CS4298 Datasheet, PDF (49/52 Pages) Cirrus Logic – SoundFusion Audio/Modem Codec 97 (AMC 97)

CS4298
9. PARAMETER AND TERM DEFINITIONS
AC ’97 Specification
Refers to the Audio Codec ‘97 Component Specification Ver 2.1 published by Intel^®
Corporation [].
AC ’97 Controller or Controller
Refers to the control chip which interfaces to the Codec’s AC-link. This has been also called
DC ’97 for Digital Controller ‘97 [].
AC ’97 Registers or Codec registers
Refers to the 64-field register map defined in the AC ’97 Specification.
ADC
Refers to a single Analog-to-Digital converter in the Codec. “ADCs” refers to the stereo pair of
Analog-to-Digital converters.
DAC
A single Digital-to-Analog converter in the Codec “DACs” refers to the stereo pair of Digital-
to-Analog converters.
SRC
Sample Rate converter. Converts data derived at one sample rate to a differing sample rate.
Codec
Refers to the chip containing the ADCs, DACs, and analog mixer. In this data sheet, the Codec
is the CS4297A9.
FFT
Fast Fourier Transform.
Resolution
The number of bits in the output words to the DACs, and in the input words to the ADCs.
Differential Nonlinearity
The worst case deviation from the ideal code width. Units in LSB.
dB FS A
dB FS is defined as dB relative to full-scale. The “A” indicates an A weighting filter was used.
DS315PP2
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