MAX9758 Maxim Integrated Products, MAX9758 Datasheet - Page 8

• Manufacturer Part Number: MAX9758
• Description: 2.3W Stereo Speaker Amplifiers and DirectDrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products

2.3W Stereo Speaker Amplifiers and DirectDrive
Headphone Amplifiers with Automatic Level Control
(V
1µF, C
22kHz, T
8
DD
0.001
-100
0.01
100
200
180
160
140
120
100
_______________________________________________________________________________________
-10
-20
-30
-40
-50
-60
-70
-80
-90
0.1
10
80
60
40
20
= PV
1
0
0
TOTAL HARMONIC DISTORTION PLUS NOISE
PVSS
vs. OUTPUT POWER (HEADPHONE MODE)
10
10
0
OUTPUT POWER vs. LOAD RESISTANCE
A
vs. FREQUENCY (HEADPHONE MODE)
HPV
R
V
INPUTS AC-GROUNDED
POWER-SUPPLY REJECTION RATIO
DD
L
= +25°C, unless otherwise noted.)
f
RIPPLE
IN
= 16Ω
= 1µF, C1 = C2 = 1µF, PREF = unconnected, GAIN1 = 1, GAIN2 = GAIN3 = VOL = 0V, measurement BW = 22Hz to
DD
= 100Hz
20
= HPV
= 3.3V
= 100mV
100
(HEADPHONE MODE)
LOAD RESISTANCE (Ω)
OUTPUT POWER (mW)
40
HPV
FREQUENCY (Hz)
THD+N = 10%
DD
P-P
HPV
f
IN
THD+N = 1%
DD
= 1kHz
100
DD
60
= 3.3V
1k
= CPV
= 5V
80
DD
f
IN
HPV
f = 1kHz
10k
= 10kHz
= IN = +5.0V, GND = PGND = CPGND = 0V, SHDN = V
DD
100
= 5V
1000
100k
120
0.001
-100
-110
0.01
100
-10
-20
-30
-40
-50
-60
-70
-80
-90
Typical Operating Characteristics (continued)
0.1
0.8
0.6
0.4
0.2
10
1
0
0
TOTAL HARMONIC DISTORTION PLUS NOISE
0.01
POWER DISSIPATION vs. OUTPUT POWER
vs. OUTPUT POWER (HEADPHONE MODE)
0
0
R
f = 1kHz
V
HPV
R
f = 1kHz
P
L
IN
L
25
10 20
OUT
= 32Ω
= 32Ω
= 200mV
CROSSTALK vs. FREQUENCY
f
DD
IN
= P
50
= 100Hz
= 3.3V
0.1
HL
(HEADPHONE MODE)
(HEADPHONE MODE)
OUTPUT POWER (mW)
OUTPUT POWER (mW)
75
30
+ P
P-P
RIGHT TO LEFT
FREQUENCY (Hz)
HR
100
f
IN
40 50 60
f
= 10kHz
IN
125
LEFT TO RIGHT
= 1kHz
1
R
L
R
150
= 32Ω
L
= 16Ω
175
70
10
200
80 90
225
100
100
250
DD
, REGEN = DR = SET = GND, C
140
130
120
110
100
150
140
130
120
110
100
140
120
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
80
60
40
20
0
0
3.0
10
10
OUTPUT POWER vs. LOAD RESISTANCE
OUTPUT POWER vs. SUPPLY VOLTAGE
C1 = C2 = 2.2μF
OUTPUT POWER vs. CHARGE-PUMP
CAPACITANCE (HEADPHONE MODE)
THD+N = 1%
15
3.5
20
(HEADPHONE MODE)
(HEADPHONE MODE)
LOAD RESISTANCE (Ω)
SUPPLY VOLTAGE (V)
C1 = C2 = 1μF
25
4.0
LOAD (Ω)
THD+N = 10%
100
30
THD+N = 1%
www.DataSheet4U.com
R
4.5
R
35
L
L
= 16Ω
= 32Ω
HPV
f = 1kHz
f = 1kHz
THD+N = 1%
40
DD
5.0
= 3.3V
45
BIAS
1000
5.5
50
=