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TDA7427A Datasheet(PDF) 3 Page - STMicroelectronics

Part # TDA7427A
Description  AM-FM RADIO FREQUENCY SYNTHESIZER AND IF COUNTER
PDF  21 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7427A Datasheet(HTML) 3 Page - STMicroelectronics

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PIN DESCRIPTION
PIN
SYMBOL
DESCRIPTION
1
LP_FM
Filter OPAMP input, charge pump output (FM mode)
2
LP_HC
Filter OPAMP input, charge pump output (high current mode)
3
LP_AM
Filter OPAMP input, charge pump output (AM mode)
4
VREF
OPAMP reference voltage
5
DOUT3
Digital Output 3 (open collector)
6
DOUT4
Digital Output 4 (open collector)
7
DOUT5
Digital Output 5 (open collector)
8
DOUT6
Digital Output 6 (open collector)
9
OSCIN
Reference Oscillator Input
10
OSCOUT
Reference Oscillator Output
11
N.C.
Not connected
12
SCL
I
2C bus clock input
13
SDA
I
2C bus data I/O
14
IF_AM
IF counter HF input
15
IF_FM
IF counter VHF input
16
SSTOP
IF counter result output
17*
DOUT1
Digital output 1 (push-pull)
17*
INLOCK
Inlock detector output
18
DOUT2
Digital Output 2 (open collector)
19
HF-REF
HF reference pin
20
ADDR
I
2C bus address pin
21
VDD1
Supply Voltage
22
GND-DIG
Digital ground
23
N.C.
Not connected
24
FM_IN
High frequency input FM
25
AM_IN
High frequency input AM
26
GND-AN
Analog ground
27
VDD2
Supply Voltage
28
LP_OUT
Filter OPAMP output
* Pin function is selectable by software (see software specification)
TDA7427A
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