MAX9768 Maxim Integrated Products, MAX9768 Datasheet - Page 6

• Manufacturer Part Number: MAX9768
• Description: 10W Mono Class D Speaker Amplifier
• Manufacturer: Maxim Integrated Products

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10W Mono Class D Speaker
Amplifier with Volume Control
ELECTRICAL CHARACTERISTICS (continued)
(PV
between OUT+ and OUT-, R
SSM mode. Filterless modulation mode (see the Functional Diagram/Typical Application Circuit ). T
noted. Typical values are at T
(PV
OUT+ and OUT-, R
spread-spectrum modulation mode.)
6
Note 1: All devices are 100% production tested at T
Note 2: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For R
Note 3: Device muted by either asserting MUTE or minimum V
Note 4: C
Fall Time of SDA,
Transmitting
Pulse Width of Spike
Suppressed
Capacitive Load for Each
Bus Line
DD
0.01
DD
_______________________________________________________________________________________
0.1
10
1
= 12V, V
= 12V, V
10
PARAMETER
PV
R
FILTERLESS MODULATION
L
b
DD
= 8Ω
TOTAL HARMONIC DISTORTION
OUTPUT POWER = 6W
= total capacitance of one bus line in pF.
PLUS NOISE vs. FREQUENCY
= 12V
100
DD
DD
OUTPUT POWER = 2W
FREQUENCY (Hz)
= 3.3V, GND = PGND = 0V, V
= 3.3V = GND = PGND = 0V, V
L
= 8Ω, unless otherwise noted. C
1k
L
A
= ∞, unless otherwise noted. C
= +25°C.) (Note 1)
10k
SYMBOL
t
C
t
SP
F
b
100k
(Note 4)
0.01
0.1
10
1
SHDN
A
10
MUTE
= +25°C. All temperature limits are guaranteed by design.
PV
R
PWM MODE
L
BIAS
DD
= 8Ω
OUTPUT POWER = 5W
TOTAL HARMONIC DISTORTION
= V
PLUS NOISE vs. FREQUENCY
= 12V
= 0V; 0dB volume setting; all speaker load resistors connected between
100
DD
= 2.2µF, C1 = C2 = 0.1µF, C
OUTPUT POWER = 2W
BIAS
CONDITIONS
OL
, V
FREQUENCY (Hz)
setting.
MUTE
= 2.2µF, C1 = C2 = 0.1µF, C
1k
Typical Operating Characteristics
= 0V; Max volume setting; speaker load resistor connected
10k
100k
IN
0.001
0.01
= 0.47µF, R
0.1
10
0.1Cb
IN
1
20 +
MIN
10
A
0
= 0.47µF, R
PV
R
FILTERLESS MODULATION
= T
L
OUTPUT POWER = 300mW
DD
= 8Ω
TOTAL HARMONIC DISTORTION
OUTPUT POWER = 1W
PLUS NOISE vs. FREQUENCY
MIN
= 5V
TYP
100
IN
to T
FREQUENCY (Hz)
= 20kΩ, R
IN
MAX
= 20kΩ, R
L
1k
MAX
, unless otherwise
250
400
50
= 8Ω, L = 68µH.
FB
10k
F
UNITS
= 30kΩ,
= 30kΩ,
pF
ns
ns
100k