Voice Codec. MAX9860 Datasheet

MAX9860 Codec. Datasheet pdf. Equivalent

Part MAX9860
Description 16-Bit Mono Audio Voice Codec
Feature MAX9860 16-Bit Mono Audio Voice Codec General Description The MAX9860 is a low-power, voiceband, mo.
Manufacture Maxim Integrated Products
Datasheet
Download MAX9860 Datasheet



MAX9860
MAX9860
16-Bit Mono Audio Voice Codec
General Description
The MAX9860 is a low-power, voiceband, mono audio
codec designed to provide a complete audio solution
for wireless voice headsets and other mono voice audio
devices. Using an on-chip bridge-tied load mono head-
phone amplifier, the MAX9860 can output 30mW into a
32earpiece while operating from a single 1.8V power
supply. Very low power consumption makes it an ideal
choice for battery-powered applications.
The MAX9860’s flexible clocking circuitry utilizes com-
mon system clock frequencies ranging from 10MHz to
60MHz, eliminating the need for an external PLL and
multiple crystal oscillators. Both the ADC and DAC sup-
port sample rates of 8kHz to 48kHz in either synchro-
nous or asynchronous operation. Both master and slave
timing modes are supported.
Two differential microphone inputs are available with a
user-programmable preamplifier and programmable
gain amplifier. Automatic gain control with selectable
attack/release times and signal threshold allows maxi-
mum dynamic range. A noise gate with selectable
threshold provides a means to quiet the channel when
no signal is present. Both the DAC and ADC digital filters
provide full attenuation for out-of-band signals as well as
a 5th order GSM-compliant digital highpass filter. A digi-
tal side tone mixer provides loopback of the micro-
phones/ADC signal to the DAC/headphone output.
Serial DAC and ADC data is transferred over a flexible
digital I2S-compatible interface that also supports TDM
mode. Mode settings, volume control, and shutdown are
programmed through a 2-wire, I2C-compatible interface.
The MAX9860 is fully specified over the -40°C to +85°C
extended temperature range and is available in a low-
profile, 4mm x 4mm, 24-pin thin QFN package.
Applications
Audio Headsets
Portable Navigation Device
Mobile Phones
Smart Phones
VoIP Phones
Audio Accessories
Pin Configuration and Typical Operating Circuit appear at
end of data sheet.
Features
o 1.8V Single-Supply Operation
o Digital Highpass Elliptical Filters with Notch for
217Hz (GSM)
o Mono 30mW BTL Headphone Amplifier
o Dual Low-Noise Microphone Inputs
o Automatic Microphone Gain Control and Noise
Gate
o 90dB DAC DR (fS = 48kHz)
o 81dB ADC DR (fS = 48kHz)
o Supports Master Clock Frequencies from 10MHz
to 60MHz
o Supports Sample Rates from 8kHz to 48kHz
o Flexible Digital Audio Interface
o Clickless/Popless Operation
o 2-Wire, I2C-Compatible Control Interface
o Available in 24-Pin, Thin QFN, 4mm x 4mm x
0.8mm Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX9860ETG+
-40°C to +85°C
24 TQFN-EP*
+Denotes a lead-free/RoHS-compliant package.
*EP = Exposed pad.
Simplified Block Diagram
DVDDIO
1.7V TO 3.6V
AVDD AND DVDD
1.7V TO 1.9V
DIGITAL AUDIO
INPUT/OUTPUT
I2C
INTERFACE
MAX9860
DAC
DIGITAL
AUDIO
INTERFACE
DIGITAL
FILTERING
AND
MIXERS
ADC
CLOCK
CONTROL
ADC
DIFF
MIC
DIFF
MIC
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4349; Rev 2; 2/12



MAX9860
MAX9860
16-Bit Mono Audio Voice Codec
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to AGND.)
DVDDIO, SDA, SCL, IRQ.......................................-0.3V to +3.6V
AVDD, DVDD............................................................-0.3V to +2V
AGND, DGND, MICGND .......................................-0.3V to +0.3V
OUTP, OUTN, PREG, REF, MICBIAS .....-0.3V to (VAVDD + 0.3V)
MICLP, MICLN, MICRP, MICRN, REG....-0.3V to (VPREG + 0.3V)
MCLK, LRCLK, BCLK,
SDOUT, SDIN..................................-0.3V to (VDVDDIO + 0.3V)
Continuous Power Dissipation (TA = +70°C)
24-Pin TQFN (derate 27.8mW/°C above +70°C,
multilayer board) ......................................................2222mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°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)
TQFN
Junction-to-Ambient Thermal Resistance (θJA)...............36°C/W
Junction-to-Case Thermal Resistance (θJC)......................3°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 = VDVDD = VDVDDIO = +1.8V, RL = , headphone load (RL) connected between OUTP and OUTN, CREF = 2.2µF, CMICBIAS =
CPREG = CREG = 1µF, AVPRE = +20dB, AVMICPGA = 0dB, fMCLK = 13MHz, fLRCLK = 8kHz, TA = TMIN to TMAX, unless otherwise noted.
Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
AVDD (inferred from HP output PSRR)
1.7 1.8 1.9
Supply Voltage Range
DVDD (inferred from codec performance
tests)
1.7
1.8
1.9
V
DVDDIO
1.7 1.8 3.6
DAC playback mode
(48kHz)
AVDD
DVDD
1.46 2.2
1.05 1.6
Total Supply Current
(Note 3)
IAVDD+DVDD
Full operation
8kHz mono ADC + DAC
Full operation
8kHz stereo ADC + DAC
AVDD
DVDD
AVDD
DVDD
4.08 5.7
0.78 1.0
6.17 9.0
0.8 1.2
mA
AVDD
Stereo ADC only (48kHz)
DVDD
5.38 8.0
1.68 2.2
Shutdown Supply Current
ISHDN TA = +25°C
AVDD
DVDD +
DVDDIO
0.56 5
1.65 5
µA
Shutdown to Full Operation
10 ms
DAC (Note 4)
Gain Error
±1 ±5
%
Dynamic Range (Note 5)
DAC Full-Scale Output
DAC Path Phase Delay
DR
+0dB volume setting, fS = 8kHz, measured
84
at headphone output, TA = +25°C
90
1
f = 1kHz, 0dBFS, HP
filter disabled, digital
input to analog output
fS = 8kHz
fS = 16kHz
1.2
0.59
dB
VRMS
ms
Total Harmonic Distortion + Noise
2
THD+N
f = 1kHz, fMCLK = 12.288MHz,
fLRCLK = 48kHz
-87 dB
Maxim Integrated





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