MAX9765ETJ MAXIM [Maxim Integrated Products], MAX9765ETJ Datasheet - Page 12

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

100mV/div
500mV/div
750mW Audio Amplifiers with Headphone Amp,
Microphone Preamp, and Input Mux
(V
12
HP JACK
OUT_+
2V/div
0.001
DD
-100
-120
0.01
-20
-40
-60
-80
V
0.1
ENTERING POWER-DOWN (HEADPHONE MODE)
CC
0
1
TOTAL HARMONIC DISTORTION PLUS NOISE
______________________________________________________________________________________
= PV
10
10
vs. FREQUENCY (DIFFERENTIAL INPUT)
vs. FREQUENCY (DIFFERENTIAL INPUT)
R
INPUT AC-COUPLED TO GND
L
V
POWER-SUPPLY REJECTION RATIO
DD
= 16Ω
DD
V
= 3V
OUT
= 5V, BW = 22Hz to 22kHz, T
100
= 0.26V
100
FREQUENCY (Hz)
FREQUENCY (Hz)
RMS
V
200ms/div
DD
V
OUT
= 5V
1k
1k
V
DD
= 0.35V
= 3V
RMS
10k
10k
MAX9765 toc53
100k
100k
A
= +25°C, unless otherwise noted.)
500mV/div
100mV/div
HP JACK
Typical Operating Characteristics (continued)
OUT_+
2V/div
0.001
1000
0.01
V
100
100
0.1
CC
vs. OUTPUT AMPLITUDE (DIFFERENTIAL INPUT)
10
10
EXITING POWER-DOWN (HEADPHONE MODE)
1
TOTAL HARMONIC DISTORTION PLUS NOISE
(DIFFERENTIAL MICROPHONE AMPLIFIER)
10
0
R
INPUT AC-COUPLED TO GND
L
V
= 16Ω
DD
= 5V
A
f = 10kHz
V
INPUT-REFERRED NOISE
= 40dB
100
OUTPUT VOLTAGE (V
1
FREQUENCY (Hz)
A
200ms/div
V
= 20dB
1k
2
RMS
10k
f = 100Hz
)
f = 1kHz
MAX9765 toc54
100k
3
50mV/div
50mV/div
0.001
0.001
0.01
0.01
OUT
100
0.1
vs. OUTPUT AMPLITUDE (DIFFERENTIAL INPUT)
0.1
10
IN
1
1
TOTAL HARMONIC DISTORTION PLUS NOISE
TOTAL HARMONIC DISTORTION PLUS NOISE
DIFFERENTIAL MICROPHONE AMPLIFIER
10
0
vs. FREQUENCY (DIFFERENTIAL INPUT)
A
f
SMALL-SIGNAL TRANSIENT RESPONSE
IN
V
V
V
= 1kHz
DD
DD
= 4dB
= 5V
= 3V
V
OUT
100
OUTPUT VOLTAGE (V
= 0.26V
1
FREQUENCY (Hz)
200µs/div
RMS
f = 1kHz
V
1k
OUT
= 0.35V
f = 100Hz
2
RMS
10k
RMS
)
f = 10kHz
MAX9765 toc61
100k
3