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参数资料
| 型号： | TDA7427AD1TR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 200 MHz, PDSO28 |
| 封装： | SO-28 |
| 文件页数： | 16/22页 |
| 文件大小： | 444K |
| 代理商： | TDA7427AD1TR |
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
3/21
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