Electrical characteristics (continued) – Rainbow Electronics MAX9768 User Manual
Page 5
MAX9768
10W Mono Class D Speaker
Amplifier with Volume Control
_______________________________________________________________________________________
5
ELECTRICAL CHARACTERISTICS (continued)
(PV
DD
= 12V, V
DD
= 3.3V, GND = PGND = 0V, V
SHDN
= V
DD
, V
MUTE
= 0V; Max volume setting; speaker load resistor connected
between OUT+ and OUT-, R
L
=
∞, unless otherwise noted. C
BIAS
= 2.2µF, C1 = C2 = 0.1µF, C
IN
= 0.47µF, R
IN
= 20k
Ω, R
F
= 30kΩ,
SSM mode. Filterless modulation mode (see the
Functional Diagram/Typical Application Circuit). T
A
= T
MIN
to T
MAX
, unless otherwise
noted. Typical values are at T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
THERMAL PROTECTION
Thermal Shutdown
Threshold
150
°C
Thermal Shutdown
Hysteresis
15
°C
DIGITAL INPUTS (SCLK, SDA/VOL)
Input-Voltage High
V
IH
0.7 x V
DD
V
Input-Voltage Low
V
IL
0.3 x V
DD
V
Input High Leakage Current
I
IH
V
IN
= V
DD
±1
µA
Input Low Leakage Current
I
IL
V
IN
= GND
±1
µA
Input Hysteresis
0.1 x V
DD
V
Input Capacitance
C
IN
5
pF
DIGITAL OUTPUTS (SDA/VOL)
Output High Current
I
OH
V
OH
= V
DD
1
µA
Output Low Voltage
V
OL
I
OL
= 3mA
0.4
V
I
2
C TIMING CHARACTERISTICS (Figure 3)
Serial Clock
f
SCL
400
kHz
Bus Free Time Between a
STOP and START
Condition
t
BUF
1.3
µs
Hold Time (Repeated)
START Condition
t
HD,STA
0.6
µs
Repeated START Condition
Setup Time
t
SU,STA
0.6
µs
STOP Condition Setup Time
t
SU,STO
0.6
µs
Data Hold Time
t
HD,DAT
0
0.9
µs
Data Setup Time
t
SU,DAT
100
ns
SCL Clock Low Period
t
LOW
1.3
µs
SCL Clock High Period
t
HIGH
0.6
µs
Rise Time of SDA and SCL,
Receiving
t
R
(Note 4)
20 +
0.1Cb
300
ns
Fall Time of SDA and SCL,
Receiving
t
F
(Note 4)
20 +
0.1Cb
300
ns