MAX9856ATL/V+ Maxim Integrated, MAX9856ATL/V+ Datasheet - Page 11

• Manufacturer Part Number: MAX9856ATL/V+
• Description: Interface - CODECs Low-Power Audio Codec With Directdrive. Headphone Amplifiers
• Manufacturer: Maxim Integrated
• Series: MAX9856r

Specifications of MAX9856ATL/V+

• Resolution: 18 bit
• Interface Type: Serial (I2C)
• Number Of Adcs: 2
• Number Of Dacs: 2
• Operating Supply Voltage: 1.71 V to 3.6 V
• Supply Current: 2.9 mA
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.71 V
• Thd Plus Noise: 82 dB

(V
=1µF, V
AVDD
0.001
0.001
0.001
0.01
0.01
0.01
100
0.1
0.1
0.1
10
10
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
10E+0
TOTAL HARMONIC DISTORTION PLUS NOISE
10
TOTAL HARMONIC DISTORTION + NOISE
0
AVPRE
= V
HP GAIN = +5.5dB
R
HP GAIN = +5.5dB
R
ADC
MIC PREAMP = +20dB
MIC GAIN = 0dB
L
L
vs. FREQUENCY (INTMIC TO ADC)
vs. OUTPUT POWER (DAC TO HP)
= 32Ω
= 16Ω
CPVDD
5mW
5
OUT
vs. FREQUENCY (DAC TO HP)
100E+0
= +20dB, C
1kHz
= -3dBFS
100
10
OUTPUT POWER (mW)
20mW
= V
FREQUENCY (Hz)
FREQUENCY (Hz)
15
______________________________________________________________________________________
DVDDS2
1E+3
20
1k
MICBIAS
20kHz
25
= V
10E+3
10kHz
10k
30
DVDD
= 1µF, V
35
100E+3
DirectDrive Headphone Amplifiers
= 1.8V, R
100k
40
AVMICPGA
0.001
0.001
0.001
HP
0.01
0.01
0.01
100
Low-Power Audio CODEC with
0.1
0.1
0.1
10
10
10
1
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
10E+0
TOTAL HARMONIC DISTORTION PLUS NOISE
= 32Ω, R
10
0
TOTAL HARMONIC DISTORTION + NOISE
= 0dB, f
HP GAIN = +5.5dB
R
V
R
ADC
MIC PREAMP = +30dB
MIC GAIN = 0dB
vs. FREQUENCY (DAC TO LINE OUT)
L
OUT
L
vs. OUTPUT POWER (DAC TO HP)
vs. FREQUENCY (INTMIC TO ADC)
= 16Ω
= 10kΩ
OUT
= 2V
10
100E+0
1kHz
= -3dBFS
LINE
100
P-P
MCLK
OUTPUT POWER (mW)
20
FREQUENCY (Hz)
FREQUENCY (Hz)
= 10kΩ, C1 = 4.7µF, C2 = 4.7µF, C
= 12.288MHz, DRATE = 10, T
1E+3
30
1k
Typical Operating Characteristics
40
10E+3
10k
10kHz
20Hz
50
100E+3
100k
60
0.001
0.001
0.01
0.01
100
0.1
0.1
10
10
10
A
1
1
1
10E+0
TOTAL HARMONIC DISTORTION PLUS NOISE
10
= +25°C, unless otherwise noted.)
TOTAL HARMONIC DISTORTION + NOISE
1
HP GAIN = +5.5dB
R
REF
THD+N = 10%
L
vs. FREQUENCY (LINE IN TO ADC)
= 32Ω
5mW
vs. FREQUENCY (DAC TO HP)
= C
100E+0
100
vs. HEADPHONE LOAD
20mW
HEADPHONE LOAD (Ω)
MBIAS
THD+N = 1%
10
FREQUENCY (Hz)
FREQUENCY (Hz)
POWER OUT
1E+3
= C
1k
PREG
100
10E+3
10k
= C
f
IN
= 1kHz
NREG
100E+3
1000
100k
11