TDA8786 Datasheet, PDF (15/28 Pages) NXP Semiconductors – 10-bit analog-to-digital interface for CCD cameras

Philips Semiconductors
10-bit analog-to-digital interface for
CCD cameras
Product specification
TDA8786; TDA8786A
handboIPok_B, _Ih_Nalfpage
(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.
hanId_Ab_Doo_Ck,_INhalfpage
(µA)
450
0
−450
slope = 1 kΩ
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 V_ref.
V_ref should normally be connected to V_RB (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