bt865a Conexant Systems, Inc., bt865a Datasheet - Page 20

• Manufacturer Part Number: bt865a
• Description: Ycrcb To Ntsc/pal Digital Video Encoder
• Manufacturer: Conexant Systems, Inc.

Circuit Description
Figure 1-6. Interlaced 625-Line (PAL-B, D, G, H, I, Nc) Video Timing
1-10
GENERAL NOTE: EVBI = 0.
Blanking
Intervals
620
620
Burst
308
308
621
621
309
309
622
Burst Phase = Reference Phase = 135˚ relative to U
PAL Switch = 0, +V Component
Burst Phase = Reference Phase + 90˚ = 225˚ relative to U
PAL Switch = 1, –V Component
622
310
310
623
623
311
311
624
624
312
312
625
625
313
313
FIELD Three
FIELD Four
FIELD One
FIELD Two
1
1
–U PHASE
Analog
FIELD 1
Analog
FIELD 2
Analog
FIELD 3
Analog
FIELD 4
314
314
RESET*
2
Conexant
2
315
315
3
3
316
316
4
4
317
317
5
5
318
318
6
6
319
319
7
7
320
320
VSYNC*
Bt864A/Bt865A Data Sheet
23
23
336
336
24
24
337
337
100138C
02/17/03
100138_007