EVALUATION KIT AVAILABLE MAX2851 5GHz, 5-Channel MIMO Receiver General Description Features The MAX2851 is a single-chip, 5-channel RF receiver IC 5GHz, 5x MIMO Downlink Receivers, Single-Uplink designed for 5GHz wireless HDMI applications. The IEEE 802.11a Transmitter IC includes all circuitry required to implement the com- 4900MHz to 5900MHz Frequency Range plete 5-channel MIMO RF receiver function and crystal Coherent LO Among Receivers oscillator, providing a fully integrated receive path, VCO, 4.5dB Rx Noise Figure frequency synthesis, and baseband/control interface. It includes a fast-settling sigma-delta RF fractional synthe- 70dB Rx Gain Control Range with 2dB Step Size, sizer with 76Hz frequency programming step size. The Digitally Controlled IC also integrates on-chip I/Q amplitude and phase-error 60dB Dynamic Range Receiver RSSI calibration circuits. The receiver includes both an in- RF Wideband Receiver RSSI channel RSSI and also an RF RSSI. Programmable 20MHz/40MHz Rx I/Q Lowpass On-chip monolithic filters are included for receiver I/Q Channel Filters baseband signal channel selection, for supporting both 20MHz and 40MHz RF channels. The baseband filtering -5dBm Transmit Power (54Mbps OFDM) and Rx signal paths are optimized to meet stringent WHDI 31dB Tx Gain Control Range with 0.5dB Step Size, requirements. The downconverter local oscillator is coher- Digitally Controlled ent among all the receiver channels. Tx/Rx I/Q Error and LO Leakage Detection and The reverse-link control channel uses an on-chip 5GHz Adjustment OFDM transmitter. It shares the RF synthesizer and LO Programmable 20MHz/40MHz Tx I/Q Lowpass generation circuit with the MIMO receivers. Dynamic Anti-Aliasing Filter on/off control of the external PA is implemented with programmable precision voltage. An analog mux routes Analog Mux for PA Power Detect external PA power-detect voltage to the RSSI pin. PA On/Off Control The MIMO receiver chip is housed in a small 68-pin TQFN Sigma-Delta Fractional-N PLL with 76Hz Resolution leadless plastic package with exposed paddle. Monolithic Low-Noise VCO with -35dBc Integrated Phase Noise Applications 4-Wire SPI Digital Interface 5GHz Wireless HDMI (WHDI) 5GHz FDD Backhaul and WiMAX I/Q Analog Baseband Interface 5GHz MIMO Receiver Up to Five Spatial Streams Digital Tx/Rx Mode Control 5GHz Beam Steering Receiver On-Chip Digital Temperature Sensor Readout Complete Baseband Interface Digital Tx/Rx Mode Control +2.7V to +3.6V Supply Voltage Small 68-Pin TQFN Package (10mm x 10mm) Ordering Information PART TEMP RANGE PIN-PACKAGE HDMI is a trademark of HDMI Licensing, LLC. MAX2851ITK+ -25C to +85C 68 TQFN-EP* WHDI is a trademark of WHDI Special Interest Group. +Denotes a lead(Pb)-free/RoHS-compliant package. WiMAX is a trademark of the WiMAX Forum. *EP = Exposed paddle. Typical Operating Circuit appears at end of data sheet. 19-5121 Rev 1 3/10MAX2851 5GHz, 5-Channel MIMO Receiver Absolute Maximum Ratings V Pins to GND ...............................................-0.3V to +3.9V Digital Inputs: ENABLE, CS, SCLK, CC RF Inputs Max Current: RXRF1+, RXRF1-, RXRF2+, DIN to GND ......................................................-0.3V to +3.9V RXRF2-, RXRF3+, RXRF3-, RXRF4+, RXRF4-, Digital Outputs: DOUT, CLKOUT to GND ............-0.3V to +3.9V RXRF5+, RXRF5- to GND................................ -1mA to +1mA Short-Circuit Duration RF Outputs: TXRF+, TXRF- to GND ....................-0.3V to +3.9V Analog Outputs .................................................................. 10s Analog Inputs: TXBBI+, TXBBI-, TXBBQ+, TXBBQ-, PA DET, Digital Outputs ................................................................... 10s XTAL, XTAL CAP to GND ................................-0.3V to +3.9V RF Input Power ..............................................................+10dBm Analog Outputs: RXBBI1+, RXBBI1-, RXBBQ1+, RXBBQ1-, RF Output Differential Load VSWR ........................................6:1 RXBBI2+, RXBBI2-, RXBBQ2+, RXBBQ2-, RXBBI3+, Continuous Power Dissipation (T = +85C) A RXBBI3-, RXBBQ3+, RXBBQ3-, RXBBI4+, RXBBI4-, 68-Pin TQFN (derate 29.4mW/C above +70C) ......2352mW RXBBQ4+, RXBBQ4-, RXBBI5+, RXBBI5-, RXBBQ5+, Operating Temperature Range ........................... -25C to +85C RXBBQ5-, RSSI, CLKOUT2, BYP VCO, CPOUT+, CPOUT-, Junction Temperature ......................................................+150C PA BIAS to GND ..............................................-0.3V to +3.9V Storage Temperature Range ............................ -65C to +160C Lead Temperature (soldering, 10s) .................................+300C Soldering Temperature (reflow) .......................................+260C Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. CAUTION ESD SENSITIVE DEVICE DC Electrical Characteristics (Operating conditions unless otherwise specified: V = 2.7V to 3.6V, T = -25C to +85C, ENABLE set according to operating mode, CC A CS = high, SCLK = DIN = low, transmitter in maximum gain. Power matching and termination for the differential RF output pins using the Typical Operating Circuit 100mV differential I and Q signals applied to I and Q baseband inputs of transmitters in transmit RMS mode. Typical values measured at V = 2.85V, T = +25C, LO freq = 5.35GHz. Channel bandwidth is set to 40MHz. PA control pins CC A open circuit, V is disconnected.) (Note 1) CC PA BIAS PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 2.7 3.6 V Shutdown mode T = +25C 10 A A XTAL oscillator, CLKOUT2 is off 3.7 Clockout only mode XTAL oscillator, CLKOUT2 is on 4.6 with load = 10pF at TCXO input, CLKOUT2 is off 4.8 7.0 CLKOUT pin TCXO input, CLKOUT2 is on 6.1 Standby mode 60 Supply Current Transmit mode 183 212 mA One receiver is on 144 184 Receive mode Five receivers are on 367 458 One receiver is on 248 Receive calibration mode Five receivers are on 435 517 Transmit calibration mode 256 Rx I/Q Output Common-Mode 0.88 1.1 1.34 V Voltage Tx Baseband Input Common- 0.5 1.1 V Mode Voltage Operating Range Tx Baseband Input Bias Current Source current 10 20 A Maxim Integrated 2 www.maximintegrated.com