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CM1412

产品描述Passive Filter
产品类别模拟混合信号IC    过滤器   
文件大小247KB,共6页
制造商California Micro Devices
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CM1412概述

Passive Filter

CM1412规格参数

参数名称属性值
厂商名称California Micro Devices
Reach Compliance Codeunknown

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CM1412
2 Channel Headset Microphone EMI Filter with ESD Protection
Features
Functionally and pin compatible with CMD’s
CSPEMI202A
OptiGuard
coated for improved reliability at
assembly
Two channels of EMI filtering
Pi-style EMI filters in a capacitor-resistor-capacitor
(C-R-C) network
Greater than 40dB attenuation at 1GHz
+
8kV ESD protection on each channel
(IEC 61000-4-2 Level 4, contact discharge)
+
15kV ESD protection on each channel (HBM)
Supports AC signals—ideal for audio applications
Chip Scale Package features extremely low
lead inductance for optimum filter and ESD
performance
5-bump, 0.950mm X 1.410mm footprint
Chip Scale Package (CSP)
Lead-free version available
Product Description
The CM1412 is a dual low-pass filter array integrating
two pi-style filters (C-R-C) that reduce EMI/RFI emis-
sions while at the same time providing ESD protection.
This part is custom-designed to interface with a micro-
phone port on a cellular telephone or similar device.
Each high quality filter provides more than 35dB atten-
uation in the 800-2700 MHz range. These pi-style fil-
ters support bidirectional filtering, controlling EMI both
to and from a microphone element. They also support
AC signals, enabling audio signals to pass through
without distortion.
In addition, the CM1412 provides a very high level of
protection for sensitive electronic components that may
be subjected to electrostatic discharge (ESD). The
input pins are designed and characterized to safely dis-
sipate ESD strikes of 8kV, the maximum requirement of
the IEC 61000-4-2 international standard. Using the
MIL-STD-883 (Method 3015) specification for Human
Body Model (HBM) ESD, the device provides protec-
tion for contact discharges to greater than 15kV.
The CM1412 is particularly well suited for portable
electronics (e.g., cellular telephones, PDAs, notebook
computers) because of its small package format and
low weight. The CM1412 incorporates OptiGuard
coating which results in improved reliability at assem-
bly and is available in a space-saving, low-profile Chip
Scale Package with optional lead-free finishing.
Applications
EMI filtering and ESD protection for headset
microphone ports
Wireless Handsets
Handheld PCs / PDAs
MP3 Players
Digital Camcorders
Notebooks
Desktop PCs
Electrical Schematic
A1
47pF
68Ω
C1
47pF
MIC_IN1
MIC_OUT1
MIC_IN2
A3
47pF
68Ω
C3
47pF
MIC_OUT2
GND
B2
©
2004 California Micro Devices Corp. All rights reserved.
06/28/04
430 N. McCarthy Blvd., Milpitas, CA 95035-5112
Tel: 408.263.3214
Fax: 408.263.7846
www.calmicro.com
1

CM1412相似产品对比

CM1412 CM1412-03CP CM1412-03CS
描述 Passive Filter Data Line Filter, 5 Pin(s), Plastic, Data Line Filter, 2 Function(s)
厂商名称 California Micro Devices California Micro Devices California Micro Devices
Reach Compliance Code unknown unknown unknown
是否Rohs认证 - 符合 不符合
滤波器类型 - DATA LINE FILTER DATA LINE FILTER
安装类型 - SURFACE MOUNT SURFACE MOUNT
最高工作温度 - 85 °C 85 °C
最低工作温度 - -40 °C -40 °C
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