VENUS-L

Obsolescence Notice This product is obsolete. This information is available for your convenience only. www.DataSheet4U.com For more information on Zarlink’s obsolete products and replacement product lists, please visit http://products.zarlink.com/obsolete_products/ VENUS-L CDMA/AMPS Dual Band and RF Receiver Datasheet DS5082 ISSUE 2.2 November 2001 Features Selectable dual RF input ports for 900MHz AMPS and 1900MHz CDMA bands. Power Management Control Ordering Information VENUSL/KG/QP1S (16 lead QSOP Package, in tubes) Description VENUS-L is a dual integrated mixer circuit designed to meet the IS95 and J-STD-008 receive system specifications, operating in the 900MHz and 1900MHz bands. Venus-L built on a Zarlink advanced bipolar process with an FT of 25GHz. GND VCC CDMA IF RF 1900 CDMA IFB AMPS IF RF 900 AMPS IFB CHIP ENABLE CONTROL BAND 1900 LO 2GHZ Figure 1 - Block diagram LO 1GHZ VENUS-L Datasheet CDMA IF CDMA IFB VCC 1 16 BAND 1900 GND RF 1900 PIN 1 REF. SPOT LO 2GHZ GND RF 900 GND CHIP ENABLE GND LO 1GHZ VCC AMPS IFB 8 9 AMPS IF QSOP16 Figure 2 - Pin Connections Circuit Description The RF section of VENUS-L contains all of the circuitry necessary to downconvert the RF signal from 900 MHz or 1900 MHz to an IF of 50-250 MHz, and to correctly interface with a suitable IF SAW filter. Two RF inputs are provided, one for the 1900MHz band and one for the 900 MHz band. The required input is activated by means of the ‘BAND 1900’ pin. The input is a ...