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SA9024 数据表(PDF) 7 Page - NXP Semiconductors |
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SA9024 数据表(HTML) 7 Page - NXP Semiconductors |
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7 / 23 page  Philips Semiconductors Objective specification SA9024 900 MHz transmit modulator and 1.3 GHz fractional–N synthesizer 1997 Aug 01 7 Current output variation versus VPH VPHS in compliance range –25 25 % VPH Charge pump voltage compliance 0.5 VCC–0.5 V AC ELECTRICAL CHARACTERISTICS VCC = +3.75 V; TA = 25°C; unless otherwise stated. SYMBOL PARAMETER TEST CONDITIONS LIMITS UNITS SYMBOL PARAMETER TEST CONDITIONS MIN TYP MAX UNITS Modulator TX O/ Transmit LO input (AC-coupled; 50 Ω Input power -13 -10 dBm TXLO 1/2 ( single-ended, 100 Ω differential) Frequency range 900 1100 MHz VSWR 2:1 TANK1/2 VCO tank differential inputs Frequency range 90 180 MHz ÷M PLL offset divider Maximum input frequency 180 MHz XTAL1 Osc. transistor base Osc. frequency 10 40 MHz XTAL2 Osc. transistor emitter Osc. frequency 10 40 MHz XO Negative resistance –100 W RCLK, MCLK Reference buffer output Frequency range Output levels Harmonic content ZLOAD = 5kΩ| | 7 pF 10 0.7 1.0 40 1.4 –10 MHz VP–P dBc TXEN Transmit enable Transmit enable Transmit disable TXEN = 1 TXEN = 0 Logic Q / Q I / I Baseband in-phase differential inputs Maximum frequency Diff. mod. level Diff. input impedance DC bias point 1.8 0.8 10.0 1.8 0.9 VCC/2 1.0 2.55 MHz VP-P k Ω V TXRF TXRF operating range 820 920 MHz DUALTX DUAL output SE=1, TXEN=1 (with external matching) (50 Ω) AMPS/DAMPS 820 853 MHz DUALTX Differential output, (DUALTX) open-collector, matched to 200 Ω differential impedance Output level (avg. min., I and Q quad., 0dB VGA) Gain flatness +6.0 +10 1 +13.5 dBm dB DUALTX Linearity worst case intermod. products (0dB VGA OR +6 dBm, whichever is less, I & Q in-phase) 3rd-order 5th-order 7th-order -42 -55 -65 -30 -45 -53 dBc DUALTX Carrier suppression (I & Q in quadrature) VGA = 0dB VGA = -38dB -45 -33 -30 dBc DUALTX Sideband suppression (I & Q in quadrature) -45 -32 dBc 2 to 284 MHz -45 824 to 849 MHz -47 dBc DUALTX Spurious output 849 to 869 MHz -45 869 to 894 MHz -104 dBm 894 to 8490 MHz -45 dBc TXLO -21 DUALTX TXLO up-conversion products Upper Side Band –21 dBc DUALTX TXLO u -conversion roducts TXLO ±3 × TXOFFSET -36 dBc Harmonics ≤ 10th -21 DUALTX Broad-band noise (0dB VGA or +6 dBm, whichever is less) 869 to 894 MHz -123 dBm/Hz DUAL Adjacent channel noise power @30kHz 95 dBc/Hz DUALTX Adjacent channel noise power @ 30 kHz -95 dBc/Hz DUALTX Alternate channel noise power @ 60 kHz –101 dBc/Hz |
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