Datasheet
MAX9850
Stereo Audio DAC with DirectDrive
Headphone Amplifier
10 ______________________________________________________________________________________
-40
-50
-60
-70
-80
-90
-110
-120
10 100 10k 100k
CROSSTALK vs. FREQUENCY
(DAC IN TO HP OUT)
-100
MAX9850toc22
FREQUENCY (Hz)
CROSSTALK (dB)
1k
L TO R
R TO L
VOLUME SET TO -9.5dB
DAC IN = 0dBFS
R
LOAD
= 32Ω
-40
-50
-60
-70
-80
-90
-110
-120
10 100 10k 100k
CROSSTALK vs. FREQUENCY
(LINE IN TO HP OUT)
-100
MAX9850toc23
FREQUENCY (Hz)
CROSSTALK (dB)
1k
L TO R
R TO L
VOLUME SET TO -9.5dB
LINE IN = 1V
RMS
R
LOAD
= 32Ω
-40
-50
-60
-70
-80
-90
-110
-120
10 100 10k 100k
CROSSTALK vs. FREQUENCY
(DAC IN TO LINE OUT)
-100
MAX9850toc24
FREQUENCY (Hz)
CROSSTALK (dB)
1k
L TO R
R TO L
VOLUME SET TO -9.5dB
DAC IN = 0dBFS
-140
-100
-120
-60
-80
-20
-40
0
FFT, SLAVE NONINTEGER MODE
(DAC IN = 0dBFS)
MAX9850toc25
FREQUENCY (kHz)
LINE OUT (dBFS)
0 5 10 15 20
LINE OUT
f
IN
= 1kHz
f
MCLK
= 12MHz
-140
-100
-120
-60
-80
-20
-40
0
FFT, SLAVE NONINTEGER MODE
(DAC IN = -60dBFS)
MAX9850toc26
FREQUENCY (kHz)
LINE OUT (dBFS)
0 5 10 15 20
LINE OUT
f
IN
= 1kHz
f
MCLK
= 12MHz
-140
-100
-120
-60
-80
-20
-40
0
FFT, SLAVE NONINTEGER MODE
(DAC IN = IDLE)
MAX9850toc27
FREQUENCY (Hz)
LINE OUT (dBFS)
0 5 10 15 20
LINE OUT
f
MCLK
= 12MHz
-140
-100
-120
-60
-80
-20
-40
0
FFT, MASTER INTEGER MODE
(DAC IN = 0dBFS)
MAX9850toc28
FREQUENCY (Hz)
LINE OUT (dBFS)
0 5 10 15 20
LINE OUT
f
IN
= 1kHz
f
MCLK
= 12.288MHz
-140
-100
-120
-60
-80
-20
-40
0
FFT, MASTER INTEGER MODE
(DAC IN = -60dBFS)
MAX9850toc29
FREQUENCY (Hz)
LINE OUT (dBFS)
0 5 10 15 20
LINE OUT
f
IN
= 1kHz
f
MCLK
= 12.288MHz
-140
-100
-120
-60
-80
-20
-40
0
FFT, MASTER INTEGER MODE
(DAC IN = IDLE)
MAX9850toc30
FREQUENCY (Hz)
LINE OUT (dBFS)
0 5 10 15 20
LINE OUT
f
MCLK
= 12.288MHz
Typical Operating Characteristics (continued)
(DV
DD
= AV
DD
= PV
DD
= 3.0V, AGND = DGND = PGND = 0V, C1 = 0.47µF, C2 = 2.2µF, C
NREG
= C
PREG
= C
REF
= 1µF, f
S
= 48kHz,
f
MCLK
= 12.288MHz, master integer mode, headphone volume set to +6dB, both channels driven in-phase, T
A
= +25°C, unless
otherwise noted. f
IN
= 984.375Hz, A-weighted THD+N.)