SA58640 PDF Datasheet


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Description

This is Low-voltage mixer FM IF system. SA58640 Low-voltage mixer FM IF system Rev. 01 1 November 2004 Objective data sheet 1. Introduction The SA58640 was designed for cordless telephone applications in which efficient and economic integrated solutions are required and yet high performance is desirable. Although the product is not targeted to meet the stringent specifications of high performance cellular equipment, it will exceed the needs for analog cordless phones. The minimal amount of external components and absence of any external adjustments makes for a very economical solution. 2. General description The SA58640 is a low-voltage monolithic FM IF system incorporating a mixer, oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic RSSI, voltage regulator and audio and RSSI opamps. The SA58640 is available in a 20-pin SSOP. 3. Features - - - - - - - - - - - - Low power consumption: 5.0 mA typical at 5 V Mixer input to >100 MH- Mixer conversion power gain o.