Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX98314 User Manual
Page 5
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MAX98314
Mono 3.2W Class D Amplifier
with Integrated Input Coupling Capacitors
ELECTRICAL CHARACTERISTICS (continued)
(V
PVDD
= V
SHDN
= V
GAIN
= 5V, V
PGND
= 0V, A
V
= 6dB (GAIN = PVDD), R
L
= J, R
L
connected between OUT+ to OUT-, AC measure-
ment bandwidth 20Hz to 22kHz, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25NC.) (Note 2, 3)
Note 2: All devices are 100% production tested at T
A
= +25NC. Specifications over temperature limits are guaranteed by design.
Note 3: Testing performed with a resistive load in series with an inductor to simulate an actual speaker load. For R
L
= 4I,
L = 33FH. For R
L
= 8I, L = 68FH.
Note 4: Amplifier inputs AC-coupled to ground.
Note 5: Mode transitions controlled by SHDN control pin.
Typical Operating Characteristics
(V
PVDD
= V
SHDN
= 5.0V, V
PGND
= 0V, A
V
= 6dB, R
L
= J, R
L
connected between OUT+ to OUT-, AC measurement bandwidth 20Hz
to 22kHz, T
A
= +25NC, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Thermal Hysteresis
15
N
C
DIGITAL INPUT (SHDN)
Input Voltage High
V
INH
V
PVDD
= 2.5V to 5.5V
1.4
V
Input Voltage Low
V
INL
V
PVDD
= 2.5V to 5.5V
0.4
V
Input Leakage Current
T
A
= +25NC
Q
1
F
A
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX98314 toc01
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
V
PVDD
= 5V
Z
LOAD
= 4I + 33µH
P
OUT
= 2W
P
OUT
= 1.5W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX98314 toc02
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
V
PVDD
= 4.2V
Z
LOAD
= 4I + 33µH
P
OUT
= 1W
P
OUT
= 0.5W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX98314 toc03
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
V
PVDD
= 3.7V
Z
LOAD
= 4I + 33µH
P
OUT
= 0.8W
P
OUT
= 0.2W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX98314 toc04
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
V
PVDD
= 5V
Z
LOAD
= 8I + 68µH
P
OUT
= 1.2W
P
OUT
= 0.2W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX98314 toc05
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
V
PVDD
= 4.2V
Z
LOAD
= 8I + 68µH
P
OUT
= 0.6W
P
OUT
= 0.3W
TOTAL HARMONIC DISTORTION PLUS
NOISE vs. FREQUENCY
MAX98314 toc06
FREQUENCY (Hz)
THD+N (%)
10k
1k
100
0.01
0.1
1
10
0.001
10
100k
V
PVDD
= 3.7V
Z
LOAD
= 8I + 68µH
P
OUT
= 0.2W
P
OUT
= 0.4W