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CD2111CB Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

Part # CD2111CB
Description  FM AM monolithic radio circuit
PDF  8 Pages
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Manufacturer  ETC [List of Unclassifed Manufacturers]
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CD2111CB Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers

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华晶双极电路
CD2111CP
调频调幅单片收音机电路
1. 概述与特点
CD2111CP 是一块调频/调幅单片收音机电路
主要用于便携式收音机和 3V 带耳机收音机
为满足美国通信委员会关于电磁辐射的新标准 调频本振幅度相应地被设低 其特点如下
符合美国通信委员会的新标准
不需要调幅检波线圈 调频中频变压器 中频耦合电容
使用陶瓷鉴频器 无需调整调频正交鉴频检波回路
内置调频立体声压控振荡回路及立体声解码电路
内置用于自动相位控制的可变电容
内置调幅低关断回路
电源电流低 (V
CC = 3V
Tamb = 25 ) ICC(FM) = 9.0mA(典型)
ICC(AM) = 5.0mA(典型)
电源电压工作范围宽 V
CC = 1.8~7V (Tamb = 25
)
封装形式 SDIP24
2. 功能框图与引脚说明
2.1 功能框图
无锡华晶微电子股份有限公司
地址 江苏省无锡市梁溪路 14 号
电话
0510
5807123-5506
传真
0510
5803016
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调频
高放
调频
混频
调幅
混频
调频
本振
调幅
本振
AGC
调幅
中放
调频
中放
调幅
检波
调频
检波
调频
静噪
音频
缓冲
电平
检测
调谐
指示
立体声
指示
放大
音频
移相
解码
压控振荡器
回差
分频器
立体声/
单声道
调频/调幅


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