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MAX2828ETN Datasheet(PDF) 6 Page - Maxim Integrated Products |
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MAX2828ETN Datasheet(HTML) 6 Page - Maxim Integrated Products |
6 / 39 page Single-/Dual-Band 802.11a/b/g World-Band Transceiver ICs 6 _______________________________________________________________________________________ AC ELECTRICAL CHARACTERISTICS—802.11a Rx Mode (MAX2828/MAX2829) (MAX2828/MAX2829 evaluation kits: VCC = +2.7V, fIN = 5.25GHz; receiver baseband I/Q outputs at 112mVRMS (-19dBV), fREFOSC = 40MHz, SHDN = RXENA = CS = high, RXHP = TXENA = SCLK = DIN = low, RBIAS = 11k Ω, registers set to default settings and cor- responding test mode, TA = +25°C, unless otherwise noted. Unmodulated single-tone RF input signal is used, unless otherwise indi- cated.) (Tables 1, 2, 3) PARAMETER CONDITIONS MIN TYP MAX UNITS RECEIVER SECTION: LNA RF INPUT TO BASEBAND I/Q OUTPUTS 802.11a low-band mode 4.900 5.350 RF Input Frequency Range 802.11a high-band mode 5.470 5.875 GHz LNA high-gain mode (B7:B6 = 11) -15 LNA medium-gain mode (B7:B6 = 10) -11 RF Input Return Loss With 50 Ω external match LNA low-gain mode (B7:B6 = 0X) -7 dB TA = +25 °C91 97 Maximum gain, B7:B1 = 1111111 TA = -40 °C to +85°C (Note 1) 88 Total Voltage Gain Minimum gain, B7:B1 = 0000000 TA = +25 °C0 3 dB From high-gain mode (B7:B6 = 11) to medium-gain mode (B7:B6 = 10) (Note 3) -19 RF Gain Steps From high-gain mode (B7:B6 = 11) to low-gain mode (B7:B6 = 0X) (Note 3) -34.5 dB fRF = 4.9GHz -0.3 fRF = 5.35GHz 0.4 Gain Variation Relative to 5.25GHz fRF = 5.875GHz -4 dB Baseband Gain Range From maximum baseband gain (B5:B1 = 11111) to minimum baseband gain (B5:B1 = 00000) 62 dB Voltage gain ≥ 65dB, with B7:B6 = 11 4.5 Voltage gain = 50dB, with B7:B6 = 11 4.8 Voltage gain = 45dB, with B7:B6 = 10 15 DSB Noise Figure Voltage gain = 15dB, with B7:B6 = 0X 36 dB Output P-1dB Voltage gain = 90dB, with B7:B6 = 11 3.2 VP-P Voltage gain = 60dB, with B7:B6 = 11 -15 Voltage gain = 45dB, with B7:B6 = 10 0.5 Out-of-Band Input IP3 -35dBm jammers at 40MHz and 78MHz offset; based on IM3 at 2MHz Voltage gain = 40dB, with B7:B6 = 0X 20 dBm Voltage gain = 35dB, with B7:B6 = 11 -32 Voltage gain = 20dB, with B7:B6 = 10 -12 In-Band Input P-1dB Voltage gain = 5dB, with B7:B6 = 0X 3 dBm |
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