max9723aebe Maxim Integrated Products, Inc., max9723aebe Datasheet - Page 8

• Manufacturer Part Number: max9723aebe
• Description: Max9723 Stereo Directdrive Headphone Amplifier With Bassmax, Volume Control, And I?c
• Manufacturer: Maxim Integrated Products, Inc.

Stereo DirectDrive Headphone Amplifier
with BassMax, Volume Control, and I
8
(V
nected between OUT_ and SGND where specified. Outputs in phase, both channels loaded. T
(See Functional Diagram/Typical Operating Circuit)
DD
_______________________________________________________________________________________
= SHDN = 3V, PGND = SGND = 0V, C1 = C2 = 1µF, BB_ = 0V, gain = 0dB, maximum volume, BassMax disabled. Load con-
75
70
65
60
55
50
45
40
35
4.5
4.0
3.5
3.0
2.5
2.0
10
1.8
CAPACITANCE AND LOAD RESISTANCE
OUTPUT POWER vs. CHARGE-PUMP
C1 = C2 = 2.2µF
NO LOAD
INPUTS GROUNDED
2.0
C1 = C2 = 0.68µF
2.2
20
vs. SUPPLY VOLTAGE
EXITING SHUTDOWN
LOAD RESISTANCE (Ω)
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
2.4
C1 = C2 = 1µF
40µs/div
2.6
30
2.8
3.0
V
f
THD+N = 1%
IN
DD
40
= 1kHz
3.2
= 3V
MAX9723 toc24
Typical Operating Characteristics (continued)
3.4
50
3.6
V
2V/div
V
200mV/div
SHDN
OUT_
8
7
6
5
4
3
2
1
0
1.8
NO LOAD
INPUTS GROUNDED
2.0
POWER-UP/POWER-DOWN
2.2
ENTERING SHUTDOWN
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
2.4
WAVEFORM
20ms/div
2.6
20µs/div
2.8
A
= +25°C, unless otherwise noted.)
3.0
3.2
2
MAX9723 toc23
MAX9723 toc25
3.4
C
3.6
V
10mV/div
V
2V/div
V
200mV/div
V
2V/div
DD
OUT
OUT_
SHDN