MAX2172ETL Datasheet, PDF (1/38 Pages) Maxim Integrated Products – 5GHz, 5-Channel MIMO Receiver

19-5121; Rev 1; 3/10
EVAALVUAAILTAIOBNLEKIT
5GHz, 5-Channel MIMO Receiver
General Description
The MAX2851 is a single-chip, 5-channel RF receiver IC
designed for 5GHz wireless HDMI™ applications. The
IC includes all circuitry required to implement the com-
plete 5-channel MIMO RF receiver function and crystal
oscillator, providing a fully integrated receive path, VCO,
frequency synthesis, and baseband/control interface. It
includes a fast-settling sigma-delta RF fractional synthe-
sizer with 76Hz frequency programming step size. The
IC also integrates on-chip I/Q amplitude and phase-error
calibration circuits. The receiver includes both an in-
channel RSSI and also an RF RSSI.
On-chip monolithic filters are included for receiver I/Q
baseband signal channel selection, for supporting both
20MHz and 40MHz RF channels. The baseband filter-
ing and Rx signal paths are optimized to meet stringent
WHDI requirements. The downconverter local oscillator
is coherent among all the receiver channels.
The reverse-link control channel uses an on-chip 5GHz
OFDM transmitter. It shares the RF synthesizer and LO
generation circuit with the MIMO receivers. Dynamic
on/off control of the external PA is implemented with
programmable precision voltage. An analog mux routes
external PA power-detect voltage to the RSSI pin.
The MIMO receiver chip is housed in a small 68-pin
TQFN leadless plastic package with exposed paddle.
Applications
5GHz Wireless HDMI (WHDI™)
5GHz FDD Backhaul and WiMAX™
5GHz MIMO Receiver Up to Five Spatial Streams
5GHz Beam Steering Receiver
HDMI is a trademark of HDMI Licensing, LLC.
WHDI is a trademark of WHDI Special Interest Group.
WiMAX is a trademark of the WiMAX Forum.
SPI is a trademark of Motorola, Inc.
Features
S 5GHz, 5x MIMO Downlink Receivers, Single-Uplink
IEEE 802.11a Transmitter
S 4900MHz to 5900MHz Frequency Range
S Coherent LO Among Receivers
S 4.5dB Rx Noise Figure
S 70dB Rx Gain Control Range with 2dB Step Size,
Digitally Controlled
S 60dB Dynamic Range Receiver RSSI
S RF Wideband Receiver RSSI
S Programmable 20MHz/40MHz Rx I/Q Lowpass
Channel Filters
S -5dBm Transmit Power (54Mbps OFDM)
S 31dB Tx Gain Control Range with 0.5dB Step Size,
Digitally Controlled
S Tx/Rx I/Q Error and LO Leakage Detection and
Adjustment
S Programmable 20MHz/40MHz Tx I/Q Lowpass
Anti-Aliasing Filter
S Analog Mux for PA Power Detect
S PA On/Off Control
S Sigma-Delta Fractional-N PLL with 76Hz
Resolution
S Monolithic Low-Noise VCO with -35dBc Integrated
Phase Noise
S 4-Wire SPIK Digital Interface
S I/Q Analog Baseband Interface
S Digital Tx/Rx Mode Control
S On-Chip Digital Temperature Sensor Readout
S Complete Baseband Interface
S Digital Tx/Rx Mode Control
S +2.7V to +3.6V Supply Voltage
S Small 68-Pin TQFN Package (10mm x 10mm)
Ordering Information
PART
MAX2851ITK+
TEMP RANGE
-25NC to +85NC
PIN-PACKAGE
68 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
Typical Operating Circuit appears at end of data sheet.
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