MAX9867(2009) View Datasheet(PDF) - Maxim Integrated
Part Name
Description
Manufacturer
MAX9867 Datasheet PDF : 54 Pages
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Ultra-Low Power Stereo Audio Codec
ELECTRICAL CHARACTERISTICS (continued)
(VAVDD = VPVDD = VDVDD = VDVDDIO = +1.8V, RL = ∞, headphone load (RL) connected between _OUTP and _OUTN in differential
mode, CREF = 2.2μF, CMICBIAS = CPREG = CREG = 1μF, AVPRE = +20dB, AVPGAM = 0dB, AVDAC = 0dB, AVLINE = +20dB, AVVOL =
0dB, MCLK = 13MHz, TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
ADC STEREO AUDIO MODE DIGITAL DC BLOCKING HIGHPASS FILTER
Passband Cutoff
(-3dB from Peak)
fAHPPB AVFLT = 0x1
DC Attenuation
OUTPUT VOLUME CONTROL
DCATTEN AVFLT = 0x1
VOLL/VOLR = 0x00
VOLL/VOLR = 0x01
Line Input to Output Volume
Control
AVVOL
VOLL/VOLR = 0x02
VOLL/VOLR = 0x04
VOLL/VOLR = 0x08
VOLL/VOLR = 0x10
VOLL/VOLR = 0x20
VOLL/VOLR = 0x00 to 0x06 (+6dB to +3dB)
MIN TYP MAX
0.000625
x fS
90
14.55
14.1
13.6
12.6
9.35
0.35
-50.15
14.9
14.4
13.9
12.9
9.9
0.9
-49.2
0.5
15.15
14.6
14.1
13.1
10.35
1.35
-48.15
UNITS
Hz
dB
dB
VOLL/VOLR = 0x06 to 0x0F (+3dB to -6dB)
1
Output Volume Control Step Size
dB
VOLL/VOLR = 0x0F to 0x17 (-6dB to -22dB)
2
VOLL/VOLR = 0x17 to 0x3F (-22dB to mute)
4
Output Volume Control Mute
Attenuation
f = 1kHz
100
dB
HEADPHONE AMPLIFIER (Note 8)
Output Power per Channel
(Differential Mode)
POUT
f = 1kHz, THD <
1%, TA = +25°C
RL = 16Ω
RL = 32Ω
30
52
mW
32
Output Power per Channel
(Capacitorless Mode)
POUT
f = 1kHz, THD <
1%, TA = +25°C
RL = 16Ω
RL = 32Ω
19
mW
8
10
RL = 16Ω, POUT = 25mW, f = 1kHz
-76
Total Harmonic Distortion + Noise
(Differential Mode)
THD+N
RL = 32Ω, POUT =
25mW, f = 1kHz
MCLK = 13MHz,
fS = 8kHz
MCLK = 12.288MHz,
fS = 48kHz
-77
-70
dB
-80
RL = 16Ω, POUT = 6.25mW, f = 1kHz
-72
Total Harmonic Distortion + Noise
(Capacitorless Mode)
THD+N
RL = 32Ω, POUT =
6.25mW, f = 1kHz
MCLK = 13MHz,
fS = 8kHz
MCLK = 12.288MHz,
fS = 48kHz
-74
-65
dB
-74
RL = 16Ω, POUT = 6.25mW, f = 1kHz
-74
Total Harmonic Distortion + Noise
(SE Mode)
THD+N
RL = 32Ω, POUT =
6.25mW, f = 1kHz
MCLK = 13MHz,
fS = 8kHz
MCLK = 12.288MHz,
fS = 48kHz
-74
-65
dB
-76
Dynamic Range
DR
AVVOL = +6dB (Notes 5, 7)
76
90
dB
_______________________________________________________________________________________ 7
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