Overview
The SSM2166S-REEL7, produced by Analog Devices Inc., is a versatile audio amplifier and compressor chip designed to condition microphone inputs in various audio systems. It integrates a complete and flexible solution for improving vocal clarity and signal quality. The device features a low noise, voltage-controlled amplifier (VCA) with dynamic gain adjustment, variable compression, and noise gating capabilities. This makes it an ideal component for use in computer audio systems, communications, and public address systems.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 14-Lead SOIC |
| Operating Temperature Range | -40°C to +85°C |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Maximum Supply Voltage | 5.5 V |
| Minimum Supply Voltage | 4.5 V |
| Maximum Operating Temperature | 85 °C |
| Minimum Operating Temperature | -40 °C |
| Compression Ratio | 1:1 to over 15:1 |
| Fixed Gain (in 1:1 compression setting) | Up to 20 dB |
| Input Buffer Gain | 0 dB to 20 dB |
Key Features
- Low noise, voltage-controlled amplifier (VCA) with dynamic gain adjustment.
- Variable compression ratio set by a single resistor, ranging from 1:1 to over 15:1.
- Noise gating (downward expander) to prevent amplification of noise or hum.
- Input buffer configurable for front-end gains of 0 dB to 20 dB.
- High degree of flexibility through VCA gain, rotation point, and noise gate adjustment pins.
- Operates over an extended industrial temperature range.
Applications
The SSM2166S-REEL7 is particularly useful in various audio applications, including:
- Computer audio systems: Enhances microphone input conditioning and vocal clarity.
- Communications systems: Improves speech quality and reduces noise.
- Public address systems: Optimizes signal levels and prevents overload and popping.
- Audio codecs: Serves as an ideal companion product to optimize signal levels before digitization.
Q & A
- What is the primary function of the SSM2166S-REEL7?
The primary function is to condition microphone inputs with variable compression and noise gating. - What is the operating temperature range of the SSM2166S-REEL7?
The operating temperature range is -40°C to +85°C. - What is the supply voltage range for the SSM2166S-REEL7?
The supply voltage range is 4.5 V to 5.5 V. - How is the compression ratio set in the SSM2166S-REEL7?
The compression ratio is set by a single resistor and can be varied from 1:1 to over 15:1. - What is the maximum fixed gain in the 1:1 compression setting?
The maximum fixed gain in the 1:1 compression setting is up to 20 dB. - What is the purpose of the noise gating feature?
The noise gating feature prevents the amplification of noise or hum. - In what package type is the SSM2166S-REEL7 available?
The SSM2166S-REEL7 is available in a 14-Lead SOIC package. - What are some common applications of the SSM2166S-REEL7?
Common applications include computer audio systems, communications systems, public address systems, and as a companion to audio codecs. - How does the SSM2166S-REEL7 improve signal quality?
It improves signal quality by optimizing signal levels, reducing noise, and preventing overload and popping. - Is the SSM2166S-REEL7 suitable for industrial use?
Yes, it is guaranteed for operation over the extended industrial temperature range.
