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Description

The SA626 is a low-voltage high performance monolithic FM IF system with high-speed RSSI incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic Received Signal Strength Indicator (RSSI), voltage regulator, wideband data output and fast RSSI op amps.

The SA626 is available in 20-lead SSOP (Shrink Small Outline Package) and HVQFN20 (quad flat package).

Features : 

1. Wideband data output (600 kHz minimum)

2. Fast RSSI rise and fall times

3. Low power consumption: 6.5 mA typical at 3 V

4. Mixer input to >500 MHz

5. Mixer conversion power gain of 11 dB at 240 MHz

6. Mixer noise figure of 12 dB at 240 MHz

 
Block Diagram

Applications

• Digital cordless telephones

• Digital cellular telephones

• Digital cellular base stations

• Portable high performance communications receivers

• Single conversion VHF/UHF receivers

• SCA receivers

• RF level meter

• Spectrum analyzer

• Instrumentation

• FSK and ASK data receivers

• Log amps

• Wideband low current amplification