BT864A データシートの表示（PDF） - Conexant Systems

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BT864A

YCrCb to NTSC/PAL Digital Video Encoder

Conexant Systems 

Bt864A/865A

YCrCb to NTSC/PAL Digital Video Encoder

1.0 Circuit Description

1.1 Pin Descriptions

Table 1-1. Pin Assignments (3 of 3)

Pin Name

I/O

Pin #

Description

COMP

O5

Compensation pin. A 0.1 µF ceramic capacitor must be used to decouple this

pin to VAA. The capacitor must be as close to the device as possible to keep lead

lengths to an absolute minimum.

VAA

–4

Analog power. Refer to PC Board Considerations section of this document.

VDD

– 37, 23, 46

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

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.

NOTE(S):

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

Figure 1-1. 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

100138B

Conexant

1-3

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