HT37B90 datasheet(64/80 Pages) HOLTEK

64 / 80 page

ApplicationCircuits

Note:

If user has used internal power AMP circuit, need to add two capacitances (47

mF, 0.1mF) that be connected be-

tween VDD_AMP and VSS.

HT37B90/HT37B70/HT37B50/HT37B30

Rev.1.00

June22,2017

H T 3 7 B 9 0 / 7 0 / 5 0 / 3 0

0 . 1 m F

R E S

1 0 0 k W

V D D

0 . 1 m F

V S S _ D A C

V S S _ A M P

V D D

1 0 W

4 7 m F

0 . 1 m F

V D D _ D A C

V S S _ A D C

S p e a k e r

( 8 W )

4 7 m F

0 . 1 m F

V D D

O S C 1

O S C 2

V D D _ A M P

V D D _ A D C

5 0 k W

V S S

1 0 m F

H T 8 2 V 7 3 3

0 . 1 m F

1 0 m F

O U T N

V D D

V R E F

C E

I N

S P K

( 8 W )

5 0 k W

O U T N

O U T P

V D D

4 7 m F

A u d _ i n

* R C H

V b i a s

S P +

S P -

L C H

I n t e r n a l P o w e r

A M P C i r c u i t

H T 3 7 B 9 0 / 7 0 / 5 0 / 3 0

R E S

1 0 0 k W

V D D

0 . 1 m F

V S S _ D A C

V S S _ A M P

V D D

1 0 W

V D D _ D A C

V S S _ A D C

4 7 m F

0 . 1 m F

V D D

V D D _ A M P

V D D _ A D C

V S S

L C H

R C H

V D D

S P K

( 8 W )

7 5 0 W

1 k W

V D D

S P K

( 8 W )

7 5 0 W

1 k W

O S C 1

O S C 2

1 1 . 0 5 9 M H z

HT37B90 Datasheet(PDF) 64 Page - Holtek Semiconductor Inc

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