User Manual

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MAX98089
Low-Power, Stereo Audio Codec
with FlexSound Technology
ELECTRICAL CHARACTERISTICS (continued)
(V
AVDD
= V
PVDD
= V
DVDD
= V
DVDDS1
= V
DVDDS2
= 1.8V, V
SPKLVDD
= V
SPKRVDD
= 3.7V. Speaker loads (Z
SPK
) connected between
SPK_P and SPK_N. Receiver load (R
REC
) connected between RECP and RECN. Headphone loads (R
HP
) connected from HPL or HPR
to HPGND. Line out loads (R
LOUT
) connected from LOUTL or LOUTR to SPKLGND. R
LOAD
= R
HP
= J, R
REC
= J, Z
SPK
= J, C
REF
=
2.2FF, C
MICBIAS
= C
REG
= 1FF, C
C1N-C1P
= 1FF, C
HPVDD
= C
HPVSS
= 1FF. AV
MICPRE_
= +20dB, AV
MICPGA_
= 0dB, AV
DACATTN
=
0dB, AV
DACGAIN
= 0dB, AV
ADCLVL
= 0dB, AV
ADCGAIN
= 0dB, AV
PGAIN_
= 0dB, AV
HP_
= 0dB, AV
REC
= 0dB, AV
SPK_
= 0dB, MCLK
= 12.288MHz, LRCLK = 48kHz, MAS = 0. T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 1)
DIGITAL INPUT/OUTPUT CHARACTERISTICS
(V
AVDD
= V
PVDD
= V
DVDD
= V
DVDDS1
= V
DVDDS2
= 1.8V, V
SPKLVDD
= V
SPKRVDD
= 3.7V, T
A
= +25NC, unless otherwise noted.)
(Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
MCLK
Input High Voltage V
IH
1.2 V
Input Low Voltage V
IL
0.6 V
Input Leakage Current I
IH
, I
IL
V
DVDD
= 2.0V, V
IN
= 0V, 5.5V; T
A
= +25°C
-1 +1
FA
Input Capacitance 10 pF
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
RECEIVER BYPASS SWITCH
On-Resistance R
ON
I
RECP
= 100mA, RECBYP = 1, V
RECN
= [0V, V
SPKL-
VDD
]
2
I
Total Harmonic Distortion +
Noise
THD+N
V
IN
= 2V
P-P
, V
CM
= V
SPKLVDD
/2, Z
SPK
= 8I +
68FH, f = 1kHz, RECBYP = 1, R
S
= 0I
60 %
Off-Isolation
V
IN
= 2V
P-P
, V
CM
= V
SPKLVDD
/2, Z
SPK
= 8I +
68FH, f = 1kHz
84 dB
Off-Leakage Current
V
RECP
= [0V, V
SPKLVDD
], V
RECN
=
[V
SPKLVDD
, 0V]
-15 +15
FA
JACK DETECTION
JACKSNS High Threshold V
TH1
MICBIAS enabled
0.92 x
V
MICBIAS
0.95 x
V
MICBIAS
0.98 x
V
MICBIAS
V
MICBIAS disabled
0.92 x
V
SPKLVDD
0.95 x
V
SPKLVDD
0.98 x
V
SPKLVD D
JACKSNS Low Threshold V
TH2
MICBIAS enabled
0.06 x
V
MICBIAS
0.10 x
V
MICBIAS
0.17 x
V
MICBIAS
V
MICBIAS disabled
0.06 x
V
SPKLVDD
0.10 x
V
SPKLVDD
0.17 x
V
SPKLVD D
JACKSNS Sense Voltage MICBIAS disabled, JDWK = 1 3.65 3.7
JACKSNS Sense Resistance R
SENSE
MICBIAS disabled, JDWK = 0 1.6 2.4 2.9
kI
JACKSNS Weak Pullup Current I
WPU
MICBIAS disabled, JDWK = 1 2 5 9.5
FA
JACKSNS Deglitch Period t
GLITCH
JDEB = 00 25
ms
JDEB = 11 200
BATTERY ADC
Input Voltage Range 2.6 5.6 V
LSB Size 0.1 V