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TDA8787

NXP
Part Number TDA8787
Manufacturer NXP
Description 10-bit/ 3.0 V analog-to-digital interface for CCD cameras
Published Apr 16, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET TDA8787 10-bit, 3.0 V analog-to-digital interface for CCD cameras Preliminary specificat...
Datasheet PDF File TDA8787 PDF File

TDA8787
TDA8787

Overview
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 Philips Semiconductors Preliminary specification 10-bit, 3.
0 V analog-to-digital interface for CCD cameras 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.
QUICK REFERENCE DATA SYMBOL VCCA VCCD VCCO ICCA ICCD ICCO ADCres Vi(CDS)(p-p) fpix(max) fpix(min) DRAGC 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 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 AGC gain = 0 dB; see Fig.
8 VCCA = VCCD = VCCO = 3 V VCC = 2.
85 V VCC ≥ 3.
0 V all clamps active CONDITIONS MIN.
2.
7 2.
7 2.
5 − − fpix = 18 MHz; CL = 20 pF; − input ramp response time is 800 µs − 650 800 18 5 − − − TYP.
3.
0 3.
0 2.
6 55 8 1 10 − − − − 36 0.
25 190 APPLICATIONS TDA8787 • 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 cla...


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