Philips SA627
The SA627 has faster RSSI rise and fall times. The SA627 is a high performance monolithic low-power FM IF system incorporating a mixer/oscillator, two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator (RSSI) with fast rise and fall time, voltage regulator and frequency check/limiter out (–). The SA627 also has an extra limiter output.| Part No. | SA627 |
|---|---|
| Datasheet | SA627 Download |
| Manufacturer |  Philips |
| Description | High performance low power FM IF system with high-speed RSSI |
| Buy | Stock & Price |
DESCRIPTION
The SA627 has faster RSSI rise and fall times. The SA627 also has an extra limiter output. This signal is buffered from the output of the limiter and provides a negative (–) limiter output. This can be used to provide a frequency check function. The SA627 is available in 20-lead SOL (surface-mounted miniature package) and 20-lead SSOP (shrink small outline package). PIN CONFIGURATION D and DK Packages RFIN 1 20 MIXER OUT 19 IF AMP DECOUPLING 18 IF AMP IN 17 IF AMP DECOUPLING RF BYPASS 2 XTAL OSC XTAL OSC MUTEIN VCC RSSIOUT 3 4 5 6 7 16 IF AMP OUT 15 GND 14 LIMITER IN 13 12 11 LIMITER DECOUPLING LIMITER DECOUPLING LIMITER OUT (+)FEATURES
● Fast RSSI rise and fall times● Low power consumption: 5.8mA typical at 6V
● Mixer input to >500MHz
● Mixer conversion power gain of 13dB at 45MHz
● Mixer noise figure of 4.6dB at 45MHz
● XTAL oscillator effective to 150MHz (L.C. oscillator to 1GHz local oscillator can be injected) MUTED AUDIO OUT 8 QUADRATURE IN 9 FREQ CHECK/ LIM OUT (–) 10 SR00481 Figure 1.
