MAXIM MAX9880A Technical data

General Description

The MAX9880A is a high-performance, stereo audio
codec designed for portable consumer applications
such as smartphones and tablets. Operating from a sin­gle 1.8V supply to ensure low-power consumption, the
MAX9880A offers a variety of input and output configu­rations for design flexibility. The MAX9880A can be
combined with an audio subsystem, such as the
MAX9877 or MAX9879, for a complete audio solution
for portable applications.

The MAX9880A’s stereo differential microphone inputs
can support either analog or digital microphones. A
stereo single-ended line input, with a configurable pre­amplifier, can either be recorded by the ADC or routed
directly to the headphone or line output amplifiers. The
stereo headphone amplifiers can be configured as dif­ferential, single ended, or capacitorless. The stereo line
outputs have dedicated level adjustment.

There are two digital audio interfaces. The primary
interface is intended for voiceband applications, while
the secondary interface can be used for high perfor­mance stereo audio data. Two digital input streams can
be processed simultaneously and both digital inter­faces support TDM and I2S data formats.

The flexible clocking circuitry utilizes any available
10MHz to 60MHz system clock, eliminating the need for
an external PLL and multiple crystal oscillators. Both
the ADC and DAC can be operated synchronously or
asynchronously in master or slave mode. The ADC can
be operated from 8kHz to 48kHz sample rates, while
the DAC can be operated up to 96kHz.

The MAX9880A prevents click and pop during volume
changes and during power-up and power-down. Audio
quality is further enhanced with user-configurable digital
filters for voice and audio data. Voiceband filters pro­vide extra attenuation at the GSM packet frequency and
greater than 70dB stopband attenuation at fS/2. An I2C
or SPI™ serial interface provides control for volume lev­els, signal mixing, and general operating modes.

The MAX9880A is available in space-saving, 48-bump,

2.7mm x 3.5mm, 0.4mm-pitch WLP and 48-pin, 6mm x
6mm TQFN packages.

Applications

Cellular Phones

Tablet PCs

Portable Gaming Devices

Portable Multimedia Players

Features

o 1.8V Single-Supply Operation
o 10.6mW Playback Power Consumption
o 8kHz to 96kHz Stereo DAC with 96dB Dynamic

Range

o 8kHz to 48kHz Stereo ADC with 82dB Dynamic

Range

o Support for Any Master Clock Between 10MHz to

60MHz

o Stereo Microphone Inputs Support Digital

Microphones

o Stereo Headphone Amplifiers: Differential

(30mW), Single-Ended, or Capacitorless (10mW)

o Stereo Line Inputs and Stereo Line Outputs
o Voiceband Filters with Stopband Attenuation

Greater than 70dB

o Battery-Measurement Auxiliary ADC
o Comprehensive Headset Detection
o Dual I2S- and TDM-Compatible Digital Audio

Interfaces

o I2C- or SPI-Compatible Control Bus with 3.6V

Tolerant Inputs

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

________________________________________________________________

Maxim Integrated Products

1

Ordering Information

19-5139; Rev 1; 3/11

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

+

Denotes a lead(Pb)-free/RoHS-compliant package.

*

EP = Exposed pad.

EVALUATION KIT

AVAILABLE

PART TEMP RANGE PIN-PACKAGE

MAX9880AEWM+ -40°C to +85°C 48 WLP

MAX9880AETM+ -40°C to +85°C 48 TQFN-EP*

Functional Diagram/Typical Operating Circuit appears at
end of data sheet.

SPI is a trademark of Motorola, Inc.

MAX9880A

MIC

BIAS

MIX

LEFT

DIGITAL

FILTERING

RIGHT

LEFT
DAC

RIGHT

DAC

MIX

MIXMIXMIXMIX

DIGITAL

AUDIO

INTERFACE

1

MASTER

CLOCK

JACK SENSE/

MEASUREMENT

ADC

DIGITAL

AUDIO

INTERFACE

2

I2C

INTERFACE

Simplified Block Diagram

MAX9880A

Low-Power, High-Performance
Dual I

2

S Stereo Audio Codec

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

(Voltages with respect to AGND.)

DVDD, AVDD, PVDD ................................................-0.3V to +2V

DVDDS1, JACKSNS, MICVDD ..............................-0.3V to +3.6V

DGND, PGND........................................................-0.1V to +0.1V

PREG, REF, REG ....................................-0.3V to (V

AVDD

+ 0.3V)

MICBIAS .............................................-0.3V to (V

MICVDD

+ 0.3V)

MCLK, LRCLKS1, BCLKS1,

SDINS1, SDOUTS1..........................-0.3V to (V

DVDDS1

+ 0.3V)

X1, X2, LRCLKS2, BCLKS2, SDINS2,

SDOUTS2, DOUT, MODE ...................-0.3V to (V

DVDD

+ 0.3V)

SDA/DIN, SCL/SCLK, CS, IRQ ..............................-0.3V to +3.6V

LOUTP, LOUTN, ROUTP, ROUTN,

LOUTL, LOUTR ....................(V

PGND

- 0.3V) to (V

PVDD

+ 0.3V)

LINL, LINR, MICLP/DIGMICDATA,

MICLN/DIGMICCLK, MICRP/SPDMDATA,

MICRN/SPDMCLK ...............................-0.3V to (V

AVDD

+ 0.3V)

Continuous Power Dissipation (T

A

= +70°C)

48-Bump WLP (derate 12.5mW/°C above +70°C) .....1000mW

48-Pin TQFN (derate 37mW/°C above +70°C) ..........2963mW

Junction Temperature......................................................+150°C

Operating Temperature Range ...........................-40°C to +85°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

Soldering Temperature (reflow) .......................................+260°C

Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial

.

PACKAGE THERMAL CHARACTERISTICS (Note 1)

TQFN

Junction-to-Ambient Thermal Resistance (θ

JA

)...............27°C/W

Junction-to-Case Thermal Resistance (θ

JC

)......................1°C/W

WLP

Junction-to-Ambient Thermal Resistance (θ

JA

)................42°C/W

Junction-to-Case Thermal Resistance (θ

JC

).......................5°C/W

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage Range

Total Supply Current I

Shutdown Supply
Current

Shutdown to Full
Operation

VDD

T

Excludes PLL lock time 10 ms

PVDD, DVDD, AVDD 1.65 1.8 1.95

DVDDS1, MICVDD 1.65 1.8 3.6

Ful l-duple x 8 kHz
mono (Note 3)

DAC playback
48kHz stereo
(Note 3)

Full-duplex 48kHz
stereo (Note 3)

Stereo line-in to
line-out only,

= +25°C

T

A

= +25°C

A

Analog (AVDD + PVDD +
MICVDD)

Digital (DVDD + DVDDS1) 1.4 2

Analog (AVDD + PVDD +
MICVDD)

Digital (DVDD + DVDDS1) 2.5 4

Analog (AVDD + PVDD +
MICVDD)

Digital (DVDD + DVDDS1) 3.0 5

Analog (AVDD + PVDD +
MICVDD)

Digital (DVDD + DVDDS1) 0.012 0.05

Analog (AVDD + PVDD +
MICVDD)

Digital (DVDD + DVDDS1) 2.6 8

5.33 8

3.5 6

8.4 12

4.9 8

0.3 2

V

mA

µA

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DAC (Note 4)

Dynamic Range
(Note 5)

Ful l-Scale Output

Gain Error

Voice Path Phase Delay P

Total Harmonic
Distortion

DAC Attenuation Range AV

DAC Gain Adju st AV

Power-Supply Rejection
Ratio

DAC VOICE MODE DIGITAL IIR LOWPASS FILTER (6x Interpolation)

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation f > f

DAC VOICE MODE DIGITAL 5th-ORDER IIR HIGHPASS FILTER

5th-Order Passband
Cutoff
(-3dB from Peak,

2

I

C Register

Programmable)

fS = 48kHz, AV

DR

T

= +25°C

A

= 0dB,

VOL

Master or slave mode 96

Slave mode 88

Differential mode 1

Capacitorle ss and single-ended modes 0.56

DC accuracy, mea sured with respect to full-sca le
output

1kHz, 0dB input, highpass
filter disabled measured from

DLY

digital input to analog output;
MODE = 0 (IIR voice)

f

= 12.288MHz, fS = 48kHz, 0dBFS, measured

THD

GAIN

PSRR

PLP

SLP

MCLK

at headphone outputs

VDACA/SDACA = 0xF to 0 x0 -15 0 dB

DAC

VDACG = 00 to 11 0 +18 dB

V

= V

AVDD

f = 217Hz, V

f = 1 kH z, V

f = 10kHz, V

= 1.65V to 1.95V 85

PVDD

= 100mV

RIPPLE

= 100mV

RIPPLE

= 100mV

RIPPLE

With respect to fS within ripple; fS = 8kHz to 48kHz 0.448 x f

-3dB cutoff 0.451 x f

PLP

With respect to fS; fS = 8kHz to 48 kHz 0.476 x f

, f = 20Hz to 20kHz 75 dB

SLP

fS = 8kHz 1.2

= 16kHz 0.59

f

S

P-P

P-P

P-P

, AV

, AV

, AV

= 0dB 85

VOL

= 0dB 80

VOL

= 0dB 74

VOL

DVFLT = 0x1
(Elliptical tuned for 16kHz GSM + 217Hz notch)

DVFLT = 0x2
(500Hz Butterworth tuned for 16kHz)

f

DHPPB

DVFLT = 0x3
(Elliptical tuned for 8kHz GSM + 217Hz notch)

DVFLT = 0x4
(500Hz Butterworth tuned for 8kHz)

DVFLT = 0x5
(f

/240 Butterworth)

S

1 5 %

-75 dB

±0.1 dB

0.0161 x
f

S

0.0312 x
f

S

0.0321 x
f

S

0.0625 x
f

S

0.0042 x
f

S

S

S

S

dB

V

RMS

ms

dB

Hz

Hz

Hz

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

4 _______________________________________________________________________________________

(

)

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

5th-Order Stopband
Cutoff
(-30dB from Peak,

2

I

C Register

Programmable)

DC Attenuation DC

DAC STEREO AUDIO MODE DIGITAL FIR LOWPASS FILTER (DHF = 0 for f

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation f > f

DAC STEREO AUDIO MODE DIGITAL FIR LOWPASS FILTER (DHF = 1 for f

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation f > f

DAC STEREO AUDIO MODE DIGITAL DC-BLOCKING HIGHPASS FILTER

Passband Cutoff
(-3dB from Peak)

DC Attenuation DC

ADC (Note 6)

Dynamic Range
(Note 5)

Ful l-Scale Input

Gain Error (Note 7)

Voice Path Phase Delay

DVFLT = 0x1
(Elliptical tuned for 16kHz GSM + 217Hz notch)

DVFLT = 0x2
(500Hz Butterworth tuned for 16kHz)

f

DHPSB

DVFLT = 0x3
(Elliptical tuned for 8kHz GSM + 217Hz notch)

DVFLT = 0x4
(500Hz Butterworth tuned for 8kHz)

DVFLT = 0x5

/240 Butterworth)

(f

S

DVFLT not equal to 000 90 dB

ATTEN

With respect to fS within ripple; fS = 8kHz to 48kHz 0.43 x f

PLP

-3dB cutoff 0.47 x f

-6.02dB cutoff 0.50 x f

PLP

SLP

PLP

SLP

f

DHPPB

ATTEN

DR

With respect to f
to 7.42 f

S

60 dB

SLP

Ripple limit cutoff 0.24 x f

-3dB cutoff 0.33 x f

±0.1 dB

PLP

With respect to fS; f = 0.5 fS to 3.5 fS 0.5 x fS Hz

60 dB

SLP

DVFLT = 0x1 (DAI1), DCB = 1 (DAI2)

DVFLT = 0x1 (DAI1), DCB = 1 (DAI2) 90 dB

fS = 8kHz, MODE = 0 (IIR voice), TA = +25°C 72 82

f

= 8kHz to 48kHz, MODE = 1 (FIR audio) (Note 7) 84

S

; fS = 8kHz to 48kHz; f = 0.58 f

S

Differential MIC input or stereo line inputs,
AV

= 0dB, AV

PRE

PGAM

= 0dB

DC accuracy, measured with respect to 80% of fu ll­scale output

1kH z, 0dB input, highpass
filter disabled measured from
analog input to digital output;
MODE = 0

IIR voice

fS = 8kHz 1.2

f

S

0.0139 x
f

S

0.0156 x
f

S

0.0279 x
f

S

0.0312 x
f

S

0.0021 x
f

S

< 50kHz)

LRCLK

S

S

S

±0.1 dB

LRCLK

S

> 50kHz)

0.58 x f

S

S

S

0.000625 x
f

S

1 V

1 5 %

= 16kHz 0.61

Hz

Hz

Hz

Hz

Hz

dB

P-P

ms

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

_______________________________________________________________________________________ 5

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Total Harmonic
Distortion

ADC Level Adjust

Power-Supply Rejection
Ratio

ADC VOICE MODE DIGITAL IIR LOWPASS FILTER

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation f > f

ADC VOICE MODE DIGITAL 5th-ORDER IIR HIGHPASS FILTER

Passband Cutoff
(-3dB from Peak)

Stopband Cutoff
(-30dB from Peak)

DC Attenuation DC

ADC STEREO AUDIO MODE DIGITAL FIR LOWPASS FILTER

Passband Cutoff f

THD f = 1kH z, f

AV

PSRR

f

AHPPB

f

AHPSB

AVL/AVR = 0xF to 0x0 -12 +3 dB

ADC

V

AVDD

f = 217Hz, V
input referred

f = 1 kH z, V
referred

f = 10kHz, V
input referred

PLP

SLP

With respect to fS within ripple; fS = 8kHz to 48kHz 0.445 x f

-3dB cutoff 0.449 x f

With respect to fS; fS = 8kHz to 48 kHz 0.469 x fS Hz

AVFLT = 0x1
(Elliptical tuned for 16kHz GSM + 217Hz notch)

AVFLT = 0x2
(500Hz Butterworth tuned for 16kHz)

AVFLT = 0x3
(Elliptical tuned for 8kHz GSM + 217Hz notch)

AVFLT = 0x4
(500Hz Butterworth tuned for 8kHz)

AVFLT = 0x5 (fS/240 Butterworth) 0.0042 x f

AVFLT = 0x1 (Elliptical tuned for 16kHz GSM +
217Hz notch)

AVFLT = 0x2 (500Hz Butterworth tuned for 16kHz) 0.0156 x f

AVFLT = 0x3 (Elliptical tuned for 8kHz GSM +
217Hz notch)

AVFLT = 0x4 (500Hz Butterworth tuned for 8kHz) 0.0312 x f

AVFLT = 0x5 (fS/240 Butterworth) 0.0021 x f

AVFLT  000 90 dB

ATTEN

With respect to fS within ripple; fS = 8kHz to 48kHz 0.43 x f

PLP

-3dB cutoff 0.48 x f

-6.02dB cutoff 0.5 x f

= 8kHz, TA = +25°C, -20dB input -80 -70 dB

S

= 1.65V to 1.95V, input referred 60 80

= 100mV

RIPPLE

= 100mV

RIPPLE

= 100mV

RIPPLE

±0.1 dB

PLP

, f = 20Hz to 20kHz 74 dB

SLP

P-P

P-P

P-P

, AV

, AV

, AV

= 0dB,

ADC

= 0dB, input

ADC

= 0dB,

ADC

80

78

72

S

S

0.0161 x
f

S

0.0312 x
f

S

0.0321 x
f

S

0.0625 x
f

S

S

0.0139 x
f

S

S

0.0279 x
f

S

S

S

S

S

S

dB

Hz

Hz

Hz

Hz

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

6 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation f > f

ADC STEREO AUDIO MODE DIGITAL DC-BLOCKING HIGHPASS FILTER

Passband Cutoff
(-3dB from Peak)

DC Attenuation DC

OUTPUT VOLUME CONTROL

Output Vo lu me Control
(Note 8)

Output Vo lu me Control
Step Size

Output Vo lu me Control
Mute Attenuation

HEADPHONE AMPLIFIER (Note 9)

Output Power
(Differential Mode)

Output Power
(Capacitorless Mode)

Total Harmonic
Distortion + Noise
(Differential Mode)

Total Harmonic
Distortion + Noise
(Capacitorless Mode)

Total Harmonic
Distortion + Noise
(Single-Ended Mode)

Dynamic Range
(Notes 5, 7)

f

AHPPB

P

P

THD+N f = 1kHz, -3dBFS input

THD+N f = 1kHz, -3dBFS input

THD+N f = 1kHz, -3dBFS input

With respect to fS; fS = 8kHz to 48 kHz 0.58 x fS Hz

SLP

AVFLT = 0x1

AVFLT = 0x1 90 dB

ATTEN

VOLL/VOLR = 0x00 8.1 8.6 9.2

VOLL/VOLR = 0x01 7.6 8.1 8.6

VOLL/VOLR = 0x02 7.1 7.6 8.1

VOLL/VOLR = 0x04 6.1 6.6 7.2

VOLL/VOLR = 0x08 3.1 3.6 4.3

VOLL/VOLR = 0x10 -5.9 -5.4 -4.9

VOLL/VOLR = 0x20 -60 -55.1 -52

VOLL/VOLR = 0x27 -94 -84 -81

VOLL/VOLR = 00 x00 to 0x06 (+9dB to +6dB) 0.5

VOLL/VOLR = 00 x06 to 0x0F (+6dB to +3dB) 1

VOLL/VOLR = 00 x0F to 0x17 (-3dB to -19dB) 2

VOLL/VOLR = 00 x17 to 0x27 (-19dB to -81dB) 4

f = 1kHz 100 dB

f = 1kHz, 0dBFS input,

OUT

THD < 1%, T

f = 1kHz, 0dBFS input,

OUT

THD < 1%, T

DR AV

PLP

, f = 20Hz to 20kHz 60 dB

SLP

= +6dB 77 90 dB

VOL

= +25°C

A

= +25°C

A

RL = 16 25 48

R

= 32 30

L

RL = 16 17

R

= 32 10

L

RL = 16 -78 -67

R

= 32 -79

L

RL = 16 -73 -60

R

= 32 -75

L

RL = 16 -70 -60

R

= 32 -70

L

±0.1 dB

0.000625

x f

S

Hz

dB

dB

mW

mW

dB

dB

dB

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

_______________________________________________________________________________________ 7

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Power-Supply Rejection
Ratio (Note 7)

Output Offset Voltage V

Crosstalk XTALK

Capaciti ve Drive
Capability

Click-and-Pop Leve l
(Differential,
Capacitorless Modes)

Click-and-Pop Leve l
(Single-Ended Mode)

LINE OUTPUTS (Note 7)

Ful l-Scale Output 0.5 V

Line Output Level
Adjust

Line Output Mute
Attenuat ion

Total Harmonic
Distortion + Noise

Signal-to-Noise Ratio

Power-Supply Rejection
Ratio

Capaciti ve Drive
Capability

PSRR

V

AVDD

f = 217Hz, V

f = 1 kH z, V

f = 10kHz, V

AV
different ia l mode

OS

AV
capacitorless mode

Differential, P

Capacitorless mode, P

= V

= -81dB,

VOL

PVDD

RIPPLE

= 1.65V to 1.95V 60 80

= 100mV

RIPPLE

RIPPLE

= 100mV

= 100mV

P-P

P-P

P-P

LOUTP to LOUTN, ROUTP to
ROUTN, T

= -81dB,

VOL

LOUTP to LOUTN, ROUTP to
LOUTN, T

= 5mW, f = 1kHz 90

OUT

= 5mW, f = 1kHz 45

OUT

No sustained oscillations

Peak voltage, A-weighted,
32 samples per second

Peak voltage, A-weighted,
32 samples per second

, AV

VOL

, AV

VOL

, AV

VOL

= +25°C

A

= +25°C

A

= 0dB 80

= 0dB 78

= 0dB 72

±0.2

±0.6

RL = 32 500

R

=  100

L

Into shutdown -70

Out of shutdown -70

Into shutdown -70

Out of shutdown -70

LOGL/LOGR = 0x00 -0.7 -0.1 +0.6

LOGL/LOGR = 0x01 -2.6 -2.1 -1.6

AV

LOGL/LOGR = 0x02 -4.6 -4.1 -3.6

LO

LOGL/LOGR = 0x04 -8.6 -8.1 -7.6

LOGL/LOGR = 0x08 -16.6 -16 -15.6

LOGL/LOGR = 0x0F -31.1 -29.9 -29.1

f = 1kHz 90 dB

THD+N R

PSRR

R

= 1k, f = 1kHz, V

L

R

= 1k, LINL/LINR =

L

1µF to GND

V

= V

AVDD

f = 217Hz, V

f = 1 kH z, V

f = 10kHz, V

= 10k, no sustained oscillations 100 pF

L

= 1.65V to 1.95V 46

PVDD

RIPPLE

= 100mV

RIPPLE

RIPPLE

OUT

= 1.4V

(Note 9) -67 -59 dB

P-P

20Hz < f < 20 kHz 86

A-weighted 90

= 100mV

= 100mV

P-P

P-P

P-P

, AV

, AV

, AV

= 0dB 78

VOL

= 0dB 80

VOL

= 0dB 76

VOL

dB

mV

dB

pF

dBV

dBV

RMS

dB

dB

dB

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

8 _______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MICROPHONE AMPLIFIER

Preamplifier Gain AV

MIC PGA Gain AV

Common-Mode
Reject ion Ratio

MIC Input Resistance RIN_MIC All gain settings 30 50 k

Total Harmonic
Distortion + Noise

Power-Supply Rejection
Ratio

MICROPHONE BIAS

MICBIAS Output Voltage V

Load Regulation I

Line Regulation V

Power-Supply Rejection
Ratio

Noise Voltage A-weighted 9.5 µV

LINE INPUT

Ful l-Scale Input VIN AV

Line Input Level Adjust AV

PALEN/PAREN = 01 -0.5 0 +0.5

PALEN/PAREN = 10 19.5 20 20.5

PRE

PALEN/PAREN = 11 29.3 30 30.5

PGAM

CMRR V

PGAML/PGAMR = 0x1F -0.5 0 +0.6

PGAML/PGAMR = 0x00 19.3 19.9 20.4

IN

AV
V

THD+N

IN

AV
V

IN

V

AVDD

f = 217Hz, V
referred

PSRR

f = 1 kH z, V
referred

f = 10kHz, V
referred

MICBIAS ILOAD

LOAD

AVDD

PSRR

f = 217Hz, V

f = 10kHz, V

LIGL/LIGR = 0x00 22.8 23.9 24.9

LIGL/LIGR = 0x01 20.7 21.9 22.9

LIGL/LIGR = 0x02 18.9 20 20.9

LINE

LIGL/LIGR = 0x04 14.9 16 16.9

LIGL/LIGR = 0x08 6.9 8 8.9

= 100mV

= 0dB

PRE

= 1V

P-P

= +30dB

PRE

= 32mV

, f = 1kHz, A-weighted

P-P

, f = 217Hz 50 dB

P-P

-80

, f = 1kHz, A-weighted

-65

= 1.65V to 1.95V, input referred 60 80

RIPPLE

= 1mA

= 100mV, AV

RIPPLE

= 100mV, AV

= 100mV, AV

RIPPLE

V

MICVDD

V

MICVDD

= 1.8V, MBIAS = 0 1.48 1.52 1.56

= 3V, MBIAS = 0 2.15 2.2 2.25

= 0dB, input

ADC

= 0dB, input

ADC

= 0dB, input

ADC

80

78

72

= 1mA to 2mA, MBIAS = 0 0.6 10 V/A

= 1.8V, V

RIPPLE

RIPPLE

= 0dB 1.0 V

LINE

= 1.65V to 1.95V, MBIAS = 0 1.55 mV/V

MICVDD

= 100mV

= 100mV

100

P-P

90

P-P

dB

dB

dB

dB

V

dB

RMS

P-P

dB

MAX9880A

Low-Power, High-Performance

Dual I

2

S Stereo Audio Codec

_______________________________________________________________________________________ 9

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Line Input Mute
Attenuat ion

Input Resistance R

Total Harmonic
Distortion + Noise

AUXIN INPUT

Input DC Voltage Range AUXEN = 1 0 0.738 V

AUXIN Input Resistance R

JACK DETECT

JACKSNS High
Threshold

JACKSNS Low
Threshold

JACKSNS Sense
Voltage

JACKSNS Sense
Resistance

JACKSNS Deglitch
Period

Headphone Sense
Threshold

1-BIT SPDM OUTPUT

Dynamic Range
(Note 5)

Output Operational
Range

DIGITAL SIDETONE (MODE = 1 IIR Voice Mode Only)

Sidetone Gain Adjust
Range

Voice Path Phase Delay P

IN_LINE

THD+N V

V

V

V

SENSE

R

SENSE

t

GLITCH

AV

f = 1kHz 100 dB

AV

IN

AUXEN = 1, 0V  V

IN

SHDN = 1

TH1

SHDN = 0

SHDN = 1

TH2

SHDN = 0

SHDN = 0 V

SHDN = 0 1.9 2.3 3.1 k

12 300 ms

f

= 48kHz, A-weighted, 20Hz to 20kHz,

DR

STGA

DLY

S

AV

0dB signa l 1’s density 25 75 %

Differential output mode -60 0 dB

MIC input to headphone
output, f = 1 kH z, HP filter
disabled

= +24dB 20 k

LINE

= 0.1V

P-P

= 0dB; ma ster or sla ve mode, TA = +25°C

VOL

, f = 1kHz -74 dB

 0.738V

AUXIN

fS = 8kHz 2.2

= 16kHz 1.1

f

S

10 40 M

0.92 x

V

MICBIAS

0.06 x

V

MICBIAS

90 dB

0.95 x

V

MICBIAS

0.95 x

V

MICVDD

0.10 x

V

MICBIAS

0.08 x

V

MICVDD

MICVDD

V

V

V

8 

0.98 x

MICBIAS

0.17 x

MICBIAS

V

V

ms

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

10 ______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

INPUT CLOCK CHARACTERISTICS

MCLK Input Frequency f

MCLK Input Duty Cycle

Maximum MCLK Input
Jitter

LRCLK Sample Rate
(Note 10)

LRCLK Average
Frequency Error (Master
and Slave Modes)
(Note 11)

LRCLK PLL Lock Time

LRCLK Acceptable
Jitter for Maintaining
PLL Lock

Soft-Start/Stop Time 10 ms

CRYSTAL OSCILLATOR

Frequency Fundamental mode only 12.288 MHz

Maximum Crystal ESR 100 

Input Leakage Current IIH, IIL X1, TA = +25°C -1 +1 µA

Input Capacitance CX1, CX2 4 pF

Maximum Load
Capacitor

DIGITAL INPUT (MCLK)

Input High Voltage VIH 1.2 V

Input Low Voltage VIL 0.6 V

Input Leakage Current IIH, IIL TA = +25°C -1 +1 µA

Input Capacitance 10 pF

DIGITAL INPUTS (SDINS1, BCLKS1, LRCLKS1)

Input High Voltage V

Input Low Voltage VIL

Input Hysteresis 200 mV

Input Leakage Current IIH, IIL TA = +25°C -1 +1 µA

Input Capacitance 10 pF

MCLK

C

L1

Maxi mum a llowable RMS for performance limit s 100 ps

, CL2 45 pF

IH

For any LRCLK sample rate 10 60 MHz

Prescaler = /1 mode 40 60

/2 or /4 modes 30 70

DHF = 0 8 48

DHF = 1 48 96

FREQ1 mode = 0x8 to 0xF 0 0

PCLK = 192x, 256x, 384x, 512x, 768x, and 1024x 0 0

FREQ1 mode = An y c lock other than above -0.025 +0.025

Any al lowable LRCLK and
PCLK rate, slave mode

Allowable LRCLK period change from nominal for
slave PLL mode at any allowable LRCLK and PCLK
rates

Rapid lock mode 2 7

Nonrapid lock mode 12 25

0.7

x V

DVDDS1

V

±100 ns

0.3

x V

DVDDS1

%

kHz

%

ms

V

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

______________________________________________________________________________________ 11

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DIGITAL INPUTS (SDA, SCL, DIN, SCLK, CS, MODE, SDINS2, BCLKS2, LRCLKS2)

Input High Voltage V

Input Low Voltage VIL

Input Hysteresis 200 mV

Input Leakage Current IIH, IIL TA = +25°C -1 +1 µA

Input Capacitance 10 pF

DIGITAL INPUTS (DIGMICDATA)

Input High Voltage V

Input Low Voltage VIL

Input Hysteresis 100 mV

Input Leakage Current IIH, IIL TA = +25°C -35 +35 µA

Input Capacitance 10 pF

CMOS DIGITAL OUTPUTS (BCLKS1, LRCLKS1, SDOUTS1)

Output Low Voltage VOL IOL = 3mA 0.4 V

Output High Voltage VOH IOH = 3mA

CMOS DIGITAL OUTPUTS (BCLKS2, LRCLKS2, SDOUTS2)

Output Low Voltage VOL IOL = 3mA 0.4 V

Output High Voltage VOH IOH = 3mA

CMOS DIGITAL OUTPUTS (DOUT)

Output Low Voltage VOL IOL = 1mA, CS = DVDD 0.4 V

Output High Voltage VOH IOH = 1mA, CS = DVDD

Output Low Current IOL MODE = DVDD, DOUT = 0, TA = +25°C -1 +1 µA

Output High Current IOH MODE = DVDD, DOUT = DVDD, TA = +25°C -1 +1 µA

CMOS DIGITAL OUTPUTS (DIGMICCLK, SPDMDATA, SPDMCLK)

Output Low Voltage VOL IOL = 1mA 0.4 V

Output High Voltage VOH IOH = 1mA

OPEN-DRAIN DIGITAL OUTPUTS (SDA, IRQ)

Output High Current IOH V

Output Low Voltage VOL IOL = 3mA

IH

IH

= V

OUT

DVDD

, TA = +25°C -1 +1 µA

0.7

x V

DVDD

0.65

x V

DVDD

V

DVDDS1

- 0.4

V

DVDD

- 0.4

V

DVDD

- 0.4

V

DVDD

- 0.4

V

V

V

V

V

V

x V

x V

x V

0.3

DVDD

0.35

DVDD

0.2

DVDD

V

V

V

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

12 ______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DIGITAL MICROPHONE TIMING CHARACTERISTICS (V

DIGMICCLK Frequency f

DIGMICDATA to
DIGMICCLK Setup Time

DIGMICDATA to
DIGMICCLK Hold Time

SPDM TIMING CHARACTERISTICS

SPDMCLK Frequency f

SPDMCL K to
SPDMDATA Dela y T ime

DIGITAL AUDIO INTERFACE TIMING CHARACTERISTICS (TDM = 0, V

BCLK Cycle Time t

BCLK High Time t

BCLK Low Time t

BCLK or LRCLK Rise
and Fall Time

SDIN or LRCLK to BCLK
Setup Time

SDIN or LRCLK to BCLK
Hold Time

SDOUT Delay Time from
BCLK Ris ing Edge

DIGITAL AUDIO INTERFACE TIMING CHARACTERISTICS (TDM = 1, Figure 3, V

TDM Cloc k Frequency 1/t

TDM Clock Time High t

TDM Clock Time Low t

TDM Short-Sync Setup
Time

= 1.8V)

DVDD

MICCLK = 00 1.536

MICCLK

f

= 12.288MHz

MCLK

MICCLK = 01 2.048

MICCLK = 10 64f

t

Either clock edge 20 ns

SU, M IC

Either clock edge 0 ns

t

HD, M I C

SPDMCLK = 00 1.536

SPDMCLK fMCLK

= 12.288MHz

SPDMCLK = 01 2.048

SPDMCLK = 10 3.072

Risi ng edge SPDMCLK

Minimum, f

Maximum, f

t

DLY, SP DM

to right-channel valid
SPDMDATA and falling
edge SPDMCLK to left­channel valid
SPDMDATA

DVDD

75 ns

BCLKS

TA = +25°C 30 ns

BCLKH

TA = +25°C 30 ns

BCLKL

, tF Master operation, CL = 15pF 7 ns

t

R

t

20 ns

SU

5 ns

t

HD

CL = 30pF 0 40 ns

t

DLY

TDM mode (TDM = 1) 128 2048 kHz

CLK

TDM mode (TDM = 1), TA = +25°C 220 ns

CLKH

TDM mode (TDM = 1), TA = +25°C 220 ns

CLKL

Short TDM mode (TDM = 1, FSW = 0), master mode

t

SYNCSET

(MAS = 1)

Short TDM mode (TDM = 1, FSW = 0), slave mode
(MAS = 0)

= 20MH z 15

MCLK

= 10MHz 65

MCLK

= 1.8V)

= 1.8V)

DVDD

200

20

S

MHz

MHz

ns

ns

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

______________________________________________________________________________________ 13

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

TDM Short Sync Ho ld
Time

TDM Short Sync Tx Data
Delay

TDM Long Sync Start
Delay

TDM Long Sync End
Time Setup

TDM Data Dela y from
Clock

TDM High-Impedance
State Setup from Data

TDM Rx Data Setup
Time

TDM Rx Data Hold Time t

I2C TIMING CHARACTERISTICS (V

Serial-Clock Frequency f

Bus Free Time Between
STOP and START
Conditions

Hold Time (Repeated)
START Condition

SCL Pulse-Width Low t

SCL Pulse-Width High t

Setup Time for a
Repeated START
Condition

Data Hold Time t

Data Setup Time t

SDA a nd SCL Rece i v ing
Rise Time

SDA a nd SCL Rece i v ing
Fal l Time

SDA Transmitting Fall
Time

Setup Time for STOP
Condition

t

SYNCHOLD

t

SYNCTX

t

CLKS YNC

t

ENDSYNC

t

CLKTX

t

HIZOUT

t

SETUP

t

HD, STA

t

SU,STA

HD,DAT

SU,DAT

t

SU,STO

Short TDM mode (TDM = 1, FSW = 0), master mode
(MAS = 1)

Short TDM mode (TDM = 1, FSW = 0), slave mode
(MAS = 0)

200

20

Short TDM mode (TDM = 1, FSW = 0) 12 ns

Long TDM mode (TDM = 1, FSW = 1) 3.4 ns

Long TDM mode (TDM = 1, FSW = 1) 51 ns

TDM mode (TDM = 1) 40 ns

TDM mode (TDM = 1) 120 ns

TDM mode (TDM = 1) 20 ns

TDM mode (TDM = 1) 20 ns

HOLD

= 1.65V)

DVDD

0 400 kHz

SCL

t

1.3 µs

BUF

0.6 µs

1.3 µs

LOW

0.6 µs

HIGH

0.6 µs

R

= 475 0 900 ns

PU,SDA

100 ns

(Note 12)

t

R

(Note 12)

t

F

R

t

F

= 475 (Note 12)

PU,SDA

20 +

0.1C

20 +

0.1C

20 +

0.1C

B

B

B

300 ns

300 ns

250 ns

0.6 µs

ns

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

14 ______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN, dif-

ferential modes, C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB,

AV

VOL

= 0dB, AVLO= 0dB, f

MCLK

= 13MHz, TA= T

MIN

to T

MAX

, unless otherwise noted. Typical values are at TA= +25°C.) (Note 2)

Note 2: The MAX9880A is 100% production tested at TA= +25°C. Specifications over temperature limits are guaranteed by

design.

Note 3: Clocking all zeros into the DAC. Master mode. Differential headphone mode.
Note 4: DAC performance measured at headphone outputs.
Note 5: Dynamic range measured using the EIAJ method. -60dBFS 1kHz output signal, A-weighted, and normalized to 0dBFS.

f = 20Hz to 20kHz.

Note 6: Performance measured using microphone inputs, unless otherwise stated.
Note 7: Performance measured using line inputs.
Note 8: Performance measured using line inputs to line outputs.
Note 9: Performance measured using DAC. f

MCLK

= 12.288MHz, f

LRCLK

= 48kHz, unless otherwise stated.

Note 10: LRCLK can be any rate in the indicated range. Asynchronous or noninteger MCLK/LRCLK ratios can exhibit some full-

scale performance degradation compared to synchronous integer-related MCLK/LRCLK ratios.

Note 11: In master-mode operation, the accuracy of the MCLK input proportionally determines the accuracy of the sample clock

rate.

Note 12: C

B

is in pF.

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Bus Capacitance CB 400 pF

Pulse Width of
Suppres sed Spike

SPI TIMING CHARACTERISTICS

Minimum SCLK Clock
Period

Minimum SCLK Pulse­Width Low

Minimum SCLK Pulse­Width High

Minimum CS Setup
Time

Minimum CS Hold Time t
Minimum CS Pulse-

Width High

Minimum DIN Setup Time t

Minimum DIN Hold Time t

Minimum Output Data
Propagation De lay

Minimum Output Data
Enable Time

Minimum Output Data
Disable Time

t

t

t

t

CSS

CSH

t

CSW

t

t

DEN

t

0 50 ns

SP

CP

t

CL

CH

DS

DH

CL = 50pF 9 ns

DO

5 ns

5 ns

DZ

40 ns

18 ns

18 ns

20 ns

20 ns

20 ns

5 ns

5 ns

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

______________________________________________________________________________________

15

Typical Operating Characteristics

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN,

C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB, AV

VOL

= 0dB,

AV

LO

= 0dB, f

MCLK

= 13MHz, differential output, unless otherwise noted.)

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

-10
f

R

-20
DIFFERENTIAL MODE

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100
050

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

-10
f

R

-20
DIFFERENTIAL MODE

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100
060

= 13MHz

MCLK
LRCLK

LOAD

= 12.288MHz

MCLK
LRCLK

LOAD

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

MCLK

-10

= 8kHz
= 32

Ω

3kHz

MAX9880A toc01

1kHz

20Hz

40302010

POWER OUT (mW)

f

LRCLK

R

LOAD

-20
DIFFERENTIAL MODE

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100
060

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

MCLK

MAX9880A toc04

-10
f

LRCLK

R

LOAD

-20
DIFFERENTIAL MODE

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100
050

= 48kHz
= 16

Ω

6kHz

1kHz

20Hz

5040302010

POWER OUT (mW)

= 13MHz

= 8kHz
= 16

Ω

3kHz

POWER OUT (mW)

= 12.288MHz

= 96kHz
= 32

Ω

1kHz

6kHz

POWER OUT (mW)

1kHz

20Hz

5040302010

20Hz

40302010

MAX9880A toc02

MAX9880A toc05

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

= 12.288MHz

MCLK

-10

-20

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100

= 48kHz

f

LRCLK

= 32

R

Ω

LOAD

DIFFERENTIAL MODE

6kHz

050

POWER OUT (mW)

1kHz

20Hz

40302010

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

= 12.288MHz

MCLK

-10

-20

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100

= 96kHz

f

LRCLK

= 16

R

Ω

LOAD

DIFFERENTIAL MODE

1kHz

6kHz

20Hz

060

POWER OUT (mW)

5040302010

MAX9880A toc03

MAX9880A toc06

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-70
f

= 13MHz

MCLK

= 8kHz

f

LRCLK

= 32

R

Ω

LOAD

DIFFERENTIAL MODE

-75

-80

THD+N (dB)

-85

-90

5mW

20mW

10 10,000

FREQUENCY (Hz)

1000100

MAX9880A toc07

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-70
f

= 13MHz

MCLK

-72

-74

-76

-78

-80

THD+N (dB)

-82

-84

-86

-88

-90

= 8kHz

f

LRCLK

= 16

R

Ω

LOAD

DIFFERENTIAL MODE

5mW

20mW

10 10,000

FREQUENCY (Hz)

1000100

MAX9880A toc08

TOTAL HARMONIC DISTORTON + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)

-70
f

= 12.288MHz

MCLK

-72

-74

-76

-78

-80

THD+N (dB)

-82

-84

-86

-88

-90

= 48kHz

f

LRCLK

= 32

R

Ω

LOAD

DIFFERENTIAL MODE

5mW

20mW

10 100k

FREQUENCY (Hz)

MAX9880A toc09

10k1k100

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

16 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN,

C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB, AV

VOL

= 0dB,

AV

LO

= 0dB, f

MCLK

= 13MHz, differential output, unless otherwise noted.)

TOTAL HARMONIC DISTORTON + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)

-70
f

MCLK

-72
f

LRCLK

R

-74
DIFFERENTIAL MODE

-76

5mW

-78

-80

THD+N (dB)

-82

-84

-86

-88

-90

10 100k

= 12.288MHz

= 48kHz

= 16

LOAD

TOTAL HARMONIC DISTORTON + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-70
f

= 12.288MHz

MCLK

Ω

20mW

FREQUENCY (Hz)

-72

-74

MAX9880A toc10

-76

-78

-80

THD+N (dB)

-82

-84

-86

-88

10k1k100

-90

= 96kHz

f

LRCLK

= 32

R

LOAD

DIFFERENTIAL MODE

5mW

10 100k

Ω

20mW

FREQUENCY (Hz)

10k1k100

MAX9880A toc11

TOTAL HARMONIC DISTORTON + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)

-70
f

= 12.288MHz

MCLK

-72

-74

-76

-78

-80

THD+N (dB)

-82

-84

-86

-88

-90

= 96kHz

f

LRCLK

= 16

R

Ω

LOAD

DIFFERENTIAL MODE

5mW

20mW

10 100k

FREQUENCY (Hz)

MAX9880A toc12

10k1k100

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

= 13MHz

MCLK

-10

-20

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100

= 8kHz

f

LRCLK

= 32

R

Ω

LOAD

CAPACITORLESS MODE

3kHz

015

POWER OUT (mW)

1kHz

20Hz

105

MAX9880A toc13

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-60
f

= 13MHz

MCLK

= 8kHz

f

LRCLK

-65

-70

-75

THD+N (dB)

-80

-85

= 32

R

Ω

LOAD

CAPACITORLESS MODE

1mW

MAX9880A toc16

5mW

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

= 12.288MHz

MCLK

-10

-20

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100

= 48kHz

f

LRCLK

= 32

R

LOAD

CAPACITORLESS MODE

6kHz

015

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-60
f

= 12.288MHz

MCLK

= 48kHz

f

LRCLK

-65

-70

-75

THD+N (dB)

-80

-85

= 32

R

LOAD

CAPACITORLESS MODE

1mW

Ω

POWER OUT (mW)

Ω

5mW

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

f

= 12.288MHz

MCLK

-10

-20

MAX9880A toc14

-30

-40

1kHz

20Hz

105

-50

THD+N (dB)

-60

-70

-80

-90

-100

= 96kHz

f

LRCLK

= 32

R

Ω

LOAD

CAPACITORLESS MODE

1kHz

015

POWER OUT (mW)

6kHz

20Hz

105

MAX9880A toc15

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-60
f

= 12.288MHz

MCLK

= 96kHz

f

LRCLK

MAX9880A toc17

-65

-70

-75

THD+N (dB)

-80

-85

= 32

R

Ω

LOAD

CAPACITORLESS MODE

5mW

20mW

MAX9880A toc18

-90
10 10,000

FREQUENCY (Hz)

1000100

-90
10 100k

FREQUENCY (Hz)

10k1k100

-90
10 100k

FREQUENCY (Hz)

10k1k100

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

______________________________________________________________________________________

17

Typical Operating Characteristics (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN,

C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB, AV

VOL

= 0dB,

AV

LO

= 0dB, f

MCLK

= 13MHz, differential output, unless otherwise noted.)

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

-40
f

-45

f
R

-50
SINGLE-ENDED MODE

-55

-60

-65

THD+N (%)

-70

-75

-80

-85

-90

012

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-60
f

f

-65

R
SINGLE-ENDED MODE

-70

-75

THD+N (dB)

-80

-85

-90

10 10,000

MCLK
LRCLK

LOAD

MCLK
LRCLK

LOAD

1mW

= 13MHz

= 8kHz
= 32

= 13MHz

= 8kHz
= 32

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

-40
f

MCLK

-45

f

Ω

20Hz

POWER OUT (mW)

MAX9880A toc19

1kHz

3kHz

108642

LRCLK

R

LOAD

-50
SINGLE-ENDED MODE

-55

-60

-65

THD+N (%)

-70

-75

-80

-85

-90

012

TOTAL HARMONIC DISTORTON + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-70

1mW

-72

Ω

5mW

1000100

FREQUENCY (Hz)

MAX9880A toc22

-74

-76

-78

-80

THD+N (dB)

-82

-84
f

MCLK

-86

f

LRCLK

R

LOAD

-88
SINGLE-ENDED MODE

-90

10 100k

= 12.288MHz

= 48kHz
= 32

Ω

20Hz

POWER OUT (mW)

5mW

= 12.288MHz

= 48kHz

= 32

Ω

FREQUENCY (Hz)

1kHz

6kHz

108642

10k1k100

MAX9880A toc20

MAX9880A toc23

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (DAC TO HEADPHONE)

0

-10

-20

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100
015

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO HEADPHONE)

-60

-65

-70

-75

THD+N (dB)

-80

-85

-90
10 100k

f

= 12.288MHz

MCLK

= 96kHz

f

LRCLK

= 32

R

Ω

LOAD

SINGLE-ENDED MODE

1kHz

POWER OUT (mW)

f

= 12.288MHz

MCLK

= 96kHz

f

LRCLK

= 32

R

Ω

LOAD

SINGLE-ENDED MODE

5mW

20mW

FREQUENCY (Hz)

MAX9880A toc21

6kHz

20Hz

12963

MAX9880A toc24

10k1k100

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (LINE-IN TO HEADPHONE)

0

LINE-IN PREAMP = +18dB

-10

-20

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

= 32

R

Ω

LOAD

DIFFERENTIAL MODE

1kHz

6kHz

050

POWER OUT (mW)

20Hz

40302010

MAX9880A toc25

TOTAL HARMONIC DISTORTION + NOISE

vs. POWER OUT (LINE-IN TO HEADPHONE)

0

LINE-IN PREAMP = 0dB

-10

-20

-30

-40

-50

THD+N (dB)

-60

-70

-80

-90

-100

= 32

R

LOAD

DIFFERENTIAL MODE

050

Ω

POWER OUT (mW)

6kHz

1kHz

20Hz

40302010

MAX9880A toc26

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (LINE-IN TO HEADPHONE)

10

LINE-IN PREAMP = +18dB

I

= 32

R

LOAD

DIFFERENTIAL MODE

1

0.1

THD+N (%)

0.01

0.001

5mW

20mW

10 100,000

FREQUENCY (Hz)

10,0001000100

MAX9880A toc27

MAX9880A

Low-Power, High-Performance
Dual I

2

S Stereo Audio Codec

18 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN,

C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB, AV

VOL

= 0dB,

AV

LO

= 0dB, f

MCLK

= 13MHz, differential output, unless otherwise noted.)

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (LINE-IN TO HEADPHONE)

10

1

0.1

THD+N (%)

0.01

0.001
10 100,000

OUTPUT POWER vs. LOAD RESISTANCE

25

20

15

10

POWER OUT (mW)

5

LINE-IN PREAMP = 0dB

I

= 32

R

LOAD

DIFFERENTIAL MODE

5mW

20mW

FREQUENCY (Hz)

(DAC TO HEADPHONE)

f

MCLK

f

LRCLK

THD+N ≤ 0.1%
CAPACITORLESS MODE

10,0001000100

= 12.288MHz

= 48kHz

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (DAC TO LINE-OUT)

-30
f

= 13MHz

MCLK

= 8kHz

f

LRCLK

-40

MAX9880A toc28

0dBFS

-50

-60

THD+N (dB)

-70

-80

-90

10 10,000

IIR

FIR

1000100

FREQUENCY (Hz)

POWER OUT vs. HEADPHONE LOAD

MAX9880A toc31

25

20

15

10

POWER OUT (mW)

5

f

= 12.288MHz

MCLK

= 48kHz

f

LRCLK

THD+N ≤ 0.1%
SINGLE-ENDED MODE

MAX9880A toc29

MAX9880A toc32

POWER OUT vs. HEADPHONE LOAD

50

45

40

35

30

25

20

POWER OUT (mW)

15

10

5

0

1 1000

HEADPHONE LOAD (Ω)

f

MCLK

f

LRCLK

THD+N ≤ 0.1%
DIFFERENTIAL MODE

TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (MICROPHONE TO ADC)

10

f

= 13MHz

MCLK

= 8kHz

f

LRCLK

MICPRE = 0dB

= 1V

V

1

IN

P-P

0.1

THD+N (%)

0.01

= 12.288MHz

= 48kHz

10010

MAX9880A toc30

MAX9880A toc33

0

1 1000

HEADPHONE LOAD (Ω)

10010

TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (MICROPHONE TO ADC)

10

f

= 13MHz

MCLK

= 8kHz

f

LRCLK

MICPRE = +20dB

= 100mV

V

1

IN

P-P

0.1

THD+N (%)

0.01

0.001
10 10,000

FREQUENCY (Hz)

1000100

MAX9880A toc34

0

1 1000

HEADPHONE LOAD (Ω)

10010

TOTAL HARMONIC DISTORTION + NOISE

vs. FREQUENCY (MICROPHONE TO ADC)

100

f

= 13MHz

MCLK

= 8kHz

f

LRCLK

10

MICPRE = +30dB
VIN = 32mV

P-P

1

THD+N (%)

0.1

0.01

0.001
10 10,000

FREQUENCY (Hz)

1000100

MAX9880A toc35

0.001
10 10,000

FREQUENCY (Hz)

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY (DAC TO HEADPHONE)

0

f

= 12.288MHz

MCLK

= 48kHz

f

LRCLK

-20

-40

-60

PSRR (dB)

-80

-100

-120

= 100mV

V

RIPPLE

1 100k

P-P

FREQUENCY (Hz)

1000100

MAX9880A toc36

10k1k10010

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

______________________________________________________________________________________

19

Typical Operating Characteristics (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN,

C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB, AV

VOL

= 0dB,

AV

LO

= 0dB, f

MCLK

= 13MHz, differential output, unless otherwise noted.)

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY (MICROPHONE TO ADC)

0

V

= 100mV

RIPPLE

-10

f

MCLK

f

LRCLK

-20

-30

-40

-50

PSRR (dB)

-60

-70

-80

-90

-100
1 100k

= 12.288MHz

= 48kHz

FREQUENCY (Hz)

P-P

FFT, DAC TO HEADPHONE,

-60dBFS, f

20

FREQ1 = 0xA

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 20k

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

15k10k5k

10k1k10010

= 8kHz

MAX9880A toc37

PSRR (dB)

-100

-120

MAX9880A toc40

AMPLITUDE (dB)

-100

-120

-140

POWER-SUPPLY REJECTION RATIO

vs. FREQUENCY (MICBIAS)

0

V

= 100mV

RIPPLE

-20

-40

-60

-80

1 100k

P-P

10k1k10010

FREQUENCY (Hz)

FFT, DAC TO HEADPHONE,

0dBFS, f

20

NI = 0x6000

0

-20

-40

-60

-80

0 20k

= 12.288MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

15k10k5k

= 48kHz

MAX9880A toc38

MAX9880A toc41

FFT, DAC TO HEADPHONE,

0dBFS, f

20

FREQ1 = 0xA

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
020k

= 13MHz, f

MCLK

FREQUENCY (Hz)

FFT, DAC TO HEADPHONE,

-60dBFS, f

20

NI = 0x6000

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 20k

= 12.288MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

= 8kHz

15k10k5k

LRCLK

15k10k5k

MAX9880A toc39

= 48kHz

MAX9880A toc42

FFT, DAC TO HEADPHONE,

MCLK

NI = 0x6000
DHF = 1

= 12.288MHz, f

FREQUENCY (Hz)

0dBFS, f

20

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 20k

LRCLK

15k10k5k

= 96kHz

MAX9880A toc43

FFT, DAC TO HEADPHONE,

-60dBFS, f

20

NI = 0x6000
DHF = 1

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 20k

= 12.288MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

15k10k5k

= 96kHz

MAX9880A toc44

FFT, DAC TO HEADPHONE,

0dBFS, f

20

PLL MODE

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
020k

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

15k10k5k

= 48kHz

MAX9880A toc45

MAX9880A

Low-Power, High-Performance
Dual I2S Stereo Audio Codec

20 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN,

C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB, AV

VOL

= 0dB,

AV

LO

= 0dB, f

MCLK

= 13MHz, differential output, unless otherwise noted.)

-60dBFS, f

20

PLL MODE

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 20k

FFT, DAC TO HEADPHONE,

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

15k10k5k

= 48kHz

MAX9880A toc46

AMPLITUDE (dB)

-100

-120

-140

FFT, DAC TO HEADPHONE,

0dBFS, f

20

PLL MODE

0

-20

-40

-60

-80

0 20k

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

= 44.1kHz

15k10k5k

MAX9880A toc47

FFT, DAC TO HEADPHONE,

-60dBFS, f

20

PLL MODE

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
020k

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

15k10k5k

= 44.1kHz

MAX9880A toc48

FFT, MICROPHONE TO ADC,

0dBFS, f

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 4000

= 13MHz, f

MCLK

FREQUENCY (Hz)

FFT, MICROPHONE TO ADC,

-60dBFS, f

20

NI = 0x6000

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 20k

= 12.288MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

FREQ1 = 0xA

300020001000

LRCLK

15k10k5k

= 8kHz

= 48kHz

MAX9880A toc49

MAX9880A toc52

FFT, MICROPHONE TO ADC,

-60dBFS, f

0

FREQ1 = 0xA

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 4000

= 13MHz, f

MCLK

FREQUENCY (Hz)

FFT, MICROPHONE TO ADC,

0dBFS, f

20

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140

0 20k

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

LRCLK

300020001000

= 48kHz

PLL MODE

15k10k5k

= 8kHz

MAX9880A toc50

MAX9880A toc53

FFT, MICROPHONE TO ADC,

0dBFS, f

20

NI = 0x6000

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
020k

= 12.288MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

15k10k5k

= 48kHz

MAX9880A toc51

FFT, MICROPHONE TO ADC,

-60dBFS, f

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 20k

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

PLL MODE

15k10k5k

= 48kHz

MAX9880A toc54

MAX9880A

Low-Power, High-Performance

Dual I2S Stereo Audio Codec

______________________________________________________________________________________

21

Typical Operating Characteristics (continued)

(V

AVDD

= V

PVDD

= V

MICVDD

= V

DVDD

= V

DVDDS1

= +1.8V, RL= ∞, headphone load (RL) connected between _OUTP and _OUTN,

C

REF

= 2.2µF, C

MICBIAS

= C

PREG

= C

REG

= 1µF, AV

PRE

= +20dB, AV

PGAM

= 0dB, AV

DAC

= 0dB, AV

LINE

= +20dB, AV

VOL

= 0dB,

AV

LO

= 0dB, f

MCLK

= 13MHz, differential output, unless otherwise noted.)

WIDEBAND FFT, DAC TO HEADPHONE,

0dBFS, f

20

FREQ1 = 0xA

0

-20

-40

-60

-80

AMPLITUDE (dB)

-100

-120

-140
0 120k

= 13MHz, f

MCLK

FREQUENCY (Hz)

ADC IIR HIGHPASS FILTER FREQUENCY

RESPONSE, MODE = 0

20

AVFLT = 0

0

AVFLT = 3

-20

-40

AMPLITUDE (dB)

-60

-80

AVFLT = 4

LRCLK

f

LRCLK

= 8kHz

100k80k20k 40k 60k

= 8kHz

MAX9880A toc55

AMPLITUDE (dB)

-100

-120

-140

MAX9880A toc58

AMPLITUDE (dB)

WIDEBAND FFT, DAC TO HEADPHONE,

-60dBFS, f

0

FREQ1 = 0xA

-20

-40

-60

-80

0 120k

= 13MHz, f

MCLK

FREQUENCY (Hz)

LRCLK

100k80k60k40k20k

DAC IIR/FIR LOWPASS FILTER FREQUENCY

LRCLK

MODE = 1

= 8kHz)

-20

-40

-60

-80

20

RESPONSE (f

0

MODE = 0

= 8kHz

MAX9880A toc56

MAX9880A toc59

DAC IIR HIGHPASS FILTER FREQUENCY

RESPONSE, MODE = 0

20

DVFLT = 0

0

DVFLT = 3

-20

-40

AMPLITUDE (dB)

-60

-80

-100
0 600

DVFLT = 4

FREQUENCY (Hz)

DAC FIR LOWPASS FILTER FREQUENCY

RESPONSE (f

20

0

-20

-40

AMPLITUDE (dB)

-60

-80

LRCLK

f

LRCLK

= 96kHz)

= 8kHz

MAX9880A toc57

500400300200100

MAX9880A toc60

-100
0 600

FREQUENCY (Hz)

ADC IIR/FIR LOWPASS FILTER FREQUENCY

20

RESPONSE (f

0

-20

-40

AMPLITUDE (dB)

-60

-80

-100
3000 4000

MODE = 0

FREQUENCY (Hz)

LRCLK

MODE = 1

= 8kHz)

MAX9880A toc62

-100
20k 48k

FREQUENCY (Hz)

SHUTDOWN TO FULL OPERATION

(SE CLICKLESS)

SCL (1V/div)LOUTP (500mV/div)

TIME (40ms/div)

44k40k36k32k28k24k

MAX9880A toc63

500400300200100

-100
3000 4000

FREQUENCY (Hz)

3800360034003200

SHUTDOWN TO FULL OPERATION

(DIFFERENTIAL)

MAX9880A toc61

SCL (1V/div)LOUTP (500mV/div)

3800360034003200

TIME (4ms/div)