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PDF MAX98091 Data sheet ( Hoja de datos )
| Número de pieza | MAX98091 | |
| Descripción | Ultra-Low Power Stereo Audio Codec | |
| Fabricantes | Maxim Integrated | |
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EVALUATION KIT AVAILABLE
MAX98091
Ultra-Low Power Stereo Audio Codec
General Description
The MAX98091 is a fully integrated audio codec whose
high-performance, ultra-low power consumption and
small footprint make it ideal for portable applications.
The device features a highly flexible input scheme with
six input pins that can be configured as analog or digital
microphone inputs, differential or single-ended line inputs,
or as full-scale direct differential inputs. Analog inputs can
be routed to the record path ADC or directly to any analog
output mixer.
The device accepts master clock frequencies of either
256 x fS or from 10MHz to 60MHz. The digital audio inter-
face supports master or slave mode operation, sample
rates from 8kHz to 96kHz, and standard PCM formats
such as I2S, left/right-justified, and TDM.
The record/playback paths feature FlexSound® technology
DSP. This includes digital gain and filtering, a biquad filter
(record), dynamic range control (playback), and a seven
band parametric equalizer (playback) that can improve loud-
speaker performance by optimizing the frequency response.
The stereo Class D speaker amplifier provides efficient
amplification, features low radiated emissions, supports
filterless operation, and can drive both 4Ω and 8Ω loads.
The DirectDrive® stereo Class H headphone ampli-
fier provides a ground-referenced output eliminating the
need for large DC-blocking capacitors. The device also
includes a differential receiver (earpiece) amplifier that
can be reconfigured as a stereo single-ended line output.
Simplified Block Diagram
BATTERY 1.8V 1.2V
Features and Benefits
● 102dB DR Stereo DAC to HP
● 4.1mW Stereo Playback Power Consumption
● 99dB DR Stereo ADC
● 4.5mW Stereo Record Power Consumption
● 3 Stereo Single-Ended/Differential Analog
Microphone/Line Inputs
● Two PDM Digital Microphone Inputs
● Master Clock Frequencies from 256 x fS to 60MHz
● I2S/LJ/RJ/TDM Digital Audio Interface
● FlexSound Technology Signal Processing
• Record Path Biquad Filter
• Playback Path 7-Band Parametric EQ
• Playback Path Automatic Level Control
• Digital Filtering and Gain/Level Control
● Stereo Low EMI Class D Speaker Amplifiers
• 3.2W/Channel (RL = 4Ω, VSPKVDD = 5V)
• 1.8W/Channel (RL = 8Ω, VSPKVDD = 5V)
● Stereo DirectDrive Class H Headphone Amplifier
Jack Detection and Identification
● Differential Receiver Amplifier/Stereo Line Output
● Extensive Click-and-Pop Reduction Circuitry
● RF Immune Analog Inputs and Outputs
● Programmable Microphone Bias
● I2C Control Interface
● 56-Bump 0.4mm WLP and 48-Pin
6mmx6mmx0.75mm TQFN Packages
I2S/ TDM
I2C
OR
DIGITAL
MICROPHONE
OR
ANALOG
MICROPHONE LINE INPUT
OR
ANALOG
MICROPHONE
LINE INPUT
1
2
3
4
STEREO DIGITAL
MICROPHONE 1
STEREO DIGITAL
MICROPHONE 2
MICROPHONE 1
PREAMP/PGA
(DIFFERENTIAL)
MICROPHONE 2
PREAMP/PGA
(DIFFERENTIAL)
OR
DIGITAL
MICROPHONE
LINE INPUT A PGA
5 (DIFFERENTIAL OR
6 SINGLE-ENDED)
OR
ANALOG
MICROPHONE LINE INPUT
LINE INPUT B PGA
(DIFFERENTIAL OR
SINGLE-ENDED)
POWER
MANAGEMENT
DIGITAL AUDIO
INTERFACE
CONTROL
REGISTERS
STEREO
ADC
FLEXSOUND DSP
• DIGITAL BIQUAD FILTER
(RECORD)
• 7-BAND PARAMETRIC
EQUALIZER (PLAYBACK)
• DYNAMIC RANGE CONTROL
(PLAYBACK)
• DIGITAL FILTERING
• DIGITAL GAIN/LEVEL
CONTROL
STEREO
DAC
OR
3-POLE (TRS) 4-POLE (TRRS)
JACK DETECTION
MAX98091
For related parts and recommended products to use with this part, refer
to www.maximintegrated.com/MAX98091.related.
Ordering Information appears at end of data sheet.
19-6700; Rev 2; 11/14
STEREO LINE OUTPUT
CLASS AB AMPLIFIER
(SINGLE ENDED)
OR
SPEAKER LEFT
CLASS D AMPLIFIER
(DIFFERENTIAL)
SPEAKER LEFT
CLASS D AMPLIFIER
(DIFFERENTIAL)
SPEAKER RIGHT
CLASS D AMPLIFIER
(DIFFERENTIAL)
STEREO HEADPHONE
CLASS H AMPLIFIER
(SINGLE-ENDED)
CHARGE PUMP
LINE OUTPUT
OR
RECEIVER/
EARPIECE
SPEAKER
LEFT/ RIGHT
HEADPHONES
OR
HEADSET
1 page  
MAX98091
Ultra-Low Power Stereo Audio Codec
LIST OF FIGURES
Figure 1. I2S Audio Interface Timing Diagrams (TDM = 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 2. TDM Audio Interface Short Mode Timing Diagram (TDM = 1, BCI = 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Figure 3. I2C Interface Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Figure 4. Digital Microphone Timing Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 5. Analog Audio Input Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Figure 6. Analog Microphone Input Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Figure 7. Digital Microphone Input Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 8. Secondary Record Path Sample Rate Division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Figure 9. Digital Microphone Compensation Filter Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 10. Analog Line Input Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Figure 11. Analog Line Input External Gain Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Figure 12. Analog Direct to ADC Mixer Input Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Figure 13. Record Path Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Figure 14. Record Path ADC Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Figure 15. Record Path FlexSound Technology DSP Block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Figure 16. Simplified Digital Audio Interface Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Figure 17. DAI Clock Control and Configuration Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Figure 18. DAI Digital Data Path Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Figure 19. Digital Audio Interface (DAI) Data Path Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Figure 20. DAI Timing for I2S Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Figure 21. DAI Timing for Left Justified Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Figure 22. DAI Timing for Right Justified Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Figure 23. DAI Timing for TDM Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Figure 24. Playback Path Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Figure 25. Playback Path Sidetone and Level Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
Figure 26. Playback Path DSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Figure 27. Dynamic Range Compression and Expansion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Figure 28. DRC Enable and Make-Up Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Figure 29. DRC Compression Ratio and Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Figure 30. DRC Expansion Ratio and Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Figure 31. DRC Attack and Release Time Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Figure 32. Playback Path Digital-to-Analog Converter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Figure 33. Analog Audio Output Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Figure 34. Receiver Output Functional Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
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Maxim Integrated │ 5
5 Page 
MAX98091
Ultra-Low Power Stereo Audio Codec
Absolute Maximum Ratings
(Voltages with respect to AGND, unless otherwise noted.)
AVDD, DVDD, HPVDD..........................................-0.3V to +2.2V
SPKVDD, DVDDIO................................................-0.3V to +6.0V
DGND, HPGND, SPKLGND, SPKRGND..............-0.1V to +0.1V
CPVDD.............................(VHPGND - 0.3V) to (VHPGND + 2.2V)
CPVSS.............................(VHPGND - 2.2V) to (VHPGND + 0.3V)
C1N...................................(VCPVSS - 0.3V) to (VHPGND + 0.3V)
C1P................................... (VHPGND - 0.3V) to (VCPVDD + 0.3V)
MICBIAS............................................-0.3V to (VSPKVDD + 0.3V)
REF, BIAS............................................. -0.3V to (VAVDD + 0.3V)
MCLK, SDIN, SDA, SCL, IRQ...............................-0.3V to +6.0V
HPSNS.............................(VHPGND - 0.3V) to (VHPGND + 0.3V)
HPL, HPR..........................(VCPVSS - 0.3V) to (VCPVDD + 0.3V)
RCVP/LOUTL..............(VSPKLGND - 0.3V) to (VSPKVDD + 0.3V)
RCVN/LOUTR.............(VSPKLGND - 0.3V) to (VSPKVDD + 0.3V)
SPKLP, SPKLN...........(VSPKLGND - 0.3V) to (VSPKVDD + 0.3V)
SPKRP, SPKRN......... (VSPKRGND - 0.3V) to (VSPKVDD + 0.3V)
JACKSNS..............................................................-0.3V to +6.0V
Continuous Power Dissipation (TA = +70°C)
WLP (derate 25mW/°C above +70°C)..............................1.9W
TQFN (derate 37mW/°C above +70°C)..........................2.96W
Operating Temperature Range............................ -40°C to +85°C
LRCLK, BCLK, SDOUT..................... -0.3V to (VDVDDIO + 0.3V)
IN1, IN2, IN3, IN4, IN5, IN6..................................-0.3V to +2.2V
Storage Temperature Range............................. -65°C to +150°C
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.
Package Thermal Characteristics (Note 1)
WLP
TQFN
Junction-to-Ambient Thermal Resistance (θJA)...........40°C/W
Junction-to-Case Thermal Resistance (θJC)..................1°C/W
Junction-to-Ambient Thermal Resistance (θJA)...........27°C/W
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial.
Electrical Characteristics
(VAVDD = VHPVDD = VDVDDIO = 1.8V, VDVDD = 1.2V, VSPKVDD = 3.7V. Receiver load (RRCV) connected between RCVP/LOUTL
and RCVN/LOUTR (LINMOD = 0). Line output loads (RLOUT) connected between from RCVP/LOUTL and RCVN/LOUTR to GND
(LINMOD = 1). Headphone loads (RHP) connected from HPL or HPR to GND. Speaker loads (ZSPK) connected between SPK_P and
SPK_N. RRCV = J, RLOUT = J, RHP = J, ZSPK = J. CREF = 2.2µF, CBIAS = CMICBIAS = 1µF, CC1N-C1P = CCPVDD = CCPVSS = 1µF.
AV_MICPRE_ = AV_MICPGA_ = AV_LINEPGA_= 0dB, AV_ADCLVL = AV_ADCGAIN = 0dB, AV_DACLVL = AV_DACGAIN = 0dB, AV_MIXGAIN
= 0dB, AV_RCV = AV_LOUT = AV_HP = AV_SPK = 0dB. fMCLK = 12.288MHz, fLRCLK = 48kHz, MAS = 0, 20-bit source data. TA = TMIN
to TMAX unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
POWER SUPPLY
Supply Voltage Range
Quiescent Supply Current (Note 4)
SYMBOL
IVDD
CONDITIONS
VSPKVDD
Guaranteed by
PSRR (Note 3)
VAVDD, VHPVDD
VDVDD (WLP)
VDVDD (TQFN)
VDVDDIO
Full-duplex 8kHz Analog
mono, receiver Speaker
output
Digital
DAC playback
48kHz stereo,
headphone
outputs
Analog
Speaker
Digital
DAC playback
48kHz stereo,
speaker outputs
Analog
Speaker
Digital
MIN
2.8
1.65
1.08
1.08
1.65
TYP MAX UNITS
3.7
1.8
1.2
1.2
1.8
1.94
0.73
0.97
1.45
0
1.04
0.91
2.18
1.05
5.5
2
1.98 V
1.65
3.6
2
0.005
1.5
mA
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11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MAX98091.PDF ] | |
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