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ADRF6701,pdf datasheet (750 MH

消耗积分:3 | 格式:rar | 大小:554 | 2009-10-26

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The ADRF6701 is an IQ modulator with integrated PLL and VCO. The PLL/Synthesizer uses a Fractional-N PLL to generate a 2*FLO input to the I-Q modulator. The PLL reference input is supported from 12MHz to 160MHz. The phase detector output controls a charge pump whose output is integrated in an off-chip loop-filter. The loop filter output is then applied to an integrated VCO. The VCO output at 2*FLO is then applied to a quadrature divider as well as to a programmable divider. The programmable divider is controlled by a sigma-delta modulator (SDM). The I-Q modulator has analog I + Q inputs which can be at baseband or optionally at a complex IF up to 200 MHz
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