6

LTC1560-1

sn15601 15601fs

APPLICATIONS INFORMATION

The performance of the LTC1560-1 can be easily evaluated

by using demo board 135A which can be obtained through

LTC marketing. Figure 2 shows the circuit connection of

the LTC1560-1 in demo board 135A. The filter cutoff

frequency can be switched via S2 and the power savings

mode can also be activated via S1. The output of the filter

is buffered by U2, an LT

®1360 op amp. The buffering can

be bypassed by using jumper JP1. Figure 3 shows the

demo board layout.

Figure 3. Demo Board 135A Layout

UNBUFFERED OUTPUT

FILTER INPUT

GROUND

+ 5V FILTER SUPPLY

GROUND

– 5V FILTER SUPPLY

BUFFERED OUTPUT

GROUND

+15V BUFFER SUPPLY

– 15V BUFFER SUPPLY

1560-1 F03

1

2

3

4

8

7

6

5

U1

LTC1560-1

JP1

JUMPER

R1

1k

2

7

4

3

6

VOUT

SHDN

V +

0.5fC/fC

GND

VIN

GND

V –

C1

0.01

µF

C9

0.01

µF

C10

1

µF

25V

Y5V

C8

1

µF

25V

Y5V

C6

1

µF

16V

X7R

C5

0.22

µF

C4

0.01

µF

C2

0.22

µF

E2

TP

–5V

C3

1

µF

16V

X7R

S1

GS01MSCKE

S2

GS01MSCKE

E1

TP

VIN

3

2

1

R2

332

Ω

U2

LT1360CS8

C7

0.01

µF

E10

TP

GND

E9

TP

GND

E8

TP

GND

E7

TP

5V

1560-1 F02

E6

TP

– 15V

E5

TP

OUT1

E4

TP

15V

E3

TP

OUT2

Figure 2. Demo Board 135A Connection Diagram