Audio Codec. MAX9867 Datasheet

MAX9867 Codec. Datasheet pdf. Equivalent

Part MAX9867
Description Stereo Audio Codec
Feature 19-4573; Rev 0; 4/09 www.DataSheet4U.com Ultra-Low Power Stereo Audio Codec General Description Th.
Manufacture Maxim Integrated Products
Total Page 30 Pages
Datasheet
Download MAX9867 Datasheet



MAX9867
19-4573; Rev 2; 6/10
Ultra-Low Power Stereo Audio Codec
General Description
The MAX9867 is an ultra-low power stereo audio codec
designed for portable consumer devices such as
mobile phones and portable gaming consoles.
The device features stereo differential microphone inputs
that can be connected to either analog or digital micro-
phones. The single-ended line inputs, with configurable
preamplifier, can be sent to the ADC for record or routed
directly to the headphone amplifier for playback. An aux-
iliary ADC path can be used to track any DC voltage.
The stereo headphone amplifiers support differential,
single-ended, and capacitorless output configurations.
Using the capacitorless output configuration, the
device can output 10mW into 32headphones.
Comprehensive click-and-pop circuitry suppresses
audible clicks and pops during volume changes and
startup or shutdown.
Utilizing Maxim’s proprietary digital circuitry, the device
can accept any available 10MHz to 60MHz system
clock. This architecture eliminates the need for an
external PLL and multiple crystal oscillators. The stereo
ADC and DAC paths provide user-configurable voice-
band or audioband digital filters. Voiceband filters pro-
vide extra attenuation at the GSM packet frequency
and greater than 70dB stopband attenuation at fS/2.
The MAX9867 operates from a single 1.8V supply, and
supports a 1.65V to 3.6V logic level. An I2C 2-wire seri-
al interface provides control for volume levels, signal
mixing, and general operating modes.
The MAX9867 is available in a tiny 2.2mm x 2.7mm,
0.4mm-ball-pitch, WLP package. A 32-pin 5mm x 5mm
TQFN package is also available.
Features
o 1.8V Single-Supply Operation
o 6.7mW Playback Power Consumption
o 90dB Stereo DAC, 8kHz fS 48kHz
o 85dB Stereo ADC, 8kHz fS 48kHz
o Battery-Measurement Auxiliary ADC
o Support for Any Master Clock Between 10MHz to
60MHz
o Stereo Digital Microphone Input Support
o Stereo Analog Differential Microphone Inputs
o Stereo Headphone Amplifiers: Differential,
Single-Ended, or Capacitorless
o Stereo Line Inputs
o Voiceband Filter with a Stopband Attenuation
Greater than 70dB
o 1.65V to 3.6V Digital Interface Supply Voltage
o I2S/TDM-Compatible Digital Audio Bus
o 30-Bump, 2.2mm x 2.7mm 0.4mm-Pitch WLP
Applications
Cell Phones
Portable Gaming Devices
Portable Navigation Devices
Portable Multimedia Players
Wireless Headsets
Ordering Information
PART
TEMP RANGE PIN-PACKAGE
MAX9867EWV+
-40°C to +85°C 30 WLP
MAX9867ETJ+
-40°C to +85°C 32 TQFN-EP*
+Denotes lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
Simplified Block Diagram
I2S/PCM
I2C
LINEIN 1
LINEIN 2
LEFT MIC AMP
DIGITAL MICROPHONE
INTERFACE
RIGHT MIC AMP
LEFT PREAMP
RIGHT PREAMP
DIGITAL AUDIO INTERFACE
CONTROL
INTERFACE
MIX ADC
ADC
AUDIO DIGITAL
FILTERS
MAX9867
DAC
HEADPHONE
AMP
DAC
MIX
HEADPHONE
AMP
________________________________________________________________ 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.



MAX9867
Ultra-Low Power Stereo Audio Codec
ABSOLUTE MAXIMUM RATINGS
(Voltages with respect to AGND.)
DVDD, AVDD, and PVDD .........................................-0.3V to +2V
DVDDIO.................................................................-0.3V to +3.6V
DGND and PGND..................................................-0.1V to +0.1V
PREG, REF, REG, MICBIAS ....................-0.3V to (AVDD + 0.3V)
MCLK, LRCLK, BCLK
SDOUT, SDIN .................................-0.3V to (DVDDIO + 0.3V)
SDA, SCL, IRQ ......................................................-0.3V to +3.6V
LOUTP, LOUTN, ROUTP,
ROUTN .................................(PGND - 0.3V) to (PVDD + 0.3V)
LINL, LINR, JACKSNS/AUX, MICLP/DIGMICDATA,
MICLN/DIGMICCLK, MICRP, MICRN..-0.3V to (AVDD + 0.3V)
Continuous Power Dissipation (TA = +70°C)
30-Bump WLP (derate 12.5mW/°C above +70°C) ....1000mW
32-Pin TQFN-EP (derate 34.5mW/°C above +70°C) .2759mW
Junction-to-Ambient Thermal Resistance (θJA) (Note 1)
30-Bump WLP .............................................................80°C/W
32-Pin TQFN-EP ..........................................................29°C/W
Operating Temp Range .......................................-40°C to +85°C
Storage Temp Range ........................................-65°C to +150°C
Lead Temperature (TQFN only, 10s) ...............................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
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
(VAVDD = VPVDD = VDVDD = VDVDDIO = +1.8V, RL = , headphone load (RL) connected between _OUTP and _OUTN in differential
mode, CREF = 2.2µF, CMICBIAS = CPREG = CREG = 1µF, AVPRE = +20dB, AVPGAM = 0dB, AVDAC = 0dB, AVLINE = +20dB, AVVOL =
0dB, MCLK = 13MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
Supply Voltage Range
SYMBOL
CONDITIONS
PVDD, DVDD, AVDD
DVDDIO
Full-duplex 8kHz
mono (voice mode)
(Note 3)
Analog (AVDD +
PVDD)
Digital (DVDD +
DVDDIO)
MIN
1.65
1.65
TYP
1.8
1.8
4.65
MAX
1.95
3.6
UNITS
V
7
0.96 1.5
Total Supply Current
IVDD
DAC playback 48kHz
stereo (audio mode)
(Note 3)
Analog (AVDD +
PVDD)
Digital (DVDD +
DVDDIO)
Full-duplex 48kHz
stereo (audio mode)
(Note 3)
Analog (AVDD +
PVDD)
Digital (DVDD +
DVDDIO)
3.28 5
1.40 2
8.0 12
2.0 3
mA
Stereo line-in only
Analog (AVDD +
PVDD)
Digital (DVDD +
DVDDIO)
3.8 6
0.004 0.05
Shutdown Supply Current
TA = +25°C
Analog (AVDD +
PVDD)
Digital (DVDD +
DVDDIO)
15
µA
15
2 _______________________________________________________________________________________





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