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Cirrus Logic - Stereo Codec

Numéro de référence CS42L56
Description Stereo Codec
Fabricant Cirrus Logic 
Logo Cirrus Logic 





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CS42L56 fiche technique
CS42L56
Ultralow Power, Stereo Codec with Class H Headphone Amp
DIGITAL to ANALOG FEATURES
5 mW Stereo Playback Power Consumption
99 dB Dynamic Range (A-wtd)
-86 dB THD+N
Digital Signal Processing Engine
– Bass & Treble Tone Control, De-emphasis
– Master Volume Control (+12 to -102 dB in
0.5 dB steps)
– Soft-ramp & Zero-cross Transitions
– Programmable Peak-detect and Limiter
– Beep Generator with Full Tone Control
Stereo Headphone and Line Amplifiers
Step-down/Inverting Charge Pump
Class H Amplifier - Automatic Supply Adj.
– High Efficiency
– Low EMI
Pseudo-differential Ground-centered Outputs
High HP Power Output at -75 dB THD+N
– 2 x 20 mW Into 16 @ 1.8 V
1 VRMS Line Output @ 1.8 V
Analog Vol. Ctl. (+12 to -60 dB in 1 dB steps)
Analog In to Analog Out Passthrough
Pop and Click Suppression
ANALOG to DIGITAL FEATURES
3.5 mW Stereo Record Power Consumption
95 dB Dynamic Range (A-wtd)
-87 dB THD+N
Configurable Analog Inputs
– Two Pseudo-differential Stereo Inputs or
– One Pseudo-differential Stereo Inputs +
One Standard Stereo Input + One Standard
Mono Input or
– Three Standard Stereo Inputs
– Pseudo-differential Inputs Reduce
Common Mode Signal Noise
– 3:1 Stereo Input MUX for ADC or
Passthrough
Analog Programmable Gain Amplifier (PGA)
– +12 to -6 dB in 0.5 dB steps
– +10 dB or +20 dB Additional Gain for
Microphone Inputs
Programmable, Low-noise MIC Bias Output
Programmable Automatic Level Control (ALC)
– Noise Gate for Noise Suppression
– Programmable Threshold &
Attack/Release Rates
Independent ADC Channel Control
High-pass Filter Disable for DC Measurements
Left Input 1
Pseudo Diff. Input /
Left Input 3
Right Input 1
Left Input 2
Pseudo Diff. Input /
Right Input 3
Right Input 2
Mic Bias Output
Analog Supply (VA)
+1.62 V to +2.75 V
Digital Supply (VLDO)
+1.62 V to +2.75 V
Charge Pump Supply (VCP)
+1.62 V to +2.75 V
LDO Regulator
Step-Down
Inverting
+VHP -VHP
0, +10, or
+20 dB
-6 to +12 dB
0.5 dB Steps
Multi-bit
 ADC
ALC Beep
Attenuator,
Boost, Mix
Mono mix,
Limiter, Bass,
Treble Adjust
Multi-bit
 DAC
ALC HPF
Programmable Mic Bias
Control Port Serial Audio Port
Level Shifter
-
+
+
-
-
+
+
-
Left Headphone Output
Pseudo Diff. Input
Right Headphone Output
Left Line Output
Pseudo Diff. Input
Right Line Output
http://www.cirrus.com
+1.62 V to +3.63 V
Interface Supply
I²C or SPI
Control
I²S or Left Justified
Serial Audio Input/
Output
Copyright Cirrus Logic, Inc. 2014
(All Rights Reserved)
Ground-Centered
Amplifiers
FEB '14
DS851F2

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