Draft
3/10/15
CS5343/4
98 dB, 96 kHz, Multi-Bit Audio A/D Converter
Features
Advanced Multi-Bit
Architecture
24-bit Conversion
Supports Audio Sample Rates Up to 108 kHz
98 dB Dynamic Range at 5 V
-92 dB THD+N at 5 V
Low-Latency Digital Filter
High-Pass Filter to Remove DC Offsets
Single +3.3 V or +5 V Power Supply
Power Consumption < 40 mW at 3.3 V
Master or Slave Operation
Slave Mode Speed Auto-Detect
Master Mode Default Settings
256x or 384x MCLK/LRCK Ratio
CS5343 Supports I²S Audio Format
CS5344 Supports Left-Justified Audio Format
General Description
The CS5343/4 is a complete analog-to-digital converter
for digital audio systems. It performs sampling, analog-
to-digital conversion, and anti-alias filtering, generating
24-bit values for both left and right inputs in serial form
at sample rates up to 108 kHz per channel.
The CS5343/4 uses a 3rd-order, multi-bit Delta-Sigma
modulator followed by a digital filter, which removes the
need for an external anti-alias filter.
The CS5343/4 also features a high-impedance sam-
pling network which eliminates costly external
components such as op-amps.
The CS5343/4 is available in a 10-pin TSSOP package
for both Commercial (-40° to +85° C) and Automotive
grades (-40° to +105° C). The CDB5343 Customer
Demonstration Board is also available for device evalu-
ation and implementation suggestions. Please refer to
the
“Ordering Information” on page 19
for complete
details.
The CS5343/4 is ideal for audio systems requiring wide
dynamic range, negligible distortion and low noise, such
as set-top boxes, DVD-karaoke players, DVD record-
ers, A/V receivers, and automotive applications.
VA
3.3 V to 5 V
Single-Ended
Analog Input
AINL
High-Z
Sampling
Network
High-Pass
Filter
Low-Latency
Digital Filters
Auto-detect
MCLK Divider
Master
Clock
VQ
Internal
Reference
Voltages
Serial Port
FILT+
Slave Mode
Auto-detect
SCLK
LRCK
Single-Ended
Analog Input
AINR
High-Z
Sampling
Network
High-Pass
Filter
Low-Latency
Digital Filters
SDOUT
http://www.cirrus.com
Copyright
Cirrus Logic, Inc. 2006–2015
(All Rights Reserved)
MAR '15
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TABLE OF CONTENTS
CS5343/4
1. PIN DESCRIPTIONS .............................................................................................................................. 3
2. CHARACTERISTICS AND SPECIFICATIONS ...................................................................................... 4
RECOMMENDED OPERATING CONDITIONS ..................................................................................... 4
ABSOLUTE MAXIMUM RATINGS ......................................................................................................... 4
ANALOG CHARACTERISTICS - COMMERCIAL GRADE (-CZZ) ......................................................... 5
ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE (-DZZ) ......................................................... 6
DIGITAL FILTER CHARACTERISTICS ................................................................................................ 7
DC ELECTRICAL CHARACTERISTICS ................................................................................................ 7
DIGITAL CHARACTERISTICS ............................................................................................................... 8
SYSTEM CLOCKING AND SERIAL AUDIO INTERFACE ..................................................................... 9
3. TYPICAL CONNECTION DIAGRAM ................................................................................................... 11
4. APPLICATIONS ................................................................................................................................... 12
4.1 Operation as Clock Master or Slave ............................................................................................... 12
4.1.1 Slave Mode Operation ........................................................................................................... 12
4.1.2 Master Mode Operation ......................................................................................................... 13
4.1.2.1 Master Mode Speed Selection ................................................................................... 13
4.1.3 Master Clock ......................................................................................................................... 13
4.2 Serial Audio Interface ..................................................................................................................... 14
4.3 Digital Interface ............................................................................................................................... 14
4.4 Analog Connections ....................................................................................................................... 14
4.4.1 Component Values ................................................................................................................ 15
4.5 Grounding and Power Supply Decoupling ...................................................................................... 15
4.6 Synchronization of Multiple Devices ............................................................................................... 16
5. FILTER PLOTS - ALL SPEED MODES ............................................................................................... 16
6. PARAMETER DEFINITIONS ................................................................................................................ 17
7. PACKAGE DIMENSIONS .................................................................................................................... 18
THERMAL CHARACTERISTICS .......................................................................................................... 18
8. ORDERING INFORMATION ................................................................................................................ 19
9. REVISION HISTORY ............................................................................................................................ 20
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1. PIN DESCRIPTIONS
SDOUT
SCLK
LRCK
MCLK
FILT+
CS5343/4
1
2
3
4
5
10
9
8
7
6
VA
GND
AINR
VQ
AINL
Pin Name Pin #
SDOUT
SCLK
LRCK
MCLK
FILT+
AINL
AINR
VQ
GND
VA
1
2
3
4
5
6
8
7
9
10
Pin Description
Serial Audio Data Output
(Output) - Output for two’s complement serial audio data. Also selects Master
or Slave Mode; See
Section 4.1 on page 12
for details.
Serial Clock
(Input/Output) - Serial clock for the serial audio interface.
Left Right Clock
(Input/Output) - Determines which channel, Left or Right, is currently active on the
serial audio data line.
Master Clock
(Input) - Clock source for the delta-sigma modulator and digital filters.
Positive Voltage Reference
(Output)
-
Positive reference voltage for the internal sampling circuits.
Analog Input
(Input) - The full-scale analog input level is specified in the Analog Characteristics specifi-
cation table.
Quiescent Voltage
(Output)
-
Filter connection for the internal quiescent reference voltage.
Ground
(Input) - Ground reference. Must be connected to analog ground.
Power
(Input)
-
Positive power supply for the digital and analog sections.
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2. CHARACTERISTICS AND SPECIFICATIONS
RECOMMENDED OPERATING CONDITIONS
GND = 0 V, all voltages with respect to GND.
Parameter
Power Supplies
Ambient Operating Temperature
Commercial (-CZZ)
Automotive (-DZZ)
CS5343/4
Symbol
VA
T
AC
T
AD
Min
3.1
4.75
-40
-40
Typ
3.3
5.0
-
-
Max
3.5
5.25
85
105
Unit
V
V
°C
°C
ABSOLUTE MAXIMUM RATINGS
GND = 0 V, all voltages with respect to GND.
(Note 1)
Parameter
DC Power Supplies
Input Current
Input Voltage
Ambient Operating Temperature (Power Applied)
Storage Temperature
(Note 2)
(Note 3)
Symbol
VA
I
in
V
IN
T
A
T
stg
Min
-0.3
-10
-0.7
-50
-65
Max
+6.0
10
VA+0.7
+115
+150
Unit
V
mA
V
C
C
Notes:
1. Operation beyond these limits may result in permanent damage to the device. Normal operation is not
guaranteed at these extremes.
2. Any pin except supplies. Transient currents of up to ±100 mA on the analog input pins will not cause
SCR latch-up.
3. The maximum over/under voltage is limited by the input current.
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ANALOG CHARACTERISTICS - COMMERCIAL GRADE (-CZZ)
CS5343/4
Test conditions (unless otherwise specified): T
A
= 25C; Input test signal is a 997 Hz sine wave through recom-
mended inputs as seen in
Figure 6 on page 14;
source impedance less than or equal to 2.5 k; valid with FILT+
and VQ components as shown in
Figure 3 on page 11;
measurement bandwidth is 10 Hz to 20 kHz; Fs = 48 kHz
or 96 kHz.
Dynamic Performance for Commercial Grade
Symbol
Dynamic Range
Total Harmonic Distortion + Noise
A-weighted
unweighted
(Note 4)
-1 dB
THD+N
-20 dB
-60 dB
Min
91
88
-
-
-
Min
Interchannel Isolation
-
-
-3
-
VA = 3.3 V nom
VA = 5 V nom
0.560*VA
0.552*VA
-
VA = 3.3 V
Typ
94
91
-89
-71
-31
Max
-
-
-86
-
-
Typ
90
-
-
Min
95
92
-
-
-
VA = 5.0 V
Typ
98
95
-92
-75
-35
Max
-
0.1
+3
-
0.575*VA
0.567*VA
-
Max
-
-
-89
-
-
Unit
dB
dB
dB
dB
dB
Unit
dB
dB
%
ppm/°C
Vpp
Vpp
M
Dynamic Performance for Commercial Grade
VA = 3.3 V and VA = 5.0 V
DC Accuracy
Interchannel Gain Mismatch
Gain Error
Gain Drift
100
0.568*VA
0.559*VA
7.5
Analog Input Characteristics
Full-scale Input Voltage
Full-scale Input Voltage
Input Impedance
Notes:
4. Referred to the typical full-scale input voltage
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