HDMI Repeater
Matrix
Repeater
Splitter
Switcher
DP/eDP
LVDS Bridge
MHL/HDMI Bridge
Transmitter
MIPI
MHL/HDMI Bridge
SRE
SRE
LVDS/cLVDS
Bridge
c LVDS
Receiver
Transmitter
Combo
Bridge
MHL
Bridge
Receiver
Transmitter
HDMI Receiver/Transmitter
Receiver
Transmitter
DVI & HDCP
Bridge
OSD
Transceiver
Controller/MCU
CEC
MCU
HDMI HEC / ARC
ARC
HEC
IDP
Receiver
Transmitter
 
 
 
 
EP9431F
Overview
 
EP9431F is a 4-port HDMI 1.3 switcher with integrated EDID and eFlash MCU.
The 4-port HDMI 1.3 switcher supports 4 HDMI input ports and one HDMI output port. Each HDMI input is equipped with Input Equalizer to support long cable. The chip uses Re-Timed architecture which re-samples data at the receiver side and re-drive data at the transmitter side. The architecture will not pass through jitter noise from inputs to output and hence provides reliable transmission. The chip supports TMDS clock from 25 Mhz to 225 Mhz(12-bit color 1080p). The chip also supports DDC switches with active bi-directional buffer that is 5V tolerant. Hot-Plug and 5V-Input switches are also supported. These switches are 5V input tolerant with 3.3V output.
The chip supports 4 ports of on-chip EDID memory. Each port EDID memory is 256 bytes. Non-Volatile EDID memory can be implemented. EDID memory is accessible by DDC bus even when the system is powered down.
The on-chip eFlash MCU is an 8051 based Micro Controller with 64KB embedded Flash, 256+2KB RAM, Timers, Watchdog Timer, UART, IIC Slave, 10-bit ADC, and Remote Decoder. The MCU is powerful enough to implement CEC, Remote Decoding, Key-Pad Decoding and GPIO. Application reference C code is available.
Feature

• Compliant with HDMI 1.3a/1.3b specification
• Support 4 HDMI input ports and 1 HDMI output port
• On-chip Equalizer which allows data transmission on long cables
• Re-timed architecture which will not pass through jitter noise from inputs to output
• Supports 12-bit Deep Color 1080p
• Support DDC switches and active buffer(5V tolerant)
• Supports Hot Plug switches and buffers(5V input tolerant﹐3.3V output)
• Supports 5V-Input switches and buffers(5V input tolerant﹐3.3V output)
• TMDS clock range:25MHz–225MHz
• Single 3.3V power
• Low power down current(20uA)
• 128-pin LQFP package(Pb-Free)

 
  .微驅科技股份有限公司EXPLORE MICROELECTRONICS INC.
新竹市科學工業園區園區二路47號105室 RM 105, No. 47, Park Ave 2, Hsinchu Science Park, Hsin-Chu, Taiwan, R.O.C. TEL:886-3-564-3595 FAX:886-3-564-3596
  .益士伯電子股份有限公司Explore Semiconductor, Inc.
台北縣汐止市新台五路一段79號10F之13 10F.-13, No. 79, Sec. 1, Shintai 5th Rd., Shijr City, Taipei, Taiwan, R.O.C. TEL:886-2-26989727