参数资料
型号: TMDS251PAGR
厂商: TEXAS INSTRUMENTS INC
元件分类: 多路复用及模拟开关
英文描述: 3-CHANNEL, AUDIO/VIDEO SWITCH, PQFP64
封装: GREEN, PLASTIC, TQFP-64
文件页数: 24/28页
文件大小: 751K
代理商: TMDS251PAGR
www.ti.com
SLLS852 – AUGUST 2007
TERMINAL FUNCTIONS
TERMINAL
I/O
DESCRIPTION
NAME
NO.
A11, A12, A13, A14
39, 42, 45, 48
I
Source port 1 TMDS positive inputs
A21, A22, A23, A24
54, 57, 60, 63
I
Source port 2 TMDS positive inputs
B11, B12, B13, B14
38, 41, 44, 47
I
Source port 1 TMDS negative inputs
B21, B22, B23, B24
53, 56, 59, 62
I
Source port 2 TMDS negative inputs
Y1, Y2, Y3, Y4
26,23,20,17
O
Sink port TMDS positive outputs
Z1, Z2, Z3, Z4
27,24,21,18
O
Sink port TMDS negative outputs
SCL1
37
I/O
Source port 1 DDC I2C clock line
SDA1
36
I/O
Source port 1 DDC I2C data line
SCL2
52
I/O
Source port 2 DDC I2C clock line
SDA2
51
I/O
Source port 2 DDC I2C data line
SCL_SINK
29
I/O
Sink port DDC I2C clock line
SDA_SINK
30
I/O
Sink port DDC I2C data line
HPD1
35
O
Source port 1 hot plug detector output (status pin)
HPD2
50
O
Source port 2 hot plug detector output (status pin)
HPD_SINK
31
I
Sink port hot plug detector input (status pin)
S1, S2
32, 33
I
Source selector
TMDS Input equalization selector (control pin)
EQ
34
I
EQ = Low – HDMI 1.3 compliant cable
EQ = High – 10m 28 AWG HDMI cable
VSADJ
16
I
TMDS compliant voltage swing control (control pin)
VDD
49
HPD/DDC Power supply
6, 12, 19, 25, 40,
VCC
Power supply
46, 55, 61
3, 9, 15, 22, 28,
GND
Ground
43, 58
1, 2, 4, 5, 7, 8,
NC
No connect: these pins should be left floating
10, 11, 13, 14, 64
Table 1. Source Selection Lookup(1)
CONTROL BITS
I/O SELECTED
HOT PLUG DETECT STATUS
SCL_SINK
S2
S1
Y/Z
HPD1
HPD2
SDA_SINK
A1/B1
SCL1
H
Terminations of A2/B2 are
HPD_SINK
L
SDA1
disconnected
A2/B2
SCL2
H
L
Terminations of A1/B1 are
L
HPD_SINK
SDA2
disconnected
Disallowed (indeterminate)
State
L
None (Z)
All terminations are
Are pulled HIGH by
disconnected
external pull-up
None (Z)
termination
L
H
All terminations are
HPD_SINK
disconnected
(1)
H: Logic high; L: Logic low; X: Don't care; Z: High impedance
Copyright 2007, Texas Instruments Incorporated
5
Product Folder Link(s): TMDS251
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