MAX9715 Maxim Integrated Products, MAX9715 Datasheet - Page 3

• Manufacturer Part Number: MAX9715
• Description: Filterless Class D Audio Amplifier
• Manufacturer: Maxim Integrated Products

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ELECTRICAL CHARACTERISTICS (continued)
(V
OUT_+ and OUT_-, GAIN = +10.5dB, T
Note 1: All devices are 100% production tested at T
Note 2: Speaker amplifier gain is defined as A
Note 3: Click-and-pop level testing performed with an 8Ω resistive load in series with 68µH inductive load connected across the
Note 4: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For R
(V
Typical Operating Circuit/Functional Diagram)
Spread-Spectrum Modulation
Crosstalk
Click-and-Pop Level
Efficiency
DIGITAL INPUTS (GAIN and SHDN)
Input High Voltage
Input Low Voltage
Input Leakage Current
DD
0.001
DD
0.01
0.1
1
= PV
= 5.0V, C
10
Class D BTL outputs. Mode transitions are controlled by the SHDN pin. Inputs AC-coupled to GND.
For R
V
R
DD
DD
L
TOTAL HARMONIC DISTORTION
PARAMETER
= 4Ω
PLUS NOISE vs. FREQUENCY
= 5V
= 5.0V, GND = PGND = 0V, V
L
100
= 8Ω, L = 68µH.
VDD
FREQUENCY (Hz)
2.8W, Low-EMI, Stereo, Filterless Class D
= 3 x 0.1µF, C
_______________________________________________________________________________________
P
OUT
1k
P
OUT
= 0.35W
= 2W
10k
BIAS
SYMBOL
A
100k
I
= T
LEAK
K
V
V
= 1µF, C
CP
η
IH
IL
SHDN
MIN
V
0.001
to T
0.01
= V
0.1
= (V
Channel-to-channel, f = 10kHz, P
left to right or right to left
Peak voltage,
A-weighted,
32 samples per
second (Note 4)
R
per channel, f = 1kHz
SHDN
GAIN
1
INL
MAX
L
10
DD
A
= 8Ω in series with 68µH, P
OUT_+
= C
V
R
= +25°C. All temperature limits are guaranteed by design.
, C
, unless otherwise noted. Typical values are at T
DD
L
TOTAL HARMONIC DISTORTION
= 8Ω
PLUS NOISE vs. FREQUENCY
= 5V
BIAS
INR
100
- V
= 1µF, A
= 1µF, speaker impedance = 8Ω in series with 68µH connected between
OUT_-
FREQUENCY (Hz)
CONDITIONS
P
OUT
1k
) / V
P
OUT
= 1.25W
V
Into shutdown
Out of shutdown
Typical Operating Characteristics
IN
= 0.5W
= +10.5dB, T
.
10k
OUT
OUT
100k
= 1W
A
= 1W,
= +25°C, unless otherwise noted.) (See the
Audio Amplifier
0.001
0.01
100
0.1
10
1
MIN
0
2.0
A
PLUS NOISE vs. OUTPUT POWER
TOTAL HARMONIC DISTORTION
0.5
= +25°C.) (Notes 1, 2)
f
1.0
IN
±120
TYP
= 1kHz AND 20Hz
-64
-46
72
86
OUTPUT POWER (W)
1.5
2.0
L
MAX
±1.5
= 4Ω, L = 33µH.
0.8
±1
2.5
f
IN
3.0
= 10kHz
V
R
DD
L
UNITS
= 4Ω
3.5
dBV
kHz
= 5V
dB
µA
%
V
V
4.0
3