MAX9856ETL+ Maxim Integrated Products, MAX9856ETL+ Datasheet - Page 12

• Manufacturer Part Number: MAX9856ETL+
• Description: IC CODEC AUDIO LP 40TQFN-EP
• Manufacturer: Maxim Integrated Products
• Type: Audio Codecr

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