SA614A Low power FM IF system Rev. 4 14 February 2014 Product data sheet 1. General description 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. 2. Features and benefits 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 V across inputs pins (0.22 V into 50 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 3. Applications Cellular radio FM IF High performance communication receiver Intermediate frequency amplification and detection up to 25 MHz RF level meter Spectrum analyzer Instrumentation FSK and ASK data receivers 4. Ordering information Table 1. Ordering information T = 40 C to +85 C amb Type number Package Name Description Version SA614AD SO16 plastic small outline package 16 leads body width 3.9 mm SOT109-1 SA614AHR HXQFN16 plastic thermal enhanced extremely thin quad flat package no leads SOT1039-2 16 terminals body 3 3 0.5 mmSA614A NXP Semiconductors Low power FM IF system 5. Block diagram GND 16 (13) 15 (12) 14 (11) 13 (10) 12 (9) 11 (8) 10 (7) 9 (6) LIMITER IF AMP QUAD SIGNAL DET STRENGTH VOLTAGE REGULATOR MUTE 1 (14) 2 (15) 3 (16) 4 (1) 5 (2) 6 (3) 7 (4) 8 (5) GND V CC aaa-009746 Pin numbers for SO16 HXQFN16 pins shown in parentheses. Fig 1. Block diagram of SA614A SA614A All information provided in this document is subject to legal disclaimers. NXP B.V. 2014. All rights reserved. Product data sheet Rev. 4 14 February 2014 2 of 28