Rainbow Electronics MAX9860 - Manual (Page 9)

MAX9860
16-Bit Mono Audio Voice Codec
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TOTAL HARMONIC DISTORTION + NOISE
vs. OUTPUT POWER (DAC TO HP)
MAX9860 toc01
OUTPUT POWER (mW)
THD+N (%)
25 20 15 10 5
0.01
0.1
1
10
0.001
0 30
R L = 32 Ω
f = 3.5kHz
f = 1kHz
f = 20kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. OUTPUT POWER (DAC TO HP)
MAX9860 toc02
OUTPUT POWER (mW)
THD+N (%)
50 40 30 20 10
0.01
0.1
1
10
0.001
0 60
R L = 16 Ω
f = 3.5kHz
f = 1kHz
f = 20kHz
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HP)
MAX9860 toc03
FREQUENCY (kHz)
THD+N (%)
1 0.1
0.01
0.1
1
10
0.001
0.01 10
R L = 32 Ω
P OUT = 5mW
P OUT = 20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (DAC TO HP)
MAX9860 toc04
FREQUENCY (kHz)
THD+N (%)
1 0.1
0.01
0.1
1
10
0.001
0.01 10
R L = 16 Ω
P
OUT
= 5mW
P OUT = 20mW
TOTAL HARMONIC DISTORTION + NOISE
vs. FREQUENCY (MICL TO ADC)
MAX9860 toc05
FREQUENCY (kHz)
THD+N (%)
10 1 0.1
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 (%)
10 1 0.1
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 (%)
10 1 0.1
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)
125 100 75 50 25
10
20
30
40
50
60
0
0 150
POWER-SUPPLY REJECTION RATIO
vs. FREQUENCY (DAC TO HP)
MAX9860 toc09
FREQUENCY (kHz)
PSRR (dB)
10 1 0.1
-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, MCLK = 13MHz, T A = +25°C, unless otherwise noted.)