China option for 3G cellular phone is the TD-SCDMA system. A detailed
handset transceiver diagram is presented showing MAX2361 as the
transmit IC, the MAX2291 as the power amplifier (PA), and the MAX2388
and MAX2309 form the receiver. A VCO buffer amplifier is used to provide
isolation and maintains a clean LO signal.
IP卡
狗仔卡
发表于 2006-3-10 13:21:00
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