I
參數(shù)資料
型號： ADV7180BSTZ-REEL
廠商： Analog Devices Inc
文件頁數(shù)： 79/116頁
文件大小： 0K
描述： IC VIDEO DECODER SDTV 64-LQFP
產(chǎn)品變化通告： ADV7180 Metal Mask Edit 22/Oct/2009
設(shè)計資源： Low Cost Differential Video Receiver Using ADA4851 Amplifier and ADV7180 Video Decoder (CN0060)
Low Cost Video Multiplexer for Video Switching Using ADA4853-2 Op Amp with Disable Function (CN0076)
標(biāo)準(zhǔn)包裝： 1
類型： 視頻解碼器
應(yīng)用： 數(shù)碼相機(jī)，手機(jī)，便攜式視頻
安裝類型： 表面貼裝
封裝/外殼： 64-LQFP
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
包裝： 標(biāo)準(zhǔn)包裝
其它名稱： ADV7180BSTZ-REELDKR
Data Sheet
ADV7180
Rev. I | Page 65 of 116
CCAP
Two bytes of decoded closed caption data are available in the
I2C registers. The field information of the decoded CCAP data
can be obtained from the CC_EVEN_FIELD bit (Register 0x78).
CC_CLEAR, Closed Caption Clear, Address 0x78[0],
User Sub Map, Write Only, Self-Clearing
Setting CC_CLEAR to 1 reinitializes the CCAP readback
registers.
CC_AVL, Closed Caption Available, Address 0x78[0],
User Sub Map, Read Only
When CC_AVL is 0, closed captioning is not detected.
When CC_AVL is 1, closed captioning is detected.
CC_EVEN_FIELD, Address 0x78[1], User Sub Map,
Read Only
Identifies the field from which the CCAP data is decoded.
When CC_EVEN_FIELD is 0, closed captioning is detected
from an odd field.
When CC_EVEN_FIELD is 1, closed captioning is detected
from an even field.
VDP_CCAP_DATA_0, Address 0x79[7:0], User Sub Map,
Read Only
Decoded Byte 1 of CCAP data.
VDP_CCAP_DATA_1, Address 0x7A[7:0], User Sub Map,
Read Only
Decoded Byte 2 of CCAP data.
0
REFERENCE COLOR BURST
(9 CYCLES)
FREQUENCY = fSC = 3.579545MHz
AMPLITUDE = 40 IRE
1
7 CYCLES
OF 0.5035MHz
(CLOCK RUN-IN)
2 3 4 5 6 7 0 1 2 3 4 5 6 7
P
A
R
I
T
Y
S
T
A
R
T
P
A
R
I
T
Y
VDP_CCAP_D ATA_0
33.764s
10.003s
10.5 ± 0.25s
12.91s
27.382s
50 IRE
40 IRE
05700-
041
VDP_CCAP_D ATA_1
Figure 50. CCAP Waveform and Decoded Data Correlation
Table 82. CCAP Readback Registers1
Signal Name
Register Location
Address (User Sub Map)
CCAP_BYTE_1[7:0]
VDP_CCAP_DATA_0[7:0]
121
0x79
CCAP_BYTE_2[7:0]
VDP_CCAP_DATA_1[7:0]
122
0x7A
1
These registers are readback registers; default value does not apply.
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