............................................................................................112

7.8.2. PortD (NID = 0Dh): ConLst ..............................................................................................114

7.8.3. PortD (NID = 0Dh): ConLstEntry0 ....................................................................................114

7.8.4. PortD (NID = 0Dh): InAmpLeft .........................................................................................115

7.8.5. PortD (NID = 0Dh): InAmpRight .......................................................................................115

7.8.6. PortD (NID = 0Dh): ConSelectCtrl ...................................................................................116

7.8.7. PortD (NID = 0Dh): PwrState ...........................................................................................116

7.8.8. PortD (NID = 0Dh): PinWCntrl .........................................................................................117

7.8.9. PortD (NID = 0Dh): UnsolResp ........................................................................................118

7.8.10. PortD (NID = 0Dh): ChSense .........................................................................................118

7.8.11. PortD (NID = 0Dh): EAPDBTLLR ...................................................................................119

7.8.12. PortD (NID = 0Dh): ConfigDefault ..................................................................................119

7.9. PortE (NID = 0Eh): WCap ..............................................................................................................122

7.9.1. PortE (NID = 0Eh): PinCap ..............................................................................................123

7.9.2. PortE (NID = 0Eh): ConLst ...............................................................................................125

7.9.3. PortE (NID = 0Eh): ConLstEntry0 ....................................................................................125

7.9.4. PortE (NID = 0Eh): InAmpLeft ..........................................................................................126

7.9.5. PortE (NID = 0Eh): InAmpRight .......................................................................................126

7.9.6. PortE (NID = 0Eh): ConSelectCtrl ....................................................................................127

7.9.7. PortE (NID = 0Eh): PwrState ...........................................................................................127

7.9.8. PortE (NID = 0Eh): PinWCntrl ..........................................................................................128

7.9.9. PortE (NID = 0Eh): UnsolResp ........................................................................................129

7.9.10. PortE (NID = 0Eh): ChSense .........................................................................................129

7.9.11. PortE (NID = 0Eh): EAPDBTLLR ...................................................................................130

7.9.12. PortE (NID = 0Eh): ConfigDefault ..................................................................................130

7.10. PortF (NID = 0Fh): WCap ............................................................................................................134

7.10.1. PortF (NID = 0Fh): PinCap .............................................................................................135

7.10.2. PortF (NID = 0Fh): ConLst .............................................................................................137

7.10.3. PortF (NID = 0Fh): ConLstEntry0 ...................................................................................137

7.10.4. PortF (NID = 0Fh): InAmpLeft ........................................................................................138

7.10.5. PortF (NID = 0Fh): InAmpRight ......................................................................................138

7.10.6. PortF (NID = 0Fh): ConSelectCtrl ..................................................................................139

7.10.7. PortF (NID = 0Fh): PwrState ..........................................................................................139

7.10.8. PortF (NID = 0Fh): PinWCntrl ........................................................................................140

7.10.9. PortF (NID = 0Fh): UnsolResp .......................................................................................141

7.10.10. PortF (NID = 0Fh): ChSense ........................................................................................141

7.10.11. PortF (NID = 0Fh): EAPDBTLLR .................................................................................142

7.10.12. PortF (NID = 0Fh): ConfigDefault .................................................................................142

7.11. PortG (NID = 0Gh): WCap ...........................................................................................................145

7.11.1. PortG (NID = 0Gh): PinCap ...........................................................................................146

7.11.2. PortG (NID = 0Gh): ConLst ............................................................................................148

7.11.3. PortG (NID = 0Gh): ConLstEntry0 .................................................................................148

7.11.4. PortG (NID = 0Gh): InAmpLeft .......................................................................................149

7.11.5. PortG (NID = 0Gh): InAmpRight ....................................................................................149

7.11.6. PortG (NID = 0Gh): ConSelectCtrl .................................................................................150

7.11.7. PortG (NID = 0Gh): PwrState .........................................................................................150

7.11.8. PortG (NID = 0Gh): PinWCntrl .......................................................................................151

7.11.9. PortG (NID = 0Gh): UnsolResp ......................................................................................152

7.11.10. PortG (NID = 0Gh): ChSense ......................................................................................152

7.11.11. PortG (NID = 0Gh): EAPDBTLLR ................................................................................153

V1.0 11/10

92HD89C

查看更多（仅显示前5页内容，查看全部内容请下载文档。）>

92HD89C3X5PRGXYYX相似产品对比

	92HD89C3X5PRGXYYX	92HD89C1X5NDGXYYX	92HD89C1X5NDGXYYX8	92HD89C2X5NDGXYYX	92HD89C2X5NDGXYYX8	92HD89C3X5PRGXYYX8
描述	Consumer Circuit, PQFP48, ROHS COMPLIANT, QFP-48	Consumer Circuit, ROHS COMPLIANT, QFN-40	Consumer Circuit, ROHS COMPLIANT, QFN-40	Consumer Circuit, ROHS COMPLIANT, QFN-40	Consumer Circuit, ROHS COMPLIANT, QFN-40	Consumer Circuit, PQFP48, ROHS COMPLIANT, QFP-48
是否无铅	不含铅	不含铅	不含铅	不含铅	不含铅	不含铅
是否Rohs认证	符合	符合	符合	符合	符合	符合
厂商名称	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)
零件包装代码	QFP	QFN	QFN	QFN	QFN	QFP
包装说明	ROHS COMPLIANT, QFP-48	ROHS COMPLIANT, QFN-40	ROHS COMPLIANT, QFN-40	ROHS COMPLIANT, QFN-40	ROHS COMPLIANT, QFN-40	ROHS COMPLIANT, QFP-48
针数	48	40	40	40	40	48
Reach Compliance Code	compliant	compliant	compliant	compliant	compliant	compliant
其他特性	IT ALSO REQUIRES 3.3V DIGITAL 5V ANALOG SUPPLY	IT ALSO REQUIRES 3.3V DIGITAL 5V ANALOG SUPPLY	IT ALSO REQUIRES 3.3V DIGITAL 5V ANALOG SUPPLY	IT ALSO REQUIRES 3.3V DIGITAL 5V ANALOG SUPPLY	IT ALSO REQUIRES 3.3V DIGITAL 5V ANALOG SUPPLY	IT ALSO REQUIRES 3.3V DIGITAL 5V ANALOG SUPPLY
商用集成电路类型	CONSUMER CIRCUIT	CONSUMER CIRCUIT	CONSUMER CIRCUIT	CONSUMER CIRCUIT	CONSUMER CIRCUIT	CONSUMER CIRCUIT
JESD-30 代码	S-PQFP-G48	S-XQCC-N40	S-XQCC-N40	S-XQCC-N40	S-XQCC-N40	S-PQFP-G48
JESD-609代码	e3	e3	e3	e3	e3	e3
长度	7 mm	5 mm	5 mm	5 mm	5 mm	7 mm
功能数量	1	1	1	1	1	1
端子数量	48	40	40	40	40	48
最高工作温度	70 °C	70 °C	70 °C	70 °C	70 °C	70 °C
封装主体材料	PLASTIC/EPOXY	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	UNSPECIFIED	PLASTIC/EPOXY
封装代码	LFQFP	HVQCCN	HVQCCN	HVQCCN	HVQCCN	LFQFP
封装形状	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
封装形式	FLATPACK, LOW PROFILE, FINE PITCH	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	FLATPACK, LOW PROFILE, FINE PITCH
峰值回流温度（摄氏度）	260	260	260	260	260	260
认证状态	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified	Not Qualified
座面最大高度	1.6 mm	0.9 mm	0.9 mm	0.9 mm	0.9 mm	1.6 mm
最大供电电压 (Vsup)	1.98 V	1.98 V	1.98 V	1.98 V	1.98 V	1.98 V
最小供电电压 (Vsup)	1.4 V	1.4 V	1.4 V	1.4 V	1.4 V	1.4 V
表面贴装	YES	YES	YES	YES	YES	YES
温度等级	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL	COMMERCIAL
端子面层	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN	MATTE TIN
端子形式	GULL WING	NO LEAD	NO LEAD	NO LEAD	NO LEAD	GULL WING
端子节距	0.5 mm	0.4 mm	0.4 mm	0.4 mm	0.4 mm	0.5 mm
端子位置	QUAD	QUAD	QUAD	QUAD	QUAD	QUAD
处于峰值回流温度下的最长时间	30	30	30	30	30	30
宽度	7 mm	5 mm	5 mm	5 mm	5 mm	7 mm
湿度敏感等级	-	3	3	3	3	-

推荐资源

带有点动功能的自动往返控制电路

三色变色灯电路

空压机控制电路的改进电路

高灵敏度、常开、双端、零电压开关半波导通电路

采用晶闸管的充电器电路图

电子管单级多路通过电阻耦合—直接耦合混合的输入电路

师傅们，来看看更改后的整流电路: 本帖最后由 181813753 于 2016-9-14 14:25 编辑如图，将昨天的电路取舍如下，舍弃小电压组，取C12分压AC30V为AC6V，电流约100ma,师傅们看看还有不妥的吗？图中C3接反，师傅们直接忽略哈 ...; 181813753 51单片机

感谢论坛的奖品: 论坛活动的U盘 32g的，很不错 ...; 青城山下聊聊、笑笑、闹闹

单位增益频率是个什么东西: 有谁能告诉单位增益频率是个什么东西，它是怎么算出来的？（下图画红线部分） 507311 ...; sunboy25 模拟电子

用笔记本的modem+电话线拨打电话的问题: 我的笔记本是HP V3911TU，内置调制解调器（MODEM）。我想用它拨打电话，我的操作步骤如下： 1、把电话线插上MODEM，麦克风插上笔记本（声卡）； 2、开始--运行--dialer，打开xp自带拨号程序 ......; copytang 嵌入式系统

SOSO回归倒计时: 明天一早SOSO就要上班了，现在是3日晚八点，按照9点到的话，那就是还有13小时。看看SOSO何时发出2013年第一贴。...; 向农聊聊、笑笑、闹闹

DSP28335运行时间长后，无法再进入CAN中断: 大家好，我用8148外接SATA时，100M差分时钟通过外部时钟芯片提供给SERDES接口，这样SATA是能正常使用的，但是我看8148 DATASHEET，好像也能使用内部时钟，而不需要这个外接的100M差分时钟，我想 ......; ychun DSP 与 ARM 处理器

基于中颖电子的SH6613的空调遥控器设计

中颖电子的SH66xx系列4位单片机具有速度快, 功耗低, 结构简单易用,性价比高等特点, 广泛应用于遥控器,各种电器控制, 多功能计算器,万年历,掌上游戏机等产品。SH6613是其中的一款具有双晶振及液晶驱动功能的单片机, 它的基本功能如下: 　　程序存储器(ROM): 4096×16 　　数据存储器(RAM): 512×4 　　输入输出口：8个　　液晶驱动：34×4 　　其中Se...[详细]
手机无线芯片出货量放缓但前景可期

　　市场研究集团Forward Concepts通过对WSTS的最新半导体出货量统计数据进行分析，认为尽管出现了手机芯片的出货量放缓现象，但对统计的数据表示质疑。　　手机专用DSP和RISC芯片的五月份出货量比四月份增加了8%，从去年五月份累计增长率为47%。　　Forward Concepts的总裁Will Strauss同时也指出，WSTS的报告称用于无线设备的DSP五月份出货量比四...[详细]
家用医疗电子设备设计指南

　　美国食品与药物管理局(FDA)指出：在医疗设备产业中，家庭卫生保健是发展最快的领域。受到人类平均寿命延长，慢性病患者越来越多以及保健成本越来越高等原因的推动，越来越多更“智能”、“友好”的医疗设备正在进入家庭消费市场。　　这些医疗保健产品包括：血糖仪、数字血压计、血气分析仪、数字脉搏和心率监视器、数字温度计、怀孕测试仪、透皮给药系统、透析系统和氧浓缩器等。其中许多仪器可以用无线方式通过互...[详细]
NEC设长春分公司主营车用功率半导体

　　为进一步强化车载半导体的销售业务，NEC电子全资子公司日电电子(中国)有限公司日前在吉林省长春市成立分公司，并以技术支持为中心展开营销活动。此次新设立的长春分公司是继NEC电子中国2005年在上海、深圳和成都设立分公司后的第四个分公司。长春分公司成立后，包括NEC电子(中国)北京总部及香港日电电子有限公司在内，NEC电子在中国的营销网点共将达到6个。　　长春分公司成立初期主要以车载用微控...[详细]
传感与RFID在血液管理分析中运用

　　1 引言　　传感技术与RFID的融合运用还刚刚起步，中国作为世界的制造业大国与消费大国之一，应牢牢抓住这一机遇，自主探索，推动本土RFID产业的发展，提升社会信息化的水平。　　RFID，即无线射频识别技术，利用射频信号通过空间耦合(交变磁场或电磁场)实现无接触的信息传递，并通过所传递的信息达到识别目的，被列为21世纪最有前途的重要产业和应用技术之一。　　RFID标签具有体...[详细]
基于SiC集成技术的生物电信号采集方案

　　人体信息监控是一个新兴的领域，人们设想开发无线脑电图(EEG)监控设备来诊断癫痫病人，可穿戴的无线EEG能够极大地改善病人的活动空间，并最终通过因特网实现家庭监护。这样的无线EEG系统已经有了，但如何将他们的体积缩小到病人可接受的程度还是一个不小的挑战。本文介绍采用IMEC的SiC技术，它的开发重点是进一步缩小集成后的EEG系统体积以及将低功耗处理技术、无线通信技术和能量提取技术整合起来，在...[详细]
前端IC决定超声系统整体性能

　　超声系统是目前广泛使用的最精密复杂的信号处理仪器之一。像任何复杂的仪器一样，由于性能、物理和成本要求的原因，实现时要做出许多权衡。掌握一些系统级的知识对于充分了解所要求前端IC的功能和性能水平是很必要的，尤其是低噪声放大器(LNA)、时间增益补偿放大器(TGC，一种可变增益放大器)和模数转换器(ADC)。这些模拟信号处理IC是决定系统整体性能的关键因素。前端IC的特性规定了系统性能的限度，一...[详细]
使高分辨率A/D转换器获得更高性能

　　如何才能使A/D转换器实现最高性能呢？明显的答案就是采用良好的设计和板面布局，除此之外，我们还可采用其他技术获得性能提升。我们实际上可采用一些简单的技术来推动A/D转换器性能，使之优于规范的要求。为了实现这一点，我们应了解A/D转换器误差的来源和类型。　　本文的目的是解释A/D转换器最常见的误差源，并介绍进行上述误差补偿的方法。某些误差补偿的方法理解和实施起来都比较容易，而有些方法则不那么...[详细]
微机电系统(MEMS)的繁荣时代已经到来

　　微机电系统(MEMS)正逐渐进入消费品、工业、医药、汽车及计算机应用市场。而且，我们不能忽视它们在仪器、军事和科研行业的稳步进展。显而易见，微机电系统的繁荣时代已经到来。　　在最近的大型展会中的大量演讲都说明了这一事实。MEMS技术的成熟为何如此迅速？许多观察者认为其原因有三：MEMS集成电路测试、原型开发和封装的标准开发，MEMS生产和工艺的进步，以及软件设计工具的改进。　　MEM...[详细]
开拓医疗电子数据转换器扮重要角色

　　根据专业研究机构Databeans最新的报告内容，2007年医疗半导体市场超过26.3亿美元。由于产品设计对于更小尺寸、更低功耗与更高速度的要求提高，因此数据转换器、传感器和电源芯片成为医疗电子需求最大的半导体器件。　　作为连接模拟和数字世界的桥梁，数据转换器是电子产品数字化的关键，它定义了图像、声音、精度、速度和用户接口。在当今大多数高性能医学成像设备中，对数据转换器的性能要求越来越...[详细]
个人医疗设备系统解决方案

　　试着想象　　肾上腺素在撞击着您身体的每一个部位，心跳开始加速，感觉兴奋不已。在刚才的跑步训练中，您取得了一个最好成绩。当您结束训练并锁定练习计时器之后，可以将得到的数据上传提交给您的教练。　　但在此之前，您应该首先去看望您的父亲。他住在这个国家的另一端，而且经常不记得服用降压药。然后，您还要将葡萄糖测量结果发送给您的糖尿病主治医生。虽然夜深了，但是您还要花几分钟时间来浏览和上传这...[详细]
血压计解决方案

一、概述电子血压计综合了单片机技术、电子测量技术，采用微控制器进行控制处理，具有计量准确、方便使用等特点。该解决方案系统采用NEC四位单片机uPD753108做主控芯片，通过A/D转换采集压力信号，并将血压值通过大屏幕液晶显示出来，采用电池供电，按键控制，并可选择实现存储功能。二、系统框图三、推荐产品 MCU： 75XL系列：u...[详细]
基于MSP430设计的微型家用心电图机

　　本文介绍了一种微型家用心电图机。该仪器具有强大的功能：显示监测、存储、回放、打印、记录管理、电源报警、电话或者互联网络传输。与其他心电图机的突出不同之处在于，本系统采用新型低功耗的16位单片机--MSP430 F135作为整个系统的控制核心，并配备相应的16位低功耗存储器AT29LV1024和液晶显示模块LMS0192A，从而简化了系统硬件电路，同时也大大降低了系统成本，因而该家用心...[详细]
Tensilica通用控制CPU在创达特VDSL2中应用

　　Tensilica与创达特公司今日共同宣布双方签署了第二轮Diamond 212GP通用控制CPU内核授权协议。此前创达特公司应用Diamond 212GP内核成功地进行了一款VDSL2 SOC的设计。Diamond 212GP是支持single-MAC DSP功能、面积紧凑、低功耗、IO接口丰富、内存子系统灵活、可综合的32位高性能通用控制CPU内核。　　创达特科技公司CEO谭耀龙表示...[详细]
ST的RGB LED驱动器单片驱动8个像素

2008 年 7 月 9 日， ST 推出一款驱动电流高达 80mA 的 24 路恒流输出 RGB LED 驱动器 STP24DP05 。在一个 7 x 7mm 的 TQFP48 封装内，新产品效能相当于三个普通的 8 路输出驱动器。由众多高亮度 LED 组成的视频显示器和广告牌，采用 ...[详细]

器件捷径: E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 EA EB EC ED EE EF EG EH EI EJ EK EL EM EN EO EP EQ ER ES ET EU EV EW EX EY EZ F0 F1 F2 F3 F4 F5 F6 F7 F8 F9 FA FB FC FD FE FF FG FH FI FJ FK FL FM FN FO FP FQ FR FS FT FU FV FW FX FY FZ G0 G1 G2 G3 G4 G5 G6 G7 G8 G9 GA GB GC GD GE GF GG GH GI GJ GK GL GM GN GO GP GQ GR GS GT GU GV GW GX GZ H0 H1 H2 H3 H4 H5 H6 H7 H8 HA HB HC HD HE HF HG HH HI HJ HK HL HM HN HO HP HQ HR HS HT HU HV HW HX HY HZ I1 I2 I3 I4 I5 I6 I7 IA IB IC ID IE IF IG IH II IK IL IM IN IO IP IQ IR IS IT IU IV IW IX J0 J1 J2 J6 J7 JA JB JC JD JE JF JG JH JJ JK JL JM JN JP JQ JR JS JT JV JW JX JZ K0 K1 K2 K3 K4 K5 K6 K7 K8 K9 KA KB KC KD KE KF KG KH KI KJ KK KL KM KN KO KP KQ KR KS KT KU KV KW KX KY KZ

热门器件

开源项目推荐更多

热门活动更多

热门文章更多

技术资料推荐更多