MAXIM MAX97003 Technical data

19-6044; Rev 0; 9/11

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

General Description

The MAX97003 audio subsystem combines a mono speaker amplifier with a stereo headphone amplifier. The headphone and speaker amplifiers have independent volume and on/off controls. The four inputs are configurable as two differential or four single-ended inputs.

To minimize output noise, both the headphone and speaker outputs utilize a downward expander/noise gate to attenuate noise when no desired input signal is present.

The speaker output incorporates an adjustable dynamic range compressor (DRC) and distortion limiter to protect the speaker and maximize loudness. This allows high gain for low-level signals without compromising the quality of large signals.

All controls are performed using the two-wire I2C interface. The IC operates in the extended -40NC to +85NC temperature range, and is available in the 2.0mm x

2.4mm, 20-bump WLP package (0.4mm pitch).

Applications

Cell Phones

Portable Media Players

Ordering Information appears at end of data sheet.

Features

S 2.7V to 5.5V Speaker Supply Voltage

S 1.8V Headphone Supply Voltage

S 1.0W Speaker Output (V

68µH, 1% THD+N)

S 32mW/Channel Headphone Output (RHP = 32I)

S Active Emissions Limiting for Enhanced EMI

Reduction

S Efficient Class H Headphone Amplifier

S Ground-Referenced Headphone Outputs

S Headphone Ground Sense

S 2 Stereo Single-Ended/Mono Differential Inputs

S Integrated Expander/Noise Gate for Low Output

Noise

S Integrated DRC (Speaker Outputs)

S Integrated Distortion Limiter (Speaker Outputs)

S Extensive Click-and-Pop Reduction Circuitry

S TDMA Noise Free

S 2.0mm x 2.4mm, 20-Bump WLP Package (0.4mm

Pitch)

PVDD

= 4.2V, Z

SPK

= 8I +

Simplified Block Diagram

1.8V BATTERY

POWER SUPPLY

STEREO/

MONO INPUT

STEREO/

MONO INPUT

For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX97003.related.

�� Maxim Integrated Products 1

DRC AND

EXPANDER

MAX97003

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.

I2C

CONTROL

VOLUME

CLASS D

AMPLIFIER

LIMITER

CLASS H

AMPLIFIER

CHARGE

PUMP

HEADPHONE

GROUND

SENSE

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

LIST OF FIGURES

Figure 1. Signal Path .......................................................................... 22

Figure 2. Stereo Single-Ended and Differential Input Configurations ..................................... 23

Figure 3. EMI with 12in of Speaker Cable ..........................................................23

Figure 4. Low-Signal to High-Signal Transition, No Clipping, DRC Disabled ............................... 24

Figure 5. Low-Signal to High-Signal Transition, Increased Gain, DRC Disabled............................. 24

Figure 6. Low-Signal to High-Signal Transition, Increased Gain, DRC Enabled ............................. 24

Figure 7. DRC Gain Curve ...................................................................... 24

Figure 8. Expander Gain Curve .................................................................. 25

Figure 9. High-Signal to Low-Signal Transition, Expander Disabled ...................................... 25

Figure 10. High-Signal to Low-Signal Transition, Expander Enabled...................................... 25

Figure 11. High-Signal to Low-Signal Transition, Speaker Expander with Speaker Low-Power Mode ............ 26

Figure 12. Limiter Gain Curve....................................................................26

Figure 13. Traditional Amplifier Output vs. MAX97003 DirectDrive Output ................................. 27

Figure 14. Class H Operation.................................................................... 28

Figure 15. I2C Serial Interface Timing Diagram ...................................................... 40

Figure 16. START, STOP, and REPEATED START Conditions ........................................... 41

Figure 17. Acknowledge ........................................................................ 41

Figure 18. Writing 1 Byte of Data to the IC .........................................................42

Figure 19. Writing n-Bytes of Data to the IC ........................................................ 42

Figure 20. Reading One Byte of Data from the IC.................................................... 43

Figure 21. Reading n-Bytes of Data from the IC .....................................................43

Figure 22. Optional Class D Ferrite Bead Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Figure 23. WLP Ball Dimensions .................................................................46

�� Maxim Integrated Products 4

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

LIST OF TABLES

Table 1. Register Map ......................................................................... 29

Table 2. Volume Readback Registers ............................................................. 30

Table 3. Input Configuration Registers............................................................. 31

Table 4. Mixer Registers........................................................................ 32

Table 5. Headphone Volume Control Registers ...................................................... 33

Table 6. Dynamic Range Control Registers .........................................................34

Table 7. Expander Registers .................................................................... 35

Table 8. Distortion Limiter Register ............................................................... 36

Table 9. Speaker Low-Power Mode Register........................................................37

Table 10. Output Gain Register .................................................................. 38

Table 11. Advanced Configuration Control Register ..................................................39

Table 12. Power Management Register ............................................................ 40

Table 13. Startup Sequence..................................................................... 44

�� Maxim Integrated Products 5

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

Functional Diagram/Typical Application Circuit

1.6V TO 2.0V 2.7V TO 5.5V

1µF

INA1

INA2

INB1 C4

INB2 C5

10µF

PGAINA

+

-3dB TO +12dB

PGAINA

-3dB TO +12dB

PGAINB

-3dB TO +12dB

PGAINB

-3dB TO +12dB

V

DD

D4

D5

0.1µF 1µF 10µF

INADIFF

INBDIFF

V

DD

C3

-63dB TO 0dB

MIX

HPLMIX

EXPANDER

MIX

HPRMIX

MIX

SPKMIX

DRC AND

EXPANDER

-63dB TO 0dB

SPKVOL:

-63dB TO 0dB

HPLVOL:

HPRVOL:

PVDD

C1

BIAS

HPVDD

0dB TO 6dB

HPLEN

HPVSS

HPVDD

0dB TO 6dB

HPREN

HPVSS

PVDD

+12dB TO 24dB

SPKEN

PGND

THD LIMITER

THDCLP

B5

BIAS

1µF

HPLA5

HPSNSB4

HPRA4

D1

SPKP

SPKN

D2

SDA C2

SCL B2

CONTROL

B1

GND

MAX97003

D3

PGND

A2

C1P

V

DD

CHARGE PUMP

A1

C1NB3CPVDD CPVSS

1µF

A3

1µF1µF

�� Maxim Integrated Products 6

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

ABSOLUTE MAXIMUM RATINGS

(Voltages with respect to GND.)

VDD, CPVDD ........................................................-0.3V to +2.2V

BIAS .......................................................... -0.3V to (VDD + 0.3V)

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

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

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

C1N ................................... (V

C1P ..................................................... -0.3V to (V

HPL, HPR .......................... (V

CPVSS

- 0.3V) to (V

CPVDD CPVDD CPVDD

+ 0.3V) + 0.3V)

+ 0.3V)

INA1, INA2, INB1, INB2 .......................................-0.3V to +6.0V

SDA, SCL .............................................................-0.3V to +6.0V

SPKP, SPKN ..........................................-0.3V to (V

PVDD

+ 0.3V)

HPSNS .................................................................. -0.3V to +0.3V

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.

ELECTRICAL CHARACTERISTICS

(VDD = 1.8V, V configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z noted. Typical values are at TA = +25NC.) (Note 1)

= 4.2V, V

PVDD

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= V

GND

SPK

PGND

= J, RHP = J. C

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

C1P-C1N

= C

Continuous Current In/Out of PVDD, PGND, SPK_ ....... Q800mA

Continuous Current In/Out of HPR, HPL, VDD .............. Q140mA

Continuous Input Current (all other pins) ........................ Q20mA

Duration of SPK_ Short Circuit to GND or PVDD ......Continuous

Duration of Short Circuit Between SPKP and SPKN ... Continuous

Duration of HP_ Short Circuit to GND or VDD ...........Continuous

Continuous Power Dissipation (TA = +70NC)

WLP Multilayer Board

(derate 21.7mW/NC above +70NC) ................................1.74W

Junction Temperature .....................................................+150NC

Operating Temperature Range .......................... -40NC to +85NC

Storage Temperature Range ............................ -65NC to +150NC

Soldering Temperature (reflow) ......................................+260NC

CPVDD

= C

CPVSS

= C

= 1FF. TA = T

BIAS

MIN

to T

, unless otherwise

MAX

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Speaker Amplifier Supply Voltage Range

Headphone Amplifier Supply Voltage Range

Quiescent Current I

PVDD Guaranteed by PSRR test 2.7 5.5 V

V

DD

Guaranteed by PSRR test 1.6 2 V

HP mode, TA = +25NC, stereo SE input on INA routed to HP output, HP expander disabled

HP mode, TA = +25NC, stereo SE input on INA routed to HP output, HP expander enabled

SPK mode, TA = +25NC mono differential input on INA routed to SPK output; SPK expander, DRC, and limiter all disabled

SPK mode, TA = +25NC mono differential input on INA routed to SPK output; SPK expander, DRC, and limiter all enabled

SPK + HP mode, TA = +25NC stereo SE input on INA routed

I

VDD

I

PVDD

I

VDD

I

PVDD

I

VDD

I

PVDD

I

VDD

I

PVDD

I

VDD

1.21 1.6

1.07 1.3

2.46 2.95

1.34 1.6

0.1 0.15

2.25 2.6

1.35 1.65

2.6 2.95

1.21 1.6

mA

to HP and SPK output; SPK and HP expanders, DRC, and limiter all disabled

I

PVDD

2.74 3.2

�� Maxim Integrated Products 7

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 1.8V, V configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z noted. Typical values are at TA = +25NC.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Shutdown Current

Turn On-Time t

PREAMPLIFIERS

Input Resistance R

Gain

Maximum Input Signal Swing Preamp = 0dB 2.4 V

Common-Mode Rejection Ratio CMRR f = 1kHz (differential input mode), 0dB 63 dB

Input DC Voltage IN__ inputs 1.2 1.23 1.275 V

Bias Voltage V

SPEAKER AMPLIFIER

Output Offset Voltage VOS

= 4.2V, V

PVDD

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= V

GND

SPK

PGND

= J, RHP = J. C

I

SHDN

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

ON

IN

BIAS

C1P-C1N

I

VDD

I

PVDD

Time from power-on to full operation

TA = +25NC

PGAIN_ = 0x0 -3.2 -2.98 -2.79

PGAIN_ = 0x1 -1.49

PGAIN_ = 0x2 -0.22 -0.02 +0.21

PGAIN_ = 0x3 1.57

PGAIN_ = 0x4 3.04

PGAIN_ = 0x5 4.52

PGAIN_ = 0x6 6.06

PGAIN_ = 0x7 7.51

PGAIN_ = 0x8 9.01

PGAIN_ = 0x9 10.59

PGAIN_ = 0xA 11.82 12 12.36

1.2 1.23 1.275 V

TA = +25NC (volume at mute, SPKGAIN = 00)

TA = +25NC (volume at 0dB, SPKGAIN = 00)

= C

, TA = +25NC

CPVDD

= C

CPVSS

SLEW = 0 SLEW = 1

-3dB to +9dB 15 20.4 28.5

+10.5dB to +12dB 5.2 6.96 9.5

= 1FF. TA = T

BIAS

to T

MIN

0.08 2.5

0.05 1

17

10

MAX

Q0.5 Q2.5

Q1.0

, unless otherwise

FA

ms

kI

dB

P-P

mV

Click-and-Pop Level K

�� Maxim Integrated Products 8

CP

Peak voltage, TA = +25NC, A-weighted, 32 samples per second, volume at 0dB, SPKGAIN = 00 (Note 2)

Into shutdown -72

dBV

Out of shutdown -65

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 1.8V, V configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z noted. Typical values are at TA = +25NC.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Power-Supply Rejection Ratio (Note 2)

Output Power (Note 3) P

Total Harmonic Distortion Plus Noise

Output Noise A-weighted

Signal-to-Noise Ratio SNR

Output Frequency f

Spread-Spectrum Bandwidth

Gain

Current Limit 2 A

Efficiency h

Volume Control

Volume Control Step Size 1 dB

Mute Attenuation f = 1kHz 118 dB

= 4.2V, V

PVDD

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= V

GND

SPK

PGND

= J, RHP = J. C

PSRR

THD+N

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

OUT

C1P-C1N

= C

TA = +25NC

THD+N = 1%

f = 1kHz, P Z

SPK

f = 1kHz, P Z

SPK

OUT

= 8I + 68FH

OUT

= 8I + 68FH

CPVDD

= C

CPVSS

V

PVDD

= C

= 2.7V to

5.5V

f = 217Hz, V

RIPPLE

= 200mV

f = 1kHz, V

RIPPLE

= 200mV

f = 10kHz, V

Z V

= 200mV

RIPPLE

= 8I + 68FH,

SPK

= 4.2V

PVDD

= 8I + 68FH,

SPK

= 3.6V

PVDD

= 4I + 33FH,

SPK

= 5.0V

PVDD

= 700mW, TA = +25NC,

= 350mW, TA = +25NC,

= 1FF. TA = T

BIAS

P-P

MIN

to T

, unless otherwise

MAX

65 90.4

80

78

72

1007

735

2585

0.06

0.029 0.048

Noise gate disabled 40

Noise gate enabled 25

Noise gate disabled 93

Noise gate enabled 98

Q10

kHz

OSC

A-weighted, P

= 700mW

OUT

Spread spectrum 298.9 kHz

SPKGAIN = 00 11.69

SPKGAIN = 01 15.4 15.65 15.92

SPKGAIN = 10 19.64

SPKGAIN = 11 23.7

P

= 1W, f = 1kHz, Z

OUT

= 8I + 68FH

SPK

92 %

SPKVOL = 0x00 -63.35 -62.87 -62.36

SPKVOL = 0x3F -0.044 0 0.13

FV

dB

mW

%

RMS

dB

�� Maxim Integrated Products 9

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 1.8V, V configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z noted. Typical values are at TA = +25NC.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

CHARGE PUMP

Charge-Pump Frequency

Positive Output Voltage V

Negative Output Voltage V

Output Voltage Threshold V

Mode Transition Timeouts

HEADPHONE AMPLIFIERS

Output Offset Voltage VOS

= 4.2V, V

PVDD

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= V

GND

SPK

PGND

= J, RHP = J. C

CPVDD

CPVSS

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

HPL

OUT

= V

> V

< V

> V

< V

= C

HPR

TH

C1P-C1N

V

TH

Output voltage at which the charge pump switches modes, V

Time it takes for the charge pump to transition from invert to split mode

Time it takes for the charge pump to transition from split to invert mode

CPVDD

= C

CPVSS

= C

= 1FF. TA = T

BIAS

MIN

to T

, unless otherwise

MAX

= 0V 80 83.3 86

= 0.2V 665

= 0.5V 500

V

DD

VDD/2

-V

DD

-VDD/2

rising or falling

OUT

QV

DD

x 0.216

QV

x 0.25

DD

QV

x 0.278

30 ms

20

DD

TA = +25NC Q0.15 Q0.5

kHz

V

Fs

mV

Click-and-Pop Level K

Power-Supply Rejection Ratio (Note 2)

PSRR

�� Maxim Integrated Products 10

CP

Peak voltage, TA = +25NC, A-weighted, 32 samples per second, volume at 0dB (Note 2)

TA = +25NC

Into shutdown -73

Out of shutdown -73

VDD = 1.6V to 2.0V 65 99.9

f = 217Hz, V

RIPPLE

= 200mV

f = 1kHz, V

RIPPLE

= 200mV

f = 20kHz, V

RIPPLE

= 200mV

P-P

93

88

65

dBV

dB

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 1.8V, V configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z noted. Typical values are at TA = +25NC.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

= 4.2V, V

PVDD

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= V

GND

SPK

PGND

= J, RHP = J. C

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

C1P-C1N

= C

CPVDD

= C

CPVSS

= C

= 1FF. TA = T

BIAS

MIN

to T

, unless otherwise

MAX

THD+N = 1%, PGAINA = -1.5dB,

Output Power P

Channel-to-Channel Gain Tracking

Total Harmonic Distortion Plus Noise

Output Noise A-weighted

Signal-to-Noise Ratio SNR

Capacitive Drive C

Crosstalk

Gain

Volume Control

Volume Control Step Size 1 dB

Mute Attenuation f = 1kHz 100 dB

SPEAKER DRC

Release Time

Attack Time

Compression Ratio

OUT

THD+N

HPGAIN = +2dB

THD+N = 0.1%, PGAINA = -1.5dB, HPGAIN = +2dB

HPL to HPR, volume at 0dB, HPLMIX = 0x1, HPRMIX = 0x2, IN_DIFF = 0

RHP = 32I, P

RHP = 16I, P

A-weighted, P

= 10mW

OUT

1000 pF

L

HPL to HPR, HPR to HPL, RHP = 32I, P

= 10mW

OUT

HPGAIN = 00 -0.53 -0.25 +0.09

HPGAIN = 01 1.72

HPGAIN = 10 3.72

HPGAIN = 11 5.85

HP_VOL = 0x00 -63.74 -63.3 -62.9

HP_VOL = 0x3F -0.50 -0.27 +0.09

DRCRLS = 000 800

DRCRLS = 101 25

DRCATK = 000 0.5

DRCATK = 111 50

DRCEN = 001 1.34:1

DRCEN = 101

OUT

RHP = 16I

RHP = 32I

= 10mW, f = 1kHz

Noise gate disabled 10

Noise gate enabled 5.9

Noise gate disabled 94.2

Noise gate enabled 96.4

f = 20Hz to 10kHz -78

f = 1kHz -83

42

32

27

0.25 1.5 %

0.005

0.006

J:1

mW

FV

dB

ms/

step

ms

ratio

%

RMS

�� Maxim Integrated Products 11

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

ELECTRICAL CHARACTERISTICS (continued)

(VDD = 1.8V, V configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z noted. Typical values are at TA = +25NC.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Compression Threshold

SPEAKER AND HEADPHONE EXPANDER

Attack Time

Release Time Low-signal to high-signal transition 0.2

Expander Threshold

SPEAKER DISTORTION LIMITER

Distortion Threshold

Attack Time 0.5 ms

Release Time

= 4.2V, V

PVDD

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= V

GND

SPK

PGND

= J, RHP = J. C

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

C1P-C1N

= C

CPVDD

= C

CPVSS

= C

= 1FF. TA = T

BIAS

MIN

to T

, unless otherwise

MAX

DRCTH = 0x01 0.839

DRCTH = 0x1F 0.199

EXP_ATK = 000 500

High signal to low signal transition

EXP_ATK = 101 25

EXP_ATK = 110 15

EXP_TH = 0x1 32

EXP_TH = 0xF 1

THDCLP = 0x1 < 1

THDCLP = 0xF 24

THDRLS = 000 0.076

THDRLS = 111 6.2

V

RMS

ms/

step

ms/

step

mV

P

%

s

DIGITAL I/O CHARACTERISTICS

(VDD = 1.8V, V (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DIGITAL INPUTS (SDA and SCL)

Input Voltage High V

Input Voltage Low V

Input Hysteresis V

Input Capacitance C

Input Leakage Current I

DIGITAL OUTPUTS (SDA Open Drain)

Output Low Voltage SDA VOL I

= 4.2V, V

PVDD

�� Maxim Integrated Products 12

GND

= V

= 0V. TA = T

PGND

iH

IL

HYS

IN

to T

MIN

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

MAX

0.7 x V

DD

0.4 x V

DD

V

200 mV

10 pF

TA = +25NC Q1.0 FA

VDD = 0V, TA = +25NC Q1.0 FA

= 3mA 0.4 V

SINK

High-Efficiency, Low-Noise Audio Subsystem

I2C TIMING CHARACTERISTICS

(VDD = 1.8V, V (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

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

PVDD

= 4.2V, V

GND

= V

PGND

SCL

t

BUF

t

HD,STA

LOW

HIGH

t

SU,STA

= 0V. TA = T

MAX97003

to T

MIN

0 400 kHz

1.3

0.6

1.3

0.6

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

MAX

Fs

Data Hold Time t

Data Setup Time t

SDA and SCL Receiving Rise Time

SDA and SCL Receiving Fall Time

SDA Transmitting Fall Time t

Setup Time for STOP Condition t

Bus Capacitance C

Pulse Width of Suppressed Spike t

Note 1: 100% production tested at TA = +25NC. Specifications over temperature limits are guaranteed by design. Note 2: Amplifier inputs are AC-coupled to GND. Note 3: Class D amplifier testing performed with a resistive load in series with an inductor to simulate an actual speaker load. Note 4: CB is in pF.

HD,DAT

SU,DAT

t

SU,STO

SP

0 900 ns

100 ns

(Note 4)

R

(Note 4)

F

(Note 4)

F

0.6

400 pF

B

0 50 ns

20 +

0.1C

20 +

0.1C

20 +

0.1C

ns

B

300 ns

B

250 ns

B

Fs

�� Maxim Integrated Products 13

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

Typical Operating Characteristics

(VDD = 1.8V, V

PVDD

= 4.2V, V

GND

= V

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

PGND

configured singled-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= J, RHP = J. C

SPK

C1P-C1N

= C

CPVDD

= C

CPVSS

= C

BIAS

= 1FF.)

GENERAL

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

3.0 I

SPK MODE

PVDD

EXPANDER, DRC,

2.5

AND LIMITER DISABLED

2.0

1.5

1.0

SUPPLY CURRENT (mA)

0.5

0

2.5 5.5 SUPPLY VOLTAGE (V)

0.10

0.09

MAX97003 toc01

5.04.54.03.53.0

0.08

0.07

0.06

0.05

0.04

0.03

SHUTDOWN CURRENT (µA)

0.02

0.01

0

2.5 5.5

SHUTDOWN CURRENT vs. SUPPLY VOLTAGE

I

PVDD

SUPPLY VOLTAGE (V)

MAX97003 toc02

5.04.54.03.53.0

SPEAKER AMPLIFIER

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

100

V

= 4.2V

PVDD

Z

= 8I + 68µH

SPK

10

1

P

= 800mW

0.1

THD+N RATIO (%)

0.01

0.001

OUT

P

= 200mW

OUT

10 100k

FREQUENCY (Hz)

�� Maxim Integrated Products 14

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

100

V

= 4.2V

PVDD

Z

= 4I + 33µH

MAX97003 toc03

10k1k100

SPK

10

1

P

= 1.5W

OUT

0.1

THD+N RATIO (%)

0.01

P

= 500mW

OUT

0.001 10 100k

FREQUENCY (Hz)

MAX97003 toc04

THD+N RATIO (%)

0.001

10k1k100

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. FREQUENCY

100

V

= 4.2V

PVDD

Z

= 8I + 68µH

SPK

= 600mW

P

OUT

10

1

0.1

0.01

10 100k

SSM

FFM

10k1k100

FREQUENCY (Hz)

MAX97003 toc05

MAX97003

High-Efficiency, Low-Noise Audio Subsystem

Typical Operating Characteristics (continued)

(VDD = 1.8V, V

PVDD

= 4.2V, V

GND

= V

= 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal

PGND

configured singled-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential. Speaker loads (Z SCL pullup voltage = 1.8V. Z

) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and

SPK

= J, RHP = J. C

SPK

C1P-C1N

= C

CPVDD

= C

CPVSS

= C

BIAS

= 1FF.)

SPEAKER AMPLIFIER

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

V

= 5V

PVDD

Z

= 8I + 68µH

SPK

10

1

0.1

THD+N RATIO (%)

0.01

0.001

f = 6kHz

f = 1kHz

f = 100kHz

0 2.5

OUTPUT POWER (W)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

V

= 4.2V

PVDD

Z

= 4I + 33µH

SPK

10

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

V

= 5V

PVDD

Z

= 4I + 33µH

MAX97003 toc06

2.01.51.00.5

SPK

10

1

0.1

THD+N RATIO (%)

0.01

0.001

f = 6kHz

f = 1kHz

f = 100kHz

0 4.0

OUTPUT POWER (W)

MAX97003 toc07

THD+N RATIO (%)

0.001

3.53.02.52.01.51.00.5

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

V

= 3.6V

PVDD

Z

= 8I + 68µH

MAX97003 toc09

SPK

10

MAX97003 toc10

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

V

= 4.2V

PVDD

Z

= 8I + 68µH

SPK

10

1

0.1

0.01

f = 6kHz

f = 1kHz

f = 100kHz

0 1.6

OUTPUT POWER (W)

TOTAL HARMONIC DISTORTION

PLUS NOISE vs. OUTPUT POWER

100

V

= 3.6V

PVDD

Z

= 4I + 33µH

SPK

10

1.41.21.00.80.60.40.2

MAX97003 toc08

MAX97003 toc11

1

0.1

THD+N RATIO (%)

0.01

0.001

f = 6kHz

f = 1kHz

f = 100kHz

0 3.0

OUTPUT POWER (W)

�� Maxim Integrated Products 15

1

0.1

THD+N RATIO (%)

0.01

2.52.01.51.00.5

0.001

f = 6kHz

f = 1kHz

f = 100kHz

0 1.2

OUTPUT POWER (W)

1.00.80.60.40.2

1

0.1

THD+N RATIO (%)

0.01

0.001

f = 6kHz

f = 1kHz

f = 100kHz

0 2.0

OUTPUT POWER (W)

1.51.00.5

MAXIM MAX97003 Technical data

Specifications and Main Features

Frequently Asked Questions

User Manual

General Description

Applications

Features

Simplified Block Diagram

TABLE OF CONTENTS

LIST OF FIGURES

LIST OF TABLES

Functional Diagram/Typical Application Circuit

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

DIGITAL I/O CHARACTERISTICS

I2C TIMING CHARACTERISTICS

Typical Operating Characteristics