參數(shù)資料
型號: TOIM3000-TR1
英文描述: IRDC IC
中文描述: IRDC集成電路
文件頁數(shù): 4/6頁
文件大小: 66K
代理商: TOIM3000-TR1
TOIM3000
Vishay Telefunken
Rev. 1, 01-Apr-99
4
www.vishay.de
FaxBack +1-408-970-5600
Document Number 82520
Application
OUT1
UART
TFDS
4000
RS232
SOUT
SIN
XOUT
BAUDOUT
RESET
TD_UART
RD_UART
XIN
B_CLK
S0 S1
TD_IR
RD_IR
TD_232
RD_232
TXD
RXD
TXD
RXD
SD
TOIM3000
V
R2
R1
C1, C2
8 3
CC
V
CC
R3
Figure 2. UART interface (built-in infrared port)
Figure 2 shows a typical example of a UART interface.
As shown, XIN accepts the 1.8432 MHz input clock,
and B_CLK accepts the 16 times baud rate clock.
Set S1 = S0 = LOW (“0”). When RESET = 0, the
TOIM3000 communicates with the infrared trans-
ceiver TFDS4000. On the other hand, if RESET = 1,
the TOIM3000 communicates with the RS232 port.
R1 = 2.2 k optional, only necessary when RxD–
RD_IR line is capacitive loaded, R2 = 100
R3 = 10 , C1 = 6.8 F and C2 = 0.1 F. C1 and C2
are in parallel (V
CC
= 5 V, in case of 3 V supply, value
of R3 should be reduced (IrDA Design Guide).
,
Table 1. Recommended Application Circuit Components
Component
C1
6.8 F
C2
0.1
μ
F
R1
2.2 k
R2
100
R3
10
Recommended Value
Vishay Part Number
293D 685X9 016B 2T
VJ 1206 Y 104 J XXMT
CRCW–1206–2201–F–RT1
CRCW–1206–1000–F–RT1
CRCW–1206–10R0–F–RT1
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