max9724c Maxim Integrated Products, Inc., max9724c Datasheet - Page 7

• Manufacturer Part Number: max9724c
• Description: Low Rf Susceptibility Directdrive Stereo Head- Phone Amplifier With 1.8v Compatible Shutdown
• Manufacturer: Maxim Integrated Products, Inc.

(V
THD+N measurement bandwidth = 22Hz to 22kHz, both outputs driven in phase, T
phone Amplifier with 1.8V Compatible Shutdown
DD
Low RF Susceptibility DirectDrive Stereo Head-
= 5V, PGND = SGND = 0V, SHDN = V
-100
-120
-20
-40
-60
-80
80
70
60
50
40
30
20
10
0
0
OUTPUT POWER vs. LOAD RESISTANCE AND
10
CHARGE-PUMP CAPACITOR SIZE (UCSP)
0
_______________________________________________________________________________________
C1 = C2 = 2.2μF
P
R
OUT
L
= 16Ω
CROSSTALK vs. FREQUENCY
= 15mW
100
C1 = C2 = 1μF
LOAD RESISTANCE (Ω)
50
RIGHT TO LEFT
FREQUENCY (Hz)
C1 = C2 = 0.47μF
1k
100
LEFT TO RIGHT
DD
V
f
THD+N = 1%
IN
10k
DD
= 1kHz
, C1 = C2 = 1µF, R
= 5V
3.5
3.4
3.3
3.2
3.1
3.0
2.9
2.8
2.7
2.6
2.5
Typical Operating Characteristics (continued)
2.5
NO LOAD
INPUT GROUNDED
100k
150
3.0
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
3.5
L
4.0
= ∞, gain = -1.5V/V (R
4.5
-100
-110
-120
-130
-140
-40
-50
-60
-70
-80
-90
80
70
60
50
40
30
20
OUTPUT POWER vs. LOAD RESISTANCE AND
0
5.0
CHARGE-PUMP CAPACITOR SIZE (TQFN)
0
OUTPUT SPECTRUM vs. FREQUENCY
C1 = C2 = 2.2μF
A
5.5
= +25°C, unless otherwise noted.)
5
LOAD RESISTANCE (Ω)
FREQUENCY (kHz)
50
IN
= 20kΩ, R
C1 = C2 = 0.47μF
10
C1 = C2 = 1μF
100
R
V
f
V
IN
L
DD
OUT
= 32Ω
= 1kHz
V
f
THD+N = 1%
IN
15
= 3V
F
DD
= -60dBV
= 1kHz
= 30kΩ for the MAX9724C),
= 5V
20
150
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