max9724c Maxim Integrated Products, Inc., max9724c Datasheet - Page 8

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

Low RF Susceptibility DirectDrive Stereo Head-
phone Amplifier with 1.8V Compatible Shutdown
(V
THD+N measurement bandwidth = 22Hz to 22kHz, both outputs driven in phase, T
8
TQFN
DD
EP
10
11
12
_______________________________________________________________________________________
1
2
3
4
5
6
7
8
9
= 5V, PGND = SGND = 0V, SHDN = V
PIN
500mV/div
UCSP
C1
C2
C3
C4
A2
B3
A1
B2
B4
A3
A4
B1
—
V
5V/div
1V/div
V
SHDN
OUT_
V
IN_
NAME
PGND
SHDN
SGND
OUTR
OUTL
PVSS
SVSS
C1N
C1P
V
INL
INR
EP
DD
EXITING SHUTDOWN
Flying Capacitor Positive Terminal. Connect a 1µF ceramic capacitor from C1P to C1N.
Power Ground. Connect to SGND.
Flying Capacitor Negative Terminal. Connect a 1µF ceramic capacitor from C1P to C1N.
Charge-Pump Output. Connect to SVSS and bypass with a 1µF ceramic capacitor to PGND.
Active-Low Shutdown Input
Left-Channel Input
Signal Ground. Connect to PGND.
Right-Channel Input
Amplifier Negative Supply. Connect to PVSS.
Right-Channel Output
Left-Channel Output
Positive Power-Supply Input. Bypass with a 1µF capacitor to PGND.
Exposed Pad. Internally connected to SVSS. Connect to SVSS or leave unconnected.
40
μ
s/div
DD
, C1 = C2 = 1µF, R
Typical Operating Characteristics (continued)
L
= ∞, gain = -1.5V/V (R
500mV/div
V
5V/div
1V/div
V
FUNCTION
SHDN
OUT_
V
IN_
A
= +25°C, unless otherwise noted.)
IN
= 20kΩ, R
ENTERING SHUTDOWN
20
μ
s/div
F
= 30kΩ for the MAX9724C),
Pin Description