參數(shù)資料
型號: TDA7427
廠商: 意法半導(dǎo)體
元件分類: 通用總線功能
英文描述: AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER
中文描述: 上午- FM收音機(jī)頻率合成器和中頻計數(shù)器
文件頁數(shù): 3/21頁
文件大小: 144K
代理商: TDA7427
PIN DESCRIPTION
(TDA7427/D)
PIN
1
SYMBOL
LP_FM
DESCRIPTION
INPUT/OUTPUT
Filter OPAMP input, charge pump output (FM mode)
Filter OPAMP input, charge pump output (high current
mode)
Filter OPAMP input, charge pump output (AM mode)
OPAMPreferencevoltage
Oscillator referenceclock input
Oscillator output
Opencollectoroutput
I
2
C bus clock input
I
2
C bus data I/O
IF counterinput (AMmode)
IF counterinput (FM mode)
IF counterresult output
Digital output
Inlock detector output
HF reference
Positivepower supply 5V
High frequencyinput FM
High frequencyinput AM
Analog digitalground
Positivepower supply 10V
Filter input, change pump output
2
LP_HC
3
LP_AM
VREF
OSCIN
OSCOUT
DOUT3
SCL
SDA
IF_AM
IF_FM
SSTOP
DOUT1
INLOCK
HFREF
VDD1
FM_IN
AM_IN
GND
VDD2
LPOUT
4
5
6
7
8
9
Input
Input/output
Analog input
Analog input
Output
Push-pulloutput
Output
10
11
12
13*
13*
14
15
16
Supply
Analog input
Analog input
Supply
Supply
17
18
19
20
* Pin functionis userdefined by software
TDA7427
3/21
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TDA7427D AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER
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