DATASHEET
PORTABLE CONSUMER CODEC
LOW-POWER, HIGH-FIDELITY INTEGRATED CODEC
ACS422x00
DESCRIPTION
FEATURES
The ACS422x00 is a low-power, high-fidelity integrated
CODEC targeted at portable applications such as tablet
computers, personal navigation devices, portable projec-
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High fidelity 24-bit stereo CODEC
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DAC 102dB SNR; THD+N better than -82dB
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ADC 90dB SNR, THD + N better than -80dB
tors and speaker docks.
In addition to a high-fidelity
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Built in audio controls and processing
TM
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3D stereo enhancement
low-power CODEC, the device integrates a DDX
class-D speaker amplifier, a true cap-less headphone
amplifier, and four programmable system PLLs to enable
the timing management of the systems applications pro-
cessor, USB interface, secondary audio and other subsys-
tems. Beyond high-fidelity for portable systems, the device
offers an enriched “audio presence” through built-in audio
processing capability The ACS422x00 has been designed
with rapid customization in mind. IDT is able to rapidly pro-
vide varying levels of integration, additional audio process-
ing, more or fewer PLLs, etc, according to the needs of
large markets or customers.
Dual (cascaded) stereo 6-band parametric equalizers
Programmable Compressor/Limiter/Expander
Psychoacoustic Bass and Treble enhancement
processing
TM
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Filterless Stereo DDX Class D
Speaker Driver
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1W/channel (8) or 2W/channel
(4), 0.05% THD+N typical
Tri-state DDXTM Class D achieves low EMI and high
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efficiency
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>80% efficiency at 1W
Spread spectrum support for reduced EMI output power
mode
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Anti-Pop circuitry
TARGET APPLICATIONS
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On-chip true cap-less headphone driver
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Tablet Computers
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35 mW output power (16)
Charge-pump allows true ground centered outputs
SNR of 102dB
Portable Navigation Devices
Personal Media Players
Portable Projectors
Speaker Docks
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I2S data interface
Microphone/line-in interface
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Analog microphone or line-in inputs
Digital microphone (ACS422D00)
Automatic level control
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4 on-chip low-jitter PLLs for internal and system
timing
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Multiple frequency options
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Spread spectrum support
Low power with built in power management
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1.7 V CODEC supports 1Vrms
Very low standby and no-signal power consumption
1.8V digital / 1.7V analog supply for low power
2
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2-wire (I C compatible) control interface
68-pin dual row 6x6 mm Thermal Leadless Array
package
TM
DDX and the DDX logo are trademarks of Apogee Technology.
1
V1.6 08/13
ACS422X00
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
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