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TSLM1100 IrDA COMPLIANT TRANSCEIVER
SOES034A - SEPTEMBER 1997 - REVISED OCTOBER 1997
D D D D D D D
Fully Compliant with IrDA 1.1 (4 MBPS) Compatible with ASK, HP-SIR and TV Remote No Programming Required to Switch Speeds Backward Compatible to Slower IrDA Speeds Excellent Noise Immunity Fully Supportable by all Interface Chips Designed to Compensate for Light Loss Caused by Cosmetic Windows
SRA PACKAGE (TOP VIEW)
CX1
1 2 3 4 5 6 7 8 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 TXD VIH VIL VIL VIL Ee X EI(IH) EI(IH) EI(IL) Ie(LED) High Low Low Low OUTPUTS RXD-A NV Low NV High RXD-B NV NV Low High
X - don't care, NV - not valid Data rates up to 115.2 kb/s Data rates > 115.2 kb/s
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.
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
GNDA CX4 VCC RXD-B GND TXD RXD-A CX3
Copyright (c) 1997, Texas Instruments Incorporated
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TSLM1100 IrDA COMPLIANT TRANSCEIVER
SOES034A - SEPTEMBER 1997 - REVISED OCTOBER 1997
Terminal Functions
PIN NAME CX1 GNDA CX4 VCC RXD-B GND TXD RXD-A CX3 LEDA NO. 1 2 3 4 5 6 7 8 9 10 Photodiode bypass capacitor Analog ground Averaging capacitor Supply voltage Receiver data output - Channel B Ground Transmitter data input Receiver data output - Channel A Threshold capacitor LED anode DESCRIPTION
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V LED anode voltage range, VI(LEDA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to 7 V Receiver data output voltage range: VO(RXD-A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V VO(RXD-B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5 V to VCC + 0.5 V Average LED current, II(LED)(avg): Direct current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 mA Pulsed, 90-s pulse width, 25% duty cycle . . . . . . . . . . . . . . . 165 mA Peak LED current, II(LED)(PK): 90-s pulse width, 25% duty cycle . . . . . . . . . . . . . . . . . . . . . . . . . . 660 mA 2-s pulse width, 10% duty cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 A Transmitter data input current range, II(TXD) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -12 mA to 12 mA Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20C to 85C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
CONDITIONS Supply voltage, VCC Logic high transmitter input voltage, VIH Logic low transmitter input voltage, VIL Logic high receiver input irradiance Ee(IH) irradiance, (IH) Logic low receiver input irradiance, Ee(IL) LED (logic high) Current pulse amplitude, II(LEDA) Receiver setup time Receiver signal rate, RXD-A Receiver signal rate, RXD-B Ambient light Operating temperature, TA See IrDA serial infrared physical link specification, 1.1e Appendix A for Ambient levels and Appendix B Case to ambient thermal resistance 50C/W 0 70 C For full sensitivity after transmitting 2.4 0.576 For in-band signals 116 kb/s For in-band signals 576 kb/s For in-band signals 400 MIN 4.75 4.25 0.0 0.0036 0.0090 MAX 5.25 5.25 0.3 500 500 0.3 660 1.0 116 4 UNITS V V V mW/cm2 mW/cm2 W/cm2 mA ms kb/s Mb/s
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POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
TSLM1100 IrDA COMPLIANT TRANSCEIVER
SOES034A - SEPTEMBER 1997 - REVISED OCTOBER 1997
electrical characteristics at VCC = 5 V, TA = 25C (unless otherwise noted); test conditions represent worst-case values for the parameters under test
PARAMETER RXD-A VOL Low-level Low level output voltage, receiver data voltage RXD-B TEST CONDITIONS IO = 1 mA, for in-band Ee 3.6 W/cm2, 1/2 15 IO = 1 mA, for in-band Ee 9 W/cm2, 1/2 15 IO =- 20 A, for in-band Ee 0.3 W/cm2 IO = - 20 A, for in-band Ee 0.3 W/cm2 GND VIL(TXD) 0.3 V VIH(TXD) = 4.25 V II(LED) = 400 mA at 25C VIH(TXD) = 4.25 V VI(LEDA) = VCC = 5.25 V VIL(TXD) = 0.3 V VCC = 5.25 V VI(TXD) = VIL, Ee = 0 VCC = 5.25 V VI(TXD) = VIL, Ee 500 nW/cm2 3 VCC - 0.6 V VCC - 1.2 -2 40 2 250 2.78 250 5.1 A A V A mA MIN TYP MAX 0.5 V 0.5 UNIT
RXD-A VOH High-level High level output voltage receiver data voltage, RXD-B IIL IIH vT ID(lkg) ICC1 ICC2 Low-level input current, transmitter data High-level input current, transmitter data On-state voltage LED anode OFF-state leakage current, LED anode Supply current, idle state IIL(TXD) IIH(TXD) vT(LEDA) ID(lkg)(LEDA)
Supply current, active receiver
4
18
mA
optical specifications
PARAMETER 21/2 Receiver viewing angle Effective detector area VIH(TXD) = 4.25 V II(LED) = 450 mA, 1/2 15, TA = 25C VIH(TXD) = 4.25 V II(LED) = 450 mA, 1/2 15, 0C TA 70C Transmitter peak-emission wavelength Transmitter spectral-line half-width Transmitter viewing angle Receiver peak-emission sensitivity wave length 15 880 CONDITIONS MIN 15 0.2 TYP MAX UNIT cm2
100
177
mW/sr
Ie
Transmitter radiant intensity logic high intensity,
80
177
mW/sr
p 1/2 21/2
875 35 30
nm nm nm
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
3
TSLM1100 IrDA COMPLIANT TRANSCEIVER
SOES034A - SEPTEMBER 1997 - REVISED OCTOBER 1997
switching characteristics
PARAMETER Ie(PW) (PW) Ie PW PW tL Transmitter radiant intensity pulse width Transmitter radiant intensity Pulse width Pulse width RXD-B (ASK) width, RXD B Receiver latency time RXD-A RXD-B Rise time Fall time RXD-A RXD-B TEST CONDITIONS Ie(PW)(TXD) = 1.6 s at 115.2k pulses/s Ie(PW)(TXD) = 125 ns at 2M pulses/s Ie(PW)(TXD) = 125 ns at 2M pulses/s (PW)(TXD) 1/2 = 15 500 kHz, 50% duty cycle carrier ASK kHz 1 75 0.7 07 1 0.5 05 MIN 1.5 115 TYP 1.6 125 MAX 1.8 135 40 7.5 185 1.3 13 UNIT s ns ns s ns s ms
APPLICATION INFORMATION schematic
VCC CX7 R2 10 Ie LEDA TXD 7
Ee
Pin Bias
RXD-A
8
VCC CX6 +
R3 CX5 CX1
4 2 1
Vref VCC RXD-B GNDA Adaptive Threshold and Squelch GND CX4 6 CX4 3 CX3 9 CX3 5
CX1 PARTS LIST COMPONENT R2 R3 CX1 CX3 CX4 CX5 CX6 CX7 RECOMMENDED VALUE 4.7 , 5%, 0.5 W 10 , 5%, 0.125 W 0.47 F, 10%, X7R Ceramic 4700 pF, 10%, X7R Ceramic 0.010 F, 10%, X7R Ceramic 0.47 F, 20%, X7R Ceramic 6.8 F, Tantalum 0.47 F, 20%, X7R Ceramic
CX1 and CX5 must be placed within 0.7 cm of the TSLM1100 to obtain optimum noise immunity.
4
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
TSLM1100 IrDA COMPLIANT TRANSCEIVER
SOES034A - SEPTEMBER 1997 - REVISED OCTOBER 1997
MECHANICAL DATA
SRA (R-PSIP-T8)
0.524 (13,31) 0.516 (13,11)
PLASTIC SMALL-OUTLINE PACKAGE
0.274 (6,96) 0.266 (6,76) 0.180 (4,57) 0.168 (4,27) 0.275 (6,98) 0.263 (6,68) 0.020 (0,51) 0.014 (0,35) 0.050 (1,27)
0.636 (16,15) 0.616 (15,65) 0.055 (1,39) 0.039 (0,99)
0.075 (1,91) 0.059 (1,50) 4153800/A 06/97 NOTES: A. All linear dimensions are in inches (millimeters). B. This drawing is subject to change without notice.
POST OFFICE BOX 655303
* DALLAS, TEXAS 75265
5
IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability. TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK. In order to minimize risks associated with the customer's applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards. TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI's publication of information regarding any third party's products or services does not constitute TI's approval, warranty or endorsement thereof.
Copyright (c) 1998, Texas Instruments Incorporated

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