Cirrus Logic CS4272 User Manual

CS4272

24-Bit, 192 kHz Stereo Audio CODEC

D/A Features

! High Performance

– 114 dB Dynamic Range – -100 dB THD+N

! Up to 192 kHz Sampling Rates ! Differential Analog Architecture ! Volume Control with Soft Ramp

– 1 dB Step Size – Zero Crossing Click-free Transitions

! Selectable Digital Filters

– Fast and Slow Roll Off

! ATAPI Mixing Functions ! Selectable Serial Audio Interface Formats

– Left Justified up to 24-bit

–I

S up to 24-bit

– Right Justified 16-, 18-, 20-, and 24-Bit

! Control Output for External Muting ! Selectable 50/15 µs De-emphasis

A/D Features

! High Performance

– 114 dB Dynamic Range – -100 dB THD+N

! Up to 192 kHz Sampling Rates ! Differential Analog Architecture ! Multi-bit Delta Sigma Conversion ! High-pass Filter or DC Offset Calibration ! Low-Latency Digital Anti-alias Filtering ! Automatic Dithering of 16-bit Data ! Selectable Serial Audio Interface Formats

– Left Justified up to 24-bit

–I

S up to 24-bit

System Features

! Direct Interface with 5V to 2.5V Logic Levels ! Internal Digital Loopback ! On-chip Oscillator ! Stand-Alone or Control Port Functionality

2.5 V to 5 V

Hardware or

C/SPI

Control Data

Reset

Serial Audio

Input

Serial Audio

Output

Cirrus Logic, Inc.

www.cirrus.com

Configuration

Level TranslatorLevel Translato r

3.3 V to 5 V 5 V

Internal Voltage

Reference

Volume Control

High Pass Filter &

DC Offset Calibration

PCM Serial Interface / Loopback

High Pass Filter &

DC Offset Calibration

Selectable

Interpolation

Filter

Mixer

Selectable

Interpolation

Filter

∆Σ Modulator

Low-Latency

Anti-Alias Filter

Low-Latency

Anti-Alias Filter

Internal

Oscillator

External

Mute Control

Switched Capacitor

DAC and Filter

Switched Capacitor

DAC and Filter

Multibit

Oversampling

ADC

Multibit

Oversampling

ADC

Left and Right Mute Controls

Left Differential Output

Right Differential Output

Left Differential Input

Right Differential Input

AUGUST '05

DS593F1

CS4272

Stand-Alone Mode Feature Set

! System Features

– Serial Audio Port Master or Slave Operation – Internal Oscillator for Master Clock

D/A Features

– Auto-mute on Static Samples – 44.1 kHz 50/15 µs De-emphasis Available – Selectable Serial Audio Interface Formats

"Left Justified up to 24-bit

S up to 24-bit

A/D Features

– Automatic Dithering for 16-bit Data – High-pass Filter – Selectable Serial Audio Interface Formats

"Left Justified up to 24-bit

S up to 24-bit

Software Mode Feature Set

! System Features

– Serial Audio Port Master or Slave Operation – Internal Oscillator for Master Clock – Internal Digital Loopback Available

D/A Features

– Selectable Auto-mute – Selectable Interpolation Filters – Selectable 32-, 44.1-, and 48-kHz De-emphasis

Filters – Configurable ATAPI Mixing Functions – Configurable Volume and Muting Controls – Selectable Serial Audio Interface Formats

"Left Justified up to 24-bit

S up to 24-bit

"Right Justified 16, 18, 20, and 24-bit

A/D Features

– Selectable Dithering for 16-bit Data – Selectable High-pass Filter or DC Offset Calibration – Selectable Serial Audio Interface Formats

"Left Justified up to 24-bit

S up to 24-bit

General Description

The CS4272 is a high-performance, integrated audio CODEC. The CS4272 performs stereo analog-to-digita l (A/D) and digital-to-analog (D/A) conversion of up to 24-bit serial values at sample rates up to 192 kHz.

The D/A offers a volume control that operates with a 1 dB step size. It incorporates selectable soft ramp and zero crossing transition functions to eliminate clicks and pops.

The D/A’s integrated digital mixing functions allow a variety of output configurations ranging from a channel swap to a stereo-to-mono downmix.

Standard 50/15 µs de-emphasis is available for sampling rates of 32, 44.1, and 48 kHz for compatibility with digital audio programs mastered using the 50/15 µs preemphasis technique.

Integrated level translators allow easy interfacing between the CS4272 and other devices operating over a wide range of logic levels.

An on-chip oscillator eliminates the need for an external crystal oscillator circuit. This can reduce overall design cost and conserve circuit board space. The CS4272 automatically uses the on-chip oscillator in the absence of an applied master clock, making this feature easy to use.

Independently addressable high-pass filters are available for the right and left channel of the A/D. This allows the A/D to be used in a wide variety of applications where one audio channel and one DC measurement channel is desired.

The CS4272’s wide dynamic range, negligible distortion, and low noise make it ideal for applications such as A/V receivers, DVD-R, CD-R, digital mixing consoles, effects processors, set-top box systems, and automotive audio systems.

Ordering Information

Product Description Package Pb-Free Grade Temp Range Container Order #

CS4272

CDB4272 CS4272 Evaluation Board No - - - CDB4272

24-Bit, 192 kHz

Stereo Audio CODEC

28-pin

TSSOP

YES

Commercial -10° to +70° C

Automotive -40° to +85° C

2 DS593F1

Tube CS4272-CZZ

Tape & Reel CS4272-CZZR

Tube CS4272-DZZ

Tape & Reel CS4272-DZZR

TABLE OF CONTENTS

1. PIN DESCRIPTIONS - SOFTWARE MODE ............................................................................. 5

2. PIN DESCRIPTIONS - STAND-ALONE MODE ....................................................................... 7

3. CHARACTERISTICS AND SPECIFICATIONS ........................................................................ 9

SPECIFIED OPERATING CONDITIONS................................................................................. 9

ABSOLUTE MAXIMUM RATINGS........................................................................................... 9

DAC ANALOG CHARACTERISTICS - COMMERCIAL GRADE............................................ 10

DAC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE ............................................ 11

DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE................ 12

ADC ANALOG CHARACTERISTICS - COMMERCIAL GRADE............................................ 14

ADC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE ............................................ 15

ADC DIGITAL FILTER CHARACTERISTICS......................................................................... 16

DC ELECTRICAL CHARACTERISTICS ............................................................. .... ............... 17

DIGITAL CHARACTERISTICS............................................................................................... 17

SWITCHING CHARACTERISTICS - SERIAL AUDIO PORT................................................. 18

SWITCHING CHARACTERISTICS - I²C MODE CONTROL PORT....................................... 21

SWITCHING CHARACTERISTICS - SPI CONTROL PORT ................................................. 22

4. TYPICAL CONNECTION DIAGRAM ..................................................................................... 23

5. APPLICATIONS ..................................................................................................................... 24

5.1 Stand-Alone Mode .............. ... .... ... ... ... ... ....................................... ... .... ... .........................24

5.1.1 Recommended Power-Up Sequence ................................................................. 24

5.1.2 Master/Slave Mode ....... ... ... ... ... .... ... ................................................................... 24

5.1.3 System Clocking .............. ... ....................................... ... ...................................... 24

5.1.3.1 Crystal Applications (XTI/XTO) ........................................................... 24

5.1.3.2 Clock Ratio Selection .......................................................................... 25

5.1.4 16-Bit Auto-Dither ............................................................................................... 26

5.1.5 Auto-Mute ............................................................... ... ... ... ................................... 26

5.1.6 High Pass Filter ................................................................................................... 26

5.1.7 Interpolation Filter .............................................................................................. 26

5.1.8 Mode Selection & De-Emphasis ............................. ... ... ...................................... 26

5.1.9 Serial Audio Interface Format Selection ............................................................. 26

5.2 Control Port Mode .................................................. ... ... ... .... ... ... ... ... .... ............................ 27

5.2.1 Recommended Power-Up Sequence - Access to Control Port Mode ................ 27

5.2.2 Master / Slave Mode Selection ..................... ... ... .... ... ... ...................................... 27

5.2.3 System Clocking .............. ... ....................................... ... ...................................... 27

5.2.3.1 Crystal Applications (XTI/XTO) ........................................................... 27

5.2.3.2 Clock Ratio Selection .......................................................................... 28

5.2.4 Internal Digital Loopback ........................................................... ... ... .... ... ... ... ... ... 30

5.2.5 Dither for 16-Bit Data .......................................................................................... 30

5.2.6 Auto-Mute ............................................................... ... ... ... ................................... 30

5.2.7 High Pass Filter and DC Offset Calibration ......................................................... 30

5.2.8 Interpolation Filter .............................................................................................. 31

5.2.9 De-Emphasis ................................................................ ... ... .... ... ... ...................... 31

5.2.10 Oversampling Modes ........................................................................................ 31

5.3 De-Emphasis Filter .......................................................................................................... 31

5.4 Analog Connections ............................................... ... ... ... .... ... ... ... ................................... 32

5.4.1 Input Connections .. ... ....................................... ... .... ... ...................................... ... 32

5.4.2 Output Connections ......................... ... ... .... ... ....................................... ... ... ... ... ... 33

5.5 Mute Control ....................................... ... .... ...................................... .... ... ... ...................... 34

5.6 Synchronization of Multiple Devices ................................................................................ 34

5.7 Grounding and Power Supply Decoupling ....................................................................... 34

6. CONTROL PORT INTERFACE .............................................................................................. 35

CS4272

DS593F1 3

CS4272

6.1 SPI Mode ............................... .... ... ....................................... ... ... ...................................... 35

6.2 I²C Mode .................................................................... ... ... .... ............................................ 36

7. REGISTER QUICK REFERENCE .......................................................................................... 37

8. REGISTER DESCRIPTION .................................................................................................... 38

8.1 Mode Control 1 - Address 01h ............... .... ... ... ... .... ...................................... .... ... ... ... ... ... 38

8.1.1 Functional Mode (Bits 7:6) ..................................................................................38

8.1.2 Ratio Select (Bits 5:4) ...................................................... ... ................................ 38

8.1.3 Master / Slave Mode (Bit 3) .................... .... ... ... ....................................... ... ... ... ... 38

8.1.4 DAC Digital Interface Format (Bits 2:0) ......................... ...................................... 38

8.2 DAC Control - Address 02h ... ....................................... ... .... ... ... ... ... .... ... ... ... ...................39

8.2.1 Auto-Mute (Bit 7) ..................................................................................... ... ... ... ... 39

8.2.2 Interpolation Filter Select (Bit 6) .......................................................................... 39

8.2.3 De-Emphasis Control (Bits 5:4) .................. ... ... ... .... ... ... ... ................................... 39

8.2.4 Soft Volume Ramp-Up After Error (Bit 3) ............................................................ 40

8.2.5 Soft Ramp-Down Before Filter Mode Change (Bit 2) ..........................................40

8.2.6 Invert Signal Polarity (Bits 1:0) ............................ .... ... ... ... ... .... ... ... ... ...................40

8.3 DAC Volume & Mixing Control - Address 03h .... .... ... ... ... .... ... ... ... ... .... ... ... ... .... ... ... .........40

8.3.1 Channel B Volume = Channel A Volume (Bit 6) ..................... ... ... ... .... ... ... .........40

8.3.2 Soft Ramp or Zero Cross Enable (Bits 5:4) ......................................................... 40

8.3.3 ATAPI Channel Mixing and Muting (Bits 3:0) ......................................................41

8.4 DAC Channel A Volume Control - Address 04h ..............................................................42

8.5 DAC Channel B Volume Control - Address 05h ..............................................................42

8.5.1 Mute (Bit 7) ..........................................................................................................42

8.5.2 Volume Control (Bits 6:0) ................................................. ................................... 42

8.6 ADC Control - Address 06h ... ....................................... ... .... ... ... ... ... .... ... ... ... ...................43

8.6.1 Dither for 16-Bit Data (Bit 5) ................................................................................ 43

8.6.2 ADC Digital Interface Format (Bit 4) ....................................................................43

8.6.3 ADC Channel A & B Mute (Bits 3:2) ........................... ... ... ... .... ... ... ... .... ... ... ... ... ... 43

8.6.4 Channel A & B High Pass Filter Disable (Bits 1:0) ..... ...................................... ... 43

8.7 Mode Control 2 - Address 07h ............... .... ... ... ... .... ... ... ... ....................................... ... ... ... 43

8.7.1 Digital Loopback (Bit 4) ........................................... ... ... ... ... .... ............................ 43

8.7.2 AMUTEC = BMUTEC (Bit 3) ............................................................................... 43

8.7.3 Freeze (Bit 2) ............................................................. ... ... ... .... ............................ 44

8.7.4 Control Port Enable (Bit 1) ............... ................................................................... 44

8.7.5 Power Down (Bit 0) .............................................................................................44

8.8 Chip ID - Register 08h .....................................................................................................44

8.8.1 Chip ID (Bits 7:4) .................................................................................................44

8.8.2 Chip Revision (Bits 3:0) .......................................................................................44

9. PARAMETER DEFINITIONS .................................................................................................. 45

10. PACKAGE DIMENSIONS ..................................................................................................... 46

11. APPENDIX ............................................... ... .... ... ... ... ....................................... ... .... ... ............47

4 DS593F1

1. PIN DESCRIPTIONS - SOFTWARE MODE

CS4272

XTO BMUTEC

XTI AOUTB-

MCLK AOUTB+

LRCK AOUTA+ SCLK AOUTA-

SDOUT AMUTEC

SDIN FILT+

DGND AGND

VD VA

VL AINB-

SCL/CCLK AINB+

SDA/CDIN AINA+

AD0/CS AINA-

RST VCOM

1 2 3 4 5 6 7 821 9 10 11 12 17 13 14 15

28-Pin TSSOP

28 27 26 25 24 23 22

20 19 18

DS593F1 5

Pin Name # Pin Description

XTO XTI

MCLK

LRCK

SCLK SDOUT SDIN DGND VD VL SCL/CCLK

SDA/CDIN

AD0/CS

Crystal Connections (Input/Output) - I/O pins for an external crystal which may be used to generate

1,2

MCLK. See “Crystal Applications (XTI/XTO)” on page 24 or “Crystal Applications (XTI/XTO)” on page 27. Master Clock (Input/Output) -Clock source for the delta-sigma modulators. See “Crystal Applications

(XTI/XTO)” on page 24 or “Crystal Applications (XTI/XTO)” on page 27. Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the

serial audio data line. Serial Clock (Input/Output) - Serial clock for the serial audio interface.

Serial Audio Data Output (Output) - Output for two’s complement serial audio data.

Serial Audio Data Input (Input) - Input for two’s complement serial audio data.

Digital Ground (Input) - Ground reference for the internal digital section.

Digital Power (Input) - Positive power for the internal digital section.

Logic Power (Input) - Positive power for the digital input/output interface.

Serial Control Port Clock (Input) - Serial clock for the serial control port.

Serial Control Data (Input/Output) - SDA is a data I/O in I²C mode. CDIN is the input data line for the

control port interface in SPI mode. Address Bit 0 (I²C) / Control Port Chip Select (SPI) (Input) - AD0 is a chip address pin in I²C mode; CS

is the chip select signal for SPI format.

CS4272

RST VCOM

AINAAINA+ AINB+ AINB-

VA AGND FILT+

AMUTEC

AOUTAAOUTA+ AOUTB+ AOUTB-

BMUTEC

Reset (Input) - The device enters a low power mode when this pin is driven low.

Common Mode Voltage (Output) - Filter connection for internal common mode voltage.

16, 17,

Differential Analog Input (Input) - The full scale differential input signals are presented to the deltasigma modulators. The full scale level is specified in the ADC Analog Characteristics specification table.

18,

Analog Power (Input) - Positive power for the internal analog section.

Analog Ground (Input) - Ground reference for the internal analog section.

Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.

Channel A Mute Control (Output) - This pin is active during power-up initialization, reset, muting, when

master clock to left/right clock frequency ratio is incorrect, or power-down.

24, 25,

Differential Analog Audio Output (Output) - The full scale differential output level is specified in the DAC Analog Characteristics specification table.

26,

Channel B Mute Control (Output) - This pin is active during power-up initialization, reset, muting, when

master clock to left/right clock frequency ratio is incorrect, or power-down.

6 DS593F1

2. PIN DESCRIPTIONS - STAND-ALONE MODE

CS4272

XTO BMUTEC

XTI AOUTB-

MCLK AOUTB+

LRCK AOUTA+ SCLK AOUTA-

SDOUT (M/S)AMUTEC

SDIN FILT+

DGND AGND

VD VA

VL AINBM0 AINB+ M1 AINA+

I2S/LJ AINA-

RST VCOM

1 2 3 4 5 6 7 821 9 10 11 12 17 13 14 15

28-Pin TSSOP

28 27 26 25 24 23 22

20 19 18

DS593F1 7

Pin Name # Pin Description

XTO XTI

MCLK

LRCK

SCLK SDOUT

(M/S

) SDIN DGND VD VL

Crystal Connections (Input/Output) - I/O pins for an external crystal which may be used to generate the

master clock. See “Crystal Applications (XTI/XTO)” on page 24 or “Crystal Applications (XTI/XTO)” on

1,2

page 27. Master Clock (Input/Output) -Clock source for the delta-sigma modulators. See “Crystal Applications

(XTI/XTO)” on page 24 or “Crystal Applications (XTI/XTO)” on page 27. Left Right Clock (Input/Output) - Determines which channel, Left or Right, is currently active on the

serial audio data line. Serial Clock (Input/Output) - Serial clock for the serial audio interface.

Serial Audio Data Output (Output) - Output for two’s complement serial audio data. This pin must be

pulled-up or pulled-down to select Master or Slave Mode. See “Master/Slave Mode” on page 24. Serial Audio Data Input (Input) - Input for two’s complement serial audio data.

Digital Ground (Input) - Ground reference for the internal digital section.

Digital Power (Input) - Positive power for the internal digital section.

Logic Power (Input) - Positive power for the digital input/output interface.

Mode Select 0 (Input) - In conjunction with M1, selects operating mode. Functionality is described in the

Hardware Mode Speed Configuration table. Mode Select 1 (Input) - In conjunction with M0, selects operating mode. Functionality is described in the

Hardware Mode Speed Configuration table.

CS4272

I2S/LJ

RST VCOM

AINAAINA+ AINB+ AINB-

VA AGND FILT+

AMUTEC

AOUTAAOUTA+ AOUTB+ AOUTB-

BMUTEC

Serial Audio Interface Select (Input) - Selects either the left-justified or I2S format for the Serial Audio

Interface. Reset (Input) - The device enters a low power mode when this pin is driven low.

Common Mode Voltage (Output) - Filter connection for internal common mode voltage.

16, 17,

18,

Analog Power (Input) - Positive power for the internal analog section.

Analog Ground (Input) - Ground reference for the internal analog section.

Positive Voltage Reference (Output) - Positive reference voltage for the internal sampling circuits.

Channel A Mute Control (Output) - This pin is active during power-up initialization, reset, muting, when

master clock to left/right clock frequency ratio is incorrect, or power-down.

24, 25,

Differential Analog Audio Output (Output) - The full scale differential output level is specified in the Analog Characteristics specification table.

26,

Channel B Mute Control (Output) - This pin is active during power-up initialization, reset, muting, when

master clock to left/right clock frequency ratio is incorrect, or power-down.

8 DS593F1

CS4272

3. CHARACTERISTICS AND SPECIFICATIONS

(All Min/Max characteristics and specifications are guaranteed over the Specified Operating Conditions. Typical performance characteristics and specifications are derived from measurements taken at nominal supply voltages and T

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

ABSOLUTE MAXIMUM RATINGS (GND = 0 V, All voltages with respect to ground.) (Note 1)

= 25°C.)

Parameters Symbol Min Nom Max Units

DC Power Supplies: Positive Analog

Positive Digital

Positive Logic

Ambient Operating Temperature (Power Applied)

Commercial Grade

Automotive Grade

Parameter Symbol Min Typ Max Units

DC Power Supplies: Analog

Logic

Digital Input Current (Note 2) I Analog Input Voltage V Digital Input Voltage V Ambient Operating Temperature (Power Applied) T Storage Temperature T

VA VD VL

VA VL VD

IND

stg

4.75

3.1

2.37

-10

-40

-0.3

GND-0.3 - VA+0.3 V

-0.3 - VL+0.3 V

-50 - +95 °C

-65 - +150 °C

5.0

3.3

--±10 mA

5.25

+70 +85

+6.0 +6.0 +6.0

V V V

°C °C

V V V

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.

DS593F1 9

CS4272

DAC ANALOG CHARACTERISTICS - COMMERCIAL GRADE (Notes 3 to 7)

Parameter Symbol Min Typ Max Unit

Dynamic Performance

Dynamic Range 24-Bit s A-Weighted

unweighted

16-Bits unweighted

Total Harmonic Distortion + Noise 0 dB

THD+N -

-20 dB

-60 dB Idle Channel Noise / Signal-to-Noise Ratio - 114 - dB Interchannel Isolation (1 kHz) - 100 - dB

DC Accuracy

Interchannel Gain Mismatch ICGM - 0.1 - dB Gain Drift - 100 - ppm/°C

Analog Output Characteristics and Specifications

Full Scale Differential Output Voltage V Output Resistance (note 7) Z Minimum AC-Load Resistance R Maximum Load Capacitance C

0.91xVA 0.96xVA 1.01xVA Vpp

out

L L

108 105

114 111

-100

-91

-51

-94

-45

- 100 - Ω

-3-kΩ

- 100 - pF

dB dB dB

Notes: 3. One-half LSB of Triangular PDF dither is added to data.

4. Performance measur ements ta ken with a full-scale 997 Hz sine wave under Test load R 10 pF

5. Measurement bandwidth is 10 Hz to 20 kHz.

6. Logic “0” = GND = 0V; Logic “1” = VL; VL = VA unless otherwise noted.

7. V

is tested under load RL but does not include attenuation due to Z

OUT

= 3 kΩ, CL =

10 DS593F1

CS4272

DAC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE (Notes 3 to 7)

Parameter Symbol Min Typ Max Unit

Dynamic Performance

Dynamic Range 24-Bit s A-Weighted

unweighted

16-Bits unweighted

Total Harmonic Distortion + Noise 0 dB

-20 dB

-60 dB Idle Channel Noise / Signal-to-Noise Ratio - 114 - dB Interchannel Isolation (1 kHz) - 100 - dB

DC Accuracy

Interchannel Gain Mismatch ICGM - 0.1 - dB Gain Drift - 100 - ppm/°C

Analog Output Characteristics and Specifications

Full Scale Differential Output Voltage V Output Resistance (note 7) Z Minimum AC-Load Resistance R Maximum Load Capacitance C

THD+N -

0.91xVA 0.96xVA 1.01xVA Vpp

out

L L

106 103

- 100 - Ω

-3-kΩ

- 100 - pF

114 111

-100

-91

-51

-92

-43

dB dB dB

DS593F1 11

CS4272

DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE

(Note 12)

Fast Roll-Off

Parameter

Single Speed Mode - 48 kHz

Passband (Note 9) to -0.01 dB corner

to -3 dB corner Frequency Response 10 Hz to 20 kHz -0.01 - +0.01 dB StopBand .547 - - Fs StopBand Attenuation (Note 10) 90 - - dB Group Delay - 12/Fs - s De-emphasis Error (Note 11) Fs = 32 kHz

(Relative to 1kHz) Fs = 44.1 kHz

Fs = 48 kHz

Double Speed Mode - 96 kHz

Passband (Note 9) to -0.01 dB corner

to -3 dB corner Frequency Response 10 Hz to 20 kHz -0.01 - 0.01 dB StopBand .583 - - Fs StopBand Attenuation (Note 10) 80 - - dB Group Delay - 4.6/Fs - s

Quad Speed Mode - 192 kHz

Passband (Note 9) to -0.01 dB corner

to -3 dB corner Frequency Response 10 Hz to 20 kHz -0.01 - 0.01 dB StopBand .635 - - Fs StopBand Attenuation (Note 10) 90 - - dB Group Delay - 4.7/Fs - s

0 0

.454 .499

±0.23 ±0.14 ±0.09

.430 .499

.105 .490

UnitMin Typ Max

Fs Fs

dB dB dB

Fs Fs

12 DS593F1

CS4272

DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE

(cont) (Note 12)

Slow Roll-Off (Note 8)

Parameter

Single Speed Mode - 48 kHz

Passband (Note 9) to -0.01 dB corner

to -3 dB corner Frequency Response 10 Hz to 20 kHz -0.01 - +0.01 dB StopBand .583 - - Fs StopBand Attenuation (Note 10) 64 - - dB Group Delay - 6.5/Fs - s De-emphasis Error (Note 11) Fs = 32 kHz

(Relative to 1 kHz) Fs = 44.1 kHz

Fs = 48 kHz

Double Speed Mode - 96 kHz

Passband (Note 9) to -0.01 dB corner

to -3 dB corner Frequency Response 10 Hz to 20 kHz -0.01 - 0.01 dB StopBand .792 - - Fs StopBand Attenuation (Note 10) 70 - - dB Group Delay - 3.9/Fs - s

Quad Speed Mode - 192 kHz

Passband (Note 9) to -0.01 dB corner

to -3 dB corner Frequency Response 10 Hz to 20 kHz -0.01 - 0.01 dB StopBand .868 - - Fs StopBand Attenuation (Note 10) 75 - - dB Group Delay - 4.2/Fs - s

Notes: 8. Slow Roll-Off interpolation filter is only available in control port mode.

9. Response is clock dependent and will scale with Fs. Note that the response plots (Figures21 to 44) have been normalized to Fs and can be de-normalized by multiplying the X-axis scale by Fs.

10. Single and Double Speed Mode Measurement Bandwidth is from stopband to 3 Fs. Quad Speed Mode Measurement Bandwidth is from stopband to 1.34 Fs.

11. De-emphasis is available only in Single Speed Mode; Only 44.1 kHz De-emphasis is available in StandAlone Mode.

12. Plots of this data are contained in the “Appendix” on pag e 47. See Figure 21 through Figure 44.

0 0

0.417

0.499

±0.23 ±0.14 ±0.09

.296 .499

.104 .481

UnitMin Typ Max

Fs Fs

dB dB dB

Fs Fs

DS593F1 13

CS4272

ADC ANALOG CHARACTERISTICS - COMMERCIAL GRADE

Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise specified. Input is 1 kHz sine wave.

Parameter Symbol Min Typ Max Unit

Single Speed Mode Fs = 48 kHz

Dynamic Range A-weighted

unweighted

Total Harmonic Distortio n + Noise (Note 13)

-1 dB

-20 dB

-60 dB

Double Speed Mode Fs = 96 kHz

Dynamic Range A-weighted

unweighted

40 kHz bandwidth unweighted

Total Harmonic Distortio n + Noise (Note 13)

-1 dB

-20 dB

-60 dB

40 kHz bandwidth -1 dB

Quad Speed Mode Fs = 192 kHz

Dynamic Range A-weighted

unweighted

40 kHz bandwidth unweighted

Total Harmonic Distortio n + Noise (Note 13)

-1 dB

-20 dB

-60 dB

40 kHz bandwidth -1 dB

Dynamic Performance for All Modes

Interchannel Isolation - 110 - dB Interchannel Phase Deviation - 0.0001 - Degree

DC Accuracy

Interchannel Gain Mismatch - 0.1 - dB Gain Error Gain Drift Offset Error HPF enabled

HPF disabled

Analog Input Characteristics

Full-scale Input Voltage 1.07xVA 1.13xVA 1.19xVA Vpp Input Impedance (Differential) (Note 14) 37 - - k Common Mode Rejection Ratio CMRR - 82 - dB

THD+N

108 105

114

111

-100

-91

-51

114

111

108

-100

-91

-51

-97

114

111

108

-100

-91

-51

-97

-94

dB dB

dB dB dB

dB dB dB dB

dB dB dB

dB dB dB dB

±5%

±100 - ppm/°C

100

LSB LSB

Ω

Notes: 13. Referred to the typical full-scale input voltage. Notes: 14. Measured between AIN+ and AIN-

14 DS593F1

CS4272

ADC ANALOG CHARACTERISTICS - AUTOMOTIVE GRADE

Measurement Bandwidth is 10 Hz to 20 kHz unless otherwise specified. Input is 1 kHz sine wave.)

Parameter Symbol Min Typ Max Unit

Single Speed Mode Fs = 48 kHz

Dynamic Range A-weighted

unweighted

Total Harmonic Distortio n + Noise (Note 15)

-1 dB

-20 dB

-60 dB

Double Speed Mode Fs = 96 kHz

Dynamic Range A-weighted

unweighted

40 kHz bandwidth unweighted

Total Harmonic Distortio n + Noise (Note 15)

-1 dB

-20 dB

-60 dB

40 kHz bandwidth -1 dB

Quad Speed Mode Fs = 192 kHz

Dynamic Range A-weighted

unweighted

40 kHz bandwidth unweighted

Total Harmonic Distortio n + Noise (Note 15)

-1 dB

-20 dB

-60 dB

40 kHz bandwidth -1 dB

Dynamic Performance for All Modes

Interchannel Isolation - 110 - dB Interchannel Phase Deviation - 0.0001 - Degree

DC Accuracy

Interchannel Gain Mismatch - 0.1 - dB Gain Error Gain Drift Offset Error HPF enabled

HPF disabled

Analog Input Characteristics

Full-scale Input Voltage 1.07xVA 1.13xVA 1.19xVA Vpp Input Impedance (Differential) (Note 16) 37 - - k Common Mode Rejection Ratio CMRR - 82 - dB

THD+N

106 103

114 111

-100

-91

-51

114 111 108

-100

-91

-51

-97

114 111 108

-100

-91

-51

-97

-92

dB dB

dB dB dB

dB dB dB dB

dB dB dB

dB dB dB dB

±5%

±100 - ppm/°C

100

LSB LSB

Ω

Notes: 15. Referred to the typical full-scale input voltage. Notes: 16. Measured between AIN+ and AIN-

DS593F1 15

CS4272

ADC DIGITAL FILTER CHARACTERISTICS (Note 19)

Parameter Symbol Min Typ Max Unit

Single Speed Mode

Passband (-0.1 dB). (Note 17) 0 - 0.47 Fs Passband Ripple. - - ±0.035 dB Stopband. (Note 17) 0.58 - - Fs Stopband Attenuation. -95 - - dB Group Delay. t

Double Speed Mode

Passband (-0.1 dB). (Note 17) 0 - 0.45 Fs Passband Ripple. - - ±0.035 dB Stopband. (Note 17) 0.68 - - Fs Stopband Attenuation. -92 - - dB Group Delay. t

Quad Speed Mode

Passband (-0.1 dB). (Note 17) 0 - 0.24 Fs Passband Ripple. - - ±0.035 dB Stopband. (Note 17) 0.78 - - Fs Stopband Attenuation. -97 - - dB Group Delay. t

High Pass Filter Characteristics

Frequency Response -3.0 dB.

-0.13 dB. (Note 18) Phase Deviation @ 20 Hz. (Note 18) - 10 - Deg Passband Ripple. - - 0 dB

Filter Settling Time.

-12/Fs- s

-9/Fs- s

-5/Fs- s

-120-

/Fs

Hz Hz

Notes: 17. The filter frequency respon se scales precisely with Fs.

18. Response shown is for Fs equal to 48 kHz. Filter characteristics scale with Fs.

19. Plots of this data are contained in the “Appendix” on page 47. See Figure 45 through Figure 56.

16 DS593F1

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