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MAX2839ETN+TD Datasheet(PDF) 3 Page - Maxim Integrated Products |
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MAX2839ETN+TD Datasheet(HTML) 3 Page - Maxim Integrated Products |
3 / 26 page 2.3GHz to 2.7GHz MIMO Wireless Broadband RF Transceiver _______________________________________________________________________________________ 3 PARAMETER CONDITIONS MIN TYP MAX UNITS Digital Input Current Low, IIL -1 +1 µA LOGIC OUTPUTS: DOUT, CLKOUT Digital Output Voltage High, VOH Sourcing 100µA VCC - 0.4 V Digital Output Voltage Low, VOL Sinking 100µA 0.4 V DC ELECTRICAL CHARACTERISTICS TABLE (continued) (MAX2839 Evaluation Kit, VCC_ = 2.7V to 3.6V, TA = -40°C to +85°C, Rx set to the maximum gain. RXTX set according to operating mode, ENABLE = CS = high, SCLK = DIN = low, no input signal at RF inputs, all RF inputs and outputs terminated into 50Ω. 90mVRMS differential I and Q signals (1MHz) applied to I, Q baseband inputs of transmitter in transmit mode, all registers set to rec- ommended settings and corresponding test mode, unless otherwise noted. Typical values are at VCC_ = 2.8V, fLO = 2.5GHz and TA = +25°C, unless otherwise noted.) (Note 1) PARAMETER CONDITIONS MIN TYP MAX UNITS RF INPUT TO I, Q BASEBAND-LOADED OUTPUT RF Input Frequency Range 2.3 2.7 GHz Peak-to-Peak Gain Variation over RF Input Frequency Range Tested at band edges and band center 0.8 dB RF Input Return Loss All LNA settings 12 dB Maximum gain, B7:B0 = 0000000 90 99 Total Voltage Gain TA = -40°C to +85°C Minimum gain, B7:B0 = 1111111 5 13 dB From max RF gain to max RF gain - 8dB 8 From max RF gain to max RF gain - 16dB 16 RF Gain Steps From max RF gain to max RF gain - 32dB 32 dB Any RF or baseband gain change; gain settling to within ±1dB of steady state; RXHP = 1 200 Gain Change Settling Time Any RF or baseband gain change; gain settling to within ±0.1dB of steady state; RXHP = 1 2000 ns Baseband Gain Range From maximum baseband gain (B5:B0 = 000000) to minimum gain (B5:B0 = 111111), TA = -40°C to +85°C 58 63 66 dB Baseband Gain Minimum Step Size 1dB Voltage gain = 65dB with max RF gain (B7:B6 = 00) 2.3 Voltage gain = 50dB with max RF gain - 8dB (B7:B6 = 01) 5.5 Voltage gain = 45dB with max RF gain - 16dB (B7:B6 = 10) 13 DSB Noise Figure Voltage gain = 15dB with max RF gain - 32dB (B7:B6 = 11) 27 dB AC ELECTRICAL CHARACTERISTICS TABLE—Rx MODE (MAX2839 Evaluation Kit, VCC_ = 2.8V, TA = +25°C, fRF = 2.4999GHz, fLO = 2.5GHz; baseband output signal frequency = 100kHz, fREF = 40MHz, ENABLE = RXTX = CS = high, SCLK = DIN = low, with power matching for the differential RF pins using the typical applications circuit and registers set to default settings and corresponding test mode, unless otherwise noted. Lowpass filter is set to 10MHz RF channel BW. Unmodulated single tone RF input signal is used with specifications which normally apply over the entire operating conditions, unless otherwise indicated.) (Note 1) |
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