PT2249AL datasheet(4/23 Pages) PTC

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PT2249A_PT2250A V2.6

- 4 -

May, 2007

Remote Control Receiver IC

PT2249A_PT2250A

PIN DESCRIPTION

Pin No.

Pin Name

PT2249A

PT2249A-SN

PT2249AL

PT2249AHN

PT2250A

I/O

Description

Vss

Negative Power Supply

RXIN

Receiver Input.

Instruction signal with carrier wave

eliminated should be inputted to

this pin. Input signal may be

optionally inverted before fed into

internal decoding circuit.

HP1 ~ HP5

3 ~ 7

HP6

Hold Pulse.

As long as proper signal is

received, this output is held at “H”

level. (approximately 160ms will

be “0” after key is released.)

CP1

CP2

Cyclic Pulse.

When receiving signal is inputted,

CP1/CP2 is inversed. CP1 output

may be optionally governed by

(dependent to) the output state of

CP2. See Functional Description

for details.

SP1 ~ SP3

12 ~ 10

20 ~ 18

SP4

SP5

SP6 ~ SP10

15 ~ 11

Single Pulse.

When the receiving signal is

inputted, the active output will be

at “H” level only for a fixed

duration of time (approximately

107 msec), then it will return to “L”

level.

CODE1

CODE2

CODE3

Tx/Rx Matching Code.

Transmitter Code is compared

with a code set at this terminals

and if matched, input is accepted.

OSC

I/O

OSC Input/Output.

A resistor and a capacitor are in

parallel connection between this

terminal and Vss.

Vcc

Positive Power Supply

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