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RPM870-H7

Rohm
Part Number RPM870-H7
Manufacturer Rohm
Description IrDA wireless communication transceiver IC
Published Apr 16, 2005
Detailed Description RPM870-H7 Photo Link Module IrDA wireless communication transceiver IC (supports Ver. 1.2 Low Power) RPM870-H7 The RPM8...
Datasheet PDF File RPM870-H7 PDF File

RPM870-H7
RPM870-H7

Overview
RPM870-H7 Photo Link Module IrDA wireless communication transceiver IC (supports Ver.
1.
2 Low Power) RPM870-H7 The RPM870-H7 is an Module that supports IrDA Ver.
1.
2 (Low Power), and is ideal for wireless communications.
An infrared LED, a pin-photo diode, and a receiver frequency formation LSI are all contained in a very small single package.
It is also equipped with low power consumption and power down functions making this IC perfect for mobile sets.
!Features 1) Supports IrDA Ver.
1.
2.
(Low Power) 2) Low power consumption while standing by for receiving (75µA Typ.
).
3) A power-down function is perfect for battery applications.
4) Supports a board power supply voltage range from 2.
6V to 3.
6V.
5) Only 1 external capacitor required.
!Applications Mobile phones, PDAs, and others !Absolute maximum ratings (Ta = 25°C) Parameter Supply voltage Input voltage Operating temperature Storage temperature LED peak current Power dissipation ∗1 LED peak current : <90µsec, on duty < 20% Symbol VCC Vin Topr Tstg Ifp Pd Limits 7.
0 −0.
3~VCC+0.
3 −20~+85 −30~+100 120 100 ∗1 Unit V V °C °C mA mW !Recommended operating conditions (Ta = 25°C) Parameter Supply voltage Symbol VCC VLEDA Min.
2.
6 2.
6 Typ.
3.
0 3.
0 Max.
3.
6 5.
5 Unit V V RPM870-H7 Photo Link Module !Block diagram and application circuit AMP GND 1 2 NC VCC VCC C1 GND GND AMP AMP 4 POWER DOWN PWDOWN 3 PWDOWN 5 RXD RXD 6 TXD TXD 7 LEDA (LEDVCC) Recommended values Part symbol C1 Recommended value 1µF, tantalum Ex.
) TCFGA1A105M8R (ROHM) Notice Bigger capacitance is recommended with much noise from power supply 8 RPM870-H7 Photo Link Module !Terminal description Pin No 1, 4 2 Terminal GND NC Circuit GND This terminal must be left open.
VCC For preventing from ripple noise.
connect a capacitor between VCC (3pin) and GND (4pin).
VCC Power-down control terminal H : POWERDOWN L : OPERATION CMOS logic level input When input is L, it will stop the receiving circuit, Pin-PD current and transmitting LED operation.
...


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