Ultra-Low Power Stereo Audio Codec
MAX9867
ELECTRICAL CHARACTERISTICS (continued)
(V
= V
REF
= V
= 2.2µF, C
= V
MICBIAS
= +1.8V, R = ∞, headphone load (R ) connected between _OUTP and _OUTN in differential
AVDD
PVDD
DVDD
DVDDIO
= C
L
L
mode, C
= C
= 1µF, AV
= +20dB, AV
= 0dB, AV
= 0dB, AV
= +20dB, AV
=
PREG
REG
PRE
PGAM
DAC
LINE
VOL
0dB, MCLK = 13MHz, T = T
to T
, unless otherwise noted. Typical values are at T = +25°C.) (Note 2)
MAX A
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ADC STEREO AUDIO MODE DIGITAL DC BLOCKING HIGHPASS FILTER
Passband Cutoff
(-3dB from Peak)
0.000625
x f
f
AVFLT = 0x1
AVFLT = 0x1
Hz
dB
AHPPB
S
DC Attenuation
DC
90
ATTEN
OUTPUT VOLUME CONTROL
VOLL/VOLR = 0x00
VOLL/VOLR = 0x01
VOLL/VOLR = 0x02
VOLL/VOLR = 0x04
VOLL/VOLR = 0x08
VOLL/VOLR = 0x10
VOLL/VOLR = 0x20
14.55
14.1
14.9
14.4
13.9
12.9
9.9
15.15
14.6
13.6
14.1
Line Input to Output Volume
Control
AV
12.6
13.1
dB
VOL
9.35
10.35
1.35
0.35
0.9
-50.15
-49.2
-48.15
VOLL/VOLR = 0x00 to 0x06 (+6dB to +3dB)
VOLL/VOLR = 0x06 to 0x0F (+3dB to -6dB)
VOLL/VOLR = 0x0F to 0x17 (-6dB to -22dB)
VOLL/VOLR = 0x17 to 0x3F (-22dB to mute)
0.5
1
Output Volume Control Step Size
dB
dB
2
4
Output Volume Control Mute
Attenuation
f = 1kHz
100
HEADPHONE AMPLIFIER (Note 8)
R = 16Ω
30
8
52
32
19
10
-76
L
Output Power per Channel
(Differential Mode)
f = 1kHz, THD <
1%, T = +25°C
A
P
P
mW
mW
OUT
OUT
R = 32Ω
L
R = 16Ω
L
Output Power per Channel
(Capacitorless Mode)
f = 1kHz, THD <
1%, T = +25°C
A
R = 32Ω
L
R = 16Ω, P
= 25mW, f = 1kHz
L
OUT
MCLK = 13MHz,
f = 8kHz
S
Total Harmonic Distortion + Noise
(Differential Mode)
-77
-70
-65
-65
THD+N
THD+N
dB
dB
R = 32Ω, P
25mW, f = 1kHz
=
L
OUT
MCLK = 12.288MHz,
f = 48kHz
S
-80
-72
-74
R = 16Ω, P
= 6.25mW, f = 1kHz
L
OUT
MCLK = 13MHz,
f = 8kHz
S
Total Harmonic Distortion + Noise
(Capacitorless Mode)
R = 32Ω, P
=
L
OUT
6.25mW, f = 1kHz
MCLK = 12.288MHz,
f = 48kHz
S
-74
-74
-74
R = 16Ω, P
= 6.25mW, f = 1kHz
L
OUT
MCLK = 13MHz,
f = 8kHz
S
Total Harmonic Distortion + Noise
(SE Mode)
THD+N
DR
dB
dB
R = 32Ω, P
=
L
OUT
6.25mW, f = 1kHz
MCLK = 12.288MHz,
f = 48kHz
S
-76
90
Dynamic Range
AV
= +6dB (Notes 5, 7)
76
VOL
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7