AN611 Datasheet (Maxim Integrated Products) - TD-SCDMA Radio Chipset Block Diagram for Handset Application

AN611, TD-SCDMA Radio Chipset Block Diagram for Handset Application

WIRELESS, RF, AND CABLE Jun 01, 2001 TD-SCDMA Radio Chipset Block Diagram for Handset Application 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.

Overview TD-SCDMA is the third-generation (3G) cellular phone standard currentl

AN611 Features

* q q q q Output power of +8dBm with excellent ACPR A 100dB power-control range Dual integer-N synthesizers for IF and RF An image-reject upconverting mixer, which saves one SAW filter q q q Power-supply current dropping as the RF output power is reduced Low-noise power during the power-down mode