Maxim MAX9777 Manual page 4

Stereo 3W Audio Power Amplifiers with
Headphone Drive and Input Mux
ELECTRICAL CHARACTERISTICS (continued)
(V = PV = 5.0V, GND = PGND = 0V, V
DD DD
noted. Typical values are at T
PARAMETER
2-WIRE SERIAL INTERFACE (SCL, SDA, ADD, INT) (MAX9777)
Input-Voltage High
Input-Voltage Low
Input Hysteresis
Input High Leakage Current
Input Low Leakage Current
Input Capacitance
Output-Voltage Low
Output Current High
TIMING CHARACTERISTICS (MAX9777)
Serial Clock Frequency
Bus Free Time Between STOP
and START Conditions
START Condition Hold Time
START Condition Setup Time
Clock Period Low
Clock Period High
Data Setup Time
Data Hold Time
Receive SCL/SDA Rise Time
Receive SCL/SDA Fall Time
Transmit SDA Fall Time
Pulse Width of Suppressed
Spike
Note 1: All devices are 100% production tested at +25°C. All temperature limits are guaranteed by design.
Note 2: Inputs AC-coupled to GND.
Note 3: A master device must provide a hold time of at least 300ns for the SDA signal to bridge the undefined region of SCL's
falling edge.
Note 4: C = total capacitance of one of the bus lines in picofarads. Device tested with C
B
from SDA/SCL to V
DD
Note 5: Input filters on SDA, SCL, and ADD suppress noise spikes of less than 50ns.
Note 6: Headphone mode testing performed with 32Ω resistive load connected to GND. Speaker mode testing performed with 8Ω
resistive load connected to GND. Mode transitions are controlled by SHDN. KCP level is calculated as 20log[(peak voltage
during mode transition, no input signal)/1V
4 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
SHDN = 5V, C
= +25°C.) (Note 1)
A
SYMBOL
V
IH
V
IL
I V = 5V
IH IN
I V = 0V
IL IN
C
IN
V I = 3mA
OL OL
I V = 5V
OH OH
f
SCL
t
BUF
t
HD:STA
t
SU:STA
t
LOW
t
HIGH
t
SU:DAT
t (Note 3)
HD:DAT
t (Note 4)
r
t (Note 4)
f
t (Note 4)
f
t (Note 5)
SP
.
]. Units are expressed in dBV.
RMS
= 1µF, R = R = 15kΩ, R
BIAS IN F
CONDITIONS
= ∞. T = T to T , unless otherwise
L A MIN MAX
MIN TYP MAX
2.6
0.8
0.2
±1
±1
10
0.4
400
1.3
0.6
0.6
1.3
0.6
100
0 0.9
20 +
300
0.1C
B
20 +
300
0.1C
B
20 +
250
0.1C
B
50
= 400pF. 1kΩ pullup resistors connected
B
UNITS
V
V
V
µA
µA
pF
V
1 µA
kHz
µs
µs
µs
µs
µs
ns
µs
ns
ns
ns
ns