TC90A49P/F

2001-03-06 4/17

PIN

No.

PIN NAME

FUNCTION

I / O

INTERFACE

11 / 13

TEST

Shipment test mode switch or I

2

C bus setting reset pin.

When High, test mode, setting all I

2

C bus settings to 0.

Hold High for at least 100µs. Send I

2

C bus settings

when this pin is Low.

I

12 / 14

KILLER

Y signal comb function ON / OFF switch.

When High, comb OFF. When Low, comb ON. When

[data 3 : bit 0] is 1, used as vertical edge enhancement

circuit ON / OFF switch.

I

13 / 15

CKIN

Clock input pin. Pin 13 put a sine wave which is locked

to the frequency of the burst signal in the input video

an amplitude as possible without affecting peripheral

circuits.

I

14 / 17

FIL

Connect the APC filter in the 8 fsc PLL circuit.

−

15 / 18

PLL power supply.

−

−

16 / 19

ADC, DAC, and PLL GND (analog).

−

−

17 / 20

Outputs chrominance signal. External simple LPF for

clock elimination recommended.

O