SA58641
Description
The SA58641 is a 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 SA58641 is available in 20-lead SSOP (Shrink Small Outline Package).
Key Features
- Wideband data output (600 kHz minimum)
- Fast RSSI rise and fall times
- Low power consumption: 7.5 mA typical at 5 V
- Mixer input to >500 MHz
- Mixer noise figure of 12 dB at 240 MHz
- Crystal oscillator effective to 150 MHz (LC oscillator to 1 GHz local oscillator can be injected)
- 92 dB of IF amp/limiter gain
- 25 MHz limiter small signal bandwidth
- Temperature compensated logarithmic RSSI with a dynamic range in excess of 90 dB
- RSSI output internal op amp
