No. 7139-3/5

LA2901V

Sample Application Circuit and Block Diagram

36k

Ω

36k

Ω

36k

Ω

30k

Ω

30k

Ω

12k

Ω

36k

Ω

12k

Ω

30k

Ω

30k

Ω

36k

Ω

36k

Ω

+

+

22

µF

22

µF

LF-IN

LR-IN

Ripple

Filter

+

22

µF

22

µF

RF-IN

+

22

µF

RR-IN

+

DC-R

DC-L

--

--

+

--

+

--

+

+

--

+

--

+

--

+

--

+

--

+

+

22

µF

22

µF

+

+

+

+

+

22

µF

+

LF-OUT

LR-OUT

RF-OUT

RR-OUT

VCC

9.0V

VREF

VREF

VREF

VREF

VREF

VREF

VCC

VCC

VCC

VCC

SIGNAL

AMP

SIGNAL

AMP

LIFT

AMP

LIFT

AMP

SIGNAL

AMP

SIGNAL

AMP

--

+

--

+

--

+

ILA00923

1

2

3

4

5

6

7

8

9

10

11

12

24

23

22

21

20

19

18

17

16

15

14

13

X

X

Note: We recommend using resistors with tolerances of 1% or better for the 24 k

Ω and 36 kΩ feedback resistors.