Data Sheet S13198EJ2V0DS

6

µµµµ PC2807, 2807A

APPLICATION CIRCUIT EXAMPLE (at carrier frequency of 37.9 kHz)

Remark f

= 37.9 kHz for the

µPC2807. In the µPC2807A, f = 40.0 kHz.

6

13

12

11

10

TRAP

skip

First-stage

amplifier

4

Waveform-shaping

circuit

2

Limiter

amplifier

Trimming

circuit

1

fO setting

8

7

3

GND1

GND2

OUTPUT

9

5

OUT

S3

S2

PAD1

IN

S1

TRAP

BPF

5 V

VCC

Detector

22 k

Ω

PIN

Photo-

diode

+

I/V

ABLC

Carrier

elimination