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參數資料
| 型號： | TOIM3000-TR1 |
| 英文描述： | IRDC IC |
| 中文描述： | IRDC集成電路 |
| 文件頁數： | 1/6頁 |
| 文件大?。?/td> | 66K |
| 代理商： | TOIM3000-TR1 |
TOIM3000
Vishay Telefunken
Rev. 1, 01-Apr-99
1
www.vishay.de
FaxBack +1-408-970-5600
Document Number 82520
Integrated Interface Circuits
ULC Technology:
High-performance gate array package using dual metal layer CMOS technology,
featuring sub-micron channel length (0.8 m)
Description
The TOIM300 IC provides the proper timing for the
front-end infrared transceivers of the 3000- and
4000-series, as specified by the IrDA standard. In the
transmit mode, the TOIM3xxx provides IrDA compat-
ible pulse shaping of the electrical pulses to the
infrared transceiver. In the receive mode, the
TOIM3000 stretches the received infrared pulses to
the proper bit width at the operating bit rate. The IrDA
bit rate varies between 2.4 kbit/s to 115.2 kbit/s.
For the UART interface, the TOIM3000 uses the
1.8432 MHz clock input as the fast clock and the baud
clock output from the UART to do the pulse stretching
and shortening. The baud clock is 16 times the baud
rate. The output pulses are fixed at 1.627 s or 3/16 of
bit time.
The typical power consumption of both circuits is very
low with about 10 mW in operational state and in the
order of microwatts in standby mode.
Features
Pulse shaping function (shortening and stretching)
used in infrared IrDA standard applications
Directly interfaces the infrared transceivers of the
3000 and 4000 series to a UART or a micro–
controller
3 V and 5 V operation
Low operating current
SO16L package
Block Diagram
Pulse
shaper
TD_IR
RD_IR
TD_232
RD_232
XIN
B_CLK
TD_UART
RD_UART
GND
V
RESET
CC
Figure 1. Block diagram
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