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TDA8786A View Datasheet(PDF) - Philips Electronics

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TDA8786A Datasheet PDF : 28 Pages
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Philips Semiconductors
10-bit analog-to-digital interface for
CCD cameras
Product specification
TDA8786; TDA8786A
handboIPokB, IhNalfpage
(µA)
450
0
450
1.4
30 mV
VPBIN (V)
MBK058
handbookI, halfpage
(µA)
350
0
350
2.85
200 mV
V (V)
MBK057
Fig.10 Typical PBK clamp current.
Fig.11 Typical clamp currents for pins IN1, IN2 and
STGE.
hanIdAbDooCk,INhalfpage
(µA)
450
0
450
slope = 1 k
Vref
VADCIN (V)
30 mV
500 mV
MBK059
ADC clamping
When pin CLPADC is HIGH (TDA8786) (LOW for
TDA8786A), the ADC input is clamped to voltage level Vref.
Vref should normally be connected to VRB (ADC reference
voltage code 0) or to DACOUT (10-bit DAC output).
The DAC is controlled via the serial interface, its output
covers the lower half of the ADC input range.
Fig.12 Typical ADC clamp current.
1997 Nov 17
15
 

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