User Manual

Copyright Cirrus Logic, Inc. 2012
(All Rights Reserved)
http://www.cirrus.com
AUG '12
DS880F4
Low-power, 4-in / 6-out HD Audio Codec with Headphone Amp
DIGITAL to ANALOG FEATURES
DAC1 (Headphone)
101 dB Dynamic Range (A-wtd)
-89 dB THD+N
Headphone Amplifier - GND Centered
Integrated Negative-voltage Regulator
No DC-blocking Capacitor Required
50 mW Power/Channel into 16
DAC2 & DAC3 (Line Outs)
110 dB Dynamic Range (A-wtd)
-94 dB THD+N
Differential Balanced or Single-ended
Each DAC Supports 32 kHz to 192 kHz Sample
Rates Independently.
Digital Volume Control
+6.0 dB to -57.5 dB in 0.5 dB Steps
Zero Cross and/or Soft Ramp Transitions
Independent Support of D0 and D3 Power
States for Each DAC
Fast D3 to D0 Transition
Audio Playback in Less Than 50 ms
ANALOG to DIGITAL FEATURES
ADC1 & ADC2
105 dB Dynamic Range (A-wtd)
-88 dB THD+N
Differential Balanced or Single-ended
Inputs
Analog Programmable Gain Amplifier
(PGA) ±12 dB, 1.0 dB Steps, with Zero
Cross Transitions and Mute
MIC Inputs
Pre-amplifier with Selectable 0 dB, +10 dB,
+20 dB, and +30 dB Gain Settings
Programmable, Low-noise MIC Bias Level
Each ADC Supports 8 kHz to 96 kHz Sample
Rates Independently
Additional Digital Attenuation Control
-13.0 dB to -51.0 dB in 1.0 dB steps
Zero Cross and/or Soft Ramp Transitions
Digital Interface for Two Dual Digital Mic Inputs
Independent Support of D0 and D3 Power
States for Each ADC
VL_HD
(1.5 V to 3.3 V)
SRC &
Multibit 
Modulator
Chrg
Pump
Invert
Left HP Out
Left Line Out
2-Chnl
ADC1
Level Translator
HD Audio
Bus
Line/Mic In L
Line/Mic In R
Headphone
Amp - GND
Centered
MIC
Bias
2-Chnl
DAC1
Line
Out
+
-
Right Line Out
+
-
Left Line Out
Line
Out
+
-
Right Line Out
+
-
+
-
+
PGA
Digital
Filter &
SRC
2-Chnl
ADC2
Mic/Line In L
Mic/Line In R
+
-
+
-
PGA
Digital
Filter &
SRC
D-Mic Clock
SPDIF
TX 1
SPDIF
RX SRC
S/PDIF OUT 1
S/PDIF IN
GPIOGPIO
Right HP Out
D-Mic In
HD
Audio
Interface
Chrg
Pump
Buck
+VHP
-VHP
2-Chnl
DAC2
2-Chnl
DAC3
SRC &
Multibit 
Modulator
SRC &
Multibit 
Modulator
VD
(1.5 V to 1.8 V)
Vol/Mute
Vol/Mute
Vol/Mute
Vol/Boost/
Mute
Vol/Boost/
Mute
VA, VA_REF
(3.3 V to 5.0 V)
VA_HP
(3.3 V to 5.0 V)
Mic Bias
Level Translator
VL_IF
(3.3 V)
Jack
Sense
SENSE_A
SPDIF
TX 2
S/PDIF OUT 2
128Fs Clock
Multiplier
HD Bus
Fs
SPDIF
RX
CS4207

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