3

PNA4611M, PNA4612M, PNA4613M, PNA4614M, PNA4620M

Photo IC

GND

PD

AGC

peak hold

constant voltage

comparator

(20k

Ω)

integrator

B.P.F

demodulator

amplifier

Standard reception unit

LED Transmission unit

GND

10V

PNZ323B

20cm

10k

Ω

10k

Ω

10k

Ω

10

µF

V out

V out 55mV

Block Diagram

Panasonic Transmitter Specifications

The light output of the LED transmission unit is adjusted so that the transmission output (V out) of the standard

reception unit will be 55 mV when the transmission waveform (duty = 50%) is output from the LED transmis-

sion unit. Here, infrared sensitivity (SIR) of PNZ323B is 0.53

µA when emission illuminance (H) is 12.45 µW/

within the tolerance ranges when 16 consecutive pulses of an optical output equivalent to the maximum recep-

tion distance are transmitted by the above transmission unit (The maximum reception distance is measured in

the dark without external disturbance noise.)