Datasheet

MAX9850
Stereo Audio DAC with DirectDrive
Headphone Amplifier
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(DV
DD
= AV
DD
= PV
DD
= 3.0V, AGND = DGND = PGND = 0V, C1 = 0.47µF, C2 = 2.2µF, C
NREG
= C
PREG
= C
REF
= 1µF to AGND,
R
LOAD_HP
= 32Ω to AGND, R
LOAD_OUT
= 10kΩ to AGND, f
LRCLK
= 48kHz, f
MCLK
= 12.288MHz, volume set to -9.5dB, T
A
= T
MIN
to
T
MAX
, unless otherwise noted. Typical specifications at T
A
= +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
Mute Attenuation
100
dB
DIGITAL INPUTS (GPIO, SCL, SDA, BCLK, LRCLK, SDIN, ADD, MCLK)
Input High Voltage V
IH
0.8 x
DV
DD
V
Input Low Voltage V
IL
0.2 x
DV
DD
V
Input Leakage Current I
IH
, I
IL
V
IH
= DV
DD
, V
IL
= DGND -10
+10
µA
Input Hysteresis
0.09 x
DV
DD
V
Input Capacitance C
IN
10 pF
OPEN-DRAIN DIGITAL OUTPUTS (GPIO, SDA)
Output-High Leakage Current I
OH
V
OH
= DV
DD
(Note 7) 1 µA
DV
DD
> 2V 0.4
Output Low Voltage V
OL
I
OL
= 3mA
DV
DD
< 2V
0.2 x
DV
DD
V
CMOS DIGITAL OUTPUTS (BCLK, LRCLK)
Output High Voltage V
OH
I
OH
= 1mA
DV
DD
-
0.4
V
Output Low Voltage V
OL
I
OL
= 1mA 0.4 V
HEADPHONE SENSE INPUT (HPS)
Input High Voltage V
IH
0.7 x
DV
DD
V
Input Low Voltage V
IL
0.25 x
DV
DD
V
Full shutdown, V
IH
= DV
DD
400
Input-High Leakage Current I
IH
Normal operation, V
IH
= DV
DD
1
µA
Full shutdown, V
IL
= DGND 1
Input-Low Leakage Current I
IL
Normal operation, V
IL
= DGND
100
µA
Input Hysteresis
0.05 x
DV
DD
V