MAX2839ETN+T Maxim Integrated Products, MAX2839ETN+T Datasheet

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MAX2839ETN+T

Manufacturer Part Number
MAX2839ETN+T
Description
RF Transceiver 2.3Ghz To 2.7Ghz MIM O Wireless Broadband
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX2839ETN.pdf (26 pages)

Specifications of MAX2839ETN+T

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX2839 direct conversion, zero-IF, RF transceiver
is designed specifically for 2GHz 802.16e MIMO mobile
WiMAX systems. The device incorporates one transmit-
ter and two receivers, with >40dB isolation between
each receiver. The MAX2839 completely integrates all
circuitry required to implement the RF transceiver func-
tion, providing RF to baseband receive path, and base-
band to RF transmit path, VCO, frequency synthesizer,
crystal oscillator, and baseband/control interface. The
device includes a fast-settling sigma-delta RF synthe-
sizer with smaller than 40Hz frequency steps and a
crystal oscillator that allows the use of a low-cost crystal
in place of a TCXO. The transceiver IC also integrates
circuits for on-chip DC-offset cancellation, I/Q error,
and carrier leakage detection circuits. An internal trans-
mit to receive loopback mode allows for receiver I/Q
imbalance calibration. The local oscillator I/Q quadra-
ture phase error can be digitally corrected in approxi-
mately 0.125° steps. Only an RF bandpass filter (BPF),
crystal, RF switch, PA, and a small number of passive
components are needed to form a complete wireless
broadband RF radio solution.
The MAX2839 completely eliminates the need for an
external SAW filter by implementing on-chip program-
mable monolithic filters for both the receiver and trans-
mitter, for all 2GHz and 802.16e profiles and WIBRO.
The baseband filters along with the Rx and Tx signal
paths are optimized to meet the stringent noise figure
and linearity specifications. The device supports up to
2048 FFT OFDM and implements programmable chan-
nel filters for 3.5MHz to 20MHz RF channel bandwidths.
The transceiver requires only 2µs Tx-Rx switching time.
The IC is available in a small 56-pin TQFN package
measuring 8mm x 8mm x 0.8mm.
19-3218; Rev 1; 3/08
WiMAX is a trademark of the WiMAX Forum.
SPI is a trademark of Motorola, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
802.16e Mobile WiMAX™ Systems
Korean WIBRO Systems
Proprietary Wireless Broadband Systems
802.11g or n WLAN with MRC or MIMO Down Link
2.3GHz to 2.7GHz MIMO Wireless Broadband
________________________________________________________________ Maxim Integrated Products
General Description
Applications
♦ 2.3GHz to 2.7GHz Wideband Operation
♦ Dual Receivers for MIMO, Single Transmitter
♦ Complete RF Transceiver, PA Driver, and Crystal
♦ +2.7V to +3.6V Transceiver Supply
♦ Low-Power Shutdown Current
♦ Small, 56-Pin TQFN Package (8mm x 8mm x
Pin Configuration and Block Diagram/Typical Operating
Circuit appear at end of data sheet.
+ Denotes a lead-free package.
T = Tape and reel.
* EP = Exposed paddle.
D = Dry pack.
MAX2839ETN+TD -40°C to +85°C 56 TQFN-EP*
Oscillator
0.8mm)
2.3dB Rx Noise Figure on Each Receiver
-35dB Rx EVM for 64QAM Signal
0dBm Linear OFDM Transmit Power (64QAM)
-70dBr Tx Spectral Emission Mask
-35dBc LO Leakage
Automatic Rx DC Offset Correction
Monolithic Low-Noise VCO with -39dBc
Programmable Rx I/Q Lowpass Channel Filters
Programmable Tx I/Q Lowpass Anti-Aliasing
Sigma-Delta Fractional-N PLL with < 40Hz Step
62dB Tx Gain Control Range with 1dB Step
95dB Rx Gain Control Range with 1dB Step
60dB Analog RSSI Instantaneous Dynamic
4-Wire SPI™ Digital Interface
I/Q Analog Baseband Interface
Digital Tx/Rx Mode Control
Digitally Tuned Crystal Oscillator
On-Chip Digital Temperature Sensor Readout
PART
Integrated Phase Noise
Filters
Size, Digitally Controlled
Size, Digitally Controlled
Range
TEMP RANGE
RF Transceiver
Ordering Information
PIN-
PACKAGE
Features
T5688+2
CODE
PKG
1

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MAX2839ETN+T Summary of contents

Page 1

... Transceiver Supply ♦ Low-Power Shutdown Current ♦ Small, 56-Pin TQFN Package (8mm x 8mm x 0.8mm) Applications PART MAX2839ETN+TD -40°C to +85°C 56 TQFN-EP* + Denotes a lead-free package Tape and reel Exposed paddle Dry pack. Pin Configuration and Block Diagram/Typical Operating Circuit appear at end of data sheet. ...

Page 2

MIMO Wireless Broadband RF Transceiver ABSOLUTE MAXIMUM RATINGS V Pins to GND..................................................-0.3V to +3.6V CC_ RF Inputs: RXINA+, RXINA-, RXINB+, RXINB- to GND .............................................AC-Coupled Only RF Outputs: TXOUT+, TXOUT- to GND.................-0.3V to +3.6V Analog Inputs: TXBBI+, TXBBI-, ...

Page 3

MIMO Wireless Broadband DC ELECTRICAL CHARACTERISTICS TABLE (continued) (MAX2839 Evaluation Kit 2.7V to 3.6V mode, ENABLE = CS = high, SCLK = DIN = low, no input signal at RF inputs, all ...

Page 4

MIMO Wireless Broadband RF Transceiver AC ELECTRICAL CHARACTERISTICS TABLE—Rx MODE (continued) (MAX2839 Evaluation Kit 2.8V, T CC_ = 40MHz, ENABLE = RXTX = CS = high, SCLK = DIN = low, with power matching for ...

Page 5

MIMO Wireless Broadband AC ELECTRICAL CHARACTERISTICS TABLE—Rx MODE (continued) (MAX2839 Evaluation Kit 2.8V, T CC_ = 40MHz, ENABLE = RXTX = CS = high, SCLK = DIN = low, with power matching for the differential ...

Page 6

MIMO Wireless Broadband RF Transceiver AC ELECTRICAL CHARACTERISTICS TABLE—Tx MODE (MAX2839 Evaluation Kit 2.8V, T CC_ SCLK = DIN = low, with power matching for the differential RF pins using the typical applications and registers ...

Page 7

MIMO Wireless Broadband AC ELECTRICAL CHARACTERISTICS TABLE—FREQUENCY SYNTHESIS (MAX2839 Evaluation Kit 2.8V, T CC_ bandwidth = 120kHz. VCO and RF synthesis enabled, unless otherwise noted.) (Note 1) PARAMETER RF Channel Center Frequency Range Channel Center ...

Page 8

MIMO Wireless Broadband RF Transceiver AC ELECTRICAL CHARACTERISTICS TABLE—MISCELLANEOUS BLOCKS (MAX2839 Evaluation Kit 2.8V REF PARAMETER PA BIAS DAC: VOLTAGE MODE Output High level 10mA source current Output Low level 100μA sink current ...

Page 9

MIMO Wireless Broadband AC ELECTRICAL CHARACTERISTICS TABLE—TIMING (continued) (MAX2839 Evaluation Kit 2.8V, f CC_ 120kHz, and T = +25°C, unless otherwise noted.) (Note 1) A PARAMETER SYMBOL LOAD Falling Edge Setup Time LOAD Falling Edge ...

Page 10

MIMO Wireless Broadband RF Transceiver (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit.) SINGLE RX SUPPLY CURRENT vs. SUPPLY VOLTAGE ...

Page 11

MIMO Wireless Broadband (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit.) RX EVM vs. P (CHANNEL BANDWIDTH = 10MHz, 64 QAM FUSC) 22 ...

Page 12

MIMO Wireless Broadband RF Transceiver (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit INPUT DIFFERENTIAL IMPEDANCE vs. FREQUENCY 35.40 35.10 IMAGINARY ...

Page 13

MIMO Wireless Broadband (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit.) RX LPF GROUP DELAY vs. FREQUENCY 350 CHANNEL BW = 5MHz 300 ...

Page 14

MIMO Wireless Broadband RF Transceiver (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit.) RX LNA SETTLING RESPONSE (MAX TO MAX - 8dB) MAX2839 ...

Page 15

MIMO Wireless Broadband (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit.) TX SUPPLY CURRENT vs. SUPPLY VOLTAGE 150 146 T = +85°C A ...

Page 16

MIMO Wireless Broadband RF Transceiver (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit.) TX SIDEBAND LEVEL vs. FREQUENCY -30 TX GAIN SET TO ...

Page 17

MIMO Wireless Broadband (V = 2.8V +25° 2.5GHz unbalanced output of balun, using the MAX2839 Evalutation Kit.) VCO GAIN vs. DIFFERENTIAL TUNE VOLTAGE -1.5 ...

Page 18

MIMO Wireless Broadband RF Transceiver PIN NAME 1 GNDRXLNA_A Receiver A LNA Ground 2 VCCRXLNA_A Receiver A LNA Supply Voltage. Bypass with a 22pF capacitor as close as possible to the pin Receiver Gain-Control Logic ...

Page 19

MIMO Wireless Broadband PIN NAME 39 RSSI Receiver Signal Strength Output 40 B7 Receiver Gain-Control Logic Input Bit Receiver and Transmitter Gain-Control Logic Input Bit 6 Receiver Baseband AC-Coupling Highpass Corner Frequency Control Logic ...

Page 20

MIMO Wireless Broadband RF Transceiver Table 1. Operating Mode MODE CONTROL LOGIC INPUTS ENABLE RXTX MODE PIN PIN Shutdown 0 0 Clock-Out Only 1 X Clock-Out Only X 1 Standby (1x2 MIMO ...

Page 21

MIMO Wireless Broadband Receiver (Rx) Calibration or Loopback Part of Rx and Tx circuit blocks except LNA and PA dri- ver are powered on and active. The transmitter I/Q input signals are upconverted to RF, and the ...

Page 22

MIMO Wireless Broadband RF Transceiver Rx A INPUT GNDRXLNA_A VCCRXLNA_A Rx GAIN CONTROL Rx GAIN SELECT VCCRXLNA_B GNDRXLNA_B Rx B INPUT Rx/Tx GAIN CONTROL Rx/Tx GAIN CONTROL VCCTXPAD Tx OUTPUT Rx/Tx GAIN CONTROL 22 ______________________________________________________________________________________ Block Diagram/Typical ...

Page 23

MIMO Wireless Broadband GNDRXLNA_A 1 VCCRXLNA_A LOAD 4 VCCRXLNA_B 5 GNDRXLNA_B 6 RXINB+ 7 RXINB VCCTXPAD TXOUT+ 13 TXOUT- 14 *EP ...

Page 24

MIMO Wireless Broadband RF Transceiver (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) 24 ______________________________________________________________________________________ Package Information PACKAGE OUTLINE 56L THIN QFN, ...

Page 25

MIMO Wireless Broadband (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information go to www.maxim-ic.com/packages.) ______________________________________________________________________________________ RF Transceiver Package Information (continued) PACKAGE OUTLINE 56L THIN QFN, ...

Page 26

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 26 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products DESCRIPTION is a registered trademark of Maxim Integrated Products, Inc ...

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