Datasheet

MAX9880A
Low-Power, High-Performance
Dual I
2
S Stereo Audio Codec
_______________________________________________________________________________________ 9
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
PVDD
= V
MICVDD
= V
DVDD
= V
DVDDS1
= +1.8V, R
L
= ∞, headphone load (R
L
) connected between _OUTP and _OUTN, dif-
ferential modes, C
REF
= 2.2µF, C
MICBIAS
= C
PREG
= C
REG
= 1µF, AV
PRE
= +20dB, AV
PGAM
= 0dB, AV
DAC
= 0dB, AV
LINE
= +20dB,
AV
VOL
= 0dB, AV
LO
= 0dB, f
MCLK
= 13MHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Line Input Mute
Attenuation
f = 1kHz 100 dB
Input Resistance R
IN_LINE
AV
LINE
= +24dB 20 k
Total Harmonic
Distortion + Noise
THD+N V
IN
= 0.1V
P-P
, f = 1kHz -74 dB
AUXIN INPUT
Input DC Voltage Range AUXEN = 1 0 0.738 V
AUXIN Input Resistance R
IN
AUXEN = 1, 0V  V
AUXIN
 0.738V
10 40 M
JACK DETECT
SHDN = 1
0.92 x
V
MICBIAS
0.95 x
V
MICBIAS
0.98 x
V
MICBIAS
JACKSNS High
Threshold
V
TH1
SHDN = 0
0.95 x
V
MICVDD
D
V
SHDN = 1
0.06 x
V
MICBIAS
0.10 x
V
MICBIAS
0.17 x
V
MICBIAS
JACKSNS Low
Threshold
V
TH2
SHDN = 0
0.08 x
V
MICVDD
V
JACKSNS Sense
Voltage
V
SENSE
SHDN = 0 V
MICVDD
V
JACKSNS Sense
Resistance
R
SENSE
SHDN = 0 1.9 2.3 3.1 k
JACKSNS Deglitch
Period
t
GLITCH
12 300 ms
Headphone Sense
Threshold
8 
1-BIT SPDM OUTPUT
Dynamic Range
(Note 5)
DR
f
S
= 48kHz, A-weighted, 20Hz to 20kHz,
AV
VOL
= 0dB; master or slave mode, T
A
= +25°C
90 dB
Output Operational
Range
0dB signal 1’s density 25 75 %
DIGITAL SIDETONE (MODE = 1 IIR Voice Mode Only)
Sidetone Gain Adjust
Range
AV
STGA
Differential output mode -60 0 dB
f
S
= 8kHz 2.2
Voice Path Phase Delay P
DLY
MIC input to headphone
output, f = 1kHz, HP filter
disabled
f
S
= 16kHz 1.1
ms