Philips Semiconductors Linear Products

Product specification

NE/SE567

Tone decoder/phase-locked loop

April 15, 1992

414

NOTES:

R2 = R1/5

Adjust R1 so that φ = 90° with control midway.

NOTES:

1. Resistor and capacitor values chosen for desired frequencies and bandwidth.

2. If C3 is made large so as to delay turn-on of the top 567, decoding of sequential (f1 f2) tones is possible.

Dual-Tone Decoder

24% Bandwidth Tone Decoder

Precision VLF

Carrier-Current Remote Control or Intercom

0

° to 180° Phase Shifter

AUDIO OUT

(IF INPUT IS

FREQUENCY

MODULATED)

LOAD

+5 TO 15V

567

3

5

6

2

1

8

60Hz AC LINE

500pF

50–200VRMS

fO ≈ 100kHz

C2

C3

C1

0.004mfd

.006

.02

K1

C4

27pF

1:1

R1

2.5k

Ω

567

5

6

5741

–

+

+

C1

R1

INPUT

CHANNEL

OR RECEIVER

567

3

5

6

2

1

8

567

3

5

6

2

1

8

C1

C2

C3

C’1

C’2

C’3

R1

R’1

NOR

20k

20k

+V

+V

VO

f1

f2

OUTPUT

(INTO 1k

OHM MIN.

LOAD)

567

3

5

6

2

R1

f2

C1

C2

100mv (pp)

SQUARE OR

50mVRMS

SINE INPUT

+90

°

PHASE

SHIFT

567

3

5

6

2

1

8

567

3

5

6

2

1

8

INPUT SIGNAL

(>100mVrms)

+V

RL

R1

R’1

C’1

C’2

C1

C2

C3

C

2 +

C

2 +

130

f

O

(mfd)

C

1 +

C

1

R

1 +

1.12R

1