DATASHEET
PORTABLE CONSUMER CODEC
LOW-POWER, HIGH-FIDELITY INTEGRATED CODEC
ACS422x68
The ACS422x68 is a low-power, high-fidelity integrated
CODEC targeted at portable applications such as tablet
computers, personal navigation devices, portable projec-
FEATURES
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High fidelity 24-bit stereo CODEC
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DAC 102dB SNR; THD+N better than -82dB
tors and speaker docks.
In addition to a high-fidelity
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ADC 90dB SNR, THD + N better than -80dB
TM
low-power CODEC, the device integrates a stereo DDX
Class D speaker amplifier and a true cap-less headphone
amplifier. Beyond high-fidelity for portable systems, the
device offers an enriched “audio presence” through built-in
audio processing capability.
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Built in audio controls and processing
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3D stereo enhancement
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
TARGET APPLICATIONS
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1W/channel (8) or 2W/channel
(4), 0.05% THD+N typical
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Tablet Computers
Portable Navigation Devices
Personal Media Players
Portable Projectors
Speaker Docks
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Tri-state DDXTM Class D achieves low EMI and high
efficiency
>80% efficiency at 1W
Spread spectrum support for reduced EMI output power
mode
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Anti-Pop circuitry
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On-chip true cap-less headphone driver
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35 mW output power (16)
Charge-pump allows true ground centered outputs
SNR of 102dB
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I2S data interface
Microphone/line-in interface
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Analog microphone or line-in inputs
Digital microphone (ACS422D68)
Automatic level control
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On-chip low-jitter PLL for audio timing
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
Package Options
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68-pin dual row 6x6 mm TLA package
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63-pin dual row 5x5 mm HLA package
TM
DDX and the DDX logo are trademarks of Apogee Technology.
1
V1.7 07/13
ACS422X68
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.