MAX2830ETM+ Maxim Integrated Products, MAX2830ETM+ Datasheet

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MAX2830ETM+

Manufacturer Part Number
MAX2830ETM+
Description
RF Transceiver 2.4GHz to 2.5GHz 802 .11g-b RF Transceive
Manufacturer
Maxim Integrated Products
Datasheet
1.MAX2830ETM.pdf (33 pages)

Specifications of MAX2830ETM+

Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX2830 direct conversion, zero-IF, RF transceiver
is designed specifically for 2.4GHz to 2.5GHz 802.11g/b
WLAN applications. The MAX2830 completely integrates
all circuitry required to implement the RF transceiver
function, providing an RF power amplifier (PA), an Rx/Tx
and antenna diversity switch, RF-to-baseband receive
path, baseband-to-RF transmit path, voltage-controlled
oscillator (VCO), frequency synthesizer, crystal oscillator,
and baseband/control interface. The MAX2830 includes
a fast-settling sigma-delta RF synthesizer with smaller
than 20Hz frequency steps and a digitally tuned crystal
oscillator allowing use of a low-cost crystal. No I/Q cali-
bration is required; however, the device also integrates
on-chip DC-offset cancellation and I/Q errors and carrier
leakage-detection circuits for improved performance.
Only an RF bandpass filter (BPF), crystal, a pair of
baluns, and a small number of passive components are
needed to form a complete 802.11g/b WLAN RF front-
end solution.
The MAX2830 completely eliminates the need for an
external SAW filter by implementing on-chip monolithic fil-
ters for both the receiver and transmitter. The baseband
filters are optimized to meet the IEEE 802.11g standard
and proprietary turbo modes up to 40MHz channel band-
width. These devices are suitable for the full range of
802.11g OFDM data rates (6Mbps to 54Mbps) and
802.11b QPSK and CCK data rates (1Mbps to 11Mbps).
The ICs are available in a small, 48-pin TQFN package
measuring only 7mm x 7mm x 0.8mm.
19-0774; Rev 2; 3/11
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.
2.4GHz to 2.5GHz 802.11g/b RF Transceiver, PA,
MAX2830
MAX2831
MAX2832
PART
Wi-Fi, PDA, VOIP, and Cellular Handsets
Wireless Speakers and Headphones
General 2.4GHz ISM Radios
INTEGRATED PA
________________________________________________________________ Maxim Integrated Products
Yes
Yes
No
General Description
and Rx/Tx/Antenna Diversity Switch
Selector Guide
INTEGRATED SWITCH
Applications
Yes
No
No
o 2.4GHz to 2.5GHz ISM Band Operation
o IEEE 802.11g/b Compatible (54Mbps OFDM and
o Complete RF Transceiver, PA, Rx/Tx and Antenna
o Transceiver Operates from +2.7V to +3.6V
o PA Operates from +2.7V to +4.2V
o Low-Power Shutdown Mode
o Small 48-Pin TQFN Package
* EP = Exposed paddle.
+ Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape and reel.
Pin Configuration appears at end of data sheet.
MAX2830ETM+T
11Mbps CCK)
Diversity Switch, and Crystal Oscillator
(7mm x 7mm x 0.8mm)
Best-in-Class Transceiver Performance
62mA Receiver Current
3.3dB Rx Noise Figure
-75dBm Rx Sensitivity (54Mbps OFDM)
No I/Q Calibration Required
0.1dB/0.35° Rx I/Q Gain/Phase Imbalance
33dB RF and 62dB Baseband Gain Control
60dB Range Analog RSSI per RF Gain Setting
Fast Rx I/Q DC-Offset Settling
Programmable Baseband Lowpass Filter
20-Bit Sigma-Delta Fractional-N PLL with
Digitally Tuned Crystal Oscillator
+17.1dBm Transmit Power (5.6% EVM with
31dB Tx Gain Control Range
Integrated Power Detector
Fully Integrated RF Input and Output
Serial or Parallel Gain-Control Interface
> 40dB Tx Sideband Suppression Without
Rx/Tx I/Q Error Detection
Range
< 20Hz Step Size
54Mbps OFDM)
Calibration
PART
Matching and DC Blocking
-40°C to +85°C
TEMP RANGE
Ordering Information
PIN-PACKAGE
48 TQFN-EP*
Features
1

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MAX2830ETM+ Summary of contents

Page 1

... Rx/Tx I/Q Error Detection o Transceiver Operates from +2.7V to +3. Operates from +2.7V to +4.2V o Low-Power Shutdown Mode o Small 48-Pin TQFN Package (7mm x 7mm x 0.8mm) PART Yes MAX2830ETM Exposed paddle. + Denotes a lead(Pb)-free/RoHS-compliant package Tape and reel. Pin Configuration appears at end of data sheet. Features ...

Page 2

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch ABSOLUTE MAXIMUM RATINGS and ANT_ _ to GND ..................-0.3V to +4.5V CCTXPA CCPA CCLNA CCTXMX CCPLL ...

Page 3

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch DC ELECTRICAL CHARACTERISTICS (continued) (MAX2830 EV kit 2.7V to 3.6V, V CC_ high, RXHP = SCLK = DIN = ANTSEL = low, RSSI and clock output buffer ...

Page 4

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch AC ELECTRICAL CHARACTERISTICS—Rx Mode (continued) (MAX2830 EV kit 2.8V CC_ CCPA = 40MHz, SHDN = CS = high, RXTX = SCLK = DIN = ...

Page 5

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch AC ELECTRICAL CHARACTERISTICS—Rx Mode (continued) (MAX2830 EV kit 2.8V, V CC_ CCPA = 40MHz, SHDN = CS = high, RXTX = SCLK = DIN = low, with ...

Page 6

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch AC ELECTRICAL CHARACTERISTICS—Tx Mode (MAX2830 EV kit 2.8V CC_ CCPA RXTX = CS = ANTSEL = high, and SCLK = DIN = low, with ...

Page 7

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch AC ELECTRICAL CHARACTERISTICS—Tx Mode (continued) (MAX2830 EV kit 2.8V, V CC_ CCPA RXTX = CS = ANTSEL = high, and SCLK = DIN = low, with power ...

Page 8

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch AC ELECTRICAL CHARACTERISTICS—Frequency Synthesizer (MAX2830 EV kit 2.7V CC_ CCPA DIN = low, PLL loop bandwidth = 150kHz, and T PARAMETER FREQUENCY SYNTHESIZER RF ...

Page 9

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch AC ELECTRICAL CHARACTERISTICS—Miscellaneous Blocks (MAX2830 EV kit 2.8V, V CC_ CCPA and T = +25°C, unless otherwise noted.) (Note 1) A PARAMETER CRYSTAL OSCILLATOR M axi m ...

Page 10

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch AC ELECTRICAL CHARACTERISTICS—Timing (continued) (MAX2830 EV kit 2.8V CC_ CCPA DIN = low, PLL loop bandwidth = 150kHz, and T PARAMETER 3-WIRE SERIAL-INTERFACE TIMING ...

Page 11

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch (MAX2830 EV kit 2.8V, V CC_ CCPA SCLK = DIN = low vs +85° ...

Page 12

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch (MAX2830 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) LNA INPUT RETURN LOSS vs. RF FREQUENCY (ANT 2) -5 LOW GAIN -10 ...

Page 13

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch (MAX2830 EV kit 2.8V, V CC_ CCPA SCLK = DIN = low VGA SETTLING RESPONSE (+8 GAIN STEP) MAX2830 toc18 3V 0V 500mV 0V -500mV ...

Page 14

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch (MAX2830 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) HISTOGRAM: Rx STATIC DC OFFSET 78 MEAN: 0mV STD: 0.977mV 65 SAMPLE SIZE: ...

Page 15

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch (MAX2830 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) Tx GAIN VARIATION vs. FREQUENCY (B6:B1 = 101001 -40° ...

Page 16

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch (MAX2830 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) PA OUTPUT RETURN LOSS vs. RF FREQUENCY -10 -12 -14 -16 -18 -20 ...

Page 17

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch (MAX2830 EV kit 2.8V, V CC_ CCPA SCLK = DIN = low.) Rx-TO-Tx TURNAROUND PLL SETTLING TIME 25kHz 5kHz/ div -25kHz 0 CLOCK OUTPUT f = 40MHz ...

Page 18

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch V CCLNA 1 GNDRXLNA ANT1+ 4 ANT1 GAIN 6 CONTROL V CCPA 7 B3 RX/TX GAIN 8 CONTROL ANT2+ 9 ANT2 ...

Page 19

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch PIN NAME 1 V LNA Supply Voltage CCLNA 2 GN DRX LNA LNA Ground 3 B6 Receiver and Transmitter Gain-Control Logic-Input Bit 6 4 ANT1+ Antenna 1. Differential Input ...

Page 20

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch PIN NAME 35 RXBBQ- Receiver Baseband Q-Channel Differential Outputs calibration mode, these pins are the LO leakage and sideband detector outputs. 36 RXBBQ+ 37 RXBBI- Receiver Baseband ...

Page 21

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch an antenna diversity path between the ANT2 port (pins 9 and 10) and the receiver. When RXTX = 1, the PA and transmit path are automatically connected to the ...

Page 22

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch corner frequency. In addition, coarse frequency tuning allows the -3dB corner frequency to be set to 7.5MHz (11b mode), 8.5MHz (11g mode), 15MHz (turbo 1 mode), and 18MHz (turbo ...

Page 23

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch The transmitter integrates baseband lowpass filters, direct-upconversion mixers, a VGA driver, and a lin- ear RF PA with a power detector. A logic-high on the RXTX input ...

Page 24

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch Power-Amplifier Bias and Enable Delay The MAX2830 integrates a 2-stage PA, providing +17.1dBm of output power at 5.6% error vector magni- tude (EVM) (54Mbps OFDM signal) in 802.11g mode ...

Page 25

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch Table 14. IEEE 802.11g/b Divider-Ratio Programming Words COMP (MHz) 2412 120.6 2417 120.85 2422 121.1 2427 121.35 2432 121.6 2437 121.85 2442 ...

Page 26

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch D12 in Register 1 (A3:A0 = 0001) configures the lock- detect output as a CMOS or open-drain output. In open- drain output mode, bit D9 in Register 5 (A3:A0 ...

Page 27

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch Table 16. Register 0 (A3:A0 = 0000) DATA BITS RECOMMENDED D13:D11 000 D10 1 D9:D0 1101000000 Table 17. Register 1 (A3:A0 = 0001) DATA BITS RECOMMENDED D13 0 D12 ...

Page 28

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch Table 22. Register 6 (A3:A0 = 0110) DATA BIT RECOMMENDED D13 0 Set to recommended value. Tx I/Q Calibration LO Leakage and Sideband Detector Gain-Control Bits. D12:D11 = 00: ...

Page 29

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch Table 25. Register 9 (A3:A0 = 1001) BIT RECOMMENDED D13:D11 000 D10 0 D9:D0 1110110101 Table 26. Register 10 (A3:A0 = 1010) BIT RECOMMENDED D13:D10 0111 D9:D7 011 D6:D3 ...

Page 30

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch Table 30. Register 14 (A3:A0 = 1110) BIT RECOMMENDED D13:D11 000 Set to recommended value. D10 0 Reference Clock Output Divider Ratio. Set 1 to divide ...

Page 31

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch are on, so that modes can be quickly enabled from this mode. Set SHDN to a logic-low and RXTX to a logic-high to place the device ...

Page 32

RF Transceiver, PA, and Rx/Tx/Antenna Diversity Switch POWER SUPPLY ON POWER I REF SHDN SHUTDOWN RXTX CS (SELECT) CS SCLK SCLK (CLOCK) DIN DIN (DATA) INTERNAL PA ENABLED Figure 4. Timing Diagram Pin Configuration TOP VIEW ...

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 ____________________ 33 © 2011 Maxim Integrated Products DESCRIPTION Maxim is a registered trademark of Maxim Integrated Products, Inc ...

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