Overview
The SSM2160SZ-REEL, produced by Analog Devices Inc., is a 6-channel, serial input master/balance volume control integrated circuit. This component 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 device is suitable for various multichannel audio applications, including home theater surround sound and automotive sound systems.
Key Specifications
| Parameter | Description |
|---|---|
| Number of Channels | 6 |
| Master Control Resolution | 7-bit DAC, 128 levels of attenuation (0 dB to -127 dB) |
| Channel Control Resolution | 5-bit DAC, 32 levels of gain (0 dB to 31 dB) |
| Serial Interface | 3-wire or 4-wire serial data bus |
| Serial Clock Rate | Up to 1 MHz |
| Power Supply | Single supply: +10 V to +30 V; Dual supply: ±5 V to ±15 V |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
Key Features
- Clickless volume control using controlled rate-of-change drive to VCAs.
- Individual channel balance maintained over the entire master control range.
- Automatic muting of all outputs upon power-up.
- Compatibility with most popular microcontrollers via a 3-wire or 4-wire serial interface.
- High impedance inputs for line level signals.
- Windows software and evaluation board available for control and testing.
Applications
The SSM2160SZ-REEL is intended for use in multichannel audio applications, including:
- Home theater surround sound systems.
- Automotive sound systems.
- Professional audio equipment.
- Any system requiring precise digital control over multiple audio channels.
Q & A
- What is the primary function of the SSM2160SZ-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. - How does the SSM2160SZ-REEL eliminate clicking noise?
It uses controlled rate-of-change drive to the voltage-controlled amplifiers (VCAs), eliminating the clicking associated with switched resistive networks. - What is the resolution of the master control?
The master control has a 7-bit DAC, providing 128 levels of attenuation from 0 dB to -127 dB. - What is the resolution of each channel control?
Each channel control has a 5-bit DAC, providing 32 levels of gain from 0 dB to 31 dB. - What type of serial interface does the SSM2160SZ-REEL use?
The device uses a 3-wire or 4-wire serial data bus. - What is the maximum serial clock rate?
The maximum serial clock rate is up to 1 MHz. - What are the power supply options for the SSM2160SZ-REEL?
The device can operate from single supplies of +10 V to +30 V or dual supplies of ±5 V to ±15 V. - Is there any specific software or evaluation board available for the SSM2160SZ-REEL?
Yes, Windows software and an evaluation board are available from Analog Devices for controlling and testing the SSM2160SZ-REEL. - What are some common applications of the SSM2160SZ-REEL?
Common applications include home theater surround sound systems, automotive sound systems, and professional audio equipment. - How are the outputs handled upon power-up?
All outputs are automatically muted upon power-up.
