19-6044; Rev 0; 9/11
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
General Description
Features
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.
S 2.7V to 5.5V Speaker Supply Voltage
S 1.8V Headphone Supply Voltage
S 1.0W Speaker Output (VPVDD = 4.2V, ZSPK = 8I +
68µH, 1% THD+N)
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.
S 32mW/Channel Headphone Output (RHP = 32I)
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.
S Efficient Class H Headphone Amplifier
All controls are performed using the two-wire I2C inter-
S Integrated Expander/Noise Gate for Low Output
Noise
S Active Emissions Limiting for Enhanced EMI
Reduction
S Ground-Referenced Headphone Outputs
S Headphone Ground Sense
S 2 Stereo Single-Ended/Mono Differential Inputs
face. 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).
S Integrated DRC (Speaker Outputs)
S Integrated Distortion Limiter (Speaker Outputs)
Applications
S Extensive Click-and-Pop Reduction Circuitry
S TDMA Noise Free
Cell Phones
S 2.0mm x 2.4mm, 20-Bump WLP Package (0.4mm
Pitch)
Portable Media Players
Ordering Information appears at end of data sheet.
Simplified Block Diagram
1.8V
I2C
BATTERY
POWER SUPPLY
STEREO/
MONO
INPUT
CONTROL
DRC AND
EXPANDER
VOLUME
CLASS D
AMPLIFIER
LIMITER
EXPANDER
STEREO/
MONO
INPUT
VOLUME
CLASS H
AMPLIFIER
CHARGE
PUMP
MAX97003
HEADPHONE
GROUND
SENSE
For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX97003.related.
����������������������������������������������������������������� 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.
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
TABLE OF CONTENTS
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Simplified Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Functional Diagram/Typical Application Circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Digital I/O Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
I2C Timing Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Typical Operating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Bump Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Bump Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Signal Path . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Class D Speaker Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Ultra-Low EMI Filterless Output Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Dynamic Range Compressor (DRC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Expander . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Speaker Low-Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Distortion Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Headphone Amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
DirectDrive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Charge Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Class H Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Ground Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Volume-Change Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Zero-Crossing Detection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Volume Slewing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Enhanced Volume Smoothing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Volume Readback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
I2C Slave Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Registers Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Volume Readback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Mixers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Volume Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
����������������������������������������������������������������� Maxim Integrated Products 2
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
TABLE OF CONTENTS (continued)
Dynamic Range Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Expander (Noise Gate) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Distortion Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Speaker Low-Power Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Output Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Advanced Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
I2C Serial Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Bit Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
START and STOP Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Early STOP Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Slave Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Acknowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Write Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Read Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Filterless Class D Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
RF Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Startup/Shutdown Sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Component Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Optional Ferrite Bead Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Input Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Charge-Pump Capacitor Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Charge-Pump Flying Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Charge-Pump Holding Capacitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Supply Bypassing, Layout, and Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
WLP Applications Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
����������������������������������������������������������������� Maxim Integrated Products 3
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
10µF
2.7V TO 5.5V
0.1µF
1µF
VDD
PVDD
C3
1µF
C1
PGAINA
-3dB TO +12dB
INA1 D4
BIAS
HPLVOL:
-63dB TO 0dB
INADIFF
1µF
INA2 D5
A5 HPL
0dB TO 6dB
HPLEN
HPLMIX
PGAINA
-3dB TO +12dB
HPVSS
EXPANDER
+
B4 HPSNS
HPVDD
MIX
A4 HPR
0dB TO 6dB
1µF
PGAINB
-3dB TO +12dB
INB1 C4
HPRVOL:
-63dB TO 0dB
HPRMIX
INBDIFF
PGAINB
-3dB TO +12dB
INB2 C5
HPREN
HPVSS
PVDD
SPKVOL:
-63dB TO 0dB
D1 SPKP
+12dB TO 24dB
MIX
1µF
D2 SPKN
SPKEN
SPKMIX
PGND
DRC AND
EXPANDER
+
THD LIMITER
THDCLP
VDD
VDD
SDA C2
SCL B2
B5 BIAS
HPVDD
MIX
1µF
10µF
MAX97003
CONTROL
CHARGE PUMP
B1
GND
D3
PGND
A2
A1
B3
A3
C1P
C1N
CPVDD
CPVSS
1µF
1µF
1µF
����������������������������������������������������������������� 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.................................... (VCPVSS - 0.3V) to (VCPVDD + 0.3V)
C1P...................................................... -0.3V to (VCPVDD + 0.3V)
HPL, HPR........................... (VCPVSS - 0.3V) to (VCPVDD + 0.3V)
INA1, INA2, INB1, INB2........................................-0.3V to +6.0V
SDA, SCL..............................................................-0.3V to +6.0V
SPKP, SPKN...........................................-0.3V to (VPVDD + 0.3V)
HPSNS...................................................................-0.3V to +0.3V
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
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, VPVDD = 4.2V, VGND = VPGND = 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal
configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential.
Speaker loads (ZSPK) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P‑C1N = CCPVDD = CCPVSS = CBIAS = 1FF. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
Speaker Amplifier Supply
Voltage Range
Headphone Amplifier Supply
Voltage Range
SYMBOL
CONDITIONS
TYP
MAX
UNITS
PVDD
Guaranteed by PSRR test
2.7
5.5
V
VDD
Guaranteed by PSRR test
1.6
2
V
IVDD
1.21
1.6
IPVDD
1.07
1.3
IVDD
2.46
2.95
IPVDD
1.34
1.6
IVDD
0.1
0.15
IPVDD
2.25
2.6
IVDD
1.35
1.65
IPVDD
2.6
2.95
1.21
1.6
2.74
3.2
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
Quiescent Current
MIN
IDD
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
IVDD
stereo SE input on INA routed
to HP and SPK output; SPK and
HP expanders, DRC, and limiter
IPVDD
all disabled
mA
����������������������������������������������������������������� Maxim Integrated Products 7
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 1.8V, VPVDD = 4.2V, VGND = VPGND = 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal
configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential.
Speaker loads (ZSPK) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P‑C1N = CCPVDD = CCPVSS = CBIAS = 1FF. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
Shutdown Current
SYMBOL
ISHDN
Turn On-Time
MIN
TYP
MAX
IVDD, TA = +25NC
CONDITIONS
0.08
2.5
IPVDD, TA = +25NC
0.05
1
SLEW = 0
17
SLEW = 1
10
-3dB to +9dB
15
20.4
28.5
+10.5dB to +12dB
5.2
6.96
9.5
-3.2
-2.98
-2.79
tON
Time from power-on
to full operation
RIN
TA = +25NC
UNITS
FA
ms
PREAMPLIFIERS
Input Resistance
PGAIN_ = 0x0
PGAIN_ = 0x1
-1.49
PGAIN_ = 0x2
Gain
Maximum Input Signal Swing
Common-Mode Rejection Ratio
Input DC Voltage
CMRR
Bias Voltage
VBIAS
kI
-0.22
-0.02
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
+0.21
dB
PGAIN_ = 0xA
11.82
12
12.36
Preamp = 0dB
2.4
VP-P
63
dB
IN__ inputs
1.2
1.23
1.275
V
1.2
1.23
1.275
V
TA = +25NC (volume at mute,
SPKGAIN = 00)
Q0.5
Q2.5
TA = +25NC (volume at 0dB,
SPKGAIN = 00)
Q1.0
-72
f = 1kHz (differential input mode), 0dB
SPEAKER AMPLIFIER
Output Offset Voltage
Click-and-Pop Level
VOS
KCP
Peak voltage,
TA = +25NC,
A-weighted,
32 samples per
second, volume at
0dB, SPKGAIN = 00
(Note 2)
Into shutdown
mV
dBV
Out of shutdown
-65
����������������������������������������������������������������� Maxim Integrated Products 8
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 1.8V, VPVDD = 4.2V, VGND = VPGND = 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal
configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential.
Speaker loads (ZSPK) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P‑C1N = CCPVDD = CCPVSS = CBIAS = 1FF. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
65
90.4
f = 217Hz,
VRIPPLE = 200mVP-P
80
f = 1kHz,
VRIPPLE = 200mVP-P
78
f = 10kHz,
VRIPPLE = 200mVP-P
72
ZSPK = 8I + 68FH,
VPVDD = 4.2V
1007
ZSPK = 8I + 68FH,
VPVDD = 3.6V
735
ZSPK = 4I + 33FH,
VPVDD = 5.0V
2585
VPVDD = 2.7V to
5.5V
Power-Supply Rejection Ratio
(Note 2)
Output Power (Note 3)
Total Harmonic Distortion Plus
Noise
Output Noise
PSRR
POUT
THD+N
TA = +25NC
THD+N = 1%
f = 1kHz, POUT = 700mW, TA = +25NC,
ZSPK = 8I + 68FH
dB
0.048
Noise gate disabled
40
Noise gate enabled
25
Noise gate disabled
93
Noise gate enabled
98
298.9
kHz
Q10
kHz
SNR
A-weighted,
POUT = 700mW
Output Frequency
fOSC
Spread spectrum
SPKGAIN = 00
Gain
0.06
0.029
Signal-to-Noise Ratio
Spread-Spectrum Bandwidth
mW
%
f = 1kHz, POUT = 350mW, TA = +25NC,
ZSPK = 8I + 68FH
A-weighted
UNITS
SPKGAIN = 01
FVRMS
dB
11.69
15.4
15.65
SPKGAIN = 10
19.64
SPKGAIN = 11
23.7
15.92
dB
Current Limit
2
A
Efficiency
h
92
%
Volume Control
POUT = 1W, f = 1kHz, ZSPK = 8I + 68FH
SPKVOL = 0x00
-63.35
-62.87
-62.36
SPKVOL = 0x3F
-0.044
0
0.13
Volume Control Step Size
1
dB
Mute Attenuation
f = 1kHz
118
dB
dB
����������������������������������������������������������������� Maxim Integrated Products 9
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 1.8V, VPVDD = 4.2V, VGND = VPGND = 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal
configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential.
Speaker loads (ZSPK) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P‑C1N = CCPVDD = CCPVSS = CBIAS = 1FF. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
80
83.3
86
665
500
UNITS
CHARGE PUMP
Charge-Pump Frequency
Positive Output Voltage
VCPVDD
Negative Output Voltage
VCPVSS
Output Voltage Threshold
VTH
Mode Transition Timeouts
VHPL = VHPR = 0V
VHPL = VHPR = 0.2V
kHz
VHPL = VHPR = 0.5V
VOUT > VTH
VDD
VOUT < VTH
VDD/2
VOUT > VTH
VOUT < VTH
-VDD
-VDD/2
QVDD
x 0.216
QVDD
x 0.25
QVDD
x 0.278
V
Time it takes for the charge pump to
transition from invert to split mode
30
ms
Time it takes for the charge pump to
transition from split to invert mode
20
Fs
Q0.15
Q0.5
mV
-73
Output voltage at which the charge pump
switches modes, VOUT rising or falling
V
V
HEADPHONE AMPLIFIERS
Output Offset Voltage
Click-and-Pop Level
Power-Supply Rejection Ratio
(Note 2)
VOS
TA = +25NC
KCP
Peak voltage,
TA = +25NC,
A-weighted,
32 samples per
second, volume at
0dB (Note 2)
PSRR
TA = +25NC
Into shutdown
dBV
Out of shutdown
-73
VDD = 1.6V to 2.0V
65
99.9
f = 217Hz,
VRIPPLE = 200mVP-P
93
f = 1kHz,
VRIPPLE = 200mVP-P
88
f = 20kHz,
VRIPPLE = 200mVP-P
65
dB
���������������������������������������������������������������� Maxim Integrated Products 10
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 1.8V, VPVDD = 4.2V, VGND = VPGND = 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal
configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential.
Speaker loads (ZSPK) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P‑C1N = CCPVDD = CCPVSS = CBIAS = 1FF. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
Output Power
SYMBOL
POUT
Channel-to-Channel Gain
Tracking
Total Harmonic Distortion Plus
Noise
Output Noise
THD+N
Signal-to-Noise Ratio
Capacitive Drive
SNR
CL
Crosstalk
CONDITIONS
THD+N = 1%,
PGAINA = -1.5dB,
HPGAIN = +2dB
THD+N = 0.1%,
PGAINA = -1.5dB,
HPGAIN = +2dB
MIN
TYP
MAX
RHP = 16I
42
RHP = 32I
32
RHP = 32I
27
0.25
1.5
0.005
0.006
Noise gate disabled
10
Noise gate enabled
5.9
Noise gate disabled
94.2
Noise gate enabled
96.4
1000
-78
HPL to HPR, volume at 0dB, HPLMIX =
0x1, HPRMIX = 0x2, IN_DIFF = 0
RHP = 32I, POUT = 10mW, f = 1kHz
RHP = 16I, POUT = 10mW, f = 1kHz
A-weighted
A-weighted,
POUT = 10mW
HPL to HPR, HPR
to HPL, RHP = 32I,
POUT = 10mW
f = 20Hz to 10kHz
Volume Control
%
%
FVRMS
dB
pF
-83
-0.53
-0.25
HPGAIN = 01
1.72
HPGAIN = 10
3.72
HPGAIN = 11
5.85
+0.09
dB
HP_VOL = 0x00
-63.74
-63.3
-62.9
HP_VOL = 0x3F
-0.50
-0.27
+0.09
1
dB
100
dB
Volume Control Step Size
Mute Attenuation
mW
dB
f = 1kHz
HPGAIN = 00
Gain
UNITS
f = 1kHz
dB
SPEAKER DRC
Release Time
Attack Time
Compression Ratio
DRCRLS = 000
800
DRCRLS = 101
25
DRCATK = 000
0.5
DRCATK = 111
50
DRCEN = 001
1.34:1
DRCEN = 101
J:1
ms/
step
ms
ratio
���������������������������������������������������������������� Maxim Integrated Products 11
MAX97003
High-Efficiency, Low-Noise Audio Subsystem
ELECTRICAL CHARACTERISTICS (continued)
(VDD = 1.8V, VPVDD = 4.2V, VGND = VPGND = 0V. Headphone path: PGAIN_ = -1.5dB, HP_VOL = 0dB, HPGAIN = +2dB, input signal
configured single-ended. Speaker path: PGAIN_ = 0dB, SPKVOL = 0dB, SPKGAIN = +12dB, input signal configured differential.
Speaker loads (ZSPK) connected between SPKP and SPKN. Headphone loads (RHP) connected from HPL or HPR to GND. SDA and
SCL pullup voltage = 1.8V. ZSPK = J, RHP = J. CC1P‑C1N = CCPVDD = CCPVSS = CBIAS = 1FF. TA = TMIN to TMAX, unless otherwise
noted. Typical values are at TA = +25NC.) (Note 1)
PARAMETER
SYMBOL
Compression Threshold
CONDITIONS
MIN
TYP
MAX
DRCTH = 0x01
0.839
DRCTH = 0x1F
0.199
EXP_ATK = 000
500
EXP_ATK = 101
25
EXP_ATK = 110
15
Low-signal to high-signal transition
0.2
EXP_TH = 0x1
32
EXP_TH = 0xF
1
THDCLP = 0x1
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