Audio Codec. CS42L42 Datasheet

CS42L42 Codec. Datasheet pdf. Equivalent

Part CS42L42
Description Low-Power Audio Codec
Feature CS42L42 Low-Power Audio Codec with SoundWire®–I2S/TDM and Audio Processing System Features • Inte.
Manufacture Cirrus Logic
Datasheet
Download CS42L42 Datasheet

CS42L42 Low-Power Audio Codec with SoundWire®–I2S/TDM and A CS42L42 Datasheet
Recommendation Recommendation Datasheet CS42L42 Datasheet





CS42L42
CS42L42
Low-Power Audio Codec with SoundWire®–I2S/TDM and Audio Processing
System Features
• Integrated fractional-N PLL
• Stereo headphone (HP) output with 114-dB dynamic range — Increases system-clock flexibility for audio processing
— Class H HP amplifier with four-level automatic or
manual supply adjust
— Reference clock sourced from either I2S/TDM bit clock
or MIPI SoundWire clock
— Power output 2 x 35 mW into 30
• Mono mic input with 114-dB dynamic range
— Low-noise headset bias with integrated bias resistor
— 1-VRMS input voltage
— Integrated AC-coupling capacitors
• Integrated detect features
— OMTP (Open Mobile Terminal Platform) and AHJ
(American headset jack) headset-type detection and
configuration with low-impedance internal switches
— Mic short (S0 Button) detect with ADC automute
— Automatic Hi-Z of headset bias output to ground on
headset bias current rise or HP/headset unplug
• System wake from headset/headphone plug/unplug or
S0 button press
• Audio serial port (ASP)
— I2S (two channels) or TDM (up to four channels)
— Slave or Hybrid-Master Mode (bit-clock slave and
LRCK/FSYNC derived from bit clock)
— Sample-rate converter (SRC) for two input channels,
with bypass
— SRC for one output channel, with bypass
— User isochronous audio transport support
— Supports up to 192-kHz sample rate to S/PDIF output
— Sample rate support for 8 to 192 kHz
• Integrated power management
— Digital core operates from either an external 1.2-V
supply or LDO from a 1.8-V supply.
— Step-down charge pump improves HP efficiency
• Interrupt output
— Independent peripheral power-down controls
• Mono equalizer for side-tone mix
• MIPI® SoundWire® or I2C/I2S/TDM control and audio
interface
• S/PDIF transmit (Sony/Philips digital interface format)
— Standby operation from VP with all other supplies
powered off
— VP monitor to detect and report brownout conditions
— Low-impedance switching suppresses ground-noise
Applications
• Ultrabooks, tablets, and smartphones
• Digital headsets
HSIN+
HSIN–
HS4
HS3
HS_CLAMP1
HS_CLAMP2
HS4_REF
HS3_REF
RING_SENSE
TIP _SENSE
VA
MCLK
+ ADC
Analog
Core
Decimators
HPF /
Mute
HS Bias LDO
Headset
Detect,
Switches,
and Depletion
FET Control
Headphone Detect
MCLK
Clock
Gen
PLL
Windnoise
Filter
CS42L42
DIGLDO_PDN
EQ
ADC
Downlink
Downlink
SRC
SRC
SRC
DAO
2
SoundWire
Audio and
Control
Port
2
22
DAI
VL VD_FILT
VP
VCP
LDO
with
Bypass
Digital
Core
POR LDO VP_CP
MCLK
Interpolator Mute DAC
Step -Down
Inverting
+VCP _FILT
+
VCP_FILT
Interpolator Mute DAC
Pseudodifferential Input
+ VCP _FILT
+
VCP_FILT
+VCP_FILT
–VCP_FILT
HPSENSA
HPOUTA
HPSENSB
HPOUTB
I2C Slave
S/PDIF
INT
WAKE
SWIRE_CLK/ ASP_SDOUT SWIRE_SD/ ASP_LRCK/ SWIRE_SEL AD0 AD1 SDA SCL
ASP_SCLK
ASP_SDIN FSYNC
SPDIF_TX
http://www.cirrus.com
Copyright Cirrus Logic, Inc. 2014–2019
(All Rights Reserved)
DS1083F5
NOV 2019



CS42L42
CS42L42
General Description
The CS42L42 is a low-power audio codec with integrated MIPI SoundWire interface or I2C/I2S/TDM interfaces designed
for portable applications. It provides a high-dynamic range, stereo DAC for audio playback and a mono
high-dynamic-range ADC for audio capture.
The CS42L42 provides high performance (up to 24-bit) audio for ADC and DAC audio playback and capture functions as
well as for the S/PDIF transmitter. The CS42L42 architecture includes bypassable SRCs and a bypassable, three-band,
32-bit parametric equalizer that allows processing of digital audio data.
A digital mixer is used to mix the ADC or serial ports to the DACs. There is independent attenuation on each mixer input.
The processing along the output paths from the ADC or serial port to the two stereo DACs includes volume adjustment
and mute control.
The CS42L42 is available in a 49-ball WLCSP package and a 48-pin QFN package for extended temperature range grade
of –40°C to +85°C.
DS1083F5
2





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