CMT2300A
超½功耗
Sub-1GHz
射频收发器
特性
应用
频率范围:127至1020MHz
调制解调方式:OOK,
(G)FSK
和(G)MSK
数据率:
0.5
至
300 kbps
灵敏度:
-121 dBm 2.0kbps, F
RF
= 433.92 MHz
-111 dBm 50kbps, F
RF
= 433.92 MHz
电压范围:1.8 至
3.6 V
发射电流:23
mA @ 13 dBm, 433.92 MHz, FSK
72 mA @ 20 dBm, 433.92 MHz, FSK,
接收电流:8.5
mA @ 433.92 MHz, FSK
支持超½功耗接收模式
睡眠电流
300 nA, DutyCycle = OFF
800 nA, DutyCycle = ON
自动抄表
家居安防及楼宇自动化
ISM
波段数据通讯
工业监控及控制
遥控及安防系统
遥控钥匙进入
无线传感器节点
标签读写器
订购信息
型号
CMT2300A-EQR
频率
433.92 MHz
封装
QFN16
最小启订量
3,000 pcs
3-wire SPI
接口
支持直通及包模式
可配½包处理机及
64-Byte FIFO
不½零,曼切斯特,数据½化编解码
支持前向纠错
16
管脚
QFN3x3
封装
更多订购信息:见第
33
页表
29
描述
CMT2300A
是一款超½功耗,高性½,适用于各种
127
至
1020 MHz
无线应用的
OOK,(G)FSK
射频收发器。它是
CMOSTEK NextGenRF
TM
射频产品线的一部分,
这条产品线
GPIO1
GPIO2
QFN16 (3
X
3)
包含完整的发射器,接收器和收发器。CMT2300A 的高集成
度,
简化了系统设计中所需的外围物料。
高达+20
dBm
及-121
dBm
的灵敏度优化了应用的链路性½。它支持多种数据包格
式及编解码方式,½得它可以灵活的满足各种应用对不同数
据包格式及编解码的需求。
另外,
CMT2300A
还支持
64-byte
Tx/Rx FIFO,
丰富的
GPIO
及中断配½,Duty-Cycle 运行模
式,信道侦听,高精度
RSSI,½电压检测,上电复½,½频
时钟输出,手动快速跳频,静噪输出等功½,½得应用设计
更加灵活,实现产品差异化设计。CMT2300A 工½于
1.8 V
至
3.6 V。
½达到-121
dBm
灵敏度的时候仅消耗
8.5 mA
电流,
超½功耗接收模式可以进一 步 降½芯片的接收功耗;以
13dBm
输出是仅消耗
23 mA
发射电流。
RFIP
RFIN
PA
AVDD
1
2
3
4
XO
14
16
15
XI
13
12
FCSB
CSB
SDIO
SCLK
17
GND
11
10
9
5
6
7
8
DGND
AGND
CMT2300A
顶视图
Copyright © By CMOSTEK
GPIO3
DVDD
CMT2300A
目½
1.
电气特性
........................................................................................................................................................................ 4
1.1
推荐运行条件
......................................................................................................................................................... 4
1.2
绝对最大额定值
..................................................................................................................................................... 4
1.3
功耗
....................................................................................................................................................................... 5
1.4
接收机
................................................................................................................................................................... 6
1.5
发射机
................................................................................................................................................................... 7
1.6
稳定时间
................................................................................................................................................................ 8
1.7
频率综合器
............................................................................................................................................................ 8
1.8
晶½
....................................................................................................................................................................... 9
1.9
½频振荡器
............................................................................................................................................................ 9
1.10
½电压检测
............................................................................................................................................................ 9
1.11
数字接口
................................................................................................................................................................ 9
1.12
典型参数图表
....................................................................................................................................................... 11
2.
管脚描述
...................................................................................................................................................................... 16
3.
典型应用原理图
........................................................................................................................................................... 17
3.1
直接(Direct
Tie)
原理图.
...................................................................................................................................... 17
3.2
射频开关(Switch
Type)
原理图.
.......................................................................................................................... 18
4.
功½描述
...................................................................................................................................................................... 20
4.1
发射器
................................................................................................................................................................. 20
4.2
接收机
................................................................................................................................................................. 21
4.3
辅助模块
.............................................................................................................................................................. 21
4.3.1
晶½振荡器
............................................................................................................................................... 21
4.3.2
睡眠计时器
............................................................................................................................................... 21
4.3.3
½电压检测
............................................................................................................................................... 21
4.3.4
接收信号强度指示器
(RSSI) .................................................................................................................... 21
4.3.5
相½跳变检测(PJD)
............................................................................................................................. 22
4.3.6
快速手动跳频
........................................................................................................................................... 22
5.
芯片运行
...................................................................................................................................................................... 23
5.1 SPI
接口
.............................................................................................................................................................. 23
5.2 FIFO .................................................................................................................................................................... 23
5.2.1 FIFO
读操½
............................................................................................................................................ 24
5.2.2 FIFO
写操½
............................................................................................................................................ 24
5.2.3 FIFO
相关中断.........................................................................................................................................
24
5.3
工½状态,时序及功耗
........................................................................................................................................ 25
5.3.1
启动时序
.................................................................................................................................................. 25
5.3.2
工½状态
.................................................................................................................................................. 26
5.4 GPIO
和中断
....................................................................................................................................................... 27
6.
数据包及包处理机
........................................................................................................................................................ 30
6.1
数据包格式
.......................................................................................................................................................... 30
Rev 0.8 | Page2/44
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CMT2300A
6.2
数据模式
.............................................................................................................................................................. 30
6.2.1
直通模式
.................................................................................................................................................. 31
6.2.2
包模式
...................................................................................................................................................... 31
7.
½功耗运行...................................................................................................................................................................
33
7.1 Duty Cycle
运½模式
........................................................................................................................................... 33
7.2
超½功耗(SLP)接收模式..................................................................................................................................
33
8.
用户寄存器...................................................................................................................................................................
35
8.1 CMT
区
................................................................................................................................................................ 35
8.2
系统区
................................................................................................................................................................. 36
8.3
频率区
................................................................................................................................................................. 36
8.4
数据率区
.............................................................................................................................................................. 36
8.5
基带区
................................................................................................................................................................. 37
8.6
发射区
................................................................................................................................................................. 37
8.7
控制
1
区..............................................................................................................................................................
37
8.8
控制
2
区..............................................................................................................................................................
38
9.
订购信息
...................................................................................................................................................................... 39
10.
封装信息
...................................................................................................................................................................... 40
11.
顶部丝印
...................................................................................................................................................................... 41
11.1 CMT2300A
顶部丝印
........................................................................................................................................... 41
12.
其它文档
...................................................................................................................................................................... 42
13.
文档变更记½
............................................................................................................................................................... 43
14.
联系信息
...................................................................................................................................................................... 44
Rev 0.8 | Page3/44
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CMT2300A
1.
电气特性
V
DD
= 3.3 V,T
OP
= 25 °
C,F
RF
= 433.92 MHz,灵敏度是通过接收一个PN9
序列及匹配至50
Ω阻抗下,0.1%BER
的标准下测得。
除非另行声明,所有结果½是在评估板CMT2300A-EM 上测试得到。
1.1
推荐运行条件
表
1.
推荐运行条件
参数
运行电源电压
运行温度
电源电压斜率
符号
V
DD
T
OP
条件
最小
1.8
-40
1
典型
最大
3.6
85
单½
V
℃
mV/us
1.2
绝对最大额定值
表
2.
绝对最大额定值
参数
电源电压
接口电压
结温
储藏温度
焊接温度
ESD
等级
[2]
栓锁电流
备注:
[1].
超过“绝对最大额定参数”可½会造成设备永久性损坏。该值为压力额定值,并不意味着在该压力条件下设备功½受½响,
½如果长时间暴露在绝对最大额定值条件下,可½会½响设备可靠性。
[2]. CMT2300A
是高性½射频集成电路,对本芯片的操½和装配只应该在具有良½
ESD
保护的工½台上进行。
符号
V
DD
V
IN
T
J
T
STG
T
SDR
持续至少
30
秒
人½模型(HBM)
@ 85
℃
-2
-100
条件
[1]
最小
-0.3
-0.3
-40
-50
最大
3.6
3.6
125
150
255
2
100
单½
V
V
℃
℃
℃
kV
mA
警告!
ESD敏感器件.
对芯片进行操½的时候应注意做½ESD防范措½,以免
芯片的性½下降或者功½丧失。
Rev 0.8 | Page4/44
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CMT2300A
1.3
功耗
表
3.
功耗规格
参数
Sleep
电流
Standby
电流
符号
I
SLEEP
I
Standby
条件
睡眠模式,睡眠计数器关闭
睡眠模式,睡眠计数器开启
晶½振荡器开启
433 MHz
RFS
电流
I
RFS
868 MHz
915 MHz
433 MHz
TFS
电流
I
TFS
868 MHz
915 MHz
FSK, 433 MHz, 10 kbps,10 kHz F
DEV
RX
电流(高功耗)
I
Rx-HP
FSK, 868 MHz, 10 kbps, 10 kHz F
DEV
FSK, 915 MHz, 10 kbps,10 kHz F
DEV
FSK, 433 MHz, 10 kbps, 10 kHz F
DEV
RX
电流(½功耗)
I
Rx-LP
FSK, 868 MHz, 10 kbps, 10 kHz F
DEV
FSK, 915 MHz, 10 kbps, 10 kHz F
DEV
FSK, 433 MHz, +20 dBm (直连)
FSK, 433 MHz, +20 dBm (RF
开关)
FSK, 433 MHz, +13 dBm (直连)
FSK, 433 MHz, +10 dBm (直连)
FSK, 433 MHz, -10 dBm (直连)
FSK, 868 MHz, +20 dBm (直连)
FSK, 868 MHz, +20 dBm (RF
开关)
TX
电流
I
Tx
FSK, 868 MHz, +13 dBm (直连)
FSK, 868 MHz, +10 dBm (直连)
FSK, 868 MHz, -10 dBm (直连)
FSK, 915 MHz, +20 dBm (直连)
FSK, 915 MHz, +20 dBm (RF
开关)
FSK, 915 MHz, +13 dBm (直连)
FSK, 915 MHz, +10 dBm (直连)
FSK, 915 MHz, -10 dBm (直连)
最小
典型
300
800
1.45
5.7
5.8
5.8
5.6
5.9
5.9
8.5
8.6
8.9
7.2
7.3
7.6
72
77
23
18
8
87
80
27
19
8
70
75
28
19
8
最大
参数
nA
nA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
Rev 0.8 | Page5/44
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