PGA4311
SBOS230A – MARCH 2002 – REVISED JUNE 2002
4 Channel Audio Volume Control
FEATURES
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DIGITALLY-CONTROLLED ANALOG VOLUME
CONTROL:
Four Independent Audio Channels
Serial Control Interface
Zero Crossing Detection
Mute Function
WIDE GAIN AND ATTENUATION RANGE:
+31.5dB to –95.5dB with 0.5dB Steps
LOW NOISE AND DISTORTION:
120dB Dynamic Range
0.0004% THD+N at 1kHz (U–Grade)
0.0002% THD+N at 1kHz (A–Grade)
NOISE-FREE LEVEL TRANSITIONS
LOW INTERCHANNEL CROSSTALK:
–130dBFS
POWER SUPPLIES:
±5V
Analog, +5V Digital
AVAILABLE IN AN SOP-28 PACKAGE
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APPLICATIONS
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AUDIO AMPLIFIERS
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MIXING CONSOLES
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MULTI–TRACK RECORDERS
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BROADCAST STUDIO EQUIPMENT
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MUSICAL INSTRUMENTS
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EFFECTS PROCESSORS
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A/V RECEIVERS
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CAR AUDIO SYSTEMS
DESCRIPTION
The PGA4311 is a high–performance, 4-channel audio
volume control designed for professional and high-end
consumer audio systems. Using high performance
operational amplifier stages internal to the PGA4311
yields low noise and distortion, while providing the
capability to drive 600Ω loads directly without buffering.
The 3-wire serial control interface allows for connection
to a wide variety of host controllers, in addition to
support for daisy-chaining of multiple PGA4311
devices.
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
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Copyright
2002, Texas Instruments Incorporated
BURR-BROWN [ BURR-BROWN CORPORATION ]
