MAX9765ETJ MAXIM [Maxim Integrated Products], MAX9765ETJ Datasheet - Page 13

• Manufacturer Part Number: MAX9765ETJ
• Description: 750mW Audio Amplifiers with Headphone Amp, Microphone Preamp, and Input Mux
• Manufacturer: MAXIM [Maxim Integrated Products]

500mV/div
(V
1V/div
0.001
OUT
0.01
DD
0.1
IN
1
TOTAL HARMONIC DISTORTION PLUS NOISE
= PV
DIFFERENTIAL MICROPHONE AMPLIFIER
10
vs. FREQUENCY (SINGLE-ENDED INPUT)
A
f
LARGE-SIGNAL TRANSIENT RESPONSE
IN
V
V
= 4dB
= 1kHz
DD
V
OUT
750mW Audio Amplifiers with Headphone Amp,
DD
= 3V
= 176mV
100
= 5V, BW = 22Hz to 22kHz, T
FREQUENCY (Hz)
RMS
-100
-120
200µs/div
-20
-40
-60
-80
V
______________________________________________________________________________________
0
OUT
1k
10
vs. FREQUENCY (SINGLE-ENDED INPUT)
= 265mV
POWER-SUPPLY REJECTION RATIO
10k
100
RMS
MAX9765 toc62
FREQUENCY (Hz)
V
DD
100k
V
1k
= 5V
DD
Microphone Preamp, and Input Mux
= 3V
A
1V/div
1V/div
= +25°C, unless otherwise noted.)
0.001
OUT
0.01
100
vs. OUTPUT AMPLITUDE (SINGLE-ENDED INPUT)
0.1
10
10k
IN
1
TOTAL HARMONIC DISTORTION PLUS NOISE
Typical Operating Characteristics (continued)
DIFFERENTIAL MICROPHONE AMPLIFIER
0
A
f
IN
V
V
DD
= 4dB
= 1kHz
= 5V
f = 10kHz
100k
OVERDRIVEN OUTPUT
0.5
OUTPUT VOLTAGE (V
200µs/div
1.0
f = 100Hz
RMS
1.5
)
f = 1kHz
MAX9765 toc63
600
500
400
300
200
100
0
2.0
10
A
V
= 40dB
MICROPHONE AMPLIFIER)
INPUT-REFERRED NOISE
(SINGLE-ENDED INPUT
100
0.001
0.001
0.01
0.01
100
vs. OUTPUT AMPLITUDE (SINGLE-ENDED INPUT)
0.1
0.1
10
1
1
FREQUENCY (Hz)
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
10
0
vs. FREQUENCY (SINGLE-ENDED INPUT)
V
V
DD
DD
1k
V
= 3V
= 5V
OUT
f = 1kHz
100
0.5
= 176mV
OUTPUT VOLTAGE (V
10k
FREQUENCY (Hz)
RMS
V
OUT
1.0
1k
= 265mV
100k
f = 100Hz
RMS
f = 10kHz
RMS
1.5
10k
)
100k
2.0
13