Datasheet > E-TDA7421N

E-TDA7421N

更新时间： 2024-01-03 21:57:58

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		信息通信管理商用集成电路
页数	文件大小	规格书
47页	332K
描述
AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64, TQFP-64

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技术参数
数据手册

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E-TDA7421N 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	TQFP-64	针数：	64
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.83
其他特性：	IT ALSO REQUIRES 4.75V TO 5.25V SUPPLY	商用集成电路类型：	AUDIO SINGLE CHIP RECEIVER
解调类型：	AM/FM	谐波失真：	1%
JESD-30 代码：	S-PQFP-G64	JESD-609代码：	e4
长度：	10 mm	湿度敏感等级：	3
功能数量：	1	端子数量：	64
最高工作温度：	85 °C	最低工作温度：	-40 °C
输出电压标称（AM）：	107 mV	标称输出电压（调频）：	400 mV
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)：	10 V
最小供电电压 (Vsup)：	7.5 V	表面贴装：	YES
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	Nickel/Palladium/Gold (Ni/Pd/Au)	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：	NOT SPECIFIED	宽度：	10 mm
Base Number Matches：	1

E-TDA7421N 数据手册

TDA7421N

AM/FM tuner for car radio and Hi-Fi applications

Not For New Design

Features

■ High performance front-end IC for AM/FM

receivers

■ Fully integrated high-speed PLL for optimized

RDS applications

■ FM MPX/AM audio output, 450 kHz AM IF

output for stereo AM applications

■ AM double conversion architecture

LQFP64

■ AM/FM station detector and digital IF-counter

■ Single frequency reference for both AM and

■ Full electrical adjustment

■ i c bus programmable

The FM quality detection circuit, in conjunction

with the digital IF counter, enables the stop-

station function in “seek” mode and MPX mute

during reception. The combination of

programmable level detector and IF counter

allows reliable AM stop-station performance.

Description

The TDA7421N is a high-performance tuner

circuit which integrates AM and FM sections, PLL

frequency synthesizer and IF counter on a single

chip.

The Automatic Gain Control (AGC) operates on

different signal bandwidths in order to optimize

sensitivity and dynamic range.

Use of BiCMOS technology allows the

implementation of tuning functions with a

minimum of external components.Value spread of

external components can be fully compensated

by means of on-chip electrical adjustment

controlled by external microprocessor.

I C-bus controls functions such as AGC, amplifier

gains, PLL and counter settings.

Table 1.

Device summary

Order code

Package

Packing

TDA7421N

LQFP64

Tray

E-TDA7421N⁽¹⁾

1. In ECOPACK® package see Section 8: Package information on page 45.

January 2009

Rev 2

1/47

This is information on a product still in production but not recommended for new designs.

www.st.com

12 3 4 5 6 7...47

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