Overview
The SSM2160S-REEL, produced by Analog Devices Inc., is a 6-channel, serial input master/balance volume control integrated circuit. This device is designed to provide digital control over the volume of six audio channels, featuring a master level control and individual channel controls. It utilizes low distortion voltage-controlled amplifiers (VCAs) in the signal path, eliminating the clicking noise associated with switched resistive networks. The SSM2160S-REEL is suitable for various multichannel audio applications, including home theater surround sound and automotive sound systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Number of Channels | 6 | - |
| Master Control Resolution | 7-bit DAC (128 levels) | - |
| Channel Control Resolution | 5-bit DAC (32 levels) | - |
| Gain Range per Channel | 0 dB to 31 dB | dB |
| Master Attenuation Range | 0 dB to -127 dB | dB |
| Supply Voltage (Single Supply) | +10 V to +20 V | V |
| Supply Voltage (Dual Supply) | ±5 V to ±10 V | V |
| Supply Current (No Load) | 20 mA to 28 mA | mA |
| Package Type | 24-SOIC | - |
| Mounting Type | Surface Mount | - |
Key Features
- Digital control of volume for six audio channels with a master level control and individual channel controls.
- Low distortion VCAs in the signal path to eliminate clicking noise.
- 7-bit DAC for master control and 5-bit DAC for each channel control.
- Gain range of 0 dB to 31 dB per channel and master attenuation range of 0 dB to -127 dB.
- Operates from single or dual supplies.
- 3-wire or 4-wire serial data bus interface compatible with most microcontrollers.
- Automatic muting of all outputs upon power-up.
- Windows software and evaluation board available for control and testing.
Applications
The SSM2160S-REEL is intended for multichannel audio applications, including home theater surround sound systems, automotive sound systems, and other venues requiring high-performance volume and balance controls. It can be used in home theater receivers where the outputs may be fed to power amplifiers or buffered and connected to pre-out/amp-in ports.
Q & A
- What is the primary function of the SSM2160S-REEL? The primary function is to provide digital control over the volume of six audio channels with a master level control and individual channel controls.
- What type of amplifiers are used in the SSM2160S-REEL? Low distortion voltage-controlled amplifiers (VCAs) are used.
- How many levels of gain can each channel control provide? Each channel control can provide 32 levels of gain.
- What is the master attenuation range of the SSM2160S-REEL? The master attenuation range is from 0 dB to -127 dB.
- What are the supply voltage options for the SSM2160S-REEL? It can operate from single supplies of +10 V to +20 V or dual supplies of ±5 V to ±10 V.
- How does the SSM2160S-REEL interface with microcontrollers? It uses a 3-wire or 4-wire serial data bus interface.
- What happens to the outputs upon power-up? All outputs are automatically muted upon power-up.
- Is there any software available for controlling the SSM2160S-REEL? Yes, Windows software and an evaluation board are available for controlling and testing the SSM2160S-REEL.
- What is the package type of the SSM2160S-REEL? The package type is 24-SOIC.
- What is the mounting type of the SSM2160S-REEL? The mounting type is surface mount.
