CS4339-KSZR【PDF 15/25 页】IC DAC STER 24BIT 96KHZ 8-SOIC

CS4334/5/8/9

5. PARAMETER DEFINITIONS

Total Harmonic Distortion + Noise (THD+N)

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

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

Dynamic Range

The ratio of the full scale 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 measurement over the specified bandwidth made

with a -60 dBFS signal. 60 dB is then added to the resulting measurement to refer the measurement to full

scale. This technique ensures that the distortion components are below the noise level and do not effect the

measurement. This measurement technique has been accepted by the Audio Engineering Society, AES17-

1991, and the Electronic Industries Association of Japan, EIAJ CP-307.

Interchannel Isolation

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

output with all zeros 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 Error

The deviation from the nominal full-scale analog output for a full-scale digital input.

Gain Drift

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

6. REFERENCES

"How to Achieve Optimum Performance from Delta-Sigma A/D & D/A Converters" by Steven Harris. Paper

presented at the 93rd Convention of the Audio Engineering Society, October 1992.

CDB4334/5/8/9 Evaluation Board Datasheet

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