Cirrus Logic CS4339 User Manual

LRCK

3

SDATA

1

DEM/SCLK

2

MCLK

4

VA

AOUTL

8

AOUTR

5

Serial Input

Interface

Interpolator

Interpolator

De-emphasis

Modulator



Modulator

DAC

DAC

Voltage Reference

Analog

Low-Pass

Filter

Analog

Low-Pass

Filter

7

AGND

6



Confidential Draft

1/18/12

CS4334/5/8/9

8-Pin, 24-Bit, 96 kHz Stereo D/A Converter

Features

 Complete Stereo DAC System: Interpolation,

D/A, Output Analog Filtering

 24-Bit Conversion
 96 dB Dynamic Range
 -88 dB THD+N
 Low Clock-Jitter Sensitivity
 Single +5 V Power Supply
 Filtered Line-Level Outputs
 On-Chip Digital De-emphasis
 Popguard
 Functionally Compatible with CS4330/31/33

®

Technology

Description

The CS4334 family members are complete, stereo dig­ital-to-analog output systems including interpolation,
1-bit D/A conversion and output analog filtering in an
8-pin package. The CS4334/5/8/9 support all major au­dio data interface formats, and the individual devices
differ only in the supported interface format.

The CS4334 family is based on Delta-Sigma modula­tion, where the modulator output controls the reference
voltage input to an ultra-linear analog low-pass filter.
This architecture allows for infinite adjustment of sam­ple rate between 2 kHz and 100 kHz simply by
changing the master clock frequency.

The CS4334 family contains on-chip digital de-empha­sis, operates from a single +5V power supply, and
requires minimal support circuitry. These features are
ideal for set-top boxes, DVD players, SVCD players,
and A/V receivers.

ORDERING INFORMATION

See “Ordering Information” on page 24

http://www.cirrus.com

Copyright  Cirrus Logic, Inc. 2012

(All Rights Reserved)

JANUARY '12

DS248F6

TABLE OF CONTENTS

1. TYPICAL CONNECTION DIAGRAM ........... .... ... ... ... .......................................... .... ... ... ... ... .... .............. 4

2. CHARACTERISTICS AND SPECIFICATIONS ..................................................................................... 5

SPECIFIED OPERATING CONDITIONS.............................................................................................. 5

ABSOLUTE MAXIMUM RATINGS........................................................................................................5

ANALOG CHARACTERISTICS............................................................................................................. 6

POWER AND THERMAL CHARACTERISTICS ................................................................................... 8

DIGITAL INPUT CHARACTERISTICS.......................................................................... ... ... .... ... ... ... .... . 9

SWITCHING CHARACTERISTICS............................................... ... ... ... .... ......................................... 10

3. GENERAL DESCRIPTION ................................................................................................................. 12

3.1 Digital Interpolation Filter .............................................................................................................. 12

3.2 Delta-Sigma Modulator ................................................................................................................. 12

3.3 Switched-Capacitor DAC .............................................................................................................. 12

3.4 Analog Low-Pass Filter ................................................................................................................. 12

4. SYSTEM DESIGN ............................................................................................................................... 13

4.1 Master Clock ................................................................................................................................. 13

4.2 Serial Clock .................................................................................................................................. 13

4.2.1 External Serial Clock Mode ................................................................................................. 13

4.2.2 Internal Serial Clock Mode .. ... ... ... .... ................................................................................... 13

4.3 De-Emphasis ................................................................................................................................ 14

4.4 Initialization and Power-Down ...................................................................................................... 14

4.5 Output Transient Control .............................................................................................................. 14

4.6 Grounding and Power Supply Decoupling .................................................................................... 15

4.7 Analog Output and Filtering .......................................................................................................... 15

4.8 Overall Base-Rate Frequency Response ..................................................................................... 18

4.9 Overall High-Rate Frequency Response ......................................................................................19

4.10 Base Rate Mode Performance Plots .................................... ... ... .......................................... ... ...20

4.11 High Rate Mode Performance Plots ........................................................................... .... ... ... ... ... 21

5. PARAMETER DEFINITIONS ............................................................................................................... 22

6. REFERENCES ..................................................................................................................................... 22

7. PACKAGE DIMENSIONS ................................................................................................................... 23

8. ORDERING INFORMATION .................. ... ... .... ... ... ... .... ... ... ... .......................................... ... .... ............ 24

9. FUNCTIONAL COMPATIBILITY ...................... ... ... ... .... .......................................... ... ... ... ... .... ... ......... 24

10. REVISION HISTORY ......................................................................................................................... 25

CS4334/5/8/9

LIST OF FIGURES

Figure 1. Recommended Connection Diagram.........................................................................................4

Figure 2. Output Test Load..................................................... ... .... ......................................... .................. 8

Figure 3. Maximum Loading....................... ... ... .... ... ... ... .... ... ... ... .... ... ... ... .................................................. 9

Figure 4. Power vs. Sample Rate ............................................................................................................. 9

Figure 5. External Serial Mode Input Timing........................................................................................... 11

Figure 6. Internal Serial Mode Input Timing............................................................................................ 11

Figure 7. Internal Serial Clock Generation............................................................................................. 11

Figure 8. System Block Diagram................... ... .... ... ... ... .... ... ... ... .... ......................................... .... ............ 12

Figure 9. De-Emphasis Curve (Fs = 44.1kHz)........................................................................................ 14

Figure 10. CS4334 Data Format (I²S)............. ... .... ... ... ... .... ... ... ... .......................................... ... .... ............ 15

Figure 11. CS4335 Data Format............ ... ... ... ... .... ... .......................................... ... ... .... ... ... ... ... ................ 15

Figure 12. CS4338 Data Format............ ... ... ... ... .... ... .......................................... ... ... .... ... ... ... ... ................ 16

Figure 13. CS4339 Data Format............ ... ... ... ... .... ... .......................................... ... ... .... ... ... ... ... ................ 16

Figure 14. CS4334/5/8/9 Initialization and Power-Down Sequence ...................................... ... .... ... ... ... ... 17

Figure 15. Stopband Rejection..................................................................... .... ... ... ... .... ... ......................... 18

Figure 16. Transition Band.............................................. .... ... ... ... .... ... ... ... ... .... ... ... ................................... 18

Figure 17. Transition Band.............................................. .... ... ... ... .... ... ... ... ... .... ... ... ................................... 18

2

Figure 18. Passband Ripple............................................ .... ... .......................................... ... ... ................... 18

SERIAL DATA INPUT SDATA AOUTL ANALOG LEFT CHANNEL OUTPUT

DE-EMPHASIS / SCLK DEM/SCLK VA ANALOG POWER

LEFT / RIGHT CLOCK LRCK AGND ANALOG GROUND

MASTER CLOCK MCLK AOUTR ANALOG RIGHT CHANNEL OUTPUT

72
63
54

81

Figure 19. Stopband Rejection..................................................................... .... ... ... ... .... ... ......................... 19

Figure 20. Transition Band.............................................. .... ... ... ... .... ... ... ... ... .... ... ... ................................... 19

Figure 21. Transition Band.............................................. .... ... ... ... .... ... ... ... ... .... ... ... ................................... 19

Figure 22. Passband Ripple............................................ .... ... .......................................... ... ... ................... 19

Figure 23. 0 dBFS FFT (BRM) .................................................................................................................. 20

Figure 24. -60 dBFS FFT (BRM)........... ... ... ... ... ....................................................................................... 20

Figure 25. Idle Channel Noise FFT (BRM)....................................... ... ... ... ... .... ... ... ... .... ... ... ... ... .... ... ......... 20

Figure 26. Twin Tone IMD FFT (BRM)...................................................................................................... 20

Figure 27. THD+N vs. Amplitude (BRM)...................... ... .... ... ... ... .... ... ... ... ... ............................................. 20

Figure 28. THD+N vs. Frequency (BRM).................. ... ... .... ... .......................................... ... ... ... .... ... ... ...... 20

Figure 29. 0 dBFS FFT (HRM).................................................................................................................. 21

Figure 30. -60 dBFS FFT (HRM) . ... ....... ... ... ... ... ....................................................................................... 21

Figure 31. Idle Channel Noise FFT (HRM) ......................................... ... ... ... .... ... ... ... .... ... ... ... ... .... ... ......... 21

Figure 32. Twin Tone IMD FFT (HRM) ..................................................................................................... 21

Figure 33. THD+N vs. Amplitude (HRM)...... ... ... .... ... ... ... .... .......................................... ... ... ... ... .... ... ......... 21

Figure 34. THD+N vs. Frequency (HRM)........ ... .... ... ... ... .... ... ... ... .... ......................................... .... ... ......... 21

LIST OF TABLES

Table 1. Common Clock Frequencies ............................ .......................................... ................................ 13

PIN DESCRIPTIONS

CS4334/5/8/9

No. Pin Name I/O Pin Function and Description

Serial Audio Data Input - Two’s complement MSB-first serial data is input on this pin. The data is

1SDATAI

2DEM/SCLKI

3 LRCK I

4MCLKI
5AOUTROAnalog Right Channel Output - Typically 3.5 Vp-p for a full-scale input signal.

6AGNDIAnalog Ground - Analog ground reference is 0V.
7VAIAnalog Power - Analog power supply is nominally +5 V.
8AOUTLOAnalog Left Channel Output - Typically 3.5 Vp-p for a full-scale input signal.

clocked into the CS4334/5/8/9 via internal or external SCLK, and the channel is determined by
LRCK.
De-Emphasis/External Serial Clock Input - Used for de-emphasis filter control or external serial
clock input.
Left/Right Clock - Determines which channel is currently being input on the Audio Serial Data
Input pin, SDATA.
Master Clock - Frequency must be 256x, 384x, or 512x the input sample rate in BRM and either
128x or 192x the input sample rate in HRM.

3

1. TYPICAL CONNECTION DIAGRAM

DEM/SCLK

6

Audio

Data

Processor

External C lock

MCLK

AGND

AOUTR

CS4334
CS4335
CS4338
CS4339

SDATA

LRCK

VA

AOUTL

3

1

2

4

7

0.1 µF

+

1µF

8

Left Audio

Output

5

Right Audio

Output

+5V

3.3 µF

10 k



C

560



+

R+560

C=

4



Fs(R 560)

R

L

3.3 µF

10 k



C

560



+

267 k

R

L

L

L



267 k



Figure 1. Recommended Connection Diagram

CS4334/5/8/9

4

CS4334/5/8/9

2. CHARACTERISTICS AND SPECIFICATIONS

(All Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical
performance characteristics and spe cif icat ion s ar e de riv e d from measurements taken at nominal supply voltages
and T

= 25C.)

A

SPECIFIED OPERATING CONDITIONS

(AGND = 0V; all voltages with respect to ground.)

Parameters Symbol Min Nom Max Units

DC Power Supply VA 4.75 5.0 5.5 V
Ambient Operating Temperature (Power Applied) -KSZ, -KSZR

-DSZ, -DSZR

T

A

-10

-40

-

-

+70
+85

C
C

ABSOLUTE MAXIMUM RATINGS

(AGND = 0V; all voltages with respect to ground.)

Parameters Symbol Min Max Units

DC Power Supply VA -0.3 6.0 V
Input Current, Any Pin Except Supplies I
Digital Input Voltage V
Ambient Operating Temperature (power applied) T
Storage Temperature T

in

IND

A

stg

WARNING:Operation at or beyond these limits may result in permanent damage to the device. Normal operation

is not guaranteed at these extremes.

-±10mA

-0.3 VA+0.4 V

-55 125 °C

-65 150 °C

5

CS4334/5/8/9

ANALOG CHARACTERISTICS

(Full-Scale Output Sine Wave, 997 Hz; Test load RL = 10 k, CL = 10 pF (see Figure 2). Fs for Base-Rate Mode =
48 kHz, Measurement Bandwidth 10 Hz to 20 kHz, unless otherwise specified; Fs for High-Rate Mode = 96 kHz,

Measurement Bandwidth 10 Hz to 40 kHz, unless otherwise specified.)

Base-Rate Mode High-Rate Mode

Parameter

Dynamic Performance for CS4334/5/8/9-KSZ, -KZSR

Dynamic Range (Note 1)

18 to 24-Bit

unweighted

A-Weighted

16-Bit unweighted

A-Weighted

Total Harmonic Distortion + Noise (Note 1)

18 to 24-Bit 0 dB

-20 dB

-60 dB

16-Bit 0 dB

-20 dB

-60 dB

Interchannel Isolation (1 kHz) - 94 - - 95 - dB

Dynamic Performance for CS4334/5/8/9-DSZ, -DSZR

Dynamic Range (Note 1)

18 to 24-Bit

unweighted

A-Weighted

16-Bit unweighted

A-Weighted

Total Harmonic Distortion + Noise (Note 1)

18 to 24-Bit 0 dB

-20 dB

-60 dB

16-Bit 0 dB

-20 dB

-60 dB

Interchannel Isolation (1 kHz) - 94 - - 95 - dB

Symbol Min Typ Max Min Typ Max Unit

88
91
86
89

THD+N

-

-

-

-

-

-

85
88
83
86

THD+N

-

-

-

-

-

-

93
96
91
94

-88

-73

-33

-86

-71

-31

93
96
91
94

-88

-73

-33

-86

-71

-31

-83

-68

-28

-81

-66

-26

-82

-65

-25

-70

-63

-23

-

-

-

-

-

-

-

-

91
89

88
86

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

90
96
88
94

-88

-70

-30

-86

-68

-28

90
96
88
94

-88

-70

-30

-86

-68

-28

-83

-65

-25

-81

-63

-23

-82

-62

-22

-80

-60

-20

-

dB

-

dB

-

dB

-

dB

dB
dB
dB
dB
dB
dB

-

dB

-

dB

-

dB

-

dB

dB
dB
dB
dB
dB
dB

Notes:

6

1. One LSB of triangular PDF dither added to data.

CS4334/5/8/9

ANALOG CHARACTERISTICS (Continued)

Base-Rate Mode High-Rate Mode

Parameter

Combined Digital and On-chip Anal o g Fi lt er R es p ons e

Passband (Note 3)

to -0.05 dB corner

to -0.1 dB corner

to -3 dB corner
Frequency Response 10 Hz to 20 kHz - .01 - +.08 -.05 - +.2 dB
Passband Ripple - - ±.08 - - ±.2 dB
StopBand .5465 - - .5770 - - Fs
StopBand Attenuation (Note 4) 50 - - 55 - - dB
Group Delay tgd - 9/Fs - - 4/Fs - s
Passband Group Delay Deviation 0 - 40 kHz

0 - 20 kHz

De-emphasis Error Fs = 32 kHz

Fs = 44.1 kHz

Fs = 48 kHz

Parameters Symbol Min Typ Max Units

DC Accuracy

Interchannel Gain Mismatch - 0.1 0.4 dB
Gain Error -±5- %
Gain Drift - 100 - ppm/°C

Analog Output

Full Scale Output Voltage 3.25 3.5 3.75 Vpp
Quiescent Voltage V
Max AC-Load Resistance (Note 6) R
Max Load Capacitance (Note 6) C

Symbol Min Typ Max Min Typ Max Unit

(Note 2)

0

-

0

- ±0.36/Fs - --±1.39/Fs

-

-

-

-

-

-

-

-

-

Q

L
L

.4780

-

.4996

+1.5/+0

+.05/-.25

-.2/-.4

-2.2-VDC

-3-k

- 100 - pF

­0
0

-

-

-

±0.23/Fs

(Note 5)

­.4650
.4982

-

-

Fs
Fs
Fs

s
s

dB
dB
dB

Notes:

2. Filter response is not tested but is guaranteed by design.

3. Response is clock dependent and will scale with Fs. Note that the response plots (Figures 15-22) have
been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.

4. For Base-Rate Mode, the Measurement Bandwidth is 0.5465 Fs to 3 Fs.
For High-Rate Mode, the Measurement Bandwidth is 0.577 Fs to 1.4 Fs.

5. De-emphasis is not available in High-Rate Mode.

6. Refer to Figure 3.

7

CS4334/5/8/9

AOUTx

AGND

10 µF

V

out

R

L

C

L

Figure 2. Output Test Load

POWER AND THERMAL CHARACTERISTICS

Parameters Symbol Min Typ Max Units

Power Supplies

Power Supply Current normal operation

power-down state

Power Dissipation (Note 7)

normal operation

power-down
Package Thermal Resistance 
Power Supply Rejection Ratio (1 kHz) PSRR - 79 - dB

Notes:

7. Refer to Figure 4. Max Power Dissipation is measured at VA=5.5V.

I

A

I

A

JA

-

-

-

-

-110-°C/Watt

15
40

75

0.2

19

104

-

mW

-

mW

mA

A

8