Maxim Integrated AN611
The following block diagram shows a typical application. It is the ideal transmitter for TD-SCDMA because of these 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 Availability in a 48-pin QFN package (7mm x 7mm) Power Amplifier The MAX229X is a linear amplifier optimized for TD-SCDMA application.| Part No. | AN611 |
|---|---|
| Datasheet | AN611 Download |
| Manufacturer |  Maxim Integrated |
| Description | TD-SCDMA Radio Chipset Block Diagram for Handset Application |
| Buy | Stock & Price |
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 currently under development in China. In November 1999, the TD-SCDMA standard was adopted by the ITU as one of the options in the 3GPP mobile communication standard. TD-SCDMA combines time-division duplex (TDD) and CDMA with up-link (reverse-link) synchronization, a software radio, and a smart antenna, to increase channel capacity and improve bandwidth efficiency. In the radio section of the handset, the TD-SCDMA radio section requires fast switching time, high dynamic range, and high linearity in both the transmitter and receiver sections.
