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MAX2832ETMT Datasheet(PDF) 4 Page - Maxim Integrated Products |
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MAX2832ETMT Datasheet(HTML) 4 Page - Maxim Integrated Products |
4 / 34 page 2.4GHz to 2.5GHz 802.11g/b RF Transceivers with Integrated PA 4 _______________________________________________________________________________________ AC ELECTRICAL CHARACTERISTICS—Rx Mode (continued) (MAX2831 EV kit: VCC_ = 2.8V, VCCPA = VCCTXPA = 3.3V, TA =+25°C, fRF = 2.439GHz, fLO = 2.437GHz; receiver baseband I/Q out- puts at 112 mVRMS (-19dBV), fREF = 40MHz, SHDN = CS = high, RXTX = SCLK = DIN = low, with power matching for the differential RF pins using the typical applications and registers set to default settings and corresponding test mode, unless otherwise noted. Unmodulated single-tone RF input signal is used with specifications which normally apply over the entire operating conditions, unless otherwise indicated. RF inputs/outputs specifications are referenced to device pins and do not include 1dB loss from EV kit PCB, balun, and SMA connectors.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS Baseband Gain Range From maximum baseband gain (B5:B1 = 11111) to minimum baseband gain (B5:B1 = 00000) 55 62 67 dB Voltage gain = maximum with B7:B6 = 11 2.6 Voltage gain = 50dB with B7:B6 = 11 3.2 Voltage gain = 45dB with B7:B6 = 10 16 DSB Noise Figure Voltage gain = 15dB with B7:B6 = 0X 34 dB B7:B6 = 11 -41 B7:B6 = 10 -24 In-Band Compression Point Based on EVM -19dBVRMS baseband output EVM degrades to 9% B7:B6 = 0X -6 dBm In-Band Output P-1dB Voltage gain = 90dB, with B7:B6 = 11 2.5 VP-P B7:B6 = 11 -12 B7:B6 = 10 -4 Out-of-Band Input IP3 (Note 4) B7:B6 = 0X 24 dBm I/Q Phase Error 1 σ variation (without calibration) ±0.35 Degrees I/Q Gain Imbalance 1 σ variation (without calibration) ±0.1 dB Minimum differential resistance 10 k Ω RX I/Q Output Load Impedance (R || C) Maximum differential capacitance 10 pF Tx-to-Rx Conversion Gain for Rx I/Q Calibration For receiver gain, B7:B1 = 1101111 (Note 5) 0.5 dB Baseband VGA Settling Time Gain change from B5:B1 = 10111 to B5:B1 = 00111; gain settling to within ±2dB of steady state 0.1 µs I/Q Output DC Step when RXHP Transitions from 1 to 0 in Presence of 802.11g Short Sequence After switching RXHP to logic 0 from initial logic 1, during ideal short sequence data at -55dBm input in AWGN channel, for -19dBV output; normalized to RMS signal on I and Q outputs; transition point varied from 0 to 0.8µs in steps of 0.1µs -5 dBc I/Q Output DC Droop After switching RXHP to 0, D13:D12, Register 7 (A3:A0 = 0111) ±1 V/s I/Q Static DC Offset RXHP = 1, B7:B1 = 1101110, 1 σ variation ±1 mV Spurious Signal Emissions from LNA input RF = 1GHz to 26.5GHz -51 dBm RECEIVER BASEBAND FILTERS Gain Ripple in Passband 10kHz to 8.5MHz at baseband ±1.3 DBP-P Group-Delay Ripple in Passband 10kHz to 8.5MHz at baseband ±45 nsP-P |
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