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TPA032D03 Datasheet(PDF) 3 Page - Texas Instruments

Part No. TPA032D03
Description  10-W MONO CLASS-D AUDIO POWER AMPLIFIER
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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TPA032D03 Datasheet(HTML) 3 Page - Texas Instruments

 
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TPA032D03
10-W MONO CLASS-D AUDIO POWER AMPLIFIER
SLOS283A – DECEMBER 1999 – REVISED MARCH 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
DESCRIPTION
NAME
NO.
DESCRIPTION
AGND
7, 20,
43, 44,
45, 46, 47
Analog ground for headphone and Class-D analog sections
COMP
6
Compensation capacitor terminal for Class-D amplifier
COSC
48
Connect a capacitor from analog ground to this terminal to set the frequency of the ramp reference signal.
CP1
24
First diode node for charge pump
CP2
25
First inverter switching node for charge pump
FAULT0
42
Logic level fault0 output signal. Lower order bit of the two fault signals with open drain output.
FAULT1
41
Logic level fault1 output signal. Higher order bit of the two fault signals with open drain output.
HPDL
23
Depop control for left headphone
HPDR
26
Depop control for right headphone
HPLIN
19
Headphone amplifier left input
HPLOUT
18
Headphone amplifier left output
HPREG
17
5-V regulator output. This terminal requires a 1-
µF capacitor to ground for stability reasons.
HPRIN
30
Headphone amplifier right input
HPROUT
31
Headphone amplifier right output
HPVCC
32
5V supply to headphone amplifier and logic. This terminal is typically connected to HPREG.
INN
4
Class-D negative input
INP
5
Class-D positive input
MODE
3
TTL logic-level mode input signal. When MODE is held low, the main Class-D amplifier is active. When MODE is
held > high, the head phone amplifier is active.
MUTE
2
Active-low TTL logic-level mute input signal. When MUTE is held low, the selected amplifier is muted. When MUTE
is held > high, the device operates normally. When the Class-D amplifier is muted, the low-side output transistors
are turned on, shorting the load to ground.
NC
34, 35,
38, 39
No connection
OUTN
14, 15
Class-D amplifier negative output of H-bridge
OUTP
10, 11
Class-D amplifier positive output of H-bridge
PGND
12, 13
Power ground for H–bridge only
PGND
27
Power ground for charge pump only
PGND
36, 37
Power ground for H-bridge only
PVDD
9, 16, 21,
28, 33, 40
VDD supply for charge-pump, headphone regulator, Class-D amplifier, and gate drive circuitry
SHUTDOWN
1
Active-low TTL logic-level shutdown input signal. When SHUTDOWN is held low, the device goes into shutdown
mode. When SHUTDOWN is held high, the device operates normally.
V2P5
29
2.5V internal reference bypass. This terminal requires a capacitor to ground.
VCP
22
Connect a capacitor from this terminal to power ground to provide storage for the charge pump output voltage.
VDD
8
VDD bias supply for analog circuitry. This terminal needs to be well filtered to prevent degrading the device
performance.


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