PT2249A Ver la hoja de datos (PDF) - Princeton Technology
Número de pieza
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Fabricante
PT2249A Datasheet PDF : 6 Pages
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Princeton Technology Corp.
Tel: 886-2-29162151
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Infrared Remote Control Receiver
PT2249A / PT2250A Series
e) The Code Bits Combinations of PT2248 and PT2250A Series are shown
below:
PT2248
C1 C2 C3
001
011
101
111
PT2250A Series
C1
C2
0
0
0
1
1
0
1
1
f) Example : (Refer to Example 2 diagram)
The following example shows the case when PT2248 Code Bits C1 = 0,
C2 = 0, and C3 = 1. The CODE1 and CODE2 pins of the PT2250A Series
are connected to the Vss (C1=0 and C2=0). In this way, the PT2250A or
any of its series matches the C1 and C2 Code Bits of PT2248; thus, the
remote commands are correctly decoded.
PT2248
CODE T3 T2 T1 K6
C1=0 C2=0
PT2250A Series
CODE1 CODE2 OSC Vcc
+5V
C1=0 C2=0
Example 2
Circuit Diagram when Code Bit C1= 0 and C2 = 0
PT2249A/50A v 2.3
Page 6
Revised Dec. 1999
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