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U2532B Datasheet

  • U2532B

  • IR Transmitter and Receiver

  • 10頁

  • TEMIC

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U2532B
IR Transmitter and Receiver
Description
The IC U2532B is a complete IR-Transmitter-Receiver
IC according to the new IrDA 1.0 standard.
ASK-modulation is also possible. Only an external
PIN-photodiode and an infrared emitting diode with
current limiting resistor must be connected to the
corresponding pins. The amplifier with Schmitt-Trigger
formed output signal and the IR-driver need no further
external components. The IC allows data rates from
2.4 kbit/s to 115.2 kbit/s and up to 500 kHz for
ASK-modulation. Two different sensitivity modes, which
can be programmed by applying a 鈥淗igh鈥?or 鈥淟ow鈥?/div>
voltage at pin SC, ensure either an increase in
transmission distance or a bit error rate of 1E-9. An
internal AGC allows proper operation under EMI
conditions.
Features
D
D
D
D
D
D
D
Data rates up to 115.2 kbit/s
Wide supply voltage range (3 to 5.5 V)
AGC for EMI immunity
AGC reset
High and low sensitivity mode
BER < 1E-9 in the low sensitivity mode
Power-On reset
Applications
D
D
D
D
IR data transmission
Compatible to IrDA
Bidirectional IR data transmission
Ability to receive ASK modulation
Case:
SO16
V
CC
R
L
TxD
Driver
Amp
(AGC)
ST
RxD
SC
Reset
Figure 1.
95 10210
TELEFUNKEN Semiconductors
Rev. A1, 27-Sep-96
1 (10)
Preliminary Information

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