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SSM2161S-REEL Datasheet

  • SSM2161S-REEL

  • 6- and 4-Channel, Serial Input Master/Balance Volume Control...

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a
FEATURES
Clickless Digitally Controlled Level Adjustment
SSM2160: Six Channels
SSM2161: Four Channels
7-Bit Master Control Gives 128 Levels of Attenuation
5-Bit Channel Controls Give 32 Levels of Gain
Master/Channel Step Size Set by External Resistors
100 dB Dynamic Range
Automatic Power On Mute
Excellent Audio Characteristics:
0.01% THD+N
0.001% IMD (SMPTE)
鈥?0 dBu Noise Floor
鈥?0 dB Channel Separation
90 dB SNR
Single and Dual Supply Operation
APPLICATIONS
Home Theater Receivers
Surround Sound Decoders
Circle Surround* and AC-3* Decoders
DSP Soundfield Processors
HDTV and Surround TV Audio Systems
Automotive Surround Sound Systems
Multiple Input Mixer Consoles and Amplifiers
GENERAL DESCRIPTION
6- and 4-Channel, Serial Input
Master/Balance Volume Controls
SSM2160/SSM2161
FUNCTIONAL BLOCK DIAGRAM
V+
V鈥?/div>
V
REF
POWER
SUPPLY AND
REFERENCE
GENERATOR
VCA
CH1 IN
CH1 OUT
5-BIT
CHANNEL
DAC
鈭?/div>
CH2 IN
VCA
CH2 OUT
5-BIT
CHANNEL
DAC
鈭?/div>
CH3 IN
VCA
CH3 OUT
5-BIT
CHANNEL
DAC
鈭?/div>
CH4 IN
VCA
CH4 OUT
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 鈥渃lick-
ing鈥?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
鹵
5 V to
鹵
10 V. The SSM2161 can
be operated from single supplies of +8.5 V to +20 V (for
automotive applications) or dual supplies from
鹵
4.25 V to
鹵
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. See the Ordering Guide for
more details.
REV. 0
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
CLK
DATA
LD
WRITE
5-BIT
CHANNEL
DAC
鈭?/div>
CH5 IN
VCA
CH5 OUT
5-BIT
CHANNEL
DAC
鈭?/div>
CH6 IN
VCA
CH6 OUT
5-BIT
CHANNEL
DAC
7-BIT
MASTER
DAC
鈭?/div>
CH SET
STEP SIZE
ADJUST
MSTR SET
MSTR OUT
SHIFT REGISTER
AND
ADDRESS
DECODER
*Circle
Surround is a registered trademark of Rocktron Corporation.
AC-3 is a registered trademark of Dolby Labs, Inc. Windows is a regis-
tered trademark of Microsoft Corp.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
漏 Analog Devices, Inc., 1996

SSM2161S-REEL相關(guān)型號PDF文件下載

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  • 英文版
    HUSH Stereo Noise Reduction System with Adaptive Threshold
    AD
  • 英文版
    HUSH Stereo Noise Reduction System with Adaptive Threshold
    AD [Analog...
  • 英文版
    Decoder 5.1-Channel Soundfield Generator
    AD
  • 英文版
    Decoder 5.1-Channel Soundfield Generator
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  • 英文版
    VOLTAGE CONTROLLED AMPLIFIER
    ETC
  • 英文版
    VOLTAGE CONTROLLED AMPLIFIER
    ETC [ETC]
  • 英文版
    OPERATIONAL VOLTAGE CONTROLLED ELEMENT
    ETC
  • 英文版
    OPERATIONAL VOLTAGE CONTROLLED ELEMENT
    ETC [ETC]
  • 英文版
    Self-Contained Audio Preamplifier
    AD
  • 英文版
    Self-Contained Audio Preamplifier
    AD [Analog...
  • 英文版
    Trimless Voltage Controlled Amplifiers
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    Trimless Voltage Controlled Amplifiers
    AD [Analog...
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    Self-Contained Audio Preamplifier
    AD
  • 英文版
    Self-Contained Audio Preamplifier
    AD [Analog...
  • 英文版
    DUAL LINEAR ANTILOG VOLTAGE CONTROLLED AMPLIFIER
    ETC
  • 英文版
    DUAL LINEAR ANTILOG VOLTAGE CONTROLLED AMPLIFIER
    ETC [ETC]
  • 英文版
    DUAL LINEAR ANTILOG VOLTAGE CONTROLLED AMPLIFIER
    ETC
  • 英文版
    DUAL LINEAR ANTILOG VOLTAGE CONTROLLED AMPLIFIER
    ETC [ETC]
  • 英文版
    QUAD CURRENT CONTROLLED AMPLIFIER
    ETC
  • 英文版
    QUAD CURRENT CONTROLLED AMPLIFIER
    ETC [ETC]

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