CS35L01 Datasheet, PDF (29/34 Pages) Cirrus Logic – 2.9 W Mono Class-D Audio Amplifier with Low Idle Current

CS35L01/03
7. PARAMETER DEFINITIONS
Signal to Noise Ratio (SNR)
The ratio of the RMS value of the output signal, where P_out is equivalent to the specified output power at
THD+N<1%, to the RMS value of the noise floor with no input signal applied and measured over the spec-
ified bandwidth, typically 20 Hz to 20 kHz. This measurement technique has been accepted by the Electron-
ic Industries Association of Japan, EIAJ CP-307. Expressed in decibels.
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
band width (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.
Idle Channel Noise (ICN)
Measure of the signal present on the outputs of the device when no audio signal is presented to the input
pins. For this test, both input pins are shorted together, setting the differential signal to them to zero.
DS909A2
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