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TDA8708 Arkusz danych(PDF) 10 Page - NXP Semiconductors |
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TDA8708 Arkusz danych(HTML) 10 Page - NXP Semiconductors |
10 / 24 page 1996 Nov 26 10 Philips Semiconductors Product specification Video analog input interface TDA8708B Table 1 Video input selection (CVBS) Table 2 AGC output current Notes 1. Mode 2 can only be initialized with successive pulses on GATE A and GATE B (see Fig.5). 2. X = don’t care. I1 I0 SELECTED INPUT 0 0 VIN0 0 1 VIN1 1 0 VIN2 1 1 VIN2 GATE A GATE B DIGITAL OUTPUT IAGC MODE(1) 1 1 output < 255 −2.5 µA1 output > 255 130 µA1 0X(2) − 0 µA2 1 0 output < 0 +2.5 µA2 output > 0 −2.5 µA2 Table 3 CLAMP output current Note 1. X = don't care. Table 4 OF input coding Note 1. Use C ≥ 10 pF to DGND. GATE A GATE B DIGITAL OUTPUT ICLAMP MODE 1 1 output < 0 130 µA1 output > 0 −2.5 µA1 X(1) 0X 0 µA2 0 1 output < 64 +50 µA2 64 < output −50 µA2 OF D0 TO D7 0 active, two’s complement 1 high impedance open circuit(1) active, binary Table 5 Output coding and input voltage (typical values) STEP VADCIN BINARY OUTPUTS TWO’S COMPLEMENT D7 D6 D5 D4 D3 D2 D1 D0 D7 D6 D5 D4 D3 D2 D1 D0 Underflow − 0000000010000000 0VCCA − 2.41 V 0000000010000000 1 − 0000000110000001 . − ................ . − ................ 254 − 1111111001111110 255 VCCA − 1.41 V 1111111101111111 Overflow − 1111111101111111 |
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