Datasheet

TOTAL HARMONIC DISTORTION + NOISE
vs. OUTPUT POWER (DAC TO HP)
MAX9860 toc01
OUTPUT POWER (mW)
THD+N (%)
252015105
0.01
0.1
1
10
0.001
030
R
L
= 32Ω
f = 3.5kHz
f = 1kHz
f = 20kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. OUTPUT POWER (DAC TO HP)
MAX9860 toc02
OUTPUT POWER (mW)
THD+N (%)
5040302010
0.01
0.1
1
10
0.001
060
R
L
= 16Ω
f = 3.5kHz
f = 1kHz
f = 20kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HP)
MAX9860 toc03
FREQUENCY (kHz)
THD+N (%)
10.1
0.01
0.1
1
10
0.001
0.01 10
R
L
= 32Ω
P
OUT
= 5mW
P
OUT
= 20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HP)
MAX9860 toc04
FREQUENCY (kHz)
THD+N (%)
10.1
0.01
0.1
1
10
0.001
0.01 10
R
L
= 16Ω
P
OUT
= 5mW
P
OUT
= 20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (MICL TO ADC)
MAX9860 toc05
FREQUENCY (kHz)
THD+N (%)
1010.1
0.01
0.1
1
10
0.001
0.01 100
MICPRE = 0dB
V
IN
= 1V
P-P
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (MICL TO ADC)
MAX9860 toc06
FREQUENCY (kHz)
THD+N (%)
1010.1
0.1
1
10
0.01
0.01 100
MICPRE = +20dB
V
IN
= 100mV
P-P
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (MICL TO ADC)
MAX9860 toc07
FREQUENCY (kHz)
THD+N (%)
1010.1
0.01
0.1
1
10
0.001
0.01 100
MICPRE = +30dB
V
IN
= 31V
P-P
HEADPHONE OUTPUT POWER
vs. LOAD RESISTANCE
MAX9860 toc08
LOAD RESISTANCE (Ω)
OUTPUT POWER (mW)
125100755025
10
20
30
40
50
60
0
0150
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (DAC TO HP)
MAX9860 toc09
FREQUENCY (kHz)
PSRR (dB)
1010.1
-110
-100
-90
-80
-70
-60
-50
-40
-30
-20
-10
0
-120
0.01 100
Typical Operating Characteristics
(V
AVDD
= +1.8V, V
DVDD
= V
DVDDIO
= +1.8V, R
L
= ∞, headphone load (R
L
) connected between OUTP and OUTN, C
REF
= 2.2µF,
C
PREG
= C
REG
= 1µF, C
MICBIAS
= 1µF A
VMICPGA
= 0dB, A
VPRE
= +20dB, f
MCLK
= 13MHz, T
A
= +25°C, unless otherwise noted.)
MAX9860
16-Bit Mono Audio Voice Codec
9
Maxim Integrated