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參數(shù)資料
| 型號： | CXD2131Q |
| 廠商： | Sony Corporation |
| 英文描述： | Video Aspect Ratio Identification Signal Encoder/Decoder |
| 中文描述： | 視頻寬高比識別信號編碼器/解碼器 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 189K |
| 代理商： | CXD2131Q |
– 8 –
CXD2131Q
μCOM
→
CXD2131
WORD0
bit1, bit2
don’t
care
WORD0
bit3 to bit6
WORD1
WORD2
ISEL
IRES
OE
TEST
LNJ1
don’t
care
SIEN
Video aspect ratio identification signals
carried on video signal (encoded)
Decode input
switching
Encode
ON/OFF
Decode/encode;
"1" = circuit reset, not standby
Existence of 1 line
before and after
decode range
Normally "0"
Validity/invalidity of all
setting data; "1" = valid
4bit
2bit
4bit
1bit
1bit
1bit
2bit
4bit
1bit
1bit
1bit
2bit
Total 24 bits
CXD2131
→
μCOM
WORD0
bit1, bit2
WORD0
bit3 to bit6
WORD1
WORD2
4bit
2bit
1bit
1bit
Total 16 bits
VALID
CRCC
4bit
4bit
"1" when CRCC
result is correct
"1" when data validity
criterion result is correct
Video aspect ratio
identification signals extracted
from video signal (decoded)
Video aspect ratio identification signals
extracted from video signal (decoded)
Fig. 1 (a). Bit configuration of 4-line serial interface
XCS
tdsot
tzsro
SCLK
SRIN
SROT
tzsro
tsusc
thdsc
HI-Z
HI-Z
don’t care
Fig. 1 (b). 4-line serial interface timing
Set-up to SRIN SCLK rising edge
Hold to SRIN SCLK rising edge
Delay from SROT SCLK falling edge
Three-state control delay by SROT XCS
Item
Symbol
t
susc
t
hdsc
t
dsot
t
zsro
Condition
Cload = 20pF
Rload = 2k
10
10
40
40
ns
ns
ns
ns
Min.
Typ.
Max.
Unit
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