AMIMON AMN11310 WHDI, Техническое описание

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Overview
Version 0.4
AMIMON Confidential 5
2.3 AMN3110 WHDI
TM
5GHz Transceiver
The VSU uses the AMN3110 chip. The AMN3110 is a fully integrated direct conversion MIMO transmitter
specifically designed for WHDI applications using OFDM modulation in single-band 4.9GHz to 5.9GHz. The
device includes:
• Four Complete Downlink Direct Conversion Transmitters
•
One Uplink Receiver
•
Integrated Synthesizer
•
Internal DC Servo Loops
• RSSI
•
IQ Detector
•
RF and Baseband Control Interface
•
Power Management Unit
•
3-Wire SPI Interface
To complete RF front-end solution, the AMN3110 uses external PA, RF switches, RF Band Pass Filters (BPF),
RF BALUNs and a few passive components.
2.4 Power Amplifier (PA)
In order to extend the operating range for the AMN11310, the RF transmitter uses power amplifiers. Each power
amplifier has an output power detector for TPC purposes.
AMN11310 uses Sharp IRM053U7 PAs.
2.5 Board Connector (WHDI
TM
Connector)
For information regarding the connector specification and pin-outs, see section Signals , page 17.
2.6 Clocks
2.6.1 40MHz Crystal Oscillator
An on-board 40MHz Oscillator is connected to the AMN3110 chip.
2.6.2 40Mhz Digital Clock
AMN3110 drives the 40MHz clock to the baseband AMN2110 through a buffer (with output enable).
This clock is named DIG_CLK. The control to the output buffer is named Clk40M_OE.
2.6.3 10Mhz Micro Controller Clock
The DIG_CLK (40MHz) clock is divided by four by the AMN2110 and generates 10MHz that drives the STM32F
UC.