ACD2203

ACD2203 CATV/TV/Video Downconverter with Dual Synthesizer PRELIMINARY DATA SHEET - Rev 1.3 FEATURES Integrated Downconverter Integrated Dual Synthesizer 256 QAM Compatibility Single +5 V Power Supply Operation Low Power Consumption: <0.6 W Low Noise Figure: 8 dB High Conversion Gain: 10 dB Low Distortion: -53 dBc Two-Wire Interface Small Size -40 °C to +85 °C APPLICATIONS Set Top Boxes CATV Video Tuners Digital TV Tuners CATV Data Tuners Cable Modems S8 Package 28 Pin SSOP PRODUCT DESCRIPTION The ACD2203 uses both GaAs and Si technology to provide the downconverter and dual synthesizer functions in a double conversion tuner gain block, local oscillator, balanced mixer and dual synthesizer. The specifications meet the requirements of CATV/TV/Video and Cable Modem Data applications. The ACD2203 is supplied in a 28 lead SSOP package and requires a single +5 V supply voltage. The IC is well suited for applications where small size, low cost, low auxiliary parts count and a nocompromise performance is important. It provides for cost reduction by lowering the component and packaged IC count and decreasing the amount of labor-intensive production alignment steps, while significantly improving performance and reliability. RFD RF2: 64/65 Prescaler 18 Bit RF2 N Counter RF2 Phase Detector RF2 Charge Pump CPD RFIN+ RFINLow Noise VGA VIF+IFOUT+ REFIN REFOUT Oscillator 15 Bit RF2 R Counter VIF+IFOUTMixer RF1: 64/65 Prescaler 15 Bit RF1 R Count...