Datasheet

MAX9867
Ultra-Low Power Stereo Audio Codec
14 ______________________________________________________________________________________
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc10
POWER OUT (mW)
THD+N (dB)
81042126
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
MCLK = 12.288MHz
LRCLK = 48kHz
R
LOAD
= 32
Ω
CAPACITORLESS MODE
6kHz
20Hz
1kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc11
FREQUENCY (Hz)
THD+N (%)
1000100
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10 10,000
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 32
Ω
CAPACITORLESS MODE
1mW
5mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc12
FREQUENCY (Hz)
THD+N (%)
100 10,000
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10 1000 100,000
MCLK = 12.288MHz
LRCLK = 48kHz
R
LOAD
= 32
Ω
CAPACITORLESS MODE
1mW
5mW
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc13
POWER OUT (mW)
THD+N (dB)
410682
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 32
Ω
, C
OUT
= 220
µ
F
SINGLE-ENDED MODE
3kHz
20Hz
1kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (DAC TO HEADPHONE)
MAX9867 toc14
POWER OUT (mW)
THD+N (dB)
810426 12
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
0
MCLK = 12.288MHz
LRCLK = 48kHz
R
LOAD
= 32
Ω
, C
OUT
= 220
µ
F
SINGLE-ENDED MODE
6kHz
20Hz
1kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc15
FREQUENCY (Hz)
THD+N (%)
1000100
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10 10,000
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 32
Ω
, C
OUT
= 220
µ
F
SINGLE-ENDED MODE
P
OUT
SPECIFIED AT 1kHz
1mW
5mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HEADPHONE)
MAX9867 toc16
FREQUENCY (Hz)
THD+N (%)
100 10,000
-50
-40
-30
-80
-70
-60
-20
-10
0
-90
10 1000 100,000
MCLK = 13MHz
LRCLK = 8kHz
R
LOAD
= 32
Ω
, C
OUT
= 220
µ
F
SINGLE-ENDED MODE
P
OUT
SPECIFIED AT 1kHz
1mW
5mW
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (LINE IN TO HEADPHONE)
MAX9867 toc17
POWER OUT (mW)
THD+N (dB)
402515 2010 4535305
-50
-40
-30
-70
-60
-20
-10
0
-80
050
LINE IN PREAMP = +18dB
R
LOAD
= 32
Ω
DIFFERENTIAL MODE
6kHz
20Hz
1kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. POWER OUT (LINE IN TO HEADPHONE)
MAX9867 toc18
POWER OUT (mW)
THD+N (dB)
2510 20 3530155
-50
-40
-30
-70
-80
-60
-20
-10
0
-90
040
LINE IN PREAMP = 0dB
R
LOAD
= 32
Ω
DIFFERENTIAL MODE
1kHz
6kHz
20Hz
Typical Operating Characteristics (continued)
(V
AVDD
= V
DVDD
= V
PVDD
= +1.8V, C
REF
= 2.2µF, C
MICBIAS
= C
PREG
= C
REG
= 1µF, AV
MICPGA
= 0dB, MCLK = 13MHz, LRCLK =
8kHz, BW = 20Hz to f
S
/2, T
A
= +25°C, unless otherwise noted.)