MAXIM MAX9888 Technical data

19-5235; Rev 1; 2/11

with FlexSound Technology

General Description

The MAX9888 is a full-featured audio CODEC whose high performance and low power consumption make it ideal for portable applications.

Class D speaker amplifiers provide efficient amplification for two speakers. Low radiated emissions enable completely filterless operation. Integrated bypass switches optionally connect an external amplifier to the transducer when the Class D amplifiers are disabled.

®

DirectDrive ground-referenced output, eliminating the need for large DC-blocking capacitors. 1.8V headphone operation ensures low power consumption. The device also includes a differential receiver amplifier.

Three differential analog microphone inputs are available as well as support for two PDM digital microphones. Integrated switches allow microphone signals to be routed out to external devices. Two flexible single-ended or differential line inputs may be connected to an FM radio or other sources.

Integrated FlexSoundK technology improves loudspeaker performance by optimizing the signal level and frequency response while limiting the maximum distortion and power at the output to prevent speaker damage. Automatic gain control (AGC) and a noise gate optimize the signal level of microphone input signals to make best use of the ADC dynamic range.

The device is fully specified over the -40NC to +85NC extended temperature range.

DirectDrive is a registered trademark and FlexSound is a trademark of Maxim Integrated Products, Inc.

headphone amplifiers provide a true

Stereo Audio CODEC

Features

S 100dB DR Stereo DAC (8kHz < fS < 96kHz)

91dB DR Stereo ADC (8kHz < f

S

Stereo Low EMI Class D Amplifiers

S

950mW/Channel (8I, V

Stereo DirectDrive Headphone Amplifiers

S

Differential Receiver Amplifier

S

2 Stereo Single-Ended/Mono Differential Line

S

Inputs

3 Differential Microphone Inputs

S

FlexSound Technology

S

5-Band Parametric EQ Automatic Level Control (ALC) Excursion Limiter Speaker Power Limiter Speaker Distortion Limiter Microphone Automatic Gain Control and Noise Gate

Dual I

S

Asynchronous Digital Mixing

S

Supports Master Clock Frequencies from 10MHz

S

2

S/PCM/TDM Digital Audio Interfaces

to 60MHz

RF Immune Analog Inputs and Outputs

S

Extensive Click-and-Pop Reduction Circuitry

S

2

I

C Control Interface

S

63 WLP Package (3.80mm x 3.30mm, 0.4mm Pitch)

S

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX9888EWY+

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

-40NC to +85NC

< 96kHz)

S

SPKVDD_

= 4.2V)

63 WLP

MAX9888

Simplified Block Diagram

2

I2C

CONTROL

DIGITAL MICROPHONE

LINEIN A1

LINEIN A2

LINEIN B1

LINEIN B2

INPUT

MIX

+

FlexSound TECHNOLOGY

• 5-BAND PARAMETRIC EQ

• AUTOMATIC LEVEL CONTROL

ADC

• LOUDSPEAKER PROCESSING

• EXCURSION LIMITER

• THD LIMITER

• POWER LIMITER

• MICROPHONE PROCESSING

• AUTOMATIC GAIN CONTROL

• NOISE GATE

ADC

• ASYNCHRONOUS DIGITAL MIXING

_______________________________________________________________ Maxim Integrated Products 1

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.

S/PCM

I

DIGITAL

AUDIO

INTERFACE

MAX9888

I2S/PCM

DIGITAL

AUDIO

INTERFACE

RECEIVER AMP

SPEAKER AMP

DAC

SPEAKER AMP

MIX

HEADPHONE AMP

Stereo Audio CODEC with FlexSound Technology

TABLE OF CONTENTS

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Features

Simplified Block Diagram

Ordering Information

Functional Diagram

MAX9888

Absolute Maximum Ratings

Electrical Characteristics

Digital Input/Output Characteristics

Input Clock Characteristics

Audio Interface Timing Characteristics

Digital Microphone Timing Characterstics

2

I

Power Consumption

Typical Operating Characteristics

Pin Configuration

Pin Description

Detailed Description

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C Timing Characterstics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

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Microphone to ADC

Line to ADC

Digital Loopback

Analog Loopback

DAC to Receiver

Line to Receiver

DAC to Speaker

Line to Speaker

DAC to Headphone

Line to Headphone

Speaker Bypass Switch

2

C Slave Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

I

Registers

Power Management

Microphone Inputs

Line Inputs

ADC Input Mixers

Record Path Signal Processing

Microphone AGC

Noise Gate

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2

Stereo Audio CODEC

with FlexSound Technology

TABLE OF CONTENTS (continued)

ADC Record Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

Sidetone

Digital Audio Interfaces

Clock Control

Passband Filtering

Playback Path Signal Processing

Playback Level Control

DAC Input Mixers

Preoutput Signal Path

Receiver Amplifier

Speaker Amplifiers

Speaker Amplifier Signal Processing

Headphone Amplifier

Output Bypass Switches

Click-and-Pop Reduction

Jack Detection

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68

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Automatic Level Control

Parametric Equalizer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85

Preoutput Mixer

Preoutput PGA

Receiver Output Volume

Receiver Output Mixer

Speaker Output Volume

Speaker Output Mixers

Excursion Limiter

Power Limiter

Distortion Limiter

Headphone Output Mixers

Headphone Output Volume

Jack Insertion

Accessory Button Detection

Jack Removal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

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MAX9888

3

Stereo Audio CODEC with FlexSound Technology

TABLE OF CONTENTS (continued)

Battery Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Device Status

Device Revision

2

C Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

I

MAX9888

Bit Transfer

START and STOP Conditions

Early STOP Conditions

Slave Address

Acknowledge

Write Data Format

Read Data Format

Applications Information

Typical Operating Circuits

Analog Microphones and Bypass Switch

Digital Microphones and Receiver Amplifier

Filterless Class D Operation

RF Susceptibility

Startup/Shutdown Sequencing

Component Selection

Optional Ferrite Bead Filter

Input Capacitor

Charge-Pump Capacitor Selection

Charge-Pump Flying Capacitor

Charge-Pump Holding Capacitor

Unused Pins

Recommended PCB Routing

Supply Bypassing, Layout, and Grounding

WLP Applications Information

Package Information

Revision History

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .109

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .115

4

Stereo Audio CODEC

with FlexSound Technology

Functional Diagram

G6

F6

REF F7

REG

PREG

RECP/

A6

RXINP

RECN/

B6

RXINN

A3, B3

SPKLVDD

A4, B4

SPKLP

A5, B5

SPKLN

C4, C5

SPKLGND

SPKRVDD C3, D3

SPKRP C1, C2

SPKRN A1, B1

SPKRGND A2, B2

HPL B9

HPR C9

HPSNS C6

A8

HPVDD A7

HPGND

MAX9888

BIAS

0dB

MAX9888

G5

AVDD

G4

DVDD

SDIN2

SDOUT2

LRCLK2

LRCLKS2 SDOUTS2 SDINS2 DVDDS2

PORT S1 PORT S2

LRCLKS1 SDOUTS1 SDINS1 DVDDS1 BCLKS2

D1 D2 E4 D4 E1 F2 F3 G1 G3 G2

BCLKS1

BCLK2

SDIN1

SDOUT1

LRCLK1

BCLK1

SEL1 SEL2

DATA

INPUT

HIZOFF2

DATA

OUTPUT

MAS2

FRAME

CLOCK

BIT

CLOCK

MAS2

DAI2

DATA

INPUT

HIZOFF1

DATA

OUTPUT

MAS1

FRAME

CLOCK

BIT

CLOCK

MAS1

DAI1

LBEN1

RECVOL:

+8dB TO -62dB

MIX

FlexSound

TECHNOLOGY

DV1G:

0/6/12/18dB

+

LTEN1

DVST:

0dB TO -60dB

MUX

LBEN2

RECBYP

RECEN

MIXREC

+

MIX

SIDETONE

MULTI BAND ALC

NOISE GATE

DSTS

SPKBYP

BATTERY ADC

SPVOLL:

+8dB TO -62dB

DVEQ2:

0dB TO -15dB

DVEQ1:

0dB TO -15dB

AUDIO/

GAIN

AUTOMATIC

VOICE

+6dB

MIX

5-BAND

PARAMETRIC

5-BAND

PARAMETRIC

FILTERS

CONTROL

EQ

MODE1

ADLEN

AVFLT

MIX

POWER/

SPLEN

MIXSPL

DACL

MIX

EXCURSION LIMITER

EQ1EN EQ2EN

AVLG: 0/6/12/18dB

ADCL

DISTORTION LIMITER

DALEN

MIXDAL

AUDIO/

FILTERS

DCB2

DV2:

0dB TO -15dB

AVL: 3dB TO -12dB

MIXADL

HPVOLR:

HPLEN

MIXHPL

+9dB

PREOUT1

0dB TO -23dB

MIX

MIXOUT1

+3dB TO -67dB

MIX

PGAOUT2:

0dB TO -23dB

MIX

HPREN

MIXHPR

+9dB

PREOUT2

PGAOUT3:

MIXOUT2

HPVOLL:

+3dB TO -67dB

+6dB

SPREN

MIX

SPVOLR:

+8dB TO -62dB

MIX

MIXSPR

DACR

DAREN

MIX

MIXDAR

VOICE

AUDIO/

FILTERS

MODE1

DVFLT

DV1:

0dB TO -15dB

AVRG: 0/6/12/18dB

AVR: 3dB TO -2dB

PGAOUT1:

ADCR

ADREN

MIX

MIXADR

CHARGE

0dB TO -23dB

MIX

PUMP

+9dB

PREOUT3

MIXOUT3

B7B8A9G7F1

C1N C1P

HPVSSAGND

DGND

PSCLK

CLOCK

MCLK

E5F5F4 E2

IRQ

C

2

I

SCL

SDA

JACK

DETECTION

JACKSNS

D6

JDETEN

REG

MBEN

MICBIAS

G8

CONTROL

PGAM1:

MIC1P/

DIGMICDATA

E8

+20dB TO 0dB

MIC1N/

DIGMICCLK

F8

PA1EN:

EXTMIC

0/20/30dB

MIC2BYP

PGAM2:

+20dB TO 0dB

F9 MIC2P

G9 MIC2N

PA2EN:

EXTMIC

0/20/30dB

PGAINA:

+20dB TO -6dB

INABYP

INADIFF

INA1/EXTMICP

E9

PGAINA:

+20dB TO -6dB

INA2/EXTMICN

D9

+

PGAINB:

+20dB TO -6dB

INBDIFF

PGAINB:

+20dB TO -6dB

+

INB2

INB1

C8

D8

5

Stereo Audio CODEC with FlexSound Technology

ABSOLUTE MAXIMUM RATINGS

(Voltages with respect to AGND.) DVDD, AVDD, HPVDD SPKLVDD, SPKRVDD, DVDDS1, DVDDS2 DGND, HPGND, SPKLGND, SPKRGND HPVSS

............................... (HPGND - 2.2V) to (HPGND + 0.3V)

C1N

.................................... (HPVSS - 0.3V) to (HPGND + 0.3V)

C1P

.....................................(HPGND - 0.3V) to (HPVDD + 0.3V)

PREG

MAX9888

..................................................... -0.3V to (AVDD + 0.3V)

REF, MICBIAS

................................. -0.3V to (SPKLVDD + 0.3V)

.........................................-0.3V to +2.2V

..........-0.3V to +6.0V

..............-0.1V to +0.1V

MCLK, SDINS1, SDINS2, JACKSNS,

SDA, SCL, IRQ

LRCLKS1, BCLKS1, SDOUTS1 LRCLKS2, BCLKS2, SDOUTS2

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.

.................................................-0.3V to +6.0V

......... -0.3V to (DVDDS1 + 0.3V)

......... -0.3V to (DVDDS2 + 0.3V)

ELECTRICAL CHARACTERISTICS

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

= T

A

PGAIN_

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

POWER SUPPLY

Supply Voltage Range Guaranteed by PSRR

Total Supply Current (Note 2) I

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

= 2.2FF, C

REF

DACATTN

= 0dB, AV

REC

Full-duplex 8kHz mono, receiver output (Note 3)

DAC playback 48kHz stereo, headphone outputs (Note 3)

DAC playback 48kHz stereo,

VDD

speaker outputs (Note 3)

Full-duplex 48kHz stereo, microphone inputs, headphone outputs (Note 3)

Stereo line playback, IN_DIF = 0, INA1 to HPL, INA2 to HPR, V

REG, INA1, INA2, INB1, INB2, MIC1P/DIGMICDATA,

MIC1N/DIGMICCLK, MIC2P, MIC2N ...............-0.3V to +2.2V

HPSNS

............................... (HPGND - 0.3V) to (HPGND + 0.3V)

HPL, HPR RECP, RECN SPKLP, SPKLN SPKRP, SPKRN

............................(HPVSS - 0.3V) to (HPVDD + 0.3V)

..............(SPKLGND - 0.3V) to (SPKLVDD + 0.3V)

...........(SPKLGND - 0.3V) to (SPKLVDD + 0.3V)

.........(SPKRGND - 0.3V) to (SPKRVDD + 0.3V)

Continuous Power Dissipation (TA = +70NC)

63-Bump WLP (derate 25.6mW/NC above +70NC) Operating Temperature Range Storage Temperature Range Soldering Temperature (reflow)

SPKLVDD

= 0dB, AV

= V

SPKRVDD

MICBIAS

SPK_

= C

PREG

DACGAIN

= 0dB, AV

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

, V

,

AVDD

,

V

SPKLVDD

V

SPKRVDD

V

DVDD

V

HPVDD

V

DVDDS1

V

DVDDS2

= 3.7V. Speaker loads (Z

= C

,

.......................... -40NC to +85NC

............................-65NC to +150NC

......................................+260NC

= 1FF, C

REG

ADCLVL

C1N-C1P

= 0dB, AV

ADCGAIN

2.8 5.5

1.65 1.8 2.0

1.65 3.6

Analog 6.37 10 Speaker 1.98 3.5 Digital 1.49 3 Analog 2.71 4 Speaker 1.65 2.5 Digital 2.93 4.5 Analog 1.85 3 Speaker 8.22 18 Digital 2.94 5

Analog 12.75 18

Speaker 1.7 3

Digital 3.75 5.5

Analog 5.11 7 Speaker 0.58 1

= 0V

MCLK

Digital 0.03 0.06

........2.05W

) connected

SPK

= 1FF, C

HPVSS

= 0dB,

V

mA

6

Stereo Audio CODEC

with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

A

PGAIN_

= T

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Shutdown Supply Current (Note 2)

REF Voltage 2.5 V PREG Voltage 1.6 V REG Voltage 0.7 V

Shutdown to Full Operation

MICROPHONE TO ADC PATH

Dynamic Range (Note 4) DR

Total Harmonic Distortion + Noise

Common-Mode Rejection Ratio CMRR V

Power-Supply Rejection Ratio PSRR

Path Phase Delay

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

T

A

REF

DACATTN

REC

= +25NC

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

SLEW = 0 SLEW = 1

= 8kHz, MODE = 0 (IIR voice),

f

S

THD+N

AV

MICPRE_

V

IN

f

= 8kHz, f = 1kHz

S

MICPRE_

AV

MICPRE_

= 0dB

= 0.1V

, MCLK = 12.288MHz,

P-P

= 0dB, VIN = 1V

= +30dB, VIN = 32mV

f = 1kHz

= 100mV

IN

V

= 1.65V to 2.0V, input referred, MIC

AVDD

, f = 217Hz 65 dB

P-P

inputs floating

f = 217Hz, V

RIPPLE

= 100mV

input referred

f = 1kHz, V

RIPPLE

= 100mV

input referred

f = 10kHz, V

RIPPLE

= 100mV

input referred

MODE = 0 (IIR voice)

8kHz 1kHz, 0dB input, highpass filter disabled measured from analog input to digital output

MODE = 0 (IIR voice)

16kHz

MODE = 1 (FIR audio)

8kHz

MODE = 1 (FIR audio)

48kHz

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

= 0dB,

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

Analog 0.2 2 Speaker 0.1 1 Digital 1 5

30 17

75 88 dB

-77 -65

, f = 1kHz -82

P-P

,

P-P

-71

60 100

P-P

, AV

ADC

= 0dB,

100

91

70

2.2

1.1

4.5

0.76

HPVSS

FA

ms

dBAV

dB

ms

MAX9888

7

Stereo Audio CODEC with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

= T

A

MAX9888

MICROPHONE PREAMP

MICPRE_

= 0dB, AV

PGAIN_

to T

MIN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Full-Scale Input AV

Preamplifier Gain AV

PGA Gain AV

MIC Input Resistance R

MICROPHONE BIAS

MICBIAS Output Voltage V Load Regulation I Line Regulation V

Ripple Rejection

Noise Voltage

MICROPHONE BYPASS SWITCH

On-Resistance R

Total Harmonic Distortion + Noise

Off-Isolation

Off-Leakage Current

LINE INPUT TO ADC PATH

Dynamic Range (Note 4) DR

Total Harmonic Distortion + Noise

Gain Error DC accuracy 1 5 %

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

DACATTN

MICPRE_

REF

REC

= 0dB 1.05 V

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

PA1EN/PA2EN = 01 0

MICPRE_

(Note 5)

PA1EN/PA2EN = 11 29.4 30 30.5

MICPGA_

IN_MIC

MICBIASILOAD

(Note 5)

All gain settings, measured at MIC1P/MIC1N/ MIC2P/MIC2N

LOAD

SPKLVDD

f = 217Hz, V f = 10kHz, V

= 1mA 2.14 2.2 2.25 V = 1mA to 2mA 0.5 11 mV

PGAM1/PGAM2 = 0x00 19.5 20 20.5 PGAM1/PGAM2 = 0x14 0

= 2.8V to 5.5V 100

RIPPLE (SPKLVDD)

A-weighted, f = 20Hz to 20kHz 3.8 P-weighted, f = 20Hz to 4kHz 2.1 f = 1kHz 33

I

= 100mA, INABYP = MIC2BYP = 1,

ON

THD+N

MIC1_

V

MIC2_

V

IN

= V

= 2V

= (0V, V

INA_

, VCM = 0.9V, RL = 10kI,

P-P

AVDD

f = 1kHz, INABYP = MIC2BYP = 1

V

IN

= 2V

, VCM = 0.9V, RL = 10kI,

P-P

f = 1kHz

V

= (0V, V

MIC1_

V

MIC2_/VINA_

= 48kHz, MCLK = 12.288MHz, MODE = 1

f

S

= (V

AVDD

),

, 0V)

(FIR audio)

THD+N V

IN

= 1V

, f = 1kHz -77 dB

P-P

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

SPK

= 1FF, C

ADCGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

30 50

= 100mV = 100mV

)

P-P

92 83

3.5 20

-80 dB

60 dB

-2.5 +2.5

91 dB

) connected

HPVSS

= 0dB,

P-P

dBPA1EN/PA2EN = 10 19.5 20 20.5

dB

kI

FV

dB

FV

RMS

nV/√Hz

I

FA

8

Stereo Audio CODEC

with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

A

PGAIN_

= T

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

LINE INPUT PREAMP

Full-Scale Input V

Level Adjust Gain AV

Input Resistance R

Feedback Resistance R

ADC LEVEL CONTROL

ADC Level Adjust Range AV ADC Level Adjust Step Size 1 dB ADC Gain Adjust Range AV ADC Gain Adjust Step Size 6 dB

ADC DIGITAL FILTERS VOICE MODE IIR LOWPASS FILTER (MODE1 = 0)

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation (Note 6) f > f

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

IN

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

AV AV

REF

DACATTN

REC

= 0dB 1

PGAIN_

= -6dB 1.4

PGAIN_

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

PGAINA/PGAINB = 0x0 19 20 21

PGAINA/PGAINB = 0x1 13 14 15

PGAINA/PGAINB = 0x2 (Note 5) 2 3 4

PGAIN_

PGAINA/PGAINB = 0x3

PGAINA/PGAINB = 0x4 -4 -3 -2

PGAINA/PGAINB = 0x5, 0x6, 0x7 -7 -6 -5

IN

IN_FB

ADCLVL

ADCGAIN

AV AV AV AV AV AV

INAEXT/INBEXT = 1

AVL/AVR = 0xF to 0x0 (Note 5) -12 +3 dB

AVLG/AVRG = 00 to 11 (Note 5) 0 18 dB

= +20dB 14.6 21 27.4

PGAIN_

= +14dB 20

PGAIN_

= +3dB 20

PGAIN_

= 0dB 7.3 10 13.7

PGAIN_

= -3dB 20

PGAIN_

= -6dB 20

PGAIN_

T T

Ripple limit cutoff

PLP

-3dB cutoff

PLP

SLP

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

= 0dB,

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

0

= +25NC

A

= T

A

MIN

= +25NC

T

A

to T

MAX

18.5 20 21.5

17.5 23

0.441 x f

s

0.449 x f

s

-0.1 +0.1 dB

0.47 x f

s

74 dB

HPVSS

V

MAX9888

P-P

dB

kI

Hz

9

Stereo Audio CODEC with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

= T

A

MAX9888

VOICE MODE IIR HIGHPASS FILTER (MODE1 = 0)

MICPRE_

= 0dB, AV

PGAIN_

to T

MIN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Passband Cutoff (-3dB from Peak)

Stopband Cutoff (-30dB from Peak)

DC Attenuation DC

STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1 = 0, LRCLK < 50kHz)

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation (Note 6) f < f

ADC STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1 = 1, LRCLK > 50kHz)

Passband Cutoff f

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

REF

DACATTN

REC

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

AVFLT = 0x1 (elliptical tuned for f

= 16kHz + 217Hz notch)

s

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

f

AHPPB

AVFLT = 0x3 (elliptical tuned for f

= 8kHz + 217Hz notch)

s

AVFLT = 0x4 (500Hz Butterworth tuned for f

= 8kHz)

s

AVFLT = 0x5 (fs/240 Butterworth)

AVFLT = 0x1 (elliptical tuned for f

= 16kHz + 217Hz notch)

s

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

f

AHPSB

AVFLT = 0x3 (elliptical tuned for f

= 8kHz + 217Hz notch)

s

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

AVFLT = 0x5 (fs/240 Butterworth)

ATTEN

AVFLT ≠ 000

Ripple limit cutoff

PLP

-6.02dB cutoff

PLP

SLP

Ripple limit cutoff

PLP

-3dB cutoff

= V

SPKRVDD

= C

PREG

DACGAIN

= 0dB, AV

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

= 3.7V. Speaker loads (Z

= C

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

0.0139 x f

s

0.0156 x f

s

0.0279 x f

s

0.0312 x f

s

0.002 x f

s

90 dB

0.43 x f

s

0.48 x f

s

0.5 x f

s

-0.1 +0.1 dB

60 dB

0.208 x f

s

0.28 x f

s

) connected

SPK

= 1FF, C

ADCGAIN

0.0161 x f

s

0.0319 x f

s

0.0321 x f

s

0.0632 x f

s

0.0043 x f

s

0.58 x f

s

HPVSS

= 0dB,

Hz

Hz-3dB cutoff

Hz

10

Stereo Audio CODEC

with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

A

PGAIN_

= T

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation f < f

ADC STEREO AUDIO MODE DC-BLOCKING HIGHPASS FILTER (MODE1 = 1)

Passband Cutoff (-3dB from Peak)

DC Attenuation DC

MICROPHONE AUTOMATIC GAIN CONTROL

AGC Hold Duration

AGC Attack Time

AGC Release Time

AGC Threshold Level AGCTH = 0x0 to 0xF -3 +18 dB AGC Threshold Step Size 1 dB AGC Gain (Note 5) 0 20 dB

ADC NOISE GATE

NG Threshold Level ANTH = 0x3 to 0xF, referred to 0dBFS -64 -16 dB NG Attenuation (Note 5) 0 12 dB

ADC-TO-DAC DIGITAL SIDETONE (MODE = 0)

Sidetone Gain Adjust Range AV

Sidetone Gain Adjust Step Size 2 dB

Sidetone Path Phase Delay

ADC-TO-DAC DIGITAL LOOP-THROUGH PATH

Dynamic Range (Note 4) DR

Total Harmonic Distortion THD

DAC LEVEL CONTROL

DAC Attenuation Range AV DAC Attenuation Step Size DAC Gain Adjust Range AV DAC Gain Adjust Step Size 6 dB

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

f

AHPPB

= V

= J, Z

= 0dB, AV

HP_

SLP

Atten

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

REF

DACATTN

REC

PLP

SLP

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

AVFLT ≠ 000

AGCHLD = 01 50 AGCHLD = 11 400 AGCATK = 00 2 AGCATK = 11 123 AGCRLS = 000 0.078 AGCRLS = 111 10

STGA

DVST = 0x01 -0.5 DVST = 0x1F -60.5

1kHz, 0dB input, highpass filter disabled

= 48kHz, MCLK = 12.288MHz, MODE = 1

f

S

(FIR audio)

f = 1kHz, f

= 48kHz, MCLK = 12.288MHz,

S

MODE = 1 (FIR audio)

DACATTN

DACGAIN

DV1DV2 = 0xF to 0x0 (Note 5) -15 0 dB

DV1G = 00 to 11 (Note 5) 0 18 dB

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

HPVSS

= 0dB,

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

-0.1 +0.1 dB

0.417 x f

s

60 dB

0.000125 x fs

90 dB

8kHz 2.2 16kHz 1.1

89 dB

-71 -66 dB

1 dB

MAX9888

Hz

ms

s

dB

ms

11

Stereo Audio CODEC with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

= T

A

MAX9888

MICPRE_

= 0dB, AV

PGAIN_

to T

MIN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DAC DIGITAL FILTERS VOICE MODE IIR LOWPASS FILTER (MODE1 = 0)

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation (Note 6) f > f

VOICE MODE IIR HIGHPASS FILTER (MODE1 = 0)

Passband Cutoff (-3dB from Peak)

Stopband Cutoff (-30dB from Peak)

DC Attenuation DC

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

REF

DACATTN

REC

SPKLVDD

= 2.2FF, C

= 0dB, AV

Ripple limit cutoff

PLP

-3dB cutoff

PLP

SLP

DVFLT = 0x1 (elliptical tuned for f

= 16kHz + 217Hz notch)

s

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

f

DHPPB

DVFLT = 0x3 (elliptical tuned for f

= 8kHz + 217Hz notch)

s

DVFLT = 0x4 (500Hz Butterworth tuned for f

= 8kHz)

s

DVFLT = 0x5 (fs/240 Butterworth)

DVFLT = 0x1 (elliptical tuned for f

= 16kHz + 217Hz notch)

s

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

f

DHPSB

DVFLT = 0x3 (elliptical tuned for f

= 8kHz + 217Hz notch)

s

DVFLT = 0x4 (500Hz Butterworth tuned for f

= 8kHz)

s

DVFLT = 0x5 (fs/240 Butterworth)

ATTEN

DVFLT ≠ 000

= V

SPKRVDD

MICBIAS

SPK_

= C

DACGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

0.448 x f

s

0.451 x f

s

-0.1 +0.1 dB

0.476 x f

s

75 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

0.0139 x f

s

0.0156 x f

s

0.0279 x f

s

0.0312 x f

s

0.002 x f

s

85 dB

HPVSS

= 0dB,

Hz

12

Stereo Audio CODEC

with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

A

PGAIN_

= T

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1/DHF2 = 0, LRCLK < 50kHz)

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation (Note 6) f > f

STEREO AUDIO MODE FIR LOWPASS FILTER (MODE1 = 1, DHF1/DHF2 = 1 for LRCLK > 50kHz)

Passband Cutoff f

Passband Ripple f < f

Stopband Cutoff f

Stopband Attenuation (Note 6) f < f

STEREO AUDIO MODE DC-BLOCKING HIGHPASS FILTER

Passband Cutoff (-3dB from Peak)

DC Attenuation DC

AUTOMATIC LEVEL CONTROL

Dual Band Lowpass Corner Frequency

Dual Band Highpass Corner Frequency

Gain Range 0 12 dB Low Signal Threshold ALCTH = 111 to 001 -48 -12 dBFS

Release Time

PARAMETRIC EQUALIZER

Number of Bands 5 Bands Per Band Gain Range -12 +12 dB Preattenuator Gain Range (Note 5) -15 0 dB Preattenuator Step Size 1

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

REF

DACATTN

REC

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

Ripple limit cutoff

PLP

-6.02dB cutoff

PLP

SLP

Ripple limit cutoff

PLP

-3dB cutoff

PLP

SLP

f

DHPPB

ATTEN

DVFLT ≠ 000 (DAI1), DCB2 = 1 (DAI2)

ALCMB = 1 5 kHz

ALCRLS = 101 0.25 ALCRLS = 000 8

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

HPVSS

= 0dB,

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

0.43 x f

s

0.47 x f

s

Hz-3dB cutoff

0.5 x f

s

-0.1 +0.1 dB

0.58 x f

Hz

s

60 dB

0.24 x f

0.31 x f

s

Hz

-0.1 +0.1 dB

0.477 x f

Hz

s

60 dB

0.000104 x f

Hz

s

90 dB

s

dB

MAX9888

13

Stereo Audio CODEC with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

= T

A

MAX9888

DAC-TO-RECEIVER AMPLIFIER PATH

MICPRE_

= 0dB, AV

PGAIN_

to T

MIN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Dynamic Range (Note 4) DR f

Total Harmonic Distortion + Noise

Click and Pop Level K

PREOUTPUT MIXERS

Level Adjust Gain AV

Level Adjust Step Size 2 dB Mute Attenuation f = 1kHz 85 dB

LINE INPUT-TO-RECEIVER AMPLIFIER PATH

Dynamic Range (Note 4) DR Referenced to full-scale output level 92 dB Total Harmonic Distortion +

Noise

Power-Supply Rejection Ratio PSRR

Click-and-Pop Level K

RECEIVER AMPLIFIER

Output Power P Full-Scale Output (Note 7) 1 V

Volume Control AV

Volume Control Step Size

Mute Attenuation f = 1kHz 95 dB Output Offset Voltage V

Capacitive Drive Capability No sustained oscillations

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

THD+N

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

= 48kHz, MCLK = 12.288MHz, f = 1kHz 96 dB

S

f = 1kHz, P

REF

DACATTN

REC

OUT

SPKLVDD

= 2.2FF, C

= 0dB, AV

= 25mW, R

MICBIAS

SPK_

Peak voltage, A-weighted, 32 samples per second, AV

CP

REC

= 0dB

PGAOUTA/PGAOUTB/

PGAOUT_

(Note 5)

PGAOUTC = 0x0 PGAOUTA/PGAOUTB/

PGAOUTC = 0xC

THD+N -70 dB

V

SPKLVDD

f = 217Hz, V f = 1kHz, V f = 10kHz, V

= 2.8V to 5.5V 54 89

= 100mV

RIPPLE

= 100mV

RIPPLE

= 100mV

RIPPLE

Peak voltage, A-weighted, 32 samples per second, AV

CP

REC

= 0dB

R

OUT

REC

= 32I, f = 1kHz, THD = 1%

REC

(Note 5)

+8dB to +6dB 0.5 +6dB to +0dB 1 0dB to -14dB 2

-14dB to -38dB 3

-38dB to -62dB 4

AV

OS

REC

= -62dB

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

SPK

= 1FF, C

ADCGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

REC

= 32I

-70 -63 dB

Into shutdown -70

Out of shutdown -73

0

-25 -23.4 -22

P-P

-63

-65

Into shutdown -57

Out of shutdown -55

100 mW

RECVOL = 0x00 -65 -62 -58 RECVOL = 0x1F

T

= +25NC

A

R

= 32I

REC

= J

R

REC

+7.5 +8 +8.5

±0.13 ±1

500 100

) connected

HPVSS

= 0dB,

dBV

dB

dBV

RMS

dB

mV

pF

14

Stereo Audio CODEC

with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

A

PGAIN_

= T

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DAC-TO-SPEAKER AMPLIFIER PATH

Total Harmonic Distortion + Noise

Crosstalk

Output Noise A-weighted 43

Click-and-Pop Level K

LINE INPUT-TO-SPEAKER AMPLIFIER PATH

Total Harmonic Distortion + Noise

Output Noise A-weighted 56

Power-Supply Rejection Ratio PSRR

Click-and-Pop Level K

SPEAKER AMPLIFIER

Output Power P

Full-Scale Output (Note 7) 2 V

Volume Control (Note 5) AV

Volume Control Step Size

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

THD+N

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

f = 1kHz, P

REF

DACATTN

REC

OUT

SPKLVDD

= 2.2FF, C

= 0dB, AV

= 250mW, Z

MICBIAS

SPK_

SPKL to SPKR and SPKR to SPKL,

= 640mW, f = 1kHz

P

OUT

Peak voltage, A-weighted, 32 samples per second,

CP

AV

= 0dB

SPK_

THD+N

f = 1kHz, P

V

SPKLVDD

f = 217Hz, V f = 1kHz, V f = 10kHz, V

= 200mW, Z

OUT

= V

RIPPLE

= 2.8V to 5.5V 43 60

RIPPLE

= 100mV 75

= 100mV 73

= 100mV 50

Peak voltage, A-weighted, 32 samples per second,

CP

AV

= 0dB

SPK_

V V

V

OUT

f = 1kHz, THD = 1%, Z

= 8I + 68FH

SPK

V

V V

SPK_

SPVOLL/SPVOLR = 0x00 -69 -64 -59 SPVOLL/SPVOLR = 0x1F +8dB to +6dB 0.5 +6dB to +0dB 1 0dB to -14dB 2

-14dB to -38dB 3

-38dB to -64dB 4

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

= 8I + 68FH

SPK

-71 dB

-75

Into shutdown -65

Out of shutdown -65

= 8I + 68FH

SPK

-66 dB

Into shutdown -48

Out of shutdown -50

SPKLVDD SPKRVDD

=

= 5.0V

=

= 4.2V

=

= 3.7V

=

= 3.2V

1370

954

733

544

+7.5 +8 +8.5

HPVSS

= 0dB,

dB

FV

RMS

dBV

FV

RMS

dB

dBV

mW

RMS

dB

MAX9888

15

Stereo Audio CODEC with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

= T

A

MAX9888

MICPRE_

= 0dB, AV

PGAIN_

to T

MIN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Mute Attenuation f = 1kHz 86 dB Output Offset Voltage V

EXCURSION LIMITER

Upper-Corner Frequency Range DHPUCF = 001 to 100 400 1000 Hz Lower-Corner Frequency DHPLCF = 01 to 10 400 Hz

Biquad Minimum Corner Frequency

Threshold Voltage

Release Time

POWER LIMITER

Attenuation -64 dB

Threshold

Time Constant 1 t

Time Constant 2 t

Weighting Factor k

DISTORTION LIMITER

Distortion Limit

Release Time Constant

DAC-TO-HEADPHONE AMPLIFIER PATH

Dynamic Range (Note 4) DR

Total Harmonic Distortion + Noise

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

OS

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

AV

REF

DACATTN

REC

= -64dB, TA = +25NC

SPK_

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

DHPUCF = 000 (fixed mode) 100 DHPUCF = 001 200 DHPUCF = 010 300 DHPUCF = 011 400 DHPUCF = 100 500

= 8I + 68FH,

Z

SPK

V

SPKLVDD

5.5V, AV

= V

SPK_

SPKRVDD

= +8dB

=

ALCRLS = 101 0.25 ALCRLS = 000 4

= 8I + 68FH,

Z

SPK

PWR1

PWR2

PWR

V

SPKLVDD

5.5V, AV

PWRT1 = 0x1 0.5 PWRT1 = 0xF 8.7 PWRT2 = 0x1 to 0xF 0.5 PWRT2 = 0xF 8.7 PWRK = 000 to 111 12.5 100 %

= V

SPK_

SPKRVDD

= +8dB

=

THDCLP = 0x1 < 1 THDCLP = 0xF 24 THDT1 = 000 THDT1 = 111 6.2

Master or slave mode 100 Slave mode 94

= 20mW

= 1

, RHP = 10kI

VRMS

THD+N

= 48kHz, MCLK =

f

S

12.288MHz

f

= 48kHz, MCLK = 12.288MHz,

S

f = 1kHz, P

f

= 48kHz, MCLK = 12.288MHz,

S

f = 1kHz, V

OUT

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

SPK

= 1FF, C

ADCGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

±0.25 ±1.25

DHPTH = 000 0.34

DHPTH = 111 4.95

PWRTH = 0x1 0.05

PWRTH = 0xF 1.80

0.76

R

= 16I

HP

= 32I

HP

-71 -64

-75

-79

) connected

HPVSS

= 0dB,

mV

Hz

V

P

s

W

s

min

%

s

dB

16

Stereo Audio CODEC

with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

A

PGAIN_

= T

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Crosstalk

Power-Supply Rejection Ratio PSRR

DAC Path Phase Delay

Gain Error 1 % Channel Gain Mismatch 0.5 %

Click-and-Pop Level K

LINE INPUT-TO-HEADPHONE AMPLIFIER PATH

Total Harmonic Distortion + Noise

Dynamic Range (Note 4) DR 91 dB

Power-Supply Rejection Ratio PSRR

Click and Pop Level K

HEADPHONE AMPLIFIER

Output Power P

Full-Scale Output (Note 7) 1 V

Volume Control AV

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC

MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

REF

DACATTN

REC

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

f = 1kHz, Input = -1dBFS, R

HPL to HPR and HPR to HPL,

= 5mW, f = 1kHz, RHP = 32I

P

OUT

= V

V

AVDD

f = 217Hz, V f = 1kHz, V f = 10kHz, V

= 1.65V to 2.0V 60 84

HPVDD

= 100mV, AV

RIPPLE

= 100mV, AV

RIPPLE

= 100mV, AV

RIPPLE

MODE = 0 (voice) 8kHz 2.2

1kHz, 0dB input, highpass filter disabled measured from digital input to analog output

MODE = 0 (voice) 16kHz

MODE = 1 (music) 8kHz

MODE = 1 (music) 48kHz

Peak voltage, A-weighted, 32 samples per second,

CP

AV

= 0dB

HP_

THD+N

= 1V

V

IN

P-P

= V

V

AVDD

f = 217Hz, V f = 1kHz, V f = 10kHz, V

, f =1kHz, RHP = 32I

= 1.65V to 2.0V 42 66

HPVDD

= 100mV

RIPPLE

= 100mV

RIPPLE

= 100mV

RIPPLE

Peak voltage, A-weighted, 32 samples per second,

CP

AV

= 0dB

HP_

OUT

f = 1kHz, THD = 1%

TA = +25NC (Note 5)

HP_

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

HPVSS

= 0dB,

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

= 10kI

HP

-82 dB

= 0dB 92

VOL

= 0dB 91

VOL

= 0dB 57

VOL

1.1

4.5

0.76

Into shutdown -66

Out of shutdown

-67

dBV

-70 dB

P-P

62 57 41

Into shutdown -62

dBV

mW

R

HP

R

HP

Out of shutdown

= 32I = 16I

-60

32 40

HPVOL_ = 0x00 -71 -67 -66 HPVOL_ = 0x1F 2.4 3 3.5

MAX9888

dB

ms

dB

RMS

dB

17

Stereo Audio CODEC with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

= T

A

MAX9888

MICPRE_

= 0dB, AV

PGAIN_

to T

MIN

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Volume Control Step Size

Mute Attenuation f = 1kHz 82 dB

Output Offset Voltage V

Capacitive Drive Capability

Charge Pump Oscillator Frequency

SPEAKER BYPASS SWITCH

On-Resistance R

Total Harmonic Distortion + Noise

Off-Isolation

Off-Leakage Current

RECEIVER BYPASS SWITCH

On-Resistance R

Total Harmonic Distortion + Noise

Off-Isolation

Off-Leakage Current

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

REF

DACATTN

REC

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

+3dB to +1dB 0.5 +1dB to -5dB 1

-5dB to -19dB 2

-19dB to -43dB 3

-43dB to -67dB 4

= +25NC

T

OS

f

CP

ON

THD+N

AV

= -67dB

HP_

No sustained oscillations

Slow mode 74

I

= 100mA, SPKBYP = 1,

SPKL_

V

= [0V, V

RXIN_

V

= 2V

IN

Z

= 8I + 68FH, f = 1kHz,

SPK

, VCM = V

P-P

SPKLVDD]

A

T

= T

A

R

HP

R

HP

SPKLVDD

SPKBYP = 1

ON

THD+N

= 2V

V

IN

Z

= 8I + 68FH, f = 1kHz

L

V

RXIN_

V

SPKL_

I

RECP

V

RECN

= 2V

V

IN

R

= 32I, f = 1kHz, RECBYP = 1

L

= 2V

V

IN

R

= 32I, f = 1kHz

L

V

RECP

V

RECN

, VCM = V

P-P

= [0V, V

= [V

SPKLVDD

, 0V]

],

= 100mA, RECBYP = 1,

= [0V, V

, VCM = V

P-P

, VCM = V

P-P

= [0V, V

= [V

SPKLVDD

]

SPKLVDD

],

, 0V]

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

SPK

= 1FF, C

ADCGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

±0.2 ±1

to T

MIN

= 32I = J

MAX

±2

500 100

300 667 900

2.8 4.5

/2,

R

S

R

S

= 10I

= 0I

-77

-60

96

-1 +1

1.2 2

/2,

-66 %

80 dB

-15 +15

) connected

HPVSS

= 0dB,

dB

mV

pF

kHz

I

dB

FA

I

FA

18

Stereo Audio CODEC

with FlexSound Technology

ELECTRICAL CHARACTERISTICS (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV T

A

PGAIN_

= T

MIN

MICPRE_

= 0dB, AV

to T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

JACK DETECTION

JACKSNS High Threshold V

JACKSNS Low Threshold V

JACKSNS Sense Voltage V JACKSNS Sense Resistance R JACKSNS Weak Pullup Current I

JACKSNS Deglitch Period t

BATTERY ADC

Input Voltage Range 2.8 5.5 V LSB Size 0.1 V

= V

HPVDD

= +20dB, AV

PGAOUT_

, unless otherwise noted. Typical values are at TA = +25NC.) (Note 1)

MAX

DVDD

= J, R

HP

= V

DVDDS1

REC MICPGA_

= 0dB, AV

= V

= J, Z

= 0dB, AV

HP_

= +1.8V, V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

REF

DACATTN

REC

SPKLVDD

= 2.2FF, C

= 0dB, AV

MICBIAS

SPK_

MICBIAS enabled

TH1

MICBIAS disabled

MICBIAS enabled

TH2

MICBIAS disabled

SENSE

WPU

GLITCH

MICBIAS disabled V MICBIAS disabled, JDWK = 0 1.7 2.4 2.9 MICBIAS disabled, JDWK = 1 2 5 9.5 JDEB = 00 25 JDEB = 11 200

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

= 0dB,

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS = 1.

0.92 x

V

MICBIAS

0.92 x

V

SPKLVD

0.06 x

V

MICBIAS

0.06 x

V

SPKLVD

V

D

SPKLVDD

V

D

SPKLVDD

0.95 x

MICBIAS

0.95 x

0.10 x

MICBIAS

0.10 x

0.98 x

V

MICBIAS

0.98 x

V

SPKLVD

0.17 x

V

MICBIAS

0.17 x

V

SPKLVD

D

HPVSS

V

V kI FA

ms

MAX9888

DIGITAL INPUT/OUTPUT CHARACTERISTICS

(V

= V

AVDD

otherwise noted. Typical values are at T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MCLK

Input High Voltage V Input Low Voltage V Input Leakage Current I Input Capacitance 10 pF

SDINS1, BCLKS1, LRCLKS1—INPUT

Input High Voltage V

Input Low Voltage V

Input Hysteresis 200 mV Input Leakage Current I Input Capacitance 10 pF

HPVDD

= V

DVDD

= V

DVDDS1

IH

IL

, I

IH

IL

, I

IH

= V

= +25NC.) (Note 1)

A

IL

= 1.65V to 2.0V, V

DVDDS2

V

= 2.0V, VIN = 0V, 5.5V, TA = +25°C -1 +1 FA

DVDD

V

= 3.6V, VIN = 0V, 3.6V; TA = +25°C -1 +1 FA

DVDDS1

SPKLVDD

= V

SPKRVDD

DVDDS1

= 3.7V, TA = T

MIN

to T

MAX

, unless

1.2 V

0.6 V

0.7 x

0.29 x

DVDDS1

V

19

Stereo Audio CODEC with FlexSound Technology

DIGITAL INPUT/OUTPUT CHARACTERISTICS (continued)

(V

= V

AVDD

otherwise noted. Typical values are at T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

BCLKS1, LRCLKS1, SDOUTS1—OUTPUT

Output Low Voltage V

Output High Voltage V

MAX9888

Input Leakage Current I

SDINS2, BCLKS2, LRCLKS2—INPUT

Input High Voltage V

Input Low Voltage V

Input Hysteresis 200 mV Input Leakage Current I Input Capacitance 10 pF

BCLKS2, LRCLKS2, SDOUTS2—OUTPUT

Output Low Voltage V

Output High Voltage V

Input Leakage Current I

SDA, SCL—INPUT

Input High Voltage V

Input Low Voltage V

Input Hysteresis 210 mV Input Leakage Current I Input Capacitance 10 pF

SDA, IRQ—OUTPUT

Output High Current I

Output Low Voltage V

DIGMICDATA—INPUT

Input High Voltage V

Input Low Voltage V

Input Hysteresis 125 mV Input Leakage Current I Input Capacitance 10 pF

HPVDD

= V

DVDD

= V

DVDDS1

OL

OH

, I

IH

IL

, I

IH

OL

OH

, I

IH

IL

, I

IH

OH

OL

IH

IL

, I

IH

= V

= +25NC.) (Note 1)

A

IL

= 1.65V to 2.0V, V

DVDDS2

V

= 1.65V, IOL = 3mA 0.4 V

DVDDS1

= 1.65V, IOH = 3mA

DVDDS1

= 2.0V, VIN = 0V, 5.5V; TA = +25°C,

DVDD

high-impedance state

V

= 3.6V, VIN = 0V, 3.6V; TA = +25°C -1 +1 FA

DVDDS2

= 1.65V, IOL = 3mA 0.4 V

DVDDS2

= 1.65V, IOH = 3mA

DVDDS2

= 2.0V, VIN = 0V, 5.5V; TA = +25NC,

DVDD

high-impedance state

V

= 2.0V, VIN = 0V, 5.5V, TA = +25NC -1 +1 FA

DVDD

V

= 5.5V, TA = +25°C 1 mA

OUT

V

= 1.65V, IOL = 3mA

DVDD

V

= 2.0V, VIN = 0V, 2.0V; TA = +25°C -25 +25 FA

DVDD

SPKLVDD

= V

SPKRVDD

DVDDS1

DVDDS2

= 3.7V, TA = T

MIN

to T

- 0.4

-1 +1 FA

0.7 x

0.29 x

DVDDS2

- 0.4

-1 +1 FA

0.7 x

DVDD

0.3 x

DVDD

0.2 x

DVDD

0.65 x DVDD

0.35 x DVDD

MAX

, unless

V

20

Stereo Audio CODEC

with FlexSound Technology

DIGITAL INPUT/OUTPUT CHARACTERISTICS (continued)

(V

= V

AVDD

otherwise noted. Typical values are at T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DIGMICCLK—OUTPUT

Output Low Voltage V

Output High Voltage V

INPUT CLOCK CHARACTERISTICS

(V

= V

AVDD

noted. Typical values are at T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MCLK Input Frequency f

MCLK Input Duty Cycle

Maximum MCLK Input Jitter 100 ps

LRCLK Sample Rate (Note 8)

DAI1 LRCLK Average Frequency Error (Note 9)

DAI2 LRCLK Average Frequency Error (Note 9)

PLL Lock Time

Maximum LRCLK Jitter to Maintain PLL Lock

Soft-Start/Stop Time 10 ms

HPVDD

= V

DVDD

= V

DVDDS1

= V

DVDDS1

= +25NC.) (Note 1)

A

= V

= +25NC.) (Note 1)

A

OL

OH

= V

MCLK

= 1.65V to 2.0V, V

DVDDS2

V

= 1.65V, IOL = 1mA 0.4 V

DVDD

V

= 1.65V, IOH = 1mA

DVDD

= +1.8V, V

DVDDS2

PSCLK = 01 40 50 60 PSCLK = 10 or 11 30 70

DHF_ = 0 8 48 DHF_ = 1 48 96 FREQ1 = 0x8 to 0xF 0 0 FREQ1 = 0x0 -0.025 +0.025

Rapid lock mode 2 7 Nonrapid lock mode 12 25

SPKLVDD

= V

SPKRVDD

= 3.7V, TA = T

DVDD -

0.4

10 60 MHz

-0.025 +0.025 %

MIN

to T

MIN

MAX

, unless otherwise

100 ns

, unless

kHz

MAX9888

V

%

RMS

%

ms

21

Stereo Audio CODEC with FlexSound Technology

AUDIO INTERFACE TIMING CHARACTERISTICS

(V

= V

AVDD

noted. Typical values are at T

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

BCLK Cycle Time t BCLK High Time t BCLK Low Time t

MAX9888

BCLK or LRCLK Rise and Fall Time t SDIN to BCLK Setup Time t LRCLK to BCLK Setup Time t SDIN to BCLK Hold Time t LRCLK to BCLK Hold Time t

Minimum Delay Time from LSB BCLK Falling Edge to High-Impedance State

LRCLK Rising Edge to SDOUT MSB Delay

BCLK to SDOUT Delay t

Delay Time from BCLK to LRCLK t

Delay Time from LRCLK to BCLK After LSB

HPVDD

= V

DVDD

= V

= +25NC.) (Note 1)

A

DVDDS1

SYNCSET

SYNCHOLD

t

HIZOUT

t

SYNCTXCL

CLKSYNC

t

ENDSYNC

= V

BCLK

BCLKH

BCLKL

, t

R

SETUP

HOLD

CLKTX

= 1.65V, V

DVDDS2

SPKLVDD

Slave mode 90 ns Slave mode 20 ns Slave mode 20 ns Master mode, CL = 15pF ns

F

Slave mode 20 ns

Master mode, TDM_ = 1 42 ns

= 30pF, TDM_ = 1, FSW_ = 1 50 ns

CL = 30pF

Master mode

TDM_ = 1, BCLK rising edge 50 TDM_ = 0 50 TDM_ = 1 -15 +15

TDM_ = 0

TDM_ = 1, FSW_ = 1 20 ns

= V

SPKRVDD

= 2.8V, TA = T

20 ns

MIN

to T

, unless otherwise

MAX

0.8 x

t

BCLKL

ns

t

CLKSYNC

t

HIZOUT

F

t

CLKTX

HI-Z MSB

MASTER MODE

t

SETUPtHOLD

MSBLSB

BCLK

(OUTPUT)

LRCLK

(OUTPUT)

SDOUT

(OUTPUT)

SDIN

(INPUT)

t

R

LSB

Figure 1. Non-TDM Audio Interface Timing Diagrams (TDM_ = 0)

22

BCLK

(INPUT)

LRCLK

(INPUT)

SDOUT

(OUTPUT)

SDIN

(INPUT)

t

SYNCSET

t

HIZOUT

LSB HI-Z

LSB

SLAVE MODE

t

BCLKH

t

CLKTX

t

BCLK

t

SETUPtHOLD

MSB

t

MSB

BCLKL

with FlexSound Technology

t

F

BCLK (OUTPUT)

t

CLKSYNC

LRCLK (OUTPUT)

t

SDOUT (OUTPUT)

SDIN (INPUT)

HIZOUT

LSB

CLKTX

HI-ZLSB

MASTER MODE SLAVE MODE

Figure 2. TDM Audio Interface Timing Diagram (TDM_ = 1, FSW_ = 0)

t

R

t

CLKSYNC

MSB

t

SETUP

t

HOLD

SDOUT (OUTPUT)

Stereo Audio CODEC

t

BCLK

t

BCLK (INPUT)

LRCLK (INPUT)

SDIN (INPUT)

t

SYNCSET

t

HIZOUT

LSB

t

CLKTX

HI-ZLSB

BCLKH

t

SYNCHOLD

MSB

t

SETUP

t

BCLKL

t

MAX9888

HOLD

BCLK (OUTPUT)

LRCLK (OUTPUT)

SDOUT (OUTPUT)

SDIN (INPUT)

t

F

t

ENDSY NC

t

HIZOUT

LSB MSB

t

SYNCTX

HI-ZLSB MSB

MASTER MODE

t

R

t

CLKSYNC

t

CLKTX

t

SETUP

t

HOLD

BCLK (INPUT)

LRCLK (INPUT)

SDOUT (OUTPUT)

SDIN (INPUT)

Figure 3. TDM Audio Interface Timing Diagram (TDM_ = 1, FSW_ = 1)

DIGITAL MICROPHONE TIMING CHARACTERSTICS

(V

= V

AVDD

noted. Typical values are at T

DIGMICCLK Frequency f

DIGMICDATA to DIGMICCLK Setup Time

DIGMICDATA to DIGMICCLK Hold Time

HPVDD

= V

DVDD

= V

= +25NC.) (Note 1)

A

DVDDS1

= V

DVDDS2

= 2.0V, V

SPKLVDD

= V

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

MICCLK

t

SU,MIC

t

HD,MIC

MICCLK = 00 MCLK/8 MICCLK = 01 MCLK/6

Either clock edge 20 ns

Either clock edge 0 ns

t

HIZOUT

SPKRVDD

t

HI-ZLSB

LSB

= 2.8V, TA = T

SYNCTX

SLAVE MODE

MIN

t

BCLKH

MSB

to T

t

BCLK

t

CLKTX

MSB

t

SETUP

, unless otherwise

MAX

t

BCLKL

t

HOLD

MHz

23

Stereo Audio CODEC with FlexSound Technology

1/f

MICCLK

t

HD,MICtSU,MIC

t

HD,MICtSU,MIC

LEFT RIGHT LEFT RIGHT

MAX9888

Figure 4. Digital Microphone Timing Diagram

I2C TIMING CHARACTERSTICS

(V

= V

AVDD

otherwise noted. Typical values are at T

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 and SCL Receiving Rise Time t

SDA and SCL Receiving Fall Time t

SDA Transmitting Fall Time t

Setup Time for STOP Condition t Bus Capacitance C Pulse Width of Suppressed Spike t

HPVDD

= V

DVDD

= V

DVDDS1

= V

= +25NC.) (Note 1)

A

= 1.65V to 2.0V, V

DVDDS2

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

SCL

t

BUF

t

HD,STA

LOW

HIGH

t

SU,STA

HD,DAT

SU,DAT

SU,STO

Guaranteed by SCL pulse-width low and high

RPU = 475I, CB = 100pF, 400pF

(Note 10)

R

(Note 10)

F

RPU = 475I, CB = 100pF, 400pF (Note 10)

F

Guaranteed by SDA transmitting fall time 400 pF

B

SP

SPKLVDD

= V

SPKRVDD

= 3.7V, TA = T

MIN

to T

MAX

0 400 kHz

1.3

0.6

1.3

0.6

0 900 ns

100 ns

20 +

0.1C

20 +

0.1C

20 +

0.05C

B

300 ns

250 ns

0.6

0 50 ns

, unless

Fs

Fs Fs

Fs

24

SDA

t

LOW

t

SU,DAT

Stereo Audio CODEC

with FlexSound Technology

MAX9888

t

HD,DAT

SU,STA

t

HD,STA

t

SP

t

SU,STO

BUF

t

HIGH

t

R

F

REPEATED START CONDITION

STOP

CONDITION

START

CONDITION

Figure 5. I

SCL

t

HD,STA

START CONDITION

2

C Interface Timing Diagram

Note 1: The IC is 100% production tested at TA = +25NC. Specifications over temperature limits are guaranteed by design. Note 2:

Analog supply current = I

+ I

DVDDS1

+ I

DVDDS2

.

AVDD

+ I

. Speaker supply current = I

HPVDD

SPKLVDD

+ I

SPKRVDD

. Digital supply current = I

DVDD

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

f = 20Hz to 20kHz.

Note 5: Gain measured relative to the 0dB setting. Note 6: The filter specification is accurate only for synchronous clocking modes, where NI is a multiple of 0x1000. Note 7: 0dBFS for DAC input. 1V

for INA/INB inputs.

P-P

Note 8: LRCLK may be any rate in the indicated range. Asynchronous or noninteger MCLK/LRCLK ratios may exhibit some full-

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

Note 9: In master-mode operation, the accuracy of the MCLK input proportionally determines the accuracy of the sample clock rate. Note 10: CB is in pF.

Power Consumption

(V

= V

AVDD

DAC Playback 48kHz Stereo HP

DAC à HP 24-bit, music filters

DAC Playback 48kHz Stereo HP

DAC à HP 24-bit, music filters, 0.1mW/channel, R

= 32I

HP

DAC Playback 48kHz Stereo HP

DAC à HP 24-bit, music filters, ALC enabled

HPVDD

= V

MODE

DVDD

= V

DVDDS1

= V

DVDDS2

I

AVDD

(mA)

= +1.8V, V

I

HPVDD

(mA)

SPKLVDD

= V

SPKRVDD

I

SPKLVDD

I

SPKRVDD

(mA)

+

= 3.7V)

I

DVDD

(mA)

I

DVDDS1

+ I

(mA)

DVDDS2

1.35 1.37 1.65 2.91 0.02 16.25

1.35 4.19 1.65 3.02 0.02 21.55

1.35 1.37 1.65 2.96 0.02 16.36

POWER

(mW)

25

Stereo Audio CODEC with FlexSound Technology

Power Consumption (continued)

(V

= V

AVDD

DAC Playback 48kHz Stereo HP

DAC à HP

MAX9888

24-bit, music filters, EQ enabled

DAC Playback 48kHz Stereo HP

DAC à HP 24-bit, music filters, digital mixing

DAC Playback 44.1kHz Stereo HP

DAC à HP 24-bit, music filters

DAC Playback 8kHz Stereo HP

DAC à HP 16-bit, voice filters

DAC Playback 8kHz Mono HP

DAC à HP 16-bit, voice filters

DAC Playback 48kHz Stereo SPK

DAC à SPK 24-bit, music filters

DAC Playback 48kHz Mono SPK

DAC à SPK 24-bit, music filters

Line Stereo Record 48kHz

INA à ADC 16-bit, music filters

Line Stereo Record 48kHz, Stereo HP

INA à ADC INA à HP 16-bit, music filters

Line Stereo Record 48kHz, Stereo SPK

INA à ADC INA à SPK 16-bit, music filters

Differential Line Record 48kHz

INA à ADCL INB à ADCR Differential input

Microphone Stereo Record 48kHz

MIC1/2 à ADC 16-bit, music filters

Microphone Stereo Record 8kHz

MIC1/2 à ADC 16-bit, voice filters

HPVDD

= V

MODE

DVDD

= V

DVDDS1

= V

= +1.8V, V

DVDDS2

I

AVDD

(mA)

1.35 1.36 1.65 3.27 0.02 16.90

1.34 1.36 1.65 2.91 0.02 16.27

1.35 1.37 1.69 2.85 0.02 16.29

1.35 1.37 1.65 1.46 0.01 13.65

1.00 0.71 1.01 1.36 0.01 9.27

1.83 0.02 8.22 2.92 0.02 39.09

1.25 0.02 4.31 2.82 0.02 23.32

9.91 0.02 0.39 1.62 0.11 22.48

10.64 2.65 0.66 1.63 0.11 29.51

10.97

10.49 0.02 0.39 1.63 0.16 23.58

10.88 0.03 0.69 1.62 0.17 25.43

10.77 0.02 0.64 1.03 0.06 23.78

SPKLVDD

I

HPVDD

(mA)

0.03 7.15 1.63 0.12 49.50

= V

SPKRVDD

I

SPKLVDD

I

SPKRVDD

(mA)

+

= 3.7V)

I

DVDD

(mA)

I

DVDDS1

+ I

(mA)

DVDDS2

POWER

(mW)

26

Stereo Audio CODEC

with FlexSound Technology

Power Consumption (continued)

(V

AVDD

= V

HPVDD

= V

DVDD

= V

DVDDS1

= V

DVDDS2

= +1.8V, V

SPKLVDD

= V

SPKRVDD

= 3.7V)

MAX9888

MODE

Microphone Mono Record 48kHz

MIC1/2 à ADC 16-bit, music filters

Microphone Mono Record 8kHz

MIC1/2 à ADC 16-bit, voice filters

Microphone Mono Record 8kHz

MIC1/2 à ADC 16-bit, voice filters, AGC

Microphone Mono Record 8kHz

MIC1/2 à ADC 16-bit, voice filters, AGC, noise gate

Full-Duplex 48kHz Stereo HP

MIC1/2 à ADC DAC à HP 24-bit, music filters

Full-Duplex 8kHz Mono RCV

MIC1 à ADC DAC à REC 16-bit, voice filters

Full-Duplex 8kHz Mono HP

MIC1 à ADC DAC à HP 16-bit, voice filters

Full-Duplex 8kHz Stereo HP

MIC1/2 à ADC DAC à HP 16-bit, voice filters

Line Playback Stereo HP

INA à HP Single-ended inputs

Line Playback Stereo SPK

INA à SPK Single-ended inputs

Line Playback Mono SPK

INA à SPK Single-ended inputs

Differential Line Playback Stereo HP

INA à HPL INB à HPR Differential input

(mA)

+

I

DVDD

(mA)

I

DVDDS1

+ I

(mA)

DVDDS2

POWER

(mW)

I

AVDD

(mA)

6.01 0.02 0.66 1.37 0.10 15.97

5.95 0.02 0.64 0.98 0.04 14.94

5.95 0.02 0.64 0.98 0.04 15.00

5.96 0.02 0.64 0.98 0.04 14.98

11.38 1.37 1.70 3.56 0.19 36.06

6.35 0.02 1.98 1.47 0.03 21.47

6.09 0.71 1.01 1.46 0.03 18.72

10.92 1.37 1.09 1.51 0.05 28.95

1.89 2.65 0.58 0.03 0.01 10.41

2.21 0.02 7.05 0.04 0.02 30.19

1.68 0.02 3.70 0.03 0.02 16.90

2.46 2.65 0.58 0.03 0.01 11.42

I

HPVDD

(mA)

SPKLVDD

I

SPKRVDD

27

Stereo Audio CODEC with FlexSound Technology

Typical Operating Characteristics

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV

1. T

MICPRE_

= 0dB, AV

PGAIN_

= +25NC, unless otherwise noted.)

A

MAX9888

HPVDD

= V

DVDD

= J, R

HP

= V

= +20dB, AV

PGAOUT_

= 0dB, AV

DVDDS1

= J, Z

REC

MICPGA_

= V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

HP_

= +1.8V, V

= 2.2FF, C

REF

= 0dB, AV

REC

= 0dB, AV

DACATTN

SPKLVDD

= V

MICBIAS

DACGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS =

SPK_

Microphone to ADC

SPKRVDD

= C

PREG

= 0dB, AV

= 3.7V. Speaker loads (Z

= C

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

HPVSS

= 0dB,

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (MIC TO ADC)

0

MCLK = 13MHz

-10 LRCLK = 8kHz

FREQ MODE

-20 V

= 1V

IN

-30

-40

-50

-60

THD+N RATIO (dB)

-70

-80

-90

-100

P-P

AV

= 0dB

MICPRE_

10 10,000

FREQUENCY (Hz)

1000100

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (MIC TO ADC)

0

MCLK = 12.288MHz

-10 LRCLK = 96kHz

NI MODE

-20 V

= 1V

IN

-30

-40

-50

-60

THD+N RATIO (dB)

-70

-80

-90

-100

P-P

AV

= 0dB

MICPRE_

10 100,000

FREQUENCY (Hz)

10,0001000100

MAX9888 toc01

THD+N RATIO (dB)

MAX9888 toc04

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (MIC TO ADC)

0

MCLK = 13MHz

-10

LRCLK = 44.1kHz PLL MODE

-20 V

= 1V

IN

P-P

AV

MICPRE_

= 0dB

10,0001000100

FREQUENCY (Hz)

-30

-40

-50

-60

-70

-80

-90

10 100,000

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (MIC TO ADC)

0

MCLK = 13MHz

-10 LRCLK = 8kHz

FREQ MODE

-20 V

= 0.1V

IN

AV

MICPRE_

P-P

= +20dB

FREQUENCY (Hz)

1000100

-30

-40

-50

-60

THD+N RATIO (dB)

-70

-80

-90

-100 10 10,000

MAX9888 toc02

THD+N RATIO (dB)

MAX9888 toc05

THD+N RATIO (dB)

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (MIC TO ADC)

0

MCLK = 12.288MHz

-10 LRCLK = 48kHz

NI MODE

-20 V

= 1V

IN

-30

-40

-50

-60

-70

-80

-90

-100

P-P

AV

= 0dB

MICPRE_

10 100,000

FREQUENCY (Hz)

10,0001000100

TOTAL HARMONIC DISTORTION PLUS NOISE vs. FREQUENCY (MIC TO ADC)

0

MCLK = 13MHz

-10 LRCLK = 8kHz

FREQ MODE

-20 V

= 0.032V

IN

MICPRE_

P-P

= +30dB

FREQUENCY (Hz)

1000100

-30 AV

-40

-50

-60

-70

-80

-90

-100 10 10,000

MAX9888 toc03

MAX9888 toc06

28

Stereo Audio CODEC

with FlexSound Technology

Typical Operating Characteristics (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV

1. T

MICPRE_

= 0dB, AV

PGAIN_

= +25NC, unless otherwise noted.)

A

HPVDD

= V

DVDD

= J, R

HP

= V

= +20dB, AV

PGAOUT_

= 0dB, AV

DVDDS1

= J, Z

REC

MICPGA_

= V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

HP_

= +1.8V, V

= 2.2FF, C

REF

= 0dB, AV

REC

= 0dB, AV

DACATTN

SPKLVDD

MICBIAS

SPK_

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

HPVSS

= 0dB,

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS =

MAX9888

GAIN vs. FREQUENCY (MIC TO ADC)

5

-5

-15

-25

-35

-45 MCLK = 13MHz

-55 LRCLK = 8kHz

NORMALIZED GAIN (dB)

FREQ MODE

-65 VIN = 1V

-75

-85

P-P

AV

= 0dB

MICPRE_

10 10,000

MODE = 1

MODE = 0

1000100

FREQUENCY (Hz)

FFT, 0dBFS (MIC TO ADC)

0

-20

-40

-60

-80

AMPLITUDE (dBV)

-100

MCLK = 13MHz LRCLK = 8kHz FREQ MODE AV

MICPRE_

= 0dB

MAX9888 toc07

MAX9888 toc10

COMMON-MODE REJECTION

RATIO vs. FREQUENCY (MIC TO ADC)

90

80

AV

70

60

50

40

CMRR (dB)

30

20

10

V

OUT, DIFF

0

10 100,000

= +30dB

MICPRE_

AV

MICPRE_

AV

MICPRE_

= 0dBFS

FREQUENCY (Hz)

= +20dB

= 0dB

10,0001000100

FFT, -60dBFS (MIC TO ADC)

0

-20

-40

-60

-80

AMPLITUDE (dBV)

-100

MCLK = 13MHz LRCLK = 8kHz FREQ MODE AV

MICPRE_

= 0dB

MAX9888 toc08

PSRR (dB)

MAX9888 toc11

AMPLITUDE (dBV)

POWER-SUPPLY REJECTION

RATIO vs. FREQUENCY (MIC TO ADC)

0

V

= 200mV

RIPPLE

INPUTS AC GROUNDED

-20

-40

-60

-80

-100

-120 10 100,000

P-P

RIPPLE ON AVDD,

DVDD, HPVDD

RIPPLE ON

SPKLVDD, SPKRVDD

10,0001000100

FREQUENCY (Hz)

FFT, 0dBFS (MIC TO ADC)

0

-20

-40

-60

-80

-100

MCLK = 13MHz LRCLK = 44.1kHz PLL MODE AV

MICPRE_

MAX9888 toc09

MAX9888 toc12

= 0dB

-120

-140 0 4000

FREQUENCY (Hz)

-120

-140

350030002500200015001000500

0 4000

FREQUENCY (Hz)

350030002500200015001000500

-120

-140 0 20,000

FREQUENCY (Hz)

15,00010,0005000

29

Stereo Audio CODEC with FlexSound Technology

Typical Operating Characteristics (continued)

(V

= V

AVDD

between SPK_P and SPK_N. Receiver load (R HPL or HPR to GND. R = 1FF. AV AV

1. T

MICPRE_

= 0dB, AV

PGAIN_

= +25NC, unless otherwise noted.)

A

HPVDD

= V

DVDD

= J, R

HP

= V

= +20dB, AV

PGAOUT_

= 0dB, AV

DVDDS1

= J, Z

REC

MICPGA_

= V

DVDDS2

) connected between RECP and RECN. Headphone loads (RHP) connected from

REC

= J, C

SPK

= 0dB, AV

HP_

= +1.8V, V

= 2.2FF, C

REF

= 0dB, AV

REC

= 0dB, AV

DACATTN

SPKLVDD

MICBIAS

SPK_

= V

SPKRVDD

= C

DACGAIN

= 3.7V. Speaker loads (Z

= C

PREG

= 0dB, AV

REG

ADCLVL

= 1FF, C

= 0dB, AV

C1N-C1P

) connected

SPK

= 1FF, C

ADCGAIN

= 0dB, MCLK = 12.288MHz, LRCLK = 48kHz, MAS =

MAX9888

HPVSS

= 0dB,

FFT, -60dBFS (MIC TO ADC)

0

-20

-40

-60

-80

AMPLITUDE (dBV)

-100

-120

-140 0 20,000

FREQUENCY (Hz)

MCLK = 13MHz LRCLK = 44.1kHz PLL MODE AV

MICPRE_

FFT, -60dBFS (MIC TO ADC)

0

-20

-40

-60

-80

AMPLITUDE (dBV)

-100

MCLK = 12.288MHz LRCLK = 48kHz NI MODE AV

MICPRE_

0

MAX9888 toc13

= 0dB

15,00010,0005000

-20

-40

-60

-80

AMPLITUDE (dBV)

-100

-120

-140 0 20,000

FREQUENCY (Hz)

MCLK = 12.288MHz LRCLK = 48kHz NI MODE AV

= 0dB

MICPRE_

15,00010,0005000

MAX9888 toc14

FFT, 0dBFS (MIC TO ADC)

= 0dB

MAX9888 toc15

0

-20

-40

-60

-80

AMPLITUDE (dBV)

-100

MCLK = 12.288MHz LRCLK = 96kHz NI MODE AV

= 0dB

MICPRE_

MAX9888 toc16

30

-120

-140 0 20,000

FREQUENCY (Hz)

15,00010,0005000

-120

-140 0 20,000

FREQUENCY (Hz)

15,00010,0005000