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