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TDA7427 PDF预览

TDA7427

更新时间: 2024-09-29 22:53:11
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 计数器信号电路锁相环或频率合成电路射频光电二极管无线
页数 文件大小 规格书
21页 145K
描述
AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER

TDA7427 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:DIP
包装说明:DIP-20针数:20
Reach Compliance Code:compliantHTS代码:8542.39.00.01
风险等级:5.7Is Samacsys:N
其他特性:ALSO REQUIRES A 10V NOMINAL SUPPLY模拟集成电路 - 其他类型:PLL FREQUENCY SYNTHESIZER
JESD-30 代码:R-PDIP-T20JESD-609代码:e3
长度:25.15 mm功能数量:1
端子数量:20最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:3.93 mm
最大供电电压 (Vsup):5.5 V最小供电电压 (Vsup):4.5 V
标称供电电压 (Vsup):5 V表面贴装:NO
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:THROUGH-HOLE端子节距:2.54 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:7.62 mmBase Number Matches:1

TDA7427 数据手册

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TDA7427  
AM-FM RADIO FREQUENCY SYNTHESIZER  
AND IF COUNTER  
ON-CHIP REFERENCE OSCILLATOR AND  
PROGRAMMABLE IF COUNTER  
VHF INPUT AND PRECOUNTER FOR FRE-  
QUENCIES UP TO 290MHz (SUITABLE FOR  
DAB APPLICATION)  
HF INPUT FOR FREQUENCIES UP TO  
64MHz (SHORT WAVE BAND)  
IN-LOCK DETECTOR FOR SEARCH/STOP  
STATION FUNCTION  
SO20  
DIP20  
STAND-BY MODE FOR LOW POWER CON-  
SUMPTION  
ORDERING NUMBERS:  
TDA7427(DIP20)  
TDA7427D (SO20)  
HIGH CURRENT SOURCE FOR 0.5ms  
LOCK-IN TIME  
DIGITAL PORT EXTENSION WITH TWO  
OUTPUTS FOR FLEXIBILITY IN APPLICA-  
TION  
with an additional IF counting system that per-  
forms all the functions needed in a complete PLL  
radio tuning system for conventional and high  
speed RDS tuners. The device has dedicated out-  
puts for IN-LOCK detection and Search/Stop sta-  
tion.  
FULLY PROGRAMMABLE BY I2C BUS  
DESCRIPTION  
The TDA7427 is a PLL frequency synthesizer  
BLOCK DIAGRAM  
13  
DOUT1/INLOCK  
16  
2
FM_IN  
LP_HC  
SWITCH  
AM/FM  
PRECOUNTER  
:32/33  
5 BIT PROG.  
CNT  
3
1
INLOCK  
DETECTOR  
LP_AM  
LP_FM  
SWITCH  
LP1/LP2  
14  
17  
HFREF  
AM_IN  
SWITCH  
SWM/DIR  
SWITCH  
SWM/DIR  
-
20  
PHASE  
COMP  
CHARGE  
PUMP  
LPOUT  
+
11 BIT PROG  
CNT  
VDD1  
5
6
OSCIN  
REF  
OSCILLATOR  
16 BIT PROG  
CNT  
OSCOUT  
4
VREF  
8
9
SCL  
SDA  
18  
2
I
C BUS  
GNDan/GNDdig  
INTERFACE  
19  
15  
VDD2  
VDD1  
14 BIT PROG  
CNT  
TEST  
LOGIC  
POWER ON  
RESET  
TIMER  
CONTROL  
10  
11  
IF_AM  
IF_FM  
11-21 BIT PROG CNT  
PORT EXTENSION  
12  
SSTOP  
7
D95AU418B  
DOUT3  
November 1999  
1/21  

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