ACS422A68TAGZBX8 IDT, ACS422A68TAGZBX8 Datasheet - Page 10

• Manufacturer Part Number: ACS422A68TAGZBX8
• Description: Interface - CODECs
• Manufacturer: IDT

Specifications of ACS422A68TAGZBX8

• Rohs: yes
• Part # Aliases: IDTACS422A68TAGZBX8

ACS422x68
LOW-POWER, HIGH-FIDELITY, INTEGRATED CODEC
©2011 INTEGRATED DEVICE TECHNOLOGY, INC.
To enhance the sound available from the small, low-power speakers typically found in a portable device, the
ACS422x68 provides numerous audio enhancement capabilities. The ACS422x68 features dual, independent, pro-
grammable left/right 6-band equalization, allowing the system designer to provide an advanced system equalizer to
accommodate the specific speakers and enclosure design. A compressor/limiter features programmable attack and
release thresholds, enabling the system designer to attenuate loud noise excursions to avoid speaker artifacts, thus
allowing the underlying content to be played at a louder volume without distortion. For compressed audio, a program-
mable expander is available to help restore the dynamic range of the original content. A stereo depth enhancement
algorithm allows common left/right content (e.g. dialog) to be attenuated separately from other content, providing a per-
ceived depth separation between background and foreground audio. Psychoacoustic bass and treble enhancement
algorithms achieve a rich, full tone even from originally compressed content, and even with speakers generally unable
to play low-frequency sounds.
1.3.
On the analog input side, the device features multiple line-in/microphone inputs, which can be used for analog micro-
phone, or line-in inputs. In addition, digital microphones are also supported. The device provides input gain control,
separate volume controls, automatic leveling capability, and programmable microphone boost to smooth input record-
ing. A programmable silence “floor” or “threshold” can be set to minimize background noise.
Audio Inputs
10
ACS422X68
V1.6 01/13