Overview
The SA605D/01,118 is a high-performance monolithic low-power FM IF (Intermediate Frequency) system produced by NXP USA Inc. This component integrates several key functions, including a mixer/oscillator, two limiting intermediate frequency amplifiers, a quadrature detector, muting circuitry, a logarithmic received signal strength indicator (RSSI), and a voltage regulator. It combines the functionalities of the NXP SA602A and SA604A but offers enhanced performance with a higher mixer input intercept point, higher IF bandwidth, and temperature-compensated RSSI and limiters.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | 4.5 to 8 | V |
| Current Consumption | 5.7 | mA (typical at 6 V) |
| Mixer Input Frequency | >500 | MHz |
| Mixer Conversion Power Gain | 13 | dB (at 45 MHz) |
| Mixer Noise Figure | 4.6 | dB (at 45 MHz) |
| XTAL Oscillator Frequency | up to 150 | MHz |
| IF Amplifier/Limiter Gain | 102 | dB |
| Limiter Small Signal Bandwidth | 25 | MHz |
| Operating Temperature | -40 to +85 | °C |
| Package Type | 20-lead SOIC or 20-lead SSOP |
Key Features
- Low power consumption: 5.7 mA typical at 6 V
- Mixer input frequency up 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 up to 150 MHz (L/C oscillator up to 1 GHz)
- 102 dB of IF amplifier/limiter gain
- 25 MHz limiter small signal bandwidth
- Temperature-compensated logarithmic 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
Applications
The SA605D/01,118 is suitable for various applications, including:
- FM remote receivers
- Cellular radio applications (meets EIA specifications for AMPS and TACS)
- Other wireless communication systems requiring high-performance FM IF functionality
Q & A
- What is the primary function of the SA605D/01,118?
The SA605D/01,118 is a high-performance monolithic low-power FM IF system that integrates a mixer/oscillator, intermediate frequency amplifiers, and other key functions.
- What is the supply voltage range for the SA605D/01,118?
The supply voltage range is 4.5 V to 8 V.
- What is the typical current consumption of the SA605D/01,118 at 6 V?
The typical current consumption is 5.7 mA.
- What is the maximum mixer input frequency for the SA605D/01,118?
The mixer input frequency can exceed 500 MHz.
- What is the mixer conversion power gain at 45 MHz?
The mixer conversion power gain is 13 dB at 45 MHz.
- What is the operating temperature range for the SA605D/01,118?
The operating temperature range is -40°C to +85°C.
- What types of packages are available for the SA605D/01,118?
The component is available in 20-lead SOIC and 20-lead SSOP packages.
- What is the dynamic range of the temperature-compensated RSSI?
The dynamic range of the RSSI is in excess of 90 dB.
- Does the SA605D/01,118 meet cellular radio specifications?
Yes, it meets EIA specifications for AMPS and TACS cellular radio applications.
- What is the sensitivity of the SA605D/01,118 for a 1 kHz tone at 45 MHz and IF at 455 kHz?
The sensitivity is 0.22 μV into a 50 Ω matching network for 12 dB SINAD.
