CS5346-CQZR【PDF 28/38 页】IC ADC AUD 103DB 200KHZ 48-LQFP

DS861PP3

CS5346

8. PARAMETER DEFINITIONS

Dynamic Range

The ratio of the rms value of the signal to the rms sum of all other spectral components over the specified

bandwidth. Dynamic Range is a signal-to-noise ratio measurement over the specified bandwidth made with

a -60 dBFS signal. 60 dB is added to resulting measurement to refer the measurement to full scale. This

technique ensures that the distortion components are below the noise level and do not affect the measure-

ment. This measurement technique has been accepted by the Au dio Engineering Society, AES17-1991,

and the Electronic Industries Association of Japan, EIAJ CP-307. Expressed in decibels.

Total Harmonic Distortion + Noise

The ratio of the rms value of the signal to the rms sum of all other spectral components over the specified

bandwidth (typically 10 Hz to 20 kHz), including distortion components. Expressed in decibels. Measured

at -1 and -20 dBFS as suggested in AES17-1991 Annex A.

Frequency Response

A measure of the amplitude response variation from 10 Hz to 20 kHz relative to the amplitude response at

1 kHz. Units in decibels.

Interchannel Isolation

A measure of crosstalk between the left and right channels. Measured for each channel at the converter's

output with no signal to the input under test and a full-scale signal applied to the other channel. Units in deci-

bels.

Interchannel Gain Mismatch

The gain difference between left and right channels. Units in decibels.

Gain Drift

The change in gain value with temperature. Units in ppm/°C.

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