BT865A View Datasheet(PDF) - Unspecified

Part Name

Description

Manufacturer

BT865A

YCrCb to NTSC/PAL Digital Video Encoder

Unspecified 

Bt864A/865A

YCrCb to NTSC/PAL Digital Video Encoder

CIRCUIT DESCRIPTION

Pin Descriptions

Table 1. Pin Assignments (3 of 3)

Pin Name

I/O

Pin #

Description

VBIAS

VREF

COMP

O2

O3

O5

DAC bias voltage. A 0.1 µF ceramic capacitor must be used to decouple

this pin to GND. The capacitor must be as close to the device as possi-

ble to keep lead lengths to an absolute minimum.

Voltage reference pin. A 0.1 µF ceramic capacitor must be used to

decouple this pin to GND. The capacitor must be as close to the device

as possible to keep lead lengths to an absolute minimum.

Compensation pin. A 0.1 µF ceramic capacitor must be used to decou-

ple this pin to VAA. The capacitor must be as close to the device as pos-

sible to keep lead lengths to an absolute minimum.

VAA

–4

Analog power. Refer to PC Board Considerations section of this docu-

ment.

VDD

– 37, 23, 46

Digital power. Refer to the PC Board Considerations section of this doc-

ument.

AGND

– 51, 52

Analog ground. Refer to the PC Board Considerations section of this

document.

GND

– 22, 36, 45

Digital ground. Refer to the PC Board Considerations section of this

document.

Notes: (1). Any unused inputs should not be left floating.

Figure 1. Bt864A/865A Pinout Diagram

FS ADJUST 1

VBIAS 2

VREF 3

VAA 4

COMP 5

AGND 6

AGND 7

CVBS/B 8

AGND 9

CVBS/G 10

AGND 11

C/R 12

Y/CVBS 13

39 SLEEP

38 TTXREQ

37 VDD

36 GND

35 P[7]

34 P[6]

33 P[5]

32 P[4]

31 P[3]

30 P[2]

29 P[1]

28 P[0]

27 TTXDAT

L865A_A unreleased

3

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