Philips SA608
The SA608 is a low voltage high performance monolithic FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, logarithmic received signal strength indicator (RSSI), voltage regulator and audio and RSSI op amps. The SA608 is available in 20-lead dual-in-line plastic, 20-lead SOL (surface-mounted miniature package) and 20-lead SSOP package. The SA608 was designed for portable communication applications and will function down to 2.7V.| Part No. | SA608 |
|---|---|
| Datasheet | SA608 Download |
| Manufacturer |  Philips |
| Description | Low voltage high performance mixer FM IF system |
| Buy | Stock & Price |
DESCRIPTION
The RF section is similar to the famous NE605. The audio output is buffered. The RSSI output has an internal amplifier with the feedback pin accessible. The SA608 also has an extra limiter output. This signal is buffered from the output of the limiter and can be used to perform frequency check. This is accomplished by comparing a reference frequency with the frequency check signal using a comparator to a varactor or PLL at the oscillator inputs.● Low external component count; suitable for crystal/ceramic/LC filters PIN CONFIGURATION D, DK and N Packages
● Excellent sensitivity: 0.31µV into 50Ω matching network for 12dB SINAD (Signal to Noise and Distortion ratio) for 1kHz tone, 8kHz deviation with RF at 45MHz and IF at 455kHz RF IN+ 1 20 MIXER OUT 19 IF AMP DECOUPLING 18 IF AMP IN 17 IF AMP DECOUPLING 16 IF AMP OUT 15 GND 14 LIMITER IN 13 LIMITER DECOUPLING 12 LIMITER DECOUPLING 11 LIMITER OUT (+) RF IN– 2 DECOUPLING OSC3 4 5 6 7
● SA608 meets cellular radio specifications...
