The SSM2160 and SSM2161 allow digital control of volume of six and four audio channels, respectively, with a master level control and individual channel controls. Low distortion VCAs (Voltage Controlled Amplifiers) are used in the signal path. By using controlled rate-of-change drive to the VCAs, the "clicking" associated with switched resistive networks is eliminated in the Master control. Each channel is controlled by a dedicated 5-bit DAC providing 32 levels of gain. A master 7-bit DAC feeds every control port giving 128 levels of attenuation. Step sizes are nominally 1 dB and can be changed by external resistors. Channel balance is maintained over the entire master control range. Upon power-up, all outputs are automatically muted. A three- or four-wire serial data bus enables interfacing with most popular microcontrollers. Windows™ software and an evaluation board for controlling the SSM2160 are available.
The SSM2160 can be operated from single supplies of +10 V to +20 V or dual supplies from ±5 V to ±10 V. The SSM2161 can be operated from single supplies of +8.5 V to +20 V (for automotive applications) or dual supplies from ±4.25 V to ±10 V. An on-chip reference provides the correct analog common voltage for single supply applications. Both models come in P-DIP and SO packages.
|Title||Content Type||File Type|
|SSM2160: 6- Channel, Serial Input Master/Balance Volume Controls Data Sheet (Rev A, 02/2003) (pdf, 279 kB)||Data Sheets|
|AN-938: Digital and Analog Measurement Units for Digital CMOS Microphone Preamplifier ASICs (pdf, 75 kB)||Application Notes|
|AN-211: The Alexander Current-Feedback Audio Power Amplifier (pdf, 1154 kB)||Application Notes|
Audio Processors, Amplifiers Deliver Complete HDTV Audio Subsystem
ADI: Analog Essential To HDTV Experience
(Electronic Design, 10/1/2007)
|Analog Devices in Advanced TV||Overview||HTML|
|RAQs index||Rarely Asked Questions||HTML|
|Glossary of EE Terms||Glossary||HTML|
Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.
|Price*(100-499)||Price*1000 pcs||RoHS||View PCN/ PDN||Check Inventory/
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.