SL2055 Просмотр технического описания (PDF) - AUK -> KODENSHI CORP

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производитель

SL2055

PREAMPLIFIER FOR REMOTE CONTROL USE

AUK -> KODENSHI CORP 

Terminal Functions

SL2055

IN +

(input pin)

Connect a photodiode with pin structure between the pin8 and GND.

An ABLC (Automatic Bias Level Control)circuit is built into the input section to prevent the

input level from being saturated by the external disturbing lights, such that this circuit is

actuated by a strong external disturbing light to fix the bias level of the input terminal.

IN –

(head amplifier gain setting pin)

Connect a resistor and a capacitor in series between the pin7 and GND for setting the

frequency characteristics and gain of the head amplifier.

Increasing the value of a resistor or decreasing the value of a capacitor, the gain becomes

small.

When the capacitance is large the sensitivity is lowered against the transient response.

Cd

(detector capacitor connector pin)

Connect the capacitor to detect between the pin6 to GND.

When capacitance is large detected value is to the average, when it is small detected value

is closer to the peak and output pulse width became, so that the most proper output pulse

width variation and noise reduction characteristics can be obtained.

GND (ground pin)

Fo

(BPF central or frequency setting pin)

Connect a resistor between the pin3 (VCC2) and the pin4

When the resistance is large, the central frequency of the built-in BPF is lowered.

VCC2

(power output pin)

As the power is output to pin3 through the internal power filter resistance, connect

An electrolytic capacitor to pin3

OUT

(output pin)

Open collector output width pull-up resistance.

Its capability to drive a CMOS or TTL makes for easy connection with a receiving

microcomputer.

The SL2055 has an active low output.

VCC1

(power supply pin)

Supply voltage of 5V±10% is applied to this terminal

KSI-W025-001

5

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