Datasheet

© 2006 Fairchild Semiconductor Corporation www.fairchildsemi.com
FSHDMI08 Rev. 1.0.4 2
FSHMDI08 — Low-Voltage, Wide-Bandwidth, HDMI Switch with DDC and CEC Multiplexer
Functional Diagram
Control
GND
S
TMDS
1D2+
1D2-
1D0+
1D0-
1D1+
1D1-
D2+
D0+
D0-
D2-
D1-
D1+
1CLK+
1CLK-
CLK-
CLK+
2D2+
2D1+
2D0+
2D0-
2D2-
2D1-
2CLK+
2CLK-
SCL
SDA
CEC
HPD
SCL1
SDA1
CEC1
HPD1
SCL2
SDA2
CEC2
HPD2
V
CC3
V
DDC
DGND
/OE
TMDS
/OE
DDC
S
DDC
Figure 2. Functional Diagram
Pin Descriptions
Pin Name Description
1-4,6,7,11-14,16,17,
47,48,50,51,53,54
1Dn+, 1Dn-, 2Dn+, 2Dn-, Dn+, Dn- TMDS Data Channels
8,9,18,19,44,45 1CLK+, 1CLK-, 2CLK+, 2CLK-, CLK+, CLK- TMDS Clock Channels
24,28,33 HPD1, HPD2, HPD Hot Plug Detects
22,26,35 SCL1, SCL2, SCL Serial Clock (DDC)
23,27,34 SDA1, SDA2, SDA Serial Data (DDC)
21,25,36 CEC1, CEC2, CEC Consumer Electronics Control (CEC)
29 V
DDC
DDC Power
20,39,40,55,56 V
CC3
TMDS Power
30 DGND DDC/CEC GND
5,10,15,38,43,46,49,52 GND GND
32,42 S
TMDS
, S
DDC
Select Pins (TMDS, DDC)
31,41 /OE
TMDS
, /OE
DDC
Output Enable (TMDS, DDC)