FXMHD103UMX Datasheet, PDF (4/16 Pages) Fairchild Semiconductor – FXMHD103 HDMI Voltage Translator

Pin Configuration
12 11 10 9
SCL_H
1
SDA_H
2
8 _{CEC_C}
7 SCL_C
345 6
Figure 4. Pin Assignments (Top View)
Pin Definitions
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
Signal Name
SCL_H
SDA_H
OE
GND
VCCC
SDA_C
SCL_C
CEC_C
HPD_C
HPD_H
VCCA
CEC_H
Description
Host-side (DDC) SCL bi-directional I²C pin; referenced to VCCA.
Host-side (DDC) SDA bi-directional I²C pin; referenced to VCCA.
Output enable: LOW=DDC, CEC, & HPD paths disabled; HIGH=DDC, CEC, & HPD
paths enabled.
Device GND
HDMI port supply: 5V V_CC reference for HPD_C, SCL_C, SDA_C, and V_REG input.
Connector-side (DDC) SDA bi-directional I²C pin; referenced to VCCC.
Connector-side (DDC) SCL bi-directional I²C pin; referenced to VCCC.
Connector-side (CEC) bi-directional pin; referenced to internal 3.3V voltage regulator
(V_REG). RPU decoupled from “3.3V Internal” if OE=LOW.
Connector-side HPD, input for the “hot plug” detect.
Host-side HPD; output for the hot plug detect. This pin references VCCA and
indicates to the HDMI controller (HDMI source) when there is an HDMI sink connected
to the FXMHD103.
Host-side power supply, 1.6V – 3.6V.
Host-side CEC, bi-directional pin; referenced to VCCA. RPU decoupled from VCCA if
OE=LOW.
© 2012 Fairchild Semiconductor Corporation
FXMHD103 • Rev. 1.0.2
4
www.fairchildsemi.com