SA639 system equivalent, low voltage mixer fm if system.
* VCC = 2.7 V to 5.5 V
* Low power consumption: 8.6 mA (typical) at 3 V
* Wideband data output (1 MHz minimum)
* Fast RSSI rise and fall times
* Mixer.
and functions down to 2.7 V. The RF section is similar to the famous NE605. The data output provides a minimum bandwidth.
The SA639 is a low-voltage high performance monolithic FM IF system with high-speed RSSI incorporating a mixer/oscillator, two wideband limiting intermediate frequency amplifiers, quadrature detector, logarithmic Received Signal Strength Indicator (R.
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