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TPA3003D2PFBG4 Fiches technique(PDF) 4 Page - Texas Instruments

No de pièce TPA3003D2PFBG4
Description  3-Q STEREO CLASS-D AUDIO POWER AMPLIFIER WITH DC VOLUME CONTROL
Download  34 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

TPA3003D2PFBG4 Fiches technique(HTML) 4 Page - Texas Instruments

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TPA3003D2
SLOS406A − FEBRUARY 2003 − REVISED MARCH 2003
4
www.ti.com
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NO.
NAME
I/O
DESCRIPTION
AGND
9, 10, 26
Analog ground for digital/analog cells in core
AVCC
33
High-voltage analog power supply (8.5 V to 14 V)
AVDD
29
O
5-V Regulated output
AVDDREF
7
O
5-V Reference output—provided for connection to adjacent VREF terminal.
BSLN
13
I/O
Bootstrap I/O for left channel, negative high-side FET
BSLP
24
I/O
Bootstrap I/O for left channel, positive high-side FET
BSRN
48
I/O
Bootstrap I/O for right channel, negative high-side FET
BSRP
37
I/O
Bootstrap I/O for right channel, positive high-side FET
COSC
28
I/O
I/O for charge/discharging currents onto capacitor for ramp generator triangle wave biased at V2P5
FADE
30
I
Input for controlling volume ramp rate when cycling SD or during power-up. A logic low on this pin places
the amplifier in fade mode. A logic high on this pin allows a quick transition to the desired volume setting.
LINN
6
I
Negative differential audio input for left channel
LINP
5
I
Positive differential audio input for left channel
LOUTN
16, 17
O
Class-D 1/2-H-bridge negative output for left channel
LOUTP
20, 21
O
Class-D 1/2-H-bridge positive output for left channel
MUTE
34
I
A logic high on this pin disables the outputs. A low on this pin enables the outputs.
NC
31, 32,
35
Not internally connected
PGNDL
18, 19
Power ground for left channel H-bridge
PGNDR
42, 43
Power ground for right channel H-bridge
PVCCL
14, 15
Power supply for left channel H-bridge (tied to pins 22 and 23 internally), not connected to PVCCR or
AVCC.
PVCCL
22, 23
Power supply for left channel H-bridge (tied to pins 14 and 15 internally), not connected to PVCCR or
AVCC.
PVCCR
38,39
Power supply for right channel H-bridge (tied to pins 46 and 47 internally), not connected to PVCCL or
AVCC.
PVCCR
46, 47
Power supply for right channel H-bridge (tied to pins 38 and 39 internally), not connected to PVCCL or
AVCC.
REFGND
12
Ground for gain control circuitry. Connect to AGND. If using a DAC to control the volume, connect the DAC
ground to this terminal.
RINP
3
I
Positive differential audio input for right channel
RINN
2
I
Negative differential audio input for right channel
ROSC
27
I/O
Current setting resistor for ramp generator. Nominally equal to 1/8*VCC
ROUTN
44, 45
O
Class-D 1/2-H-bridge negative output for right channel
ROUTP
40, 41
O
Class-D 1/2-H-bridge positive output for right channel
SD
1
I
Shutdown signal for IC (low = shutdown, high = operational). TTL logic levels with compliance to VCC.
VCLAMPL
25
Internally generated voltage supply for left channel bootstrap capacitors.
VCLAMPR
36
Internally generated voltage supply for right channel bootstrap capacitors.
VOLUME
11
I
DC voltage that sets the gain of the amplifier.
VREF
8
I
Analog reference for gain control section.
V2P5
4
O
2.5-V Reference for analog cells, as well as reference for unused audio input when using single-ended
inputs.


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