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參數資料
| 型號： | TPA005D14DCA |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 音頻放大器 |
| 英文描述： | 2-W STEREO CLASS-D AUDIO POWER AMPLIFIER |
| 中文描述： | 2 - W立體聲D類音頻功率放大器 |
| 文件頁數： | 3/29頁 |
| 文件大小： | 420K |
| 代理商： | TPA005D14DCA |
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TPA005D14
2-W STEREO CLASS-D AUDIO POWER AMPLIFIER
SLOS240A – AUGUST 1999 – REVISED MARCH 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
NAME
DESCRIPTION
NO.
AGND
7, 20,
46, 47
Analog ground for headphone and Class-D analog sections
COSC
48
Capacitor I/O for ramp generator. Adjust the capacitor size to change the switching frequency.
CP1
25
First diode node for charge pump
CP2
24
First inverter switching node for charge pump
CP3
23
Second diode node for charge pump
CP4
26
Second 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
17
Depop control for left headphone
HPDR
32
Depop control for right headphone
HPLIN
19
Headphone amplifier left input
HPLOUT
18
Headphone amplifier left output
HPRIN
30
Headphone amplifier right input
HPROUT
31
Headphone amplifier right output
LCOMP
6
Compensation capacitor terminal for left-channel Class-D amplifier
LINN
4
Class-D left-channel negative input
LINP
5
Class-D left-channel positive input
LOUTN
14, 15
Class-D amplifier left-channel negative output of H-bridge
LOUTP
10, 11
Class-D amplifier left-channel positive output of H-bridge
LPVDD
9, 16
Class-D amplifier left-channel power supply
MODE
3
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 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.
PGND
12, 13
Power ground for left-channel H–bridge only
PGND
27
Power ground for charge pump only
PGND
36, 37
Power ground for right-channel H-bridge only
PVDD
RCOMP
21, 28
VDD supply for charge-pump and gate-drive circuitry
Compensation capacitor terminal for right-channel Class-D amplifier
43
RINN
45
Class-D right-channel negative input
RINP
44
Class-D right-channel positive input
RPVDD
ROUTN
33, 40
Class-D amplifier right-channel power supply
34, 35
Class-D amplifier right-channel negative output of H-bridge
ROUTP
38, 39
Class-D amplifier right-channel positive output of H-bridge
SHUTDOWN
1
Active-low logic-level shutdown input signal. When SHUTDOWN is held low, the device goes into shutdown mode.
When SHUTDOWN is held at logic high, the device operates normally.
V2P5
29
2.5-V internal reference bypass
VCP
22
Storage capacitor terminal for charge pump
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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