Manual

Stereo Audio Codec
with FLEXSOUND Technology
MAX98088
19
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
LOAD
) connected from LOUTL and LOUTR to ground. 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 = 1. T
A
= +25NC, unless otherwise noted.) (Note 1)
DIGITAL INPUT/OUTPUT CHARACTERISTICS
(V
AVDD
= V
HPVDD
= 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
SDINS1, BCLKS1, LRCLKS1—INPUT
Input High Voltage V
IH
0.7 x
DVDDS1
V
Input Low Voltage V
IL
0.29 x
DVDDS1
V
Input Hysteresis 200 mV
Input Leakage Current I
IH
, I
IL
V
DVDDS1
= 3.6V, V
IN
= 0V, 3.6V; 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
SPKLVDD
]
2
I
Total Harmonic Distortion
+ Noise
THD+N
V
IN
= 2V
P-P
, V
CM
= V
SPKLVDD
/2, Z
L
= 8I + 68FH,
f = 1kHz, RECBYP = 1, R
S
= 0I
60 %
Off-Isolation
V
IN
= 2V
P-P
, V
CM
= V
SPKLVDD
/2, Z
L
= 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 Threshold
SHDN = 1, JACKSNS rising
0.92 x
V
MICBIAS
0.95 x
V
MICBIAS
0.98 x
V
MICBIAS
V
SHDN = 0, JKSNS
SPKLVDD - 0.7
JACKSNS Sense Voltage
SHDN = 0
SPKLVDD V
JACKSNS Sense Current V
JACKSNS
= 0V 4 10
FA
BATTERY ADC
Input Voltage Range 2.6 5.6 V
LSB Size 0.1 V