Design Files
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High-Performance Low-Power Mixer FM IF System
- This page contains information on a product that is no longer manufactured (discontinued). Specifications and information herein are available for historical reference only.
The SA605 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), and voltage regulator. The SA605 combines the functions of NXP SA602A and SA604A, but features a higher mixer input intercept point, higher IF bandwidth (25 MHz) and temperature compensated RSSI and limiters permitting higher performance application. The SA605 is available in 20-lead SO (surface-mounted miniature package) and 20-lead SSOP (shrink small outline package).
The SA605 and SA615 are functionally the same device types. The difference between the two devices lies in the guaranteed specifications. The SA615 has a higher ICC, lower input third-order intercept point, lower conversion mixer gain, lower limiter gain, lower AM rejection, lower SINAD, higher THD, and higher RSSI error than the SA605. Both the SA605 and SA615 devices meet the EIA specifications for AMPS and TACS cellular radio applications.
Product Details
Features
Key Features
- Low power consumption: 5.7 mA typical at 6 V
- Mixer input to >500 MHz
- Mixer conversion power gain of 13 dB at 45 MHz
- Mixer noise figure of 4.6 dB at 45 MHz
- XTAL oscillator effective to 150 MHz (L/C oscillator to 1 GHz local oscillator can be injected)
- 102 dB of IF amplifier/limiter gain
- 25 MHz limiter small signal bandwidth
- Temperature-compensated logarithmic Received Signal Strength Indicator (RSSI) with a dynamic range in excess of 90 dB
- Two audio outputs - muted and unmuted
- Low external component count; suitable for crystal/ceramic/LC filters
- Excellent sensitivity: 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
- SA605 meets cellular radio specifications
- ESD hardened
- Cellular radio FM IF
- High performance communications receivers
- Single conversion VHF/UHF receivers
- SCA receivers
- RF level meter
- Spectrum analyzer
- Instrumentation
- FSK and ASK data receivers
- Log amps
- Wideband low current amplification
Part numbers include: SA605D, SA605DK.
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Documentation
Quick reference to our documentation types.
1-5 of 10 documents
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Application Note
Evaluating the SA605 SO and SSOP demo board
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Application Note
Demodulating at 10.7 MHz IF with the SA605
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Application Note
High sensitivity applications of low-power RF/IF integrated circuits
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Application Note
An FM/IF system for DECT and other high speed GFSK applications
