Figure 25. lm 1877 schematic, An168 – Cirrus Logic AN168 User Manual

Page 35

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background image

AN168

AN168REV2

35

+26dB

-17dB

2 Watts into 4 ohms

Gain = +9dB

Gain = [R2/(R1+R2)]*[1+R3/R5+R6/R5]

CS6422_A0

+14V

R2

12.1K

R1

73.2K

+

C3

10uF

C9

0.1uF

R9

2.7ohm

LS1

4 Ohm SPEAKER

C8

0.1uF

+

C5

100uF

R4

1M

R7

1M

R3

12.1K

R5

1.33K

R6

13.3K

R8

2.7ohm

C6

0.1uF

C1

6200pF

+

C7

100uF

+

-

+

-

U?

LM1187

8

1

3-5,10-12

13

2

14

6

7

9

C2

3900pF

Fi

gure 25

. LM 187

7

Schema

tic

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