Functional diagrams (continued) – Rainbow Electronics MAX9704 User Manual

Page 13

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MAX9703/MAX9704

15W, Filterless, Spread-Spectrum

Mono/Stereo Class D Amplifiers

______________________________________________________________________________________

13

MAX9704

0.47µF

LOGIC INPUTS SHOWN FOR A

V

= 16dB (SSM).

V

IN

= LOGIC HIGH > 2.5V.

INL+

10

9

19

11

17

18

12

13 AGND

14

6

5

20

INL-

FS1

V

REG

V

REG

V

REG

V

REG

FS2

G1

G2

SS

REG

0.47µF

MODULATOR

OSCILLATOR

CHARGE PUMP

C1P

C1
0.1µF
25V

C1N

0.18µF

10V

V

IH

GAIN

CONTROL

SHUTDOWN

CONTROL

0.47µF

10V

SHDN

H-BRIDGE

OUTL+

OUTL+

OUTL-

OUTL-

32

31

30

29

PGND

V

DD

V

DD

PGND

1

3

4

21 22

23 24

2

10V TO 25V

100µF

25V

0.1µF

25V

0.1µF

25V

C2
1µF
25V

CHOLD

V

DD

7

0.47µF

INR+

15

16 INR-

0.47µF

MODULATOR

H-BRIDGE

OUTR+

OUTR+

OUTR-

OUTR-

26

25

28

27

V

REG

Functional Diagrams (continued)

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