PNA4601M Datasheet, PDF (2/3 Pages) Panasonic Semiconductor – Bipolar Integrated Circuit with Photodetection Function

PNA4601M, PNA4602M, PNA4608M, PNA4610M
Photo IC
Block Diagram
amplifier
AGC
B.P.F
PD
,,^{constant voltage}
peak hold
V_CC
demodulator
(20kΩ)
R_L
comparator
V_O
integrator
,,,^GND
,,
Panasonic Transmitter Specifications
LED Transmission unit
20cm
V out 55mV
Standard reception unit
PNZ323B
10kΩ
10µF
10kΩ
10kΩ
10V
V out
GND
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/
cm².
The maximum reception distance under these specifications is an assurance that T_WH and T_WL values will be
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.)
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