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TC2000 Fiches technique(PDF) 3 Page - Tripath Technology Inc.

No de pièce TC2000
Description  STEREO CLASS-T??AUDIO CONTROLLER USING DIGITAL POWER PROCESSING (DPP?? TECHNOLOGY
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Fabricant  TRIPATH [Tripath Technology Inc.]
Site Internet  http://www.etelos.com/
Logo TRIPATH - Tripath Technology Inc.

TC2000 Fiches technique(HTML) 3 Page - Tripath Technology Inc.

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Tr i p ath Technol ogy, I n c. - Techni cal I n for m ati on
3
TC2000 – KLI/1.1/12-03
TC2000 AUDIO SIGNAL PROCESSOR PIN DESCRIPTIONS
Pin
Function
Description
1
BIASCAP
Bandgap reference times two (typically 2.5VDC). Used to set the common mode voltage
for the input op amps. This pin is not capable of driving external circuitry.
2, 6
FDBKP2, FDBKP1
Positive switching feedback.
3
DCMP
Internal mode selection. This pin must be grounded for proper device
operation.
4, 7
FDBKN2, FDBKN1
Negative switching feedback.
5
VPWR
Test pin. Must be left floating.
8
HMUTE
Logic output. A logic high indicates both amplifiers are muted, due to the mute pin state, or
a “fault”.
9, 12
Y1, Y2
Non-inverted switching modulator outputs.
10, 11
Y1B, Y2B
Inverted switching modulator outputs.
13
NC
No connect
14,16
OCD2, OCD1
Over Current Detect. Ground if not used.
15
REF
Internal reference voltage; approximately 1.2 VDC.
17
VNNSENSE
Negative power stage over/under supply voltage sense resistor tie point.
18
OVRLDB
A logic low output indicates the input signal has overloaded the amplifier.
19
VPPSENSE
Positive power stage over/under supply voltage sense resistor tie point.
20
AGND
Ground
21
V5
5 Volt power supply input.
22, 27
OAOUT1, OAOUT2
Input stage output pins.
23, 28
INV1, INV2
Single-ended inputs. Inputs are a “virtual” ground of an inverting opamp with
approximately 2.4VDC bias.
24
MUTE
When set to logic high, both amplifiers are muted and in idle mode. When low (grounded),
both amplifiers are fully operational. If left floating, the device stays in the mute mode.
Ground if not used.
25, 26
BBM1, BBM0
Break-before-make timing control.
TC2000 AUDIO SIGNAL PROCESSOR PINOUT
BIASCAP
FDBKP2
DCMP
FDBKN2
VPW R
FDBKP1
FDBKN1
HMUTE
Y1
Y1B
Y2B
Y2
NC
OCD2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
REF
OCD1
VNNSENSE
OVRLDB
VPPSENSE
AGND
V5
OAOUT1
INV1
MUTE
BBM1
BBM0
OAOUT2
INV2


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