Rainbow Electronics MAX9768 - Manual (Page 5)

MAX9768
10W Mono Class D Speaker
Amplifier with Volume Control
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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