Philips SA624
The SA624 is pin-to-pin compatible with the SA604A, but has faster RSSI rise and fall time. The SA624 is an improved monolithic low-power FM IF system incorporating two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator, and voltage regulator. The SA624 features higher IF bandwidth (25MHz) and temperature compensated RSSI and limiters permitting higher performance application compared with the SA604.| Part No. | SA624 |
|---|---|
| Datasheet | SA624 Download |
| Manufacturer |  Philips |
| Description | High performance low power FM IF system with high-speed RSSI |
| Buy | Stock & Price |
DESCRIPTION
The SA624 is available in 16-lead SO (surface-mounted miniature) package. PIN CONFIGURATION D Package IF AMP DECOUPLING 1 GND 2 MUTE INPUT 3 VCC 4 16 IF AMP INPUT 15 IF AMP DECOUPLING 14 IF AMP OUTPUT 13 GND 12 LIMITER INPUT 11 LIMITER DECOUPLING 10 LIMITER DECOUPLING 9 LIMITER RSSI OUTPUT 5 MUTE AUDIO OUTPUT 6FEATURES
UNMUTE AUDIO OUTPUT 7 QUADRATURE INPUT 8● Low power consumption: 3.4mA typical
● Temperature compensated logarithmic Received Signal Strength Indicator (RSSI) with a dynamic range in excess of 90dB SR00440
● Fast RSSI rise and fall time
● Two audio outputs - muted and unmuted
● Low external component count; suitable for crystal/ceramic filters
● Excellent sensitivity: 1.5µV across input pins (0.22µV into 50Ω matching network) for 12dB SINAD (Signal to Noise and Distortion ratio) at 455kHz Figure 1. Pin Configuration
APPLICATIONS
● SA624 meets cellular radio specifications● Digital cellular base station
● Cellular radio FM IF
● High performance communicatio...
