tda2075a Tripath Technology Inc., tda2075a Datasheet - Page 17

• Manufacturer Part Number: tda2075a
• Description: Stereo Class-t Digital Audio Amplifier Driver Using Digital Power Processingtm
• Manufacturer: Tripath Technology Inc.

For SPLIT-SUPPLY operation:
The modulator feedback resistors are:
The above equations assume that VPP=|VNN|.
For example, in a system with a SPLIT-SUPPLY of VPP
The resultant modulator gain is:
For SINGLE-SUPPLY operation:
The modulator feedback resistors are:
For example, in a system with a SINGLE-SUPPLY of VPP
The resultant modulator gain is:
A
A
V
V
17
-
-
MODULATOR
MODULATOR
R
R
R
R
R
R
R
R
R
A
R
R
R
A
FBA
FBB
FBC
FBA
FBB
FBC
FBA
FBB
FBC
FBB
FBC
FBB
V
V
-
-
= 1k:, 1%
= 1.111k:, use 1.1k:, 1%
= 2.17k:, use 2.15k:, 1%
= 1k:, 1%
= 10.0k:, use 10.0k:, 1%
= 13.0k:, use 13.0k:, 1%
MODULATOR
MODULATOR
350
User
|
User
2333.33
|
R
R
(1000
(VPP
FBA
FBA
10.0k
13.0k
*
specified,
*
VPP
*
4
specified,
VPP
VPP

|
|
-
1.0k
1.0k
*
4)
R
R
R
*
*
R

FBC
FBC
FBC
(1.0k
(1.0k
FBC
1000
)
R
R
*
*
*
*
typically
FBA
FBA
1.1k
(R
(R
2.15k
typically
FBA
FBA
*
*


R
R
1.1k
2.15k


FBB
FBB
R
R
1K
:
FBB
FBB
1K
:
)
:
)
)

)
:



1
1
1
1
20.09V/V
20.05V/V
MAX
T r i p a t h T e c h n o l o g y , I n c . - T e c h n i c a l I n f o r m a t i o n
MAX
=40V and VNN
= 40V,
MAX
T D A 2 0 7 5 A – R e v . 0 . 9 / K L i / 1 0 . 0 5
=-40V,