MAX13331 Maxim Integrated Products, MAX13331 Datasheet - Page 7

• Manufacturer Part Number: MAX13331
• Description: (MAX13330 / MAX13331) Automotive DirectDrive Headphone Amplifiers
• Manufacturer: Maxim Integrated Products

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(V
T
A
DD
= +25°C, unless otherwise noted.)
Automotive DirectDrive Headphone Amplifiers
= V
9, 15
PIN
2, 4
10
11
12
13
14
16
1
3
5
6
7
8
CPVDD
= 5V, V
_______________________________________________________________________________________
CPVDD
CPVSS
NAME
SGND
SHDN
PGND
OUTR
OUTL
DIAG
C1P
C1N
with Output Protection and Diagnostics
V
SGND
INR
V
INL
DD
SS
ENTERING SHUTDOWN TRANSIENT
= V
PGND
Inverting Left-Channel Audio Input
Amplifier Signal Ground. The noninverting inputs of the amplifiers are connected to the amplifier
signal ground. Connect both to the signal ground plane.
Inverting Right-Channel Audio Input
Amplifier Positive-Power Supply. Connect to positive supply. Bypass with a 1µF capacitor to
SGND as close to the pin as possible.
Active-Low Shutdown Input
Charge-Pump Power Supply. Powers charge-pump inverter, charge-pump logic, and oscillator.
Connect to positive supply. Bypass with a 1µF capacitor to PGND as close to the pin as possible.
Flying-Capacitor Positive Terminal. Connect a 1µF capacitor between C1P and C1N.
Power Ground. Connect both to the power ground plane.
Flying-Capacitor Negative Terminal. Connect a 1µF capacitor between C1P and C1N.
Charge-Pump Output. Connect to V
Diagnostic Voltage Output
Right-Channel Output
Amplifier Negative Power Supply. Connect to CPVSS.
Left-Channel Output
200μs/div
= 0, C1 = C2 = 1µF, R
Typical Operating Characteristics (continued)
MAX13330/31 toc27
SHDN
5V/div
OUTL
1V/div
OUTR
1V/div
L
= ∞, gain = -1.5V/V, THD+N measurement bandwidth = 22Hz to 22kHz,
SS
and bypass with a 1µF capacitor to PGND.
FUNCTION
POWER-UP/-DOWN TRANSIENT
10ms/div
MAX13330/31 toc28
Pin Description
SHDN
5V/div
OUTL
1V/div
OUTR
1V/div
7