Draw block diagram of frequency synthesizer unit of mobile handset and state its function in cellular handset.

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teamques10 ★ 70k

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advanced communication system

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written 6.9 years ago by

teamques10 ★ 70k

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 The synthesizer is used for developing all the signals used by the transmitter and receiver.

 It uses the PLL circuits and a mixer.

 The crystal oscillator provides a reference for the two PLLs.

 The output of VCO-2 is used as a local oscillator frequency for the …

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