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RPM851 데이터시트 PDF




ROHM Semiconductor에서 제조한 전자 부품 RPM851은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


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부품번호 RPM851 기능
기능 IrDA wireless communication transceiver IC (supports Ver.1.0)
제조업체 ROHM Semiconductor
로고 ROHM Semiconductor 로고


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RPM851 데이터시트, 핀배열, 회로
Communication ICs
IrDA wireless communication
transceiver IC (supports Ver.1.0)
RPM851A Series
The RPM851A series is an IC that supports IrDA Ver 1.0, and is ideal for wireless communications.
An infrared LED, a pin-photo diode, and a receiver frequency formation LSI are all contained in a single package.
Also equipped with low power consumption and power down functions making this IC perfect for mobile sets.
FApplications
Personal computers, PDAs, DVCs, digital cameras, printers, cellular phones, PHS systems, hand-held terminals, and
others
FFeatures
1) Supports IrDA Ver. 1.0
2) Low power consumption while standing by for reception (typ. 220µA).
3) A power-down function is perfect for battery applications.
4) Supports a broad power supply voltage range from 2.7V to 5.5V.
5) The package supports mounting on both the upper and side surfaces.
6) Integrated shield case (RPM851A-H6)
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
FSeries
651




RPM851 pdf, 반도체, 판매, 대치품
Communication ICs
RPM851A Series
FElectrical characteristics (unless otherwise noted, LEDVCC = VCC = PINVCC = 3V, Ta = 25_C)
FOptical characteristics (unless otherwise noted, LEDVCC = VCC = PDVCC = 3V, Ta = 25_C)
654

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RPM851 전자부품, 판매, 대치품
Communication ICs
FOperation notes
(1) LEDVCC (pin5), VCC (pin122) and PINVCC (pin13)
S Other power source can be used within ± 0.2 [V] volt-
age difference between LEDVCC and VCC. VCC and
PINVCC should be supplied from the same source.
(2) Caution in designing board lay-out
S Pin1 is radiaton pin from LED as well. Wider pattern is
better.
S The line of RXDSIR (pin10) should be connected at
backside via through hole close to RPM851A pin lead.
Better not to be close to photo diode side (pin13).
! This is to minimize feedback supplied to photo diode
from RXDSIR.
S Capacitors for pin12 (VCC) and pin13 (PINVCC) should
be placed close to RPM851A.
FExternal dimensions (Units: mm)
RPM851A Series
S Better to be placed more than 1.0cm in radius from
photo diode (pin13) and also away from the parts
which generates noise, such as DC / DC converter.
Digital signal line, such as clock pulse, bus etc, are
also away more than 1.0cm in radius from photo diode.
S As for C1, C2 and, GND should be close to pin7 and
placed close to pins11, 12 and 13 (within 5mm).
(3) Please be sure to set up the TXD (pin6) input to be
“L” (under 0.5 [V]) except transmitting data (for < 90
µ s. ON Duty < 20%).
(4) Powerdown current might increase if exposed by
strong light (ex. direct sunlight) at powerdown mode.
(5) Please use by the signal form which is specified by
IrDA Ver1.0. There might be on error if used by differ-
ent signal form.
657

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관련 데이터시트

부품번호상세설명 및 기능제조사
RPM851

IrDA wireless communication transceiver IC (supports Ver.1.0)

ROHM Semiconductor
ROHM Semiconductor
RPM851A

IrDA wireless communication transceiver IC (supports Ver.1.0)

ROHM Semiconductor
ROHM Semiconductor

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