max9727eept Maxim Integrated Products, Inc., max9727eept Datasheet - Page 7

• Manufacturer Part Number: max9727eept
• Description: Max9727 Quad Audio Line Driver With 3vrms Output
• Manufacturer: Maxim Integrated Products, Inc.

(V
noted.)
DD
-100
-110
-120
-130
-140
-150
-40
-50
-60
-70
-80
-90
PIN
10
11
12
13
14
15
16
17
18
19
20
= PV
1
2
3
4
5
6
7
8
9
0
DD
OUTPUT NOISE SPECTRUM
Quad Audio Line Driver with 3V
= 3.3V, V
5
vs. FREQUENCY
FREQUENCY (kHz)
NAME
PGND
OUTA
OUTB
SHDN
OUTC
OUTD
PV
INA+
INB+
PV
INC+
IND+
INA-
INB-
C1N
INC-
IND-
V
C1P
V
DD
SS
_______________________________________________________________________________________
DD
SS
CM
10
= 0V, R
Output A
Inverting Input A
Noninverting Input A
Analog Positive Supply. Bypass with a 0.1µF capacitor to PGND.
Noninverting Input B
Inverting Input B
Output B
Active-Low Shutdown Input. Connect SHDN to V
Charge-Pump Positive Supply. Bypass with a 1µF capacitor to PGND.
Charge-Pump Flying Capacitor Positive Terminal. Connect a 1µF capacitor between C1P and C1N.
Power Ground
Charge-Pump Flying Capacitor Negative Terminal. Connect a 1µF capacitor between C1P and C1N.
Charge-Pump Negative Supply. Bypass with a 1µF capacitor to PGND.
Output C
Inverting Input C
Noninverting Input C
Amplifier Negative Rail. Connect to PV
Noninverting Input D
Inverting Input D
Output D
15
V
V
DD
IN
IN
= 0V
= 5V
= R
20
F
= 5kΩ, THD+N measurement bandwidth = 22Hz to 22kHz, T
Typical Operating Characteristics (continued)
25
20
15
10
5
0
0
V
R
DD
L
= 1kΩ
= 3.3V
OUTPUT NOISE DENSITY
5
vs. FREQUENCY
FREQUENCY (kHz)
10
SS
.
FUNCTION
15
DD
for normal operation.
20
SIGNAL
SOURCE
2V/div
OUT_
2V/div
V
100mV/div
SS
OUTPUT BACKDRIVEN DURING SHUTDOWN
RMS
A
= +25°C, unless otherwise
Pin Description
SHDN = 0V
EXTERNAL SIGNAL SOURCE
CONNECTED TO OUTPUT
R
SOURCE
1ms/div
Output
= 100Ω
7