CCD cameras. TDA8787 Datasheet

TDA8787 cameras. Datasheet pdf. Equivalent

Part TDA8787
Description 10-bit/ 3.0 V analog-to-digital interface for CCD cameras
Feature INTEGRATED CIRCUITS DATA SHEET TDA8787 10-bit, 3.0 V analog-to-digital interface for CCD cameras P.
Manufacture NXP
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TDA8787
INTEGRATED CIRCUITS
DATA SHEET
TDA8787
10-bit, 3.0 V analog-to-digital
interface for CCD cameras
Preliminary specification
Supersedes data of 1998 Mar 27
File under Integrated Circuits, IC02
1998 Oct 15



TDA8787
Philips Semiconductors
10-bit, 3.0 V analog-to-digital interface for
CCD cameras
Preliminary specification
TDA8787
FEATURES
Correlated Double Sampling (CDS), Automatic Gain
Control (AGC), 10-bit Analog-to-Digital Converter (ADC)
and reference regulator included
Fully programmable via a 3-wire serial interface
Sampling frequency up to 18 MHz
AGC gain range of 36 dB (in steps of 0.1 dB)
Low power consumption of only 190 mW (typ.)
Power consumption in standby mode of 4.5 mW (typ.)
3.0 V operation and 2.5 to 3.6 V operation for the digital
outputs
Active control pulses polarity selectable via serial
interface
8-bit DAC included for analog settings
TTL compatible inputs, CMOS compatible outputs.
APPLICATIONS
Low-power, low-voltage CCD camera systems.
GENERAL DESCRIPTION
The TDA8787 is a 10-bit analog-to-digital interface for
CCD cameras. The device includes a correlated double
sampling circuit, AGC and a low-power 10-bit ADC
together with its reference voltage regulator.
AGC gain is controlled via the serial interface.
The ADC input clamp level is controlled via the serial
interface.
An additional DAC is provided for additional system
controls; its output voltage range is 1.0 V (p-p) which is
available at pin OFDOUT.
QUICK REFERENCE DATA
SYMBOL
VCCA
VCCD
VCCO
ICCA
ICCD
ICCO
PARAMETER
analog supply voltage
digital supply voltage
digital outputs supply voltage
analog supply current
digital supply current
digital outputs supply current
ADCres
Vi(CDS)(p-p)
fpix(max)
fpix(min)
DRAGC
Ntot(rms)
Ptot
ADC resolution
maximum CDS input voltage
(peak-to-peak value)
maximum pixel rate
minimum pixel rate
AGC dynamic range
total noise from CDS input to
ADC output
total power consumption
CONDITIONS
MIN.
2.7
2.7
2.5
all clamps active
fpix = 18 MHz; CL = 20 pF;
input ramp response time is 800 µs
VCC = 2.85 V
VCC 3.0 V
650
800
18
AGC gain = 0 dB; see Fig.8
5
TYP.
3.0
3.0
2.6
55
8
1
10
36
0.25
MAX. UNIT
3.6 V
3.6 V
3.6 V
70 mA
11 mA
2 mA
bits
mV
mV
MHz
MHz
dB
LSB
VCCA = VCCD = VCCO = 3 V
190 mW
ORDERING INFORMATION
TYPE
NUMBER
TDA8787HL
NAME
LQFP48
PACKAGE
DESCRIPTION
plastic low profile quad flat package; 48 leads; body 7 × 7 × 1.4 mm
VERSION
SOT313-2
1998 Oct 15
2





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