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參數(shù)資料
| 型號： | PCI930PBK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 多路復用及模擬開關(guān) |
| 英文描述： | 3-CHANNEL, AUDIO/VIDEO SWITCH, PQFP128 |
| 封裝： | PLASTIC, TQFP-128 |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 191K |
| 代理商： | PCI930PBK |
PCI930
3-TO-1 ZOOMED VIDEO SWITCH
SCPS018B – OCTOBER 1997 – REVISED DECEMBER 1997
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
Table 4. Power Supply Terminal Functions
TERMINAL
TYPE
FUNCTION
NAME
NO.
TYPE
FUNCTION
5, 19, 51, 69, 81, 82, 83, 101, 115
I
Device ground terminals.
VCC
13, 27, 45, 59, 77, 91, 109, 123
I
3.3V power supply input for core.
VCCS
4, 34, 67, 99
I
Rail input for 5V tolerance on zoom video streams
Table 5. ZV Stream Interface
TERMINAL
TYPE
FUNCTION
NAME
NO.
TYPE
FUNCTION
HREF
18, 52, 84, 117
Horizontal sync to ZV port.
VSYNC
20, 53, 85, 118
Vertical sync to ZV port.
Y7:0
A_ = 127, 126, 125, 124, 122, 121, 120, 119
B_ = 29, 28, 26, 25, 24, 23, 22, 21
C_ = 62, 61, 60, 58, 57, 56, 55, 54
ZV_ = 94, 93, 92, 90, 89, 88, 87, 86
I
O
Video data to ZV port YUV:4:2:2 format.
Video data YUV:4:2:2 format.
UV7:0
A_ = 11, 10, 9, 8, 7, 6, 3, 2
B_ = 41, 40, 39, 38, 36, 35, 31, 30
C_ = 74, 73, 72, 71, 70, 68, 66, 63
ZV_ = 106, 105, 104, 103, 102, 100, 98, 95
I
O
Video data to ZV port YUV:4:2:2 format.
Video data YUV:4:2:2 format.
SCLK
12, 42, 75, 107
Audio SCLK PCM signal.
MCLK
14, 43, 76, 108
Audio MCLK PCM signal.
PCLK
17, 47, 80, 112
Pixel clock to ZV port.
LRCLK
15, 44, 78, 110
Audio LRCLK PCM signal.
SDATA
16, 46, 79, 111
Audio PCM data signal.
Inputs on A, B, and C source ports; Outputs to ZV_xx interface
control settings for ZV switch routing
Table 6 lists termination conditions that can exercise control over the ZV switch and shows the results.
Table 6. Termination Conditions
FUNCTION
CONDITION
RESULT
ZV xx inactive state
Pullup resistor on A/B_STAT
ZV_xx three-stated
ZV_xx inactive state
No pullup resistor on A/B_STAT
ZV_xx driven L
C precedence control
Pullup resistor on A/B_SEL
C takes precedence over A/B.
C precedence control
No pullup resistor on A/B_SEL
A/B takes precedence over C.
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