參數(shù)資料
型號(hào): CDB4329
廠商: Cirrus Logic, Inc.
英文描述: 20-Bit, Stereo D/A Converter for Digital Audio
中文描述: 20位,立體聲D / A轉(zhuǎn)換器的數(shù)字音頻
文件頁數(shù): 18/36頁
文件大?。?/td> 1540K
代理商: CDB4329
CS4329
18
DS153F1
PARAMETER DEFINITIONS
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.
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.
Idle Channel Noise / Signal-to-Noise-Ratio
The ratio of the rms analog output level with 1kHz full scale digital input to the rms analog
output level with all zeros into the digital input. Measured A-weighted over a 10 Hz to 20 kHz
bandwidth. Units in decibels. This specification has been standardized by the Audio
Engineering Society, AES17-1991, and referred to as Idle Channel Noise. This specification has
also been standardized by the Electronic Industries Association of Japan, EIAJ CP-307, and
referred to as Signal-to-Noise-Ratio.
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 decibels.
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.
De-Emphasis Error
A measure of the difference between the ideal de-emphasis filter and the actual de-emphasis
filter response. Measured from 10 Hz to 20 kHz relative to 1 kHz. Units in decibels.
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.
相關(guān)PDF資料
PDF描述
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