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TDA8786AG/C1/R1 View Datasheet(PDF) - Philips Electronics

Part Name
Description
View to exact match
TDA8786AG/C1/R1
Philips
Philips Electronics Philips
TDA8786AG/C1/R1 Datasheet PDF : 28 Pages
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Philips Semiconductors
10-bit analog-to-digital interface for
CCD cameras
Product specification
TDA8786; TDA8786A
FEATURES
Correlated Double Sampling (CDS), AGC, soft clipper,
pre-blanking, 10-bit ADC and reference regulator
included
Fully programmable via a 3-wire serial interface
Sampling frequency up to 18 MHz
AGC gain from 3.5 to 33.5 dB (in 0.1 dB steps)
Programmable soft clipper for white compression
(starting at 40% of the input signal)
Standby mode available for each block for power saving
applications (19 mW)
6 dB fixed gain analog output for analog iris control
8-bit and 10-bit DAC included for analog settings
Low power consumption of only 475 mW (typ.)
5 V operation and 2.5 to 5 V operation for the digital
outputs
CDS control pulse: TDA8786 = HIGH;
TDA8786A = LOW
TTL compatible inputs, TTL and CMOS compatible
outputs.
GENERAL DESCRIPTION
The TDA8786; TDA8786A is a 10-bit analog-to-digital
interface for CCD cameras. The device includes a
correlated double sampling circuit, AGC, a soft clipper
circuit and a low power 10-bit Analog-to-Digital Converter
(ADC) together with its reference voltage regulator.
The AGC and soft clipper circuits are controlled by on-chip
DACs via a serial interface.
A 10-bit DAC controls the ADC input clamp level.
A pre-blanking function is also included.
An additional DAC is provided for additional system
controls; its output voltage range is 1.4 V (p-p) which is
available at pin OFDOUT.
APPLICATIONS
CCD camera systems.
QUICK REFERENCE DATA
SYMBOL
VCCA
VCCD
VCCO
ICCA
ICCD
ICCO
ADCres
Vi(CDS)(p-p)
GCDS
fCLK(max)
AGCdyn
Ntot(rms)
Ptot
PARAMETER
analog supply voltage
digital supply voltage
digital outputs supply voltage
analog supply current
digital supply current
digital outputs supply current
ADC resolution
CDS input voltage (peak-to-peak value)
CDS output amplifier gain
maximum clock frequency
AGC dynamic range
total noise from CDS input to ADC
output (RMS value)
total power consumption
CONDITIONS
fCLK = 18 MHz;
CL = 20 pF; ramp input
gain = 3.5 dB
MIN.
4.5
4.5
2.5
TYP.
4.75
4.75
2.6
83
16
1
MAX.
5.5
5.5
5.5
UNIT
V
V
V
mA
mA
mA
10
bits
400 1200 mV
6
dB
18
MHz
30
dB
0.5
LSB
475
mW
ORDERING INFORMATION
TYPE
NUMBER
TDA8786G
TDA8786AG
NAME
LQFP48
PACKAGE
DESCRIPTION
plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm
1997 Nov 17
2
VERSION
SOT313-2
 

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