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參數資料
| 型號： | 935254680551 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP48 |
| 封裝： | PLASTIC, LQFP-48 |
| 文件頁數： | 26/31頁 |
| 文件大小： | 186K |
| 代理商： | 935254680551 |
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1997 Nov 17
4
Philips Semiconductors
Product specication
10-bit analog-to-digital interface for
CCD cameras
TDA8786; TDA8786A
PINNING
SYMBOL
PIN
DESCRIPTION
CLPOPB
1
optical black clamp control pulse input (active HIGH for TDA8786, active LOW for TDA8786A)
PBK
2
pre-blanking control pulse input; if PBK is HIGH (LOW) the signal is replaced by the optical
black level for TDA8786 (TDA8786A)
OFDOUT
3
analog output of the additional 8-bit control DAC (controlled via the serial interface)
AMPOUT
4
CDS amplier output (xed gain = +6 dB)
AGND1
5
analog ground 1
VCCA1
6
analog supply voltage 1
AGCOUT
7
AGC and soft clipper amplier signal output
PBIN
8
optical black clamp and pre-blanking block signal input (from AGCOUT via a capacitor)
PBOUT
9
optical black clamp and pre-blanking block signal output
ADCIN
10
ADC analog signal input (from PBOUT or AGCOUT via a capacitor)
CLPADC
11
clamp control input for ADC analog input signal clamp (active HIGH for TDA8786 and active
LOW for TDA8786A)
Vref
12
ADC input clamp reference voltage (normally connected to pin VRB or DACOUT)
DACOUT
13
DAC output for ADC clamp level
AGND2
14
analog ground 2
VCCA2
15
analog supply voltage 2
VRB
16
ADC reference voltage (BOTTOM) code 0
VRT
17
ADC reference voltage (TOP) code 1023
DEC1
18
decoupling 1 (decoupled to ground via a capacitor)
STGE
19
CDS offset storage
SDATA
20
serial data input for the 4 control DACs (9-bit DAC for AGC gain, 4-bit DAC for soft clipper;
additional 8-bit DAC for OFD output voltage; 10-bit DAC for ADC clamp level and the stand-by
mode per block; see Table 1)
SCLK
21
serial clock input for the control DACs and their serial interface; see Table 1
SEN
22
enable input for the serial interface shift register (active when SEN = logic 0); see Table 1
STDBY
23
stand-by control pin (active HIGH); all the output bits are logic 0 when stand-by is enabled
VCCD1
24
digital supply voltage 1
DGND1
25
digital ground 1
D0
26
ADC digital output 0 (LSB)
D1
27
ADC digital output 1
D2
28
ADC digital output 2
D3
29
ADC digital output 3
D4
30
ADC digital output 4
D5
31
ADC digital output 5
D6
32
ADC digital output 6
D7
33
ADC digital output 7
D8
34
ADC digital output 8
D9
35
ADC digital output 9 (MSB)
OGND
36
digital output ground
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