MAX9856ETL+ Maxim Integrated Products, MAX9856ETL+ Datasheet - Page 12
![IC CODEC AUDIO LP 40TQFN-EP](/photos/6/65/66502/40-qfn_pkg_sml.jpg)
MAX9856ETL+
Manufacturer Part Number
MAX9856ETL+
Description
IC CODEC AUDIO LP 40TQFN-EP
Manufacturer
Maxim Integrated Products
Type
Audio Codecr
Datasheet
1.MAX9856ETL.pdf
(46 pages)
Specifications of MAX9856ETL+
Data Interface
Serial
Resolution (bits)
18 b
Number Of Adcs / Dacs
2 / 2
Sigma Delta
Yes
S/n Ratio, Adcs / Dacs (db) Typ
77 / 91
Dynamic Range, Adcs / Dacs (db) Typ
85 / 91
Voltage - Supply, Analog
1.71 V ~ 3.6 V
Voltage - Supply, Digital
1.71 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
40-WFQFN Exposed Pad
Number Of Adc Inputs
2
Number Of Dac Outputs
2
Interface Type
I2C
Resolution
18 bit
Operating Supply Voltage
1.71 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Supply Current
2.9 mA
Thd Plus Noise
82 dB
Audio Codec Type
Stereo
No. Of Adcs
2
No. Of Dacs
2
No. Of Input Channels
2
No. Of Output Channels
2
Adc / Dac Resolution
18bit
Adcs / Dacs Signal To Noise Ratio
91dB
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Low-Power Audio CODEC with
DirectDrive Headphone Amplifiers
(V
=1µF, V
12
AVDD
-100
-120
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
-20
-40
-60
-80
20
20
______________________________________________________________________________________
0
0
000E+0
0
000E+0
10
AVPRE
= V
SYNCHRONOUS SLAVE MODE, -60dBFS
ASYNCHRONOUS SLAVE MODE, 0dBFS
V
POWER-SUPPLY REJECTION RATIO
2E+3
RIPPLE
2E+3
CPVDD
FFT, DAC TO LINE OUT, 48kHz
FFT, DAC TO LINE OUT, 48kHz
vs. FREQUENCY (DAC TO HP)
4E+3
4E+3
= +20dB, C
= 100mV
100
6E+3
6E+3
= V
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
8E+3
8E+3
P-P
DVDDS2
10E+3
10E+3
1k
12E+3
MICBIAS
12E+3
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
MCLK = 12.288MHz
LRCLK = 48kHz
PCLK/2
14E+3
14E+3
= V
10k
16E+3
16E+3
DVDD
= 1µF, V
18E+3
18E+3
20E+3
= 1.8V, R
20E+3
100k
AVMICPGA
HP
-100
-120
Typical Operating Characteristics (continued)
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
-20
-40
-60
-80
20
20
0
0
000E+0
0
000E+0
= 32Ω, R
10
ASYNCHRONOUS MASTER MODE, 0dBFS
ASYNCHRONOUS SLAVE MODE, -60dBFS
= 0dB, MCLK = 12.288MHz, DRATE = 10, T
V
vs. FREQUENCY (DAC TO LINE OUT)
POWER-SUPPLY REJECTION RATIO
2E+3
2E+3
RIPPLE
FFT, DAC TO LINE OUT, 48kHz
FFT, DAC TO LINE OUT, 48kHz
4E+3
4E+3
= 100mV
LINE
100
6E+3
6E+3
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
8E+3
8E+3
= 10kΩ, C1 = 4.7µF, C2 = 4.7µF, C
P-P
10E+3
10E+3
1k
12E+3
12E+3
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
14E+3
14E+3
10k
16E+3
16E+3
18E+3
18E+3
20E+3
20E+3
100k
-100
-120
-140
-100
-120
-140
-100
-120
-140
-20
-40
-60
-80
-20
-40
-60
-80
-20
-40
-60
-80
20
20
20
0
0
000E+0
0
000E+0
A
ASYNCHRONOUS MASTER MODE, -60dBFS
SYNCHRONOUS MASTER MODE (0dBFS)
0
= +25°C, unless otherwise noted.)
SYNCHRONOUS SLAVE MODE, 0dBFS
REF
2E+3
2E+3
FFT, DAC TO LINE OUT, 48kHz
FFT, LINE IN TO ADC (48kHz)
FFT, DAC TO LINE OUT, 48kHz
4E+3
4E+3
= C
5k
6E+3
6E+3
MBIAS
FREQUENCY (Hz)
FREQUENCY (Hz)
FREQUENCY (Hz)
8E+3
8E+3
10E+3
10E+3
10k
= C
12E+3
12E+3
MCLK = 11.2896MHz
LRCLK = 48kHz
PCLK/2
MCLK = 12.288MHz
LRCLK = 48kHz
PCLK/2
MCLK = 12.288MHz
LRCLK = 48kHz
PCLK/2
PREG
14E+3
14E+3
15k
16E+3
16E+3
= C
18E+3
18E+3
NREG
20E+3
20E+3
20k