SiW171X

The SiW171X-series Radio Modem is Silicon Wave's third-generation radio modem for Bluetooth™ wireless communications and is based on 0.18 m CMOS technology. This highly integrated transceiver was specifically designed to meet the rigorous RF performance required for integrating Bluetooth in both CDMA and GSM/GPRS mobile phone applications.

The SiW171X-series Radio Modem uses direct conversion (zero-IF) architecture where one mixer stage converts the desired signal to and from the baseband without an IF stage. This allows filtering with on-chip components in place of costly SAW filters and the gain stage to consume less power than when implemented in IF architectures. The SiW 171X-series Radio Modem combines the 2.4 GHz radio transceiver and Gaussian Frequency Shift Keying (GFSK) modem with digital control functions. The IC also incorporates analog and digital voltage regulators, a reference Phase Lock Loop (PLL) to accept multiple input frequencies, and a power-on-reset (POR) circuit. The all digital interface is highly configurable and allows the SiW171X-series Radio Modem to be used with Bluetooth basebands from Silicon Wave as well as other baseband OEM's.