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| MAX13330_09 Datasheet, PDF (7/15 Pages) Maxim Integrated Products – Automotive DirectDrive Headphone Amplifiers with Output Protection and Diagnostics | |||
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Automotive DirectDrive Headphone Amplifiers
with Output Protection and Diagnostics
Typical Operating Characteristics (continued)
(VDD = VCPVDD = 5V, VSGND = VPGND = 0, C1 = C2 = 1µF, RL = â, gain = -1.5V/V, THD+N measurement bandwidth = 22Hz to 22kHz,
TA = +25°C, unless otherwise noted.)
ENTERING SHUTDOWN TRANSIENT
MAX13330/31 toc27
SHDN
5V/div
OUTL
1V/div
OUTR
1V/div
POWER-UP/-DOWN TRANSIENT
MAX13330/31 toc28
SHDN
5V/div
OUTL
1V/div
OUTR
1V/div
200μs/div
10ms/div
PIN
1
2, 4
3
5
6
7
8
9, 15
10
11
12
13
14
16
NAME
INL
SGND
INR
VDD
SHDN
CPVDD
C1P
PGND
C1N
CPVSS
DIAG
OUTR
VSS
OUTL
Pin Description
FUNCTION
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 VSS and bypass with a 1µF capacitor to PGND.
Diagnostic Voltage Output
Right-Channel Output
Amplifier Negative Power Supply. Connect to CPVSS.
Left-Channel Output
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