ADV7177KS Analog Devices Inc, ADV7177KS Datasheet - Page 22

• Manufacturer Part Number: ADV7177KS
• Description: IC DAC VIDEO NTSC 3-CH 44MQFP
• Manufacturer: Analog Devices Inc
• Type: Video Encoderr

Specifications of ADV7177KS

• Rohs Status: RoHS non-compliant
• Applications: Set-Top Boxes, TV
• Voltage - Supply, Analog: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 44-MQFP, 44-PQFP
• Adc/dac Resolution: 9b
• Screening Level: Commercial
• Package Type: MQFP
• Pin Count: 44
• Voltage - Supply, Digital: -
• Lead Free Status / RoHS Status: Not Compliant

ADV7177/ADV7178
Mode 2: Slave Option HSYNC , VSYNC , BLANK
Timing Register 0 TR0 = X X X X X 1 0 0
In this mode, the ADV7177/ADV7178 accept horizontal and vertical SYNC signals. A coincident low transition of both HSYNC and
VSYNC inputs indicates the start of an odd field. A VSYNC low transition when HSYNC is high indicates the start of an even field. The
BLANK signal is optional. When the BLANK input is disabled, the ADV7177/ADV7178 automatically blank all normally blank lines as
per the BT-470 specification. Mode 2 is illustrated in Figure 21 (NTSC) and Figure 22 (PAL).
HSYNC
BLANK
VSYNC
HSYNC
BLANK
VSYNC
HSYNC
BLANK
HSYNC
BLANK
VSYNC
VSYNC
522
DISPLAY
260
DISPLAY
622
309
523
DISPLAY
DISPLAY
261
623
310
524
262
624
311
525
EVEN FIELD
263
ODD FIELD
625
312
1
264
EVEN FIELD
ODD FIELD
2
313
265
1
3
266
314
2
Figure 21. Timing Mode 2 (NTSC)
Figure 22. Timing Mode 2 (PAL)
4
267
315
3
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ODD FIELD
5
VERTICAL BLANK
268
EVEN FIELD
316
4
VERTICAL BLANK
VERTICAL BLANK
6
269
317
EVEN FIELD
5
ODD FIELD
VERTICAL BLANK
7
270
318
6
8
271
319
7
9
272
10
320
273
11
274
21
334
22
20
283
DISPLAY
335
23
21
284
DISPLAY
DISPLAY
336
22
DISPLAY
285