CS44800-CQZR Cirrus Logic Inc, CS44800-CQZR Datasheet - Page 77
![IC AMP CTLR DGTL 8CH 64-LQFP](/photos/6/80/68092/cs42888-dqz_sml.jpg)
CS44800-CQZR
Manufacturer Part Number
CS44800-CQZR
Description
IC AMP CTLR DGTL 8CH 64-LQFP
Manufacturer
Cirrus Logic Inc
Type
Amplifierr
Datasheet
1.CS44800-CQZR.pdf
(80 pages)
Specifications of CS44800-CQZR
Package / Case
64-LQFP
Applications
Automotive Audio
Mounting Type
Surface Mount
Product
Class-D
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
598-1532 - BOARD EVAL FOR CS44800 PWM CTRL
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
DS632F1
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 CS44800
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
CS44800
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