CS43198
130-dB, 32-Bit High-Performance DAC with Pseudodifferential Outputs
System Features
Direct Stream Digital (DSD ) path
Enhanced oversampling DAC architecture Up to 256Fs DSD
32-bit resolution Patented DSD processor
Up to 384-kHz sampling rate On-chip 50-kHz filter to meet Scarlet Book Super
Audio Compact Disk (SACD) recommendations
Low clock jitter sensitivity
Matched PCM and DSD analog output levels
Auto mute detection
Nondecimating volume control with 0.5-dB step size
Integrated high performance outputs
and soft ramp
130-dB dynamic range (A-weighted)
DSD and Pulse-code modulation (PCM) mixing for
115-dB total harmonic distortion + noise (THD+N)
alerts
110-dB interchannel isolation
Dedicated DSD and DoP pin interface
Up to 2-V pseudodifferential stereo analog output
Direct DSD path support
rms
Headphone detection
Serial audio input path
Headphone plug-in detection
Programmable Hi-Fi digital filter
Popguard technology eliminates pop noise
Five selectable digital filter responses
Integrated PLL
Low-latency Mode minimizes pre-echo
Support for 11.2896-/22.5792-, 12.288-/24.576-, 9.6-/
110 dB of stopband attenuation
19.2-, 12-/24-, and 13-/26-MHz system MCLK rates
Supports sample rates from 32 to 384 kHz
Reference clock sourced from XTI/MCLK pin
2
I S, right-justified, left-justified, TDM, and
System clock output
DSD-over-PCM (DoP) interface
Mono Mode (differential) support
Master or slave operation
2
I C controlup to 1 MHz Volume control with 0.5-dB step size and soft ramp
Wideband Flatness Mode Support 44.1 kHz deemphasis and inverting feature
40-pin 5mm 5mm QFN or 42-ball CSP package options
Applications
Smart phones, tablets, portable media players, laptops,
digital headphones, powered speakers, AVR, home
theater systems, Blu-ray/DVD/SACD players, and pro
audio
Internal
Interface Analog Supply
Supply (VL) Supply (VD) (VA,VCP)
TSO Battery Supply
+1.8V +1.8V FILT+ FILT-
+1.8V
(VP)
FLYC_VCP
FLYP_VCP
FLYN_VCP
Interrupt
Internal
VCP_FILT+
Sources Digital LDOs
Voltage Charge Pump
VCP_FILT-
Digital Core
Reference
FLYP_VA
FLYN_VA
-VA
VCP_FILT+
Interpolation VA
PLL
CLKOUT Filter and
Multibit
Volume
DAC and Filter AOUTA
Control
Modulator
REFA
XTAL
XTO
OSC
-VA
VCP_FILT-
VCP_FILT+
Interpolation VA
XTI/MCLK
Filter and
Multibit
SCLK1
Volume
DAC and Filter AOUTB
ASP
Control
Modulator
LRCK1
REFB
-VA
VCP_FILT-
SDIN1
DoP to
DSDCLK/SCLK2
DSD
XSP/DSD
DSD
DSDB/LRCLK2 Engine
Audio
Processor
Interface
DSDA/SDIN2
Popguard
HPDETECT HP_DETECT
Circuitry
Register/Hardware
Control Port Level Translator
Configuration
ADR SDA SCL
RESET
Copyright Cirrus Logic, Inc. 20152017
DS1156F1
(All Rights Reserved)
OCT 17
CS43198
General Description
The CS43198 is a high-performance, 32-bit resolution, stereo audio DAC that supports up to 384-kHz sampling frequency
with pseudodifferential analog outputs. The advanced 32-bit oversampled multibit modulator with mismatch shaping
technology eliminates distortion due to on-chip component mismatch. Proprietary digital-interpolation filters support five
selectable filter responses with pseudo-linear phase and ultralow latency to minimize pre-echos and ringing artifacts. An
on-chip programmable filter is available for further response customization. Other features include volume control with
0.5-dB steps, wideband flatness mode support, and digital deemphasis for 44.1-kHz sample rate.
The patented on-chip DSD processor preserves audio integrity by allowing signal processing such as volume control and
50-kHz Scarlet Book recommended filtering to be applied directly to the DSD stream without an intermediate decimation
stage. Additional features like volume matching and channel mixing enable seamless transition between DSD and PCM
playback paths. Direct DSD Mode is also provided to bypass the DSD processor.
2
The CS43198 accepts I S, right-justified, left-justified, and TDM-format PCM data at sample rates from 32 to 384 kHz. The
2
industry-standard high-speed I C interface capable of up to 1-MHz operation provides easy configuration control. An
integrated PLL allows for maximum clocking flexibility in any system. Popguard technology eliminates output transients
upon power-up or power-down events.
The CS43198 is available in a commercial-grade 42-ball WLCSP or 40-pin QFN package for operation from 10C to
+70C.
2 DS1156F1