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| Print this page | Download the PDF File | Close Window | FLASH NEWS #1-2003 |
| CHIPIDEA Dual Mode GSM/UMTS Baseband AFE Proven in Silicon |
 Main Test Results
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Designed in 0.18µm
mixed-mode CMOS, the CI3GBB includes all the signal conversion
and filtering functions necessary for DSP/Radio interface
in UMTS and GSM applications. The core area excluding pads is 11.2 mm2. The GSM and UMTS Rx modes draw, respectively, less than 6 mA and 11 mA from the supplies, whereas in power down the whole chip draws less than 1mA current from the supplies. The Rx channels include offset calibration, anti-aliasing filtering, A/D conversion and digital filtering. The inputs can accept a wide range of common-mode levels to easily interface to the RF front-end. Both UMTS and GSM modes are available. The Tx channels include digital filtering, D/A conversion, anti-imaging filtering and offset calibration. The output can drive directly RF modulators with no need for external components. Auxiliary converters are included for multiple monitoring and control functions, such as automatic frequency control and power control. All necessary bias and reference signals are generated internally with the need of few external de-coupling capacitors.   |