User Manual

Overview
Chapter 2
Overview
The HM501 WHDI Video Display Unit (VDU) is designed to be at the receiver end of the WHDI downstream. The
HM501 receives wireless downstream transmission, demodulates it and regenerates the video, audio and
control content transmitted by the HM500 WHDI transmitter. The receiver works at the 5GHz unlicensed band.
Figure 1 displays a block diagram of the HM501. It has an MIMO design of five wireless input channels, and one
slow rate output wireless channel, which generates an upstream channel for data content transmissions. The
outputs from the VDU are digital uncompressed video, digital audio and control, all via the WHDI connector. The
MiniMAC uC is responsible for the control and the management.
Analog
MUX
(RSSI/
PADET)
VIDEO
MAX2828
5Ghz Rx
Audio
AMN2210
WHDI
TM
Baseband Receiver
MAX2828
5Ghz Rx
GPIOs
RESET
MAX2828
5Ghz Rx
Interrupt
Clock
SPI
20MHz
Int uC
Reset
MAX2828
5Ghz Rx
Control
Two-Wire
uC
MiniMAC
EEPROM
MAX2828
5Ghz Rx &
Uplink
PA
Clock 40M
40M
CLOCK
GEN.
Figure 1: HM501 Block Diagram
Version 1.0
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