Cirrus Logic CS43L21 - Manual

Copyright
 Cirrus Logic, Inc. 2013
(All Rights Reserved)
http://www.cirrus.com
DS723F1
JAN ‘13
Low-Power, Stereo Digital-to-Analog Converter
FEATURES
 98 dB dynamic range (A-weighted)
 -86 dB THD+N
 Headphone amplifier–GND centered
– On-chip charge pump provides -VA_HP
– No DC-blocking capacitor required
– 46 mW power into stereo 16
 @ 1.8 V
– 88 mW power into stereo 16
 @ 2.5 V
– -75 dB THD+N
 Digital signal processing engine
– Bass and treble tone control, de-emphasis
– PCM mix with independent volume control
– Master digital volume control and limiter
– Soft-ramp and zero-cross transitions
 Beep generator
– Tone selections across two octaves
– Separate volume control
– Programmable On and Off time intervals
– Continuous, periodic, or one-shot beep
selections
 Programmable peak-detect and limiter
 Pop and click suppression
SYSTEM FEATURES
 24-bit Conversion
 4- to 96-kHz sample rate
 Multibit delta–sigma architecture
 Low power operation
– Stereo playback: 12.93 mW @ 1.8 V
 Variable power supplies
– 1.8- to 2.5-V digital and analog
– 1.8- to 3.3-V interface logic
 Power-down management
 Software Mode (I²C ™ and SPI ™ control)
 Hardware mode (standalone control)
 Digital routing/mixes:
– Mono mixes
 Flexible clocking options
– Master or slave operation
– High-impedance digital output option (for
easy MUXing between DAC and other data
sources)
– Quarter-speed mode (allows 8-kHz Fs
while maintaining a flat noise floor up to
16 kHz)
APPLICATIONS
 Portable audio players
 MD players
 PDAs
 Personal media players
 Portable game consoles
 Smart phones
 Wireless headsets
1.8 V to 3.3 V
Multibit
Modulator
Charge
Pump
Left HP Out
Right HP Out
Serial Audio
Input
1.8 V to 2.5 V
PCM
S
e
ri
a
l
In
te
rf
ac
e
Register
Configuration
Le
vel
Tra
n
sl
at
or
Reset
Hardware
Mode or I 2 C &
SPI Software
Mode
Control Data
Beep
Generator
MUX
MUX
Headphone
Amp - GND
Centered
Headphone
Amp - GND
Centered
1.8 V to 2.5 V
Switched
Capacitor DAC
and Filter
Switched
Capacitor DAC
and Filter
Digital
Signal
Processing
Engine
CS43L21