MAX2831ETM+T Maxim Integrated Products, MAX2831ETM+T Datasheet
MAX2831ETM+T
Specifications of MAX2831ETM+T
Related parts for MAX2831ETM+T
MAX2831ETM+T Summary of contents
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... Wi-Fi, PDA, VOIP, and Cellular Handsets Wireless Speakers and Headphones General 2.4GHz ISM Radios ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. 2.4GHz to 2.5GHz 802.11g/b ♦ ...
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... RF Transceivers with Integrated PA ABSOLUTE MAXIMUM RATINGS and TXRF_ to GND ....................-0.3V to +4.5V CCTXPA CCPA CCLNA CCTXMX CCPLL CCCP CCXTAL and GND....-0.3V to +3.9V CCRXVGA CCRXFL CCRXMX B6, B7, B3, B2, SHDN, B5, CS, SCLK, DIN, B1, TUNE, B4, TXBBI_, TXBBQ_, RXHP, RXTX, RXBBI_, RXBBQ_, RSSI, BYPASS, CPOUT, LD, CLOCKOUT, XTAL, CTUNE, RXRF_ to GND ...
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... RF Transceivers with Integrated PA DC ELECTRICAL CHARACTERISTICS (continued) (MAX2831 EV kit 2.7V to 3.6V, V CC_ high, RXHP = SCLK = DIN = low, RSSI and clock output buffer are off, no signal at RF inputs, all RF inputs and outputs terminated into 50Ω, receiver baseband outputs are open. 100mV baseband inputs of transmitter in transmit mode, f mode, unless otherwise noted ...
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... RF Transceivers with Integrated PA AC ELECTRICAL CHARACTERISTICS—Rx Mode (continued) (MAX2831 EV kit 2.8V CC_ CCPA = 40MHz, SHDN = CS = high, RXTX = SCLK = DIN = low, with power matching for the differential puts at 112 mV (-19dBV), f RMS REF RF pins using the typical applications and registers set to default settings and corresponding test mode, unless otherwise noted. ...
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... RF Transceivers with Integrated PA AC ELECTRICAL CHARACTERISTICS—Rx Mode (continued) (MAX2831 EV kit 2.8V CC_ CCPA = 40MHz, SHDN = CS = high, RXTX = SCLK = DIN = low, with power matching for the differential puts at 112 mV (-19dBV), f RMS REF RF pins using the typical applications and registers set to default settings and corresponding test mode, unless otherwise noted. ...
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... RF Transceivers with Integrated PA AC ELECTRICAL CHARACTERISTICS—Tx Mode (MAX2831 EV kit 2.8V, V CC_ CCPA RXTX = CS = high, and SCLK = DIN = low, with power matching for the differential RF pins using the typical applications circuit. 100mV sine and cosine signal (or 100mV RMS band I/Q inputs of transmitter (differential DC-coupled) ...
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... RF Transceivers with Integrated PA AC ELECTRICAL CHARACTERISTICS—Tx Mode (continued) (MAX2831 EV kit 2.8V, V CC_ CCPA RXTX = CS = high, and SCLK = DIN = low, with power matching for the differential RF pins using the typical applications circuit. 100mV sine and cosine signal (or 100mV RMS band I/Q inputs of transmitter (differential DC-coupled). Registers set to recommend settings and corresponding test mode, unless otherwise noted ...
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... RF Transceivers with Integrated PA AC ELECTRICAL CHARACTERISTICS—Frequency Synthesis (MAX2831 EV kit 2.7V CC_ CCPA DIN = low, PLL loop bandwidth = 150kHz, and T PARAMETER FREQUENCY SYNTHESIZER RF Channel Center Frequency Channel Center Frequency Programming Minimum Step Size Charge-Pump Comparison Frequency Reference Frequency Range ...
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... RF Transceivers with Integrated PA AC ELECTRICAL CHARACTERISTICS—Miscellaneous Blocks (MAX2831 EV kit 2.8V, V CC_ CCPA and T = +25°C, unless otherwise noted.) (Note 1) A PARAMETER CRYSTAL OSCILLATOR M axi m um cap aci tance, A3:A0 = 1110 1111111 On-Chip Tuning Capacitance Range cap aci tance, A3:A0 = 1110 0000000 ...
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... RF Transceivers with Integrated PA AC ELECTRICAL CHARACTERISTICS—Timing (continued) (MAX2831 EV kit 2.8V, V CC_ CCPA DIN = low, PLL loop bandwidth = 150kHz, and T PARAMETER 3-WIRE SERIAL-INTERFACE TIMING (See Figure 2) SCLK Rising Edge to CS Falling Edge Wait Time, t CSO Falling Edge Rising ...
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... RF Transceivers with Integrated PA (MAX2831 EV kit 2.8V CC_ CCPA SCLK = DIN = low vs +85° +25° -40° 2.7 2.8 2.9 3.0 3.1 3.2 3.3 3.4 3.5 3 IN-BAND OUTPUT P-1dB vs. GAIN LNA MEDIUM/HIGH- GAIN SWITCH POINT -3 LNA MEDIUM/LOW- -4 GAIN SWITCH POINT - GAIN (dB) OFDM EVM WITH OFDM JAMMER vs ...
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... RF Transceivers with Integrated PA (MAX2831 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) Rx RSSI OUTPUT vs. INPUT POWER 3.0 LNA = HIGH GAIN 2.5 LNA = MEDIUM GAIN 2.0 1.5 1.0 0.5 LNA = LOW GAIN 0 -120 -100 -80 -60 -40 - (dBm I/Q DC OFFSET SETTLING RESPONSE ...
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... RF Transceivers with Integrated PA (MAX2831 EV kit 2.8V CC_ CCPA SCLK = DIN = low VGA SETTLING RESPONSE (-8 GAIN STEP) MAX2831/32 toc19 3V 0V 500mV 0V -500mV 40ns/div RF LNA SETTLING RESPONSE (HIGH TO MEDIUM) MAX2831/32 toc22 3V 0V 500mV 0V -500mV 100ns/div Rx BB FREQUENCY RESPONSE vs. COARSE SETTING (FINE SETTING = 010) ...
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... RF Transceivers with Integrated PA (MAX2831 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) HISTOGRAM: Rx GAIN IMBALANCE 138 MEAN: 0dB STD: 0.064dB 115 SAMPLE SIZE: 951 1σ/div HISTOGRAM LEAKAGE 48 MEAN: -33.45dBc STD: 6.31dB 40 SAMPLE SIZE: 999 1σ/div Tx BASEBAND FREQUENCY RESPONSE ...
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... RF Transceivers with Integrated PA (MAX2831 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) EVM vs. Tx OUTPUT POWER (MAX2832 ONLY) 3.00 2.75 2.50 2.25 2.00 1.75 1.50 1.25 1.00 -30 -24 -18 -12 -6 OUTPUT POWER (dBm) Tx EVM vs. P OUT 4.2V CCPA 3.3V CCPA 3.0V CCPA 2.7V ...
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... RF Transceivers with Integrated PA (MAX2831 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) POWER DETECTOR OVER FREQUENCY 2.0 1 2.4GHz RF 1.6 1.4 1 2.5GHz RF 1.0 0.8 0.6 0.4 0 OUTPUT POWER (dBm) POWER-DETECTOR OUTPUT PA ENVELOPE 20dB GAIN STEP 300mV -300mV 1V POWER DETECTOR 0V 100ns/div PA OUTPUT RETURN LOSS vs ...
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... RF Transceivers with Integrated PA (MAX2831 EV kit 2.8V CC_ CCPA SCLK = DIN = low.) LO FREQUENCY vs. V TUNE 2600 2550 2500 2450 2400 2350 2300 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 V (V) TUNE PLL SETTLING TIME FROM SHUTDOWN TO STANDBY MODE ...
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... RF Transceivers with Integrated PA V CCLNA 1 GNDRXLNA RXRF+ 4 RXRF GAIN 6 CONTROL V CCPA 7 B3 RX/TX GAIN 8 CONTROL TXRF+ 9 TXRF RX/TX GAIN 11 CONTROL SHDN MODE CONTROL 12 18 ______________________________________________________________________________________ Block Diagrams/Typical Operating Circuits TX INPUT MAX2831 RSSI 90° IMUX QMUX 0° AM DETECTOR ÷ ...
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... RF Transceivers with Integrated PA Block Diagrams/Typical Operating Circuits (continued CCLNA 1 MAX2832 GNDRXLNA RXRF+ 4 RXRF GAIN 6 CONTROL IMUX QMUX V CCPA RX/TX GAIN 8 DETECTOR CONTROL TXRF+ 9 TXRF RX/TX GAIN 11 TEMP CONTROL SENSOR RSSI SHDN MUX RSSI 12 MODE CONTROL ______________________________________________________________________________________ TX INPUT RX I OUTPUTS ...
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... RF Transceivers with Integrated PA PIN NAME 1 V LNA Supply Voltage CCLNA 2 GNDRXLNA LNA Ground 3 B6 Receiver and Transmitter Gain-Control Logic-Input Bit 6 4 RXRF+ LNA Differential Input. Input is internally AC-coupled and matched to 100Ω differential. Connect directly to a 2:1 balun. ...
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... RF Transceivers with Integrated PA 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 I-Channel Differential Outputs calibration mode, these pins are the LO leakage and sideband detector outputs. 38 RXBBI+ ...
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... RF Transceivers with Integrated PA Baseband Variable-Gain Amplifier The receiver baseband variable-gain amplifiers provide 62dB of gain control range programmable in 2dB steps. The VGA gain can be serially programmed through the SPI interface by setting bits D4:D0 in Register 11 (A3:A0 = 1011) or programmed in parallel through the digital logic gain-control pins, B5 (pin 14), B4 (pin 34), B3 (pin 8), B2 (pin 11), and B1 (pin 23) ...
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... RF Transceivers with Integrated PA Receiver I/Q Baseband Outputs The differential outputs (RXBBI+, RXBBI-, RXBBQ+, RXBBQ-) of the baseband amplifiers have a differential output impedance of ~300Ω, and are capable of dri- ving differential loads up to 10kΩ || 10pF. The outputs are internally biased to a common-mode voltage of 1 ...
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... RF Transceivers with Integrated PA Transmitter Variable-Gain Amplifier The variable-gain amplifier of the transmitter provides 31dB of gain control range programmable in 0.5dB steps over the top 8dB of the gain control range and in 1dB steps below that. The transmitter gain can be pro- grammed serially through the SPI interface by setting ...
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... RF Transceivers with Integrated PA Calculating Integer and Fractional Divider Ratios The desired integer and fractional divider ratios can be calculated by dividing the RF frequency (f For nominal 802.11g/b operation, a 40MHz reference oscillator is divided generate a 20MHz compari- son frequency (f ). The following method can be COMP used when calculating divider ratios supporting various reference and comparison frequencies: Table 11 ...
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... RF Transceivers with Integrated PA The crystal oscillator has been optimized to work with low-cost crystals (e.g., Kyocera CX-3225SB). See Figure 1. The crystal oscillator frequency can be fine tuned through bits D6:D0 in Register 14 (A3:A0 = 1110), which control the value of C from 0.5pF to 15.4pF in TUNE 0 ...
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... RF Transceivers with Integrated PA Programmable Registers and 3-Wire SPI-Interface The MAX2831/MAX2832 include 16 programmable, 18- bit registers. The 14 most significant bits (MSBs) are used for register data. The 4 least significant bits (LSBs) of each register contain the register address. See Table 14 for a summary of the registers and rec- ommended register settings ...
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... RF Transceivers with Integrated PA Table 15. Register 0 (A3:A0 = 0000) DATA BITS RECOMMENDED D13:D11 000 Set to recommended value. Fractional-N PLL Mode Enable. Set 1 to enable the fractional-N PLL or set 0 to enable the D10 1 integer-N PLL. D9:D0 1101000000 Set to recommended value. Table 16. Register 1 (A3:A0 = 0001) ...
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... RF Transceivers with Integrated PA Table 21. 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: 9dB; D12:D11 00 01 19dB; 10: 29dB; 11: 39dB. D10:D7 0000 Set to recommended value. Power-Detector Enable in Tx Mode. Set enable the power detector or set ...
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... RF Transceivers with Integrated PA Table 24. Register 9 (A3:A0 = 1001) BIT RECOMMENDED D13:D11 000 Set to recommended value. Enable Transmitter Gain Programming Through the Serial or Parallel Interface. Set D10 0 enable programming through the 3-wire serial interface (D5:D0 in Register A3:A0 = 1011). Set enable programming in parallel through external digital pins (B6:B1). ...
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... RF Transceivers with Integrated PA Table 29. 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 set 0 to divide Refer ence C l ock Outp ut E nab enab l e the r efer ence cl ock outp ut or set sab l e. ...
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... RF Transceivers with Integrated PA Modes of Operation The modes of operation for the MAX2831/MAX2832 are shutdown, standby, transmit, receive, transmitter calibra- tion, and receiver calibration. See Table 31 for a summa the modes of operation. The logic-input pins, SHDN (pin 12) and RXTX (pin 48), control the various modes. ...
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... RF Transceivers with Integrated PA POWER SUPPLY ON POWER I REF SHDN SHUTDOWN RXTX CS CS (SELECT) SCLK SCLK (CLOCK) DIN DIN (DATA) INTERNAL PA ENABLED Figure 3. Timing Diagram Pin Configuration TOP VIEW CCLNA GNDRXLNA RXRF+ 4 RXRF MAX2831 MAX2832 V 7 CCPA B3 8 TXRF+ 9 TXRF SHDN TQFN ______________________________________________________________________________________ 2 ...
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... 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. 34 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2011 Maxim Integrated Products ...