PT2248 View Datasheet(PDF) - Princeton Technology

Part Name

Description

Manufacturer

PT2248

Infrared Remote Control Transmitter

Princeton Technology 

Infrared Remote Control Transmitter

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

PT2248

KEY MATRIX

KEY NO. 1~ 6

These are continuous keys. Multiple Keying is possible.

KEY NO. 7 ~ 18

These are single-shot keys. When an input is made, there is only one signal output.

T1 T2

T3

K1

1

7

13

K2

2

8

14

K3

3

9

15

K4

4

10

16

K5

5

11

17

K6

6

12

18

(H) (S1) (S2)

TRANSMISSION COMMAND

The Transmission Command consists of one Command Word. One Command Word is composed of

Code Bits (3-bit), Continuous Code (1-bit), Single-Shot Code (2-bit) and the Key Input Code (6-bit).

Thus, one Command Word has 12-bit. C1 ~ C3 are code bits that are adaptable to many models. “H”

indicates the continuous signal code while “S1” and “S2” are single-shot signal codes. D1 ~ D6 are key

input data codes in 6 bits.

C1 C2 C3 H S1 S2 D1 D2 D3 D4 D5 D6

Code Bits Continuous

S in g le -S h o t

C o de

Key Input Code

PT2248 V2.7

-5-

June, 2005

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