CS44600-CQZR Cirrus Logic Inc, CS44600-CQZR Datasheet - Page 73

• Manufacturer Part Number: CS44600-CQZR
• Description: Audio Amplifiers 6ch 24-bit 192kHz Dig. Amp Cntrlr T&R
• Manufacturer: Cirrus Logic Inc

Specifications of CS44600-CQZR

• Operating Supply Voltage: 2.5 V
• Supply Current: 150 mA
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 10 C
• Supply Type: Digital
• Supply Voltage (max): 2.62 V
• Supply Voltage (min): 2.37 V
• Package / Case: LQFP-64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DS633F1
Signal to Noise Ratio (SNR)
SRC
Total Harmonic Distortion + Noise (THD+N)
9. REFERENCES
1. Cirrus Logic, “Audio Quality Measurement Specification,” Version 1.0, 1997.
2. Cirrus Logic, “AN18: Layout and Design Rules for Data Converters and Other Mixed Signal Devices,”
3. Cirrus Logic, “AN22: Overview of Digital Audio Interface Data Structures, Version 2.0”, February 1998.; A
4. Philips Semiconductor, “The I²C-Bus Specification: Version 2,” Dec. 1998.
SNR, similar to DR, is the ratio of an arbitrary sinusoidal input signal to the RMS sum of the noise floor, in
the presence of a signal. It is measured over a 20 Hz to 20 kHz bandwidth with units in dB.
Sample Rate Converter. Converts data derived at one sample rate to a differing sample rate. The CS44600
operates at a fixed sample frequency. The internal sample rate converter is used to convert digital audio
streams playing back at other frequencies to the PWM output rate.
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.
http://www.cirrus.com/products/papers/meas/meas.html
Version 6.0, February 1998.
useful tutorial on digital audio specifications.
http://www.semiconductors.philips.com
CS44600
73