SA614A | NXP Semiconductors

Overview

The SA614A is an improved monolithic low-power FM IF system. It incorporates two limiting intermediate frequency amplifiers, quadrature detector, muting, logarithmic received signal strength indicator, and voltage regulator. The SA614A features higher IF bandwidth (25 MHz) and temperature compensated RSSI and limiters permitting higher performance application compared with the SA604. The SA614A is available in a SO (surface‑mounted miniature) package.

Features

Low power consumption: 3.3 mA typical
Temperature compensated logarithmic RSSI with a 90 dB dynamic range
Two audio outputs - muted and unmuted
Low external component count; suitable for crystal/ceramic filters
Excellent sensitivity: 1.5 µV across input pins (0.22 µV into 50 Ω matching network) for 12 dB SINAD (Signal to Noise and Distortion ratio) for 1 kHz tone with RF at 45 MHz and IF at 455 kHz
SA614A meets cellular radio specifications

Target Applications

Cellular radio FM IF
High performance communications receivers
Intermediate frequency amplification and detection up to 25MHz
RF level meter
Spectrum analyzer
Instrumentation
FSK and ASK data receivers

Features

Low power consumption: 3.3 mA typical
Temperature compensated logarithmic RSSI with a 90 dB dynamic range
Two audio outputs - muted and unmuted
Low external component count; suitable for crystal/ceramic filters
Excellent sensitivity: 1.5 µV across input pins (0.22 µV into 50 Ω matching network) for 12 dB SINAD (Signal to Noise and Distortion ratio) for 1 kHz tone with RF at 45 MHz and IF at 455 kHz
SA614A meets cellular radio specifications

Target Applications

Cellular radio FM IF
High performance communications receivers
Intermediate frequency amplification and detection up to 25MHz
RF level meter
Spectrum analyzer
Instrumentation
FSK and ASK data receivers

OM13535:SA602AD + SA604AD demoboard

Evaluation and Development Boards

OM13530:SA6x4AHR evaluation demo board

Evaluation and Development Boards

SA614A: Low-Power FM IF System

Overview

Features

Target Applications

Features

Target Applications

Development Boards and Designs

Development Boards and Designs