Overview
The SSM2166SZ-REEL, produced by Analog Devices Inc., is a highly versatile and feature-rich microphone preamplifier integrated circuit. It is designed to provide a complete solution for conditioning microphone inputs in various audio systems, including computer audio, communications, and public address systems. The device integrates a low noise, voltage-controlled amplifier (VCA) that allows for dynamic gain adjustment and variable compression, ensuring optimal signal quality and preventing overload and popping. Additionally, it includes a downward expander (noise gate) to prevent the amplification of noise or hum, enhancing overall signal clarity.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | SSM2166SZ-REEL |
| Package/Case | SOIC-14 |
| Number of Channels | 1 Channel (Mono) |
| Supply Voltage - Min | 4.5 V |
| Supply Voltage - Max | 5.5 V |
| Minimum Operating Temperature | -40°C |
| Maximum Operating Temperature | +85°C |
| Mounting Style | SMD/SMT |
| Available Set Gain | Up to 60 dB |
| Class | Class-AB |
| GBP - Gain Bandwidth Product | 30 MHz |
| Operating Supply Current | 7.5 mA |
| Output Type | Single |
Key Features
- Data processing and control
- Audio signal conditioning
- Digital audio enhancement
- Sound quality improvement
- Audible signal transmission
- Low noise, voltage-controlled amplifier (VCA) for dynamic gain adjustment
- Variable compression ratio from 1:1 to over 15:1
- Fixed gain of up to 20 dB in 1:1 compression setting
- Input buffer configurable for front-end gains of 0 dB to 20 dB
- Downward expander (noise gate) to prevent noise or hum amplification
Applications
The SSM2166SZ-REEL is ideal for various applications, including:
- Computer audio systems
- Communications systems
- Public address systems
- Audio codecs in computer systems
It is particularly useful in scenarios where vocal clarity and signal quality are critical, such as in speech recognition algorithms and audio enhancement applications.
Q & A
- What is the primary function of the SSM2166SZ-REEL?
The primary function of the SSM2166SZ-REEL is to condition microphone inputs in audio systems, providing features such as variable compression, noise gating, and dynamic gain adjustment.
- What is the package type of the SSM2166SZ-REEL?
The SSM2166SZ-REEL is packaged in a 14-lead SOIC (Small Outline Integrated Circuit) package.
- What is the operating temperature range of the SSM2166SZ-REEL?
The operating temperature range is from -40°C to +85°C.
- How does the SSM2166SZ-REEL handle noise and hum?
The device includes a downward expander (noise gate) that prevents the amplification of noise or hum, enhancing signal quality.
- What is the maximum gain available with the SSM2166SZ-REEL?
The device can provide a gain of up to 60 dB, with a fixed gain of up to 20 dB in the 1:1 compression setting.
- Can the compression ratio be adjusted?
Yes, the compression ratio can be varied from 1:1 to over 15:1 relative to a user-defined rotation point.
- What type of amplifier is used in the SSM2166SZ-REEL?
The device uses a low noise, voltage-controlled amplifier (VCA) of Class-AB type.
- Is the SSM2166SZ-REEL RoHS compliant?
Yes, the SSM2166SZ-REEL is RoHS compliant and lead-free.
- What are the typical applications of the SSM2166SZ-REEL?
Typical applications include computer audio systems, communications systems, public address systems, and audio codecs in computer systems.
- How does the input buffer of the SSM2166SZ-REEL contribute to signal quality?
The input buffer can be configured for front-end gains of 0 dB to 20 dB, optimizing signal levels before digitization and eliminating the need for additional gain adjustments in the digital domain.
- What is the significance of the VCA gain, rotation point, and noise gate adjustment pins in the SSM2166SZ-REEL?
These pins provide a high degree of flexibility, allowing users to adjust the VCA gain, set the compression ratio, and control the noise gate to suit specific application requirements.
