Philips SA625
The SA625 is pin-to-pin compatible with the SA605, but has faster RSSI rise and fall times. The SA625 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, and voltage regulator. The SA625 combines the functions of Signetics’ SA602A and SA624.| Part No. | SA625 |
|---|---|
| Datasheet | SA625 Download |
| Manufacturer |  Philips |
| Description | High performance low power mixer FM IF system with high-speed RSSI |
| Buy | Stock & Price |
DESCRIPTION
The SA625 is available in 20-lead SSOP (shrink small outline package). For additional technical information please refer to application notes AN1994, 1995 and 1996, which include example application diagrams, a complete overview of the product and artwork for reference. PIN CONFIGURATION DK Package 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 OUTFEATURES
MUTED AUDIO OUT 8 UNMUTED AUDIO OUT 9 QUADRATURE IN 10● 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) SR00456
● ESD hardened Figure 1. Pin Configuration
APPLICATIONS
● 102dB of IF Amp/Limiter gain● 25MHz limiter...
