Tripath Technology, Inc. - Technical Information
TA2022 PINOUT
32-pin SSIP Package
(Front View)
VBOOT2
VN10
VN10GND
VPP2
VN10SW
NC
OUT2
1
2
3
4
5
6
7
8
9
VNN2
VNN1
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
OUT1
NC
VPP1
VBOOT1
VN10FDBK
AGND
V5
REF
VNNSENSE
VPPSENSE
AGND
V5
OAOUT1
INV1
MUTE
OAOUT2
INV2
BIASCAP
FBKGND2
FBKOUT2
FBKGND1
FBKOUT1
HMUTE
P I N D E S C R I P T I O N
Pin
1, 13
2
Function
VBOOT2, VBOOT1
VN10
Description
Bootstrap voltages for gate drive of high side MOSFET’s
“Floating” supply input. Normally connected to the output of onboard VN10 buck
converter. This voltage must be stable and referenced to VNN.
Power ground for onboard VN10 generator. Electrically tied to the TA2022 case.
Positive power supply input pins.
3
4, 12
5
VN10GND
VPP2, VPP1
VN10SW
NC
Switching output voltage for onboard VN10 generator (buck converter).
Not connected internally. May be connected to pin 7 without any loss of
functionality or performance.
6
7,10
8, 9
11
OUT2, OUT1
VNN2, VNN1
NC
Power amplifier outputs.
Negative power supply inputs.
Not connected internally. May be connected to pin 10 without any loss of
functionality or performance.
Feedback for onboard VN10 generator (nominally 11V above VNN)
Analog Ground.
14
15, 20
16, 21
17
VN10FDBK
AGND
V5
5V power supply input.
REF
Used to set internal bias currents. The pin voltage is typically 1.1V.
Negative supply voltage sense input. This pin is used for both over and under
voltage sensing for the VNN supply.
Positive supply voltage sense input. This pin is used for both over and under
voltage sensing for the VPP supply.
18
VNNSENSE
19
VPPSENSE
22, 25
23, 26
24
OAOUT1, OAOUT2
INV1, INV2
Outputs of Input Stage op amps.
Inverting inputs of Input Stage op amps.
MUTE
Logic input. A logic high puts the amplifier in mute mode. Ground pin if not used.
Please refer to the section, Mute Control, in the Application Information.
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.
Output voltage differential feedback for channel 2.
Output voltage differential feedback for channel 1.
Logic Output. A logic high indicates both amplifiers are muted, due to the mute
pin state, or a “fault” such as an overcurrent, undervoltage, or overvoltage
condition.
27
BIASCAP
28, 29
30,31
32
FBKGND2, FBKOUT2
FBKGND1, FBKOUT1
HMUTE
6
TA2022 – KLI/1.2/07-04
TRIPATH [ TRIPATH TECHNOLOGY INC. ]
