参数资料
型号: ADAV4601BSTZ
厂商: Analog Devices Inc
文件页数: 6/60页
文件大小: 0K
描述: IC AUDIO CODEC PROCESSOR 80-LQFP
标准包装: 1
系列: SigmaDSP®
类型: 音频处理器
应用: TV
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 托盘
ADAV4601
Rev. B | Page 14 of 60
TERMINOLOGY
Dynamic Range
The ratio of a full-scale input signal to the integrated input noise
in the pass band (20 Hz to 20 kHz), expressed in decibels (dB).
Dynamic range is measured with a 60 dB input signal and is equal
to (S/[THD+N]) + 60 dB. Note that spurious harmonics are below
the noise with a 60 dB input; therefore, the noise level establishes
the dynamic range. The dynamic range is specified with and
without an A-weight filter applied.
Pass Band
The region of the frequency spectrum unaffected by the
attenuation of the filter of the digital decimator.
Pass-Band Ripple
The peak-to-peak variation in amplitude response from equal
amplitude input signal frequencies within the pass band,
expressed in decibels.
Stop Band
The region of the frequency spectrum attenuated by the filter
of the digital decimator to the degree specified by stop-band
attenuation.
Gain Error
With a near full-scale input, the ratio of the actual output to the
expected output, expressed in dB.
Interchannel Gain Mismatch
With identical near full-scale inputs, the ratio of the outputs of
the two stereo channels, expressed in decibels.
Crosstalk
Ratio of response on one channel with a grounded input to a
full-scale 1 kHz sine wave input on the other channel, expressed
in decibels.
Power Supply Rejection
With no analog input, the signal present at the output when a
300 mV p-p signal is applied to power supply pins, expressed in
decibels of full scale.
Group Delay
Intuitively, the time interval required for an input pulse to appear at
the output of the converter, expressed in milliseconds (ms); more
precisely, the derivative of radian phase with respect to radian
frequency at a given frequency.
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