TSLM1100 Datasheet, PDF (1/7 Pages) Texas Instruments – IrDA COMPLIANT TRANSCEIVER

TSLM1100
IrDA COMPLIANT TRANSCEIVER
D Fully Compliant with IrDA 1.1 (4 MBPS)
D Compatible with ASK, HP-SIR and TV
Remote
D No Programming Required to Switch
Speeds
D Backward Compatible to Slower IrDA
Speeds
D Excellent Noise Immunity
D Fully Supportable by all Interface Chips
D Designed to Compensate for Light Loss
Caused by Cosmetic Windows
SOES034A – SEPTEMBER 1997 – REVISED OCTOBER 1997
SRA PACKAGE
(TOP VIEW)
CX1 ¹
2 34 5 6 78 9
10 _LEDA
description
The TSLM1100 is an infrared transceiver that provides the interface between logic and IR signals for through-air,
serial, half-duplex IR data links. The TSLM1100 is compliant with the Infrared Data Association (IrDA) 1.1
physical-layer specification. Additionally, the TSLM1100 is compatible with ASK, HP-SIR and TV Remote
standards.
The TSLM1100 is a hybrid device that includes a high-speed AIGaAs 870-nm LED, a silicon intrinsic PN junction
(PIN) diode, and a LinCMOS transceiver integrated circuit. This IC has the LED driver and a receiver that
provides two output signals: RXD-A for data rates from 2.4 kb/s to 115.2 kb/s and RXD-B for data rates of
576 kb/s to 4.0 Mb/s.
The device is encapsulated in a visible-light-rejecting plastic package that has integral lenses for the LED and
the PIN diode. The receiver lens increases the effective area of the PIN diode to increase sensitivity. The LED
lens is designed to provide a beam angle of ± 30°. The receiver outputs pulse low when an IR signal is detected.
The power supply for both PIN diode and LED should be filtered to minimize noise from external sources.
This transceiver is well suited for a wide variety of IR interface applications including: PC notebooks, PDAs,
pagers, printers, cameras, LANs, telephones and industrial handheld devices.
FUNCTION TABLE
INPUTS
OUTPUTS
TXD
Ee
Ie(LED) RXD-A
VIH
X
High
NV
VIL EI(IH)† Low
Low
VIL EI(IH)‡ Low
NV
VIL
EI(IL)
Low
High
X – don’t care,
NV – not valid
† _{Data rates up to 115.2 kb/s}
‡ _{Data rates > 115.2 kb/s}
RXD-B
NV
NV
Low
High
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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Copyright © 1997, Texas Instruments Incorporated
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