MAX2850ITK+T Maxim Integrated Products, MAX2850ITK+T Datasheet

no-image

MAX2850ITK+T

Manufacturer Part Number
MAX2850ITK+T
Description
RF Transmitter 5GHz, 4-Ch MIMO Tran smitter WLAN 802.11a
Manufacturer
Maxim Integrated Products
Datasheet

Specifications of MAX2850ITK+T

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
19-5009; Rev 1; 3/10
The MAX2850 is a single-chip, 4-channel RF transmitter
IC designed for 5GHz wireless HDMI applications. The
IC includes all circuitry required to implement the com-
plete 4-channel MIMO RF transmitter function and crys-
tal oscillator, providing a fully integrated transmit path,
VCO, frequency synthesis, and baseband/control inter-
face. It includes a fast-settling, sigma-delta RF fractional
synthesizer with 76Hz frequency programming step
size. The IC also integrates on-chip I/Q amplitude and
phase-error calibration circuits. Dynamic on/off control
of four external PAs is implemented with programmable
precision voltages. A 4-to-1 analog mux routes external
PA power-detect voltages to the RSSI pin.
On-chip monolithic filters are included for transmitter I/Q
baseband signal reconstruction to support both 20MHz
and 40MHz RF channels. The baseband filtering and
Tx signal paths are optimized to meet stringent WHDI
requirements. The upconverter local oscillator is coher-
ent among all the transmitter channels.
The reverse-link control channel uses an on-chip 5GHz
OFDM receiver. It shares the RF synthesizer and LO gen-
eration circuit with the MIMO transmitters. The receiver
includes both an in-channel RSSI and an RF RSSI.
The MIMO transmitter chip is housed in a small, 68-pin
thin QFN leadless plastic package with exposed pad.
WiMax is a trademark of 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.
5GHz Wireless HDMI (WHDI)
5GHz FDD Backhaul and WiMax™
5GHz MIMO Transmitter Up to Four Spatial
Streams
5GHz Beam Steering Transmitter
_______________________________________________________________ Maxim Integrated Products 1
General Description
5GHz, 4-Channel MIMO Transmitter
Applications
*EP = Exposed pad.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Typical Operating Circuit appears at end of data sheet.
S
S +2.7V to +3.6V Supply Voltage
S Small, 68-Pin Thin QFN Package (10mm x 10mm)
MAX2850ITK+
5GHz 4x MIMO Downlink Transmitters, Single
Uplink IEEE 802.11a Receiver
4900MHz to 5900MHz Frequency Range
-5dBm Transmit Power (54Mbps OFDM)
Coherent LO Among Transmitters
31dB Tx Gain-Control Range with 0.5dB Step
Tx/Rx I/Q Error and LO Leakage Detection and
Programmable 20MHz/40MHz Tx I/Q Lowpass
4-to-1 Analog Mux for PA Power Detect
4-Channel PA On/Off Control
4.5dB Rx Noise Figure
70dB Rx Gain-Control Range with 2dB Step
60dB Dynamic Range Receiver RSSI
RF Wideband Receiver RSSI
Programmable 20MHz/40MHz Rx I/Q Lowpass
Sigma-Delta Fractional-N PLL with 76Hz
Monolithic Low-Noise VCO with -35dBc
4-Wire SPI™ Digital Interface
I/Q Analog Baseband Interface
Digital Tx/Rx Mode Control
On-Chip Digital Temperature Sensor Readout
Complete Baseband Interface
Digital Tx/Rx Mode Control
PART
Size, Digitally Controlled
Adjustment
Anti-Aliasing Filter
Size, Digitally Controlled
Channel Filters
Resolution
Integrated Phase Noise
Ordering Information
-25NC to +85NC
TEMP RANGE
68 Thin QFN-EP*
PIN-PACKAGE
Features

Related parts for MAX2850ITK+T

MAX2850ITK+T Summary of contents

Page 1

... MIMO Transmitter Up to Four Spatial Streams 5GHz Beam Steering Transmitter WiMax is a trademark of WiMax Forum. SPI is a trademark of Motorola, Inc. _______________________________________________________________ Maxim Integrated Products 1 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. 5GHz 4x MIMO Downlink Transmitters, Single S Uplink IEEE 802 ...

Page 2

MIMO Transmitter ABSOLUTE MAXIMUM RATINGS V Pins to GND ................................................-0.3V to +3.9V CC_ RF Inputs Maximum Current: RXRF+, RXRF- to GND ................................................................-1mA to +1mA RF Outputs: TXRF1+, TXRF1-, TXRF2+, TXRF2-, TXRF3+, TXRF3-, TXRF4+, TXRF4- to GND .....-0.3V to ...

Page 3

MIMO Transmitter DC ELECTRICAL CHARACTERISTICS (continued) (Operating conditions, unless otherwise specified DIN = low, transmitter in maximum gain, T using the Typical Operating Circuit. 100mV mode. Typical values measured 40MHz. PA control pins ...

Page 4

MIMO Transmitter AC ELECTRICAL CHARACTERISTICS—Rx MODE (continued) (Operating conditions, unless otherwise specified 5.35GHz. Reference frequency = 40MHz, ENABLE = high high, SCLK = DIN = low, with power matching at RXRF+ and RXRF- differential ...

Page 5

MIMO Transmitter AC ELECTRICAL CHARACTERISTICS—Rx MODE (continued) (Operating conditions, unless otherwise specified 5.35GHz. Reference frequency = 40MHz, ENABLE = high high, SCLK = DIN = low, with power matching at RXRF+ and RXRF- differential ...

Page 6

MIMO Transmitter AC ELECTRICAL CHARACTERISTICS—Tx MODE (continued) (Operating conditions, unless otherwise specified 5.35GHz. Reference frequency = 40MHz, ENABLE = high high, SCLK = DIN = low, with power matching at TXRF+ and TXRF- differential ...

Page 7

MIMO Transmitter AC ELECTRICAL CHARACTERISTICS—FREQUENCY SYNTHESIS (continued) (Operating conditions, unless otherwise specified: V quency = 40MHz, ENABLE = high high, SCLK = DIN = low; typical values measured at V quency = 5.35GHz.) (Note 1) PARAMETER ...

Page 8

MIMO Transmitter AC ELECTRICAL CHARACTERISTICS—TIMING (continued) (Operating conditions, unless otherwise specified: V quency = 40MHz, ENABLE = high high, SCLK = DIN = low, typical values measured +25NC.) (Note 1) A PARAMETER ...

Page 9

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 10

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 11

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 12

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 13

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 14

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 15

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 16

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 17

MIMO Transmitter (V = 2.8V 5.35GHz 40MHz high, SCLK = DIN = low 20MHz, Tx output at 50I unbalanced output REF balun +25NC, using ...

Page 18

MIMO Transmitter TOP VIEW V 52 CC_XTAL XTAL 53 XTAL_CAP 54 ENABLE 55 TXBBI2+ 56 TXBBI2- 57 TXBBQ2+ 58 TXBBQ2 CC_BB1 TXBBI1+ 61 TXBBI1- 62 TXBBQ1+ 63 TXBBQ1- 64 PA_DET1 65 TXRF1+ 66 TXRF1- 67 ...

Page 19

MIMO Transmitter PIN NAME 15 GND Ground 16 V Transmitter 3 Upconverter Supply Voltage. Bypass with a capacitor as close as possible to the pin. CC_UCX3 17 V Transmitter 4 Upconverter Supply Voltage. Bypass with a capacitor as ...

Page 20

MIMO Transmitter PIN NAME 56 TXBBI2+ Transmitter 2 Baseband I-Channel Differential Input 57 TXBBI2- 58 TXBBQ2+ Transmitter 2 Baseband Q-Channel Differential Input 59 TXBBQ2 Receiver Baseband Supply Voltage 1. Bypass with a capacitor as close as ...

Page 21

MIMO Transmitter In clockout mode, only the crystal oscillator signal is active at the CLKOUT pin. The rest of the transceiver is powered down. In standby mode, PLL, VCO, and LO generation are on modes ...

Page 22

MIMO Transmitter CS t CSO t CSS SCLK DIN (SPI WRITE) R/W DIN R/W (SPI READ) DOUT (SPI READ) Figure 1. 4-Wire SPI Serial-Interface Timing Diagram (All values in the register summary table are typical numbers. The MAX2850 ...

Page 23

MIMO Transmitter Table 2. MAX2850 Register Summary (continued) READ/WRITE AND ADDRESS REGISTER Main0_ WRITE (W)/ A4:A0 D0 READ (R) Main4 0 00100 Reserved W/R RESERVED Main5 0 00101 Default Main6 0 00110 Reserved Main7 0 00111 Reserved Main8 ...

Page 24

MIMO Transmitter Table 2. MAX2850 Register Summary (continued) READ/WRITE AND ADDRESS REGISTER Main0_ WRITE (W)/ A4:A0 D0 READ (R) Main29 0 11101 Reserved Main30 0 11110 Reserved Main31 0 11111 Reserved Local1 1 00001 Reserved Local2 1 00010 ...

Page 25

MIMO Transmitter Table 3. Main Address 0: (A4:A0 = 00000) BIT LOCATION BIT NAME (D0 = LSB) RESERVED E_TX<4:1> D8:D5 MODE<2:0> D4:D2 RFBW M/L_SEL Table 4. Main Address 1: (A4:A0 = 00001, Main Address ...

Page 26

MIMO Transmitter Table 5. Main Address 2: (A4:A0 = 00010, Main Address BIT LOCATION BIT NAME (D0 = LSB) RESERVED D9:D7 LNA_BAND<1:0> D6:D5 RESERVED D4:D0 Table 6. Main Address 3: (A4:A0 = 00011, Main ...

Page 27

MIMO Transmitter Table 8. Main Address 9: (A4:A0 = 01001, Main Address BIT LOCATION BIT NAME (D0 = LSB) TX_GAIN<5:0> D9:D4 TX_GAIN_PROG_SEL<4:1> D3:D0 Table 9. Main Address 11: (A4:A0 = 01011, Main Address 0 ...

Page 28

MIMO Transmitter Table 11. Main Address 15: (A4:A0 = 01111, Main Address BIT LOCATION BIT NAME (D0 = LSB) VAS_TRIG_EN RESERVED D8:D7 SYN_CONFIG_N<6:0> D6:D0 Table 12. Main Address 16: (A4:A0 = 10000, Main Address ...

Page 29

MIMO Transmitter Table 15. Main Address 19: (A4:A0 = 10011, Main Address (continued) BIT LOCATION BIT NAME (D0 = LSB) VAS_SPI<5:0> D5:D0 VAS_ADC<2:0> D8:D6 (Readback Only) VCO_BAND<5:0> D5:D0 (Readback Only) Table 16. Main Address ...

Page 30

MIMO Transmitter Table 18. Main Address 28: (A4:A0 = 11100, Main Address BIT LOCATION BIT NAME (D0 = LSB) RESERVED D9:D4 PA_BIAS_DLY<3:0> D3:D0 Table 19. Local Address 27: (A4:A0 = 11011, Main Address 0 ...

Page 31

MIMO Transmitter TXRF1 OUTPUT CC_UCX1 1 1nF V CC_UCX2 2 1nF PA_DET2 3 V GND CC_UCX2 4 1.2pF TXRF2 TXRF2+ OUTPUT 5 3.9nH 2.4nH TXRF2- 6 1.0nF GND 7 PA_BIAS2 8 TXRF1+/- V CC_PA_BIAS TXRF2+/- ...

Page 32

MIMO Transmitter Chip Information PROCESS: BiCMOS 32 _____________________________________________________________________________________ Package Information For the latest package outline information and land pat- terns www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. ...

Page 33

... 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 2010 Maxim Integrated Products © ...

Related keywords