Datasheet

MAX4929E
HDMI 2:1 Low-Frequency Translating Switch
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Applications Information
Power-Supply Bypassing and Sequencing
There is no power-supply sequencing required. Power
can be applied to V+, CLP, or VL in any order. Bypass
V+, VL, and CLP to GND using 0.1µF or larger ceramic
capacitors as close to the device as possible.
Hot Plug
The MAX4929E is designed for HDMI/DVI switching.
The MAX4929E permits hot-plugging to any inputs/
outputs regardless of the power status of the device.
A plug can be inserted, and thus connected to the
MAX4929E whether the device is powered up or not.
Therefore, sequencing of power supplies is not
required; V+, CLP, and VL can be applied in any order.
Configure Two Devices to Form 4:1 Switch
Two MAX4929Es can be connected together to form a
4:1 switch (see Figure 6).
Exposed Paddle
The MAX4929EETP+ provides an EP to improve thermal
performance in the TQFN package. Connect the EP to
GND or leave EP unconnected.
HIZ2
HIZ1
VL
SCLO
SDAO
GND
SEL
HPD
HPIRO
V+
+5V
MCU
EDID
EPROM
+3.3V TO +5V
+5V
HPIR1, HPDO1,
SCL1, SDA1
HPIR2, HPDO2,
SCL2, SDA2
HDMI1
HDMI2
V
MCU
V
MCU
R
P
2kΩ
R
P
2kΩ
CLP
+2V TO +3.3V
MAX4929E
MAX4929E
HIZ2
HIZ1
VL
SCLO
SDAO
GND
SEL
HPD
HPIRO
V+
HPIR1, HPDO1,
SCL1, SDA1
HPIR2, HPDO2,
SCL2, SDA2
HDMI3
HDMI4
CLP
CHIP
SELECT
EXESD
0.1μF
EXESD
0.1μF
Figure 6. Two MAX4929Es Connected to Form a 4:1 Translating Switch
I
P
100%
90%
36.8%
t
RL
TIME
t
DL
CURRENT WAVEFORM
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
r
10%
0
0
AMPERES
Figure 5. HBM Discharge Current Waveform