SIDE VIEW IRMS Mb/s Infrared Data Transceiver

Transcription

1 SIDE VIEW IRMS6 Mb/s Infrared Data Transceiver Preliminary Dimensions in inches Features IrDA, HP-SIR, Local Talk and Sharp ASK Ultracompact package: H.0 mm x D.8 mm x L 9.8 mm Data rates from 9600 bit/s to Mbit/s Supply voltage 2.7 V to.2 V Power Shutdown mode (<100 na) Low power consumption 1.7 ma 2.7 V.2 ma V Zero external resistors required Description Responding to the volumetric constraints of today s ultra-compact and power conscious portable products, Infineon has developed the next generation in infrared wireless communication transceivers. The transceiver has been designed to support up to Mbit/s IrDA, HP-SIR, Local Talk and Sharp ASK modes. The device combines an LED, photodiode, LED driver and a fully differential receiver into a single integrated package. Absolute Maximum Ratings, T A =2 C (except where noted) Supply Voltage Range, all states, to +. V Storage Temperature, T STG... 2 to +8 C Ambient Temperature, operating, T A... 2 to +7 C Lead Solder Temperature, C<10 s IC Junction Temperature, T J C Average IR LED Current, DC, I LED ma Repetitive Pulsed IR LED Current, <90 µs, ton <2%, I LED (RP) ma Transmit Data Input Voltage, V to + 0. V Receive Data Output Voltage, V to + 0. V Pin Number Symbol Description 1 LEDA LED Anode 2 LEDC LED Cathode Transmit Data Receive Data Shutdown/ Mode Select 6 Positive Supply (Power) 7 NC No Connect* 8 Ground * Pin 7 internally grounded 2000 Infineon Technologies Corp. Optoelectronics Division San Jose, CA 1

2 Table 1. Input/Output Functional Description Symbol I/O Type Polarity Function Output Active Low Input Active High Input Active High This output indicates received serial data. It is a push-pull CMOS driver capable of driving a standard CMOS or TTL load. No external pull-up or pull-down resistor is required. This output may switch indeterminately when the module is transmitting. This output pin is in tri-state mode when the module is in shutdown mode and during digital serial programming operations. is high at initializaton. This CMOS input is used to transmit serial data when is low. An on-chip protection circuit disables the LED driver if the pin is asserted for longer than 60 µs. When used in conjunction with the pin. is low at initializaton. Assertion of this pin high for a period of time exceeding 00 µs places the module into shutdown mode. On the falling edge of this signal, the state of the pin is sampled and used to set receiver low bandwidth (= Low) or high bandwidth (= High) mode. See Figures 7 and 8 for timings. SD is low at initializaton Positive Supply - Connect to positive power supply (2.7 V to.2 V). Placement of a 1.0 µf to 10.0 µf decoupling ceramic capacitor as close as possible to the pin is recommended. Ground (Power) - Connect to power supply ground. A solid ground plane is recommended. NC No Connect - This pin could be connected to ground. L EDA Input - This pin can be connected directly to. No series resistor is required. L EDC Output - LED cathode. Leave this pin unconnected. This pin may be monitored to determine the state of the LED. Figure 1. Block Diagram Figure 2. Minimum Infineon Low-Power Integrated Infrared Transceiver Circuit Diagram VCC C1 = 1 µf to 10 µf Amp Mode & Power Control Comp Driver Driver LEDA LEDC IR Controller IRTX GPO IRRX V CC LEDA LEDC NC IRMS6 IRMS62 Table 2. Recommended Operating Conditions Supply Voltage V T A Ambient Operating Temperature Table. DC Electrical Characteristics -2 7 C I CC Supply Current; Listening ma Typical value obtained at Vcc= V I CC Supply Current; Receiving.8 1 ma Interface and optical input power dependent I SD Supply Current; Shutdown na V SD = Table. Receiver DC Electrical Characteristics Output Low Voltage 0. V I OL Static Sink Current on 2. ma 2.2KΩ load. Output High Voltage Vcc-0. V I OH Static Source Current on 2. ma 2.2KΩ load. 2

3 RL Rosistive Load 2.2 kω C L Capacitive Load 0 pf Table. Transmitter DC Electrical Characteristics Input Voltage Low 0.8 V Input Voltage High 2. V C i Input Capacitance pf Table 6. SD/Mode DC Electrical Characteristics Input Voltage Low 0.8 V Input Voltage High 2. V C i Input Capacitance pf Table 7. Optical Characteristics E min Minimum Detection Irradiance.7 µw/ 9.6 kbit/s to 11.2 kbit/s kbit/s, SIR cm 2 E min E min Minimum Detection Irradiance 1.12Mbit/s, MIR Minimum Detection Irradiance Mbit/s, FIR µw/ cm µw/ cm Mbit/s Mbit/s t r,t f LED Optical Rise/Fall Time 0 ns t xpw SIR Optical Pulse Width µs Input Pulse Width = /16 duty cycle t xpw MIR Optical Pulse Width ns Input Pulse Width = 217ns t xpw FIR Optical Pulse Width ns Input Pulse Width = 12ns I e Output Radiant Intensity mw/sr =High, SD/Mode=Low, =. V, α = ±1, T A =2 C, TX@2MHz and 2% aå Output Radiant Half Intensity ±1 Angle λ p Peak Wavelength nm Optical Overshoot 2 % Table 8. AC Electrical Characteristics t r Rise Time 60 ns R L =2.2 K, C L =0 pf t f Fall Time 0 ns R L =2.2 K, C L =0 pf t SU,t H Setup and Hold to 10 ns Falling Edge t w Pulse Width (SIR) µs t w Pulse Width (1.12Mbit/s) ns t w Pulse Width ns (Mbit/s, single pulse) t w Pulse Width ns (Mbit/s, double pulse) t L Receiver Latency 100 µs t EN Valid After Shutdown 200 µs t LEDP LED Protection Time-out 100 µs I LED Peak Transmit Current ma 2% duty cycle I LED Average Transmit Current 10 ma 2% duty cycle

4 Figure. Timing Diagrams Latency Timing Valid after Shutdown t L t RXEN LED Protection Timing Timing 1.2 and Mbit/s Mode t W t LEDP LEDC Timing, SIR mode. The output may be indeterminate in the shaded area. Spurious transitions may occur. Rise and Fall Timing Measurements t W(min) t W(max) t PHL t PLH 10% 90% Figure. Bandwidth Programming Setting the Receiver to High BW Mode (FIR) Setting the Receiver to Low BW Mode (SIR & MIR) tsu th tsu th (Setting high bandwidth mode) (Setting low bandwidth mode) The transceiver powers on with the receiver in low bandwidth mode. To enable high bandwidth mode, apply timings as shown in the figure 7, to the and the inputs. Note that the internal LED driver is disabled when is active and is not enabled until the next rising edge of. This ensures that the LED will not be active during bandwidth adjustment. It is recommended that the pin be connected to if bandwidth adjustment and shutdown mode are not used. Setting the Receiver to High Bandwidth Mode (see Figure ) 1. Set the input to logic high. 2. Set the input to logic high. Wait t su 10 ns.. Set the to logic low. (This high-to-low transition latches the state of, which determines the receiver bandwidth.). After waiting t h 10 ns, set the input to logic low. The receiver is in high bandwidth mode within 200 µs of the SD/ Mode rising edge or 10 ns after the falling edge, whichever occurs later. Setting the Receiver to Low Bandwidth Mode (see Figure ) 1. Set the input to logic high. 2. Ensure that the input is at logic low. Wait t su 10 ns.. Set the to logic low. (This high-to-low transition latches the state of, which determines the receiver bandwidth.). Ensure that the input remains low for t h 10 ns. The receiver is in low bandwidth mode within 200 µs of the SD/ Mode rising edge or 10 ns after the falling edge, whichever occurs later.

5 Figure. Infrared Reflow Soldering Profile 00 Temperature ( C) Maximum 20(+/ 0) C 210 C 0 s minimum0 s maximum 0 60 s minimum Note: Peak temperature is 20 (+ 0) C for less than 10 seconds. Time (sec) Figure 6. Super I/O (PC878VLJ) to IRMS6 Figure 8. Super I/O (PC878VLJ) to IRMS6 with independent V LED power supply V LED 0.1 µf 22 µf 0 IR 6 PC878VLJ IR 67 V SS IR SLO LED Anode IRMS6 IRMX62 SD R 0 8 C 1 =0.1 µf C 2 =10 µf 0 IR 6 PC878VLJ 67 IR IR SLO 68 V SS 2 6 SD R 0 1 LED Anode IRMS6 IRMX62 8 C =0.1 µf C =22 µf Figure 7. Ultra I/O controller with fast IR (FDC7C9xFR) to IRMS6 Table 9. Recommended R O values for different V LED Parameter Values Unit V LED power supply 2.7. >. V Resistor Ω 0.1 µf 22 µf 12 IR 99 FDC7C9XFR IR 98 IR MODE LED Anode IRMS6 IRMX62 SD R 0 8 Table 10. Slimline IRMS6XX Truth Table Inputs Outputs SD Detector LED High 2. to. V X=don t care state X=don t care state Low 2. to. V High On 2. to. V Low <0. µw/cm 2 High Off (11 Kb/s) 2. to. V <1.0 µw/cm 2 (1 & Mb/s) 2. to. V Low <.0 µw/cm 2 Low Off (11 Kb/s) 2. to. V <10.0 µw/cm 2 (1 & Mb/s) Off

6 Table 11. Ordering Information Part Number IRMS6 Description PCB Mounting Orientation Integrated Transceiver Side View Packaged in Component Carrier Reel (1000/reel) for Side View Mounting on PCB Tape Leader and Trailer is 00 mm minimum. Figure 9. Reel Dimensions in Inches (mm) (0.0) Ref. Matte finish these areas X.01 (102.0) Ref (20.2) Min. Detail A ±0.020 (2.0 ± 0.) See detail A W1 (Measured at hub) W2 (Measured at hub) 16. mm (+2 mm/ 0 mm) 22. mm (Max) Figure 10. Tape Dimensions in Inches (mm) IRMT ± ± ±.10 ø 1.0 ± ± _ ± ± MAX MAX.76 ± ± ±0.10 6

7 Figure 11. IRMS6 detail drawings with optional side view or top view mounting Dimensions in inches (mm) All dimensions have tolerances of ±0.00 (±0.1 mm) TOP VIEW TYP TYP FRONT VIEW RIGHT SIDE VIEW BACK VIEW COPLANER TO Infineon Technologies, Corp., Optoelectronic Division (formerly Siemens Microelectronics, Inc.) Printed in the United States of America. All rights reserved. The information provided is believed to be accurate and reliable. Infineon reserves the right to make changes to the product described without notice. No liability is assumed as a result of its use nor for any infringement of the rights of others. This document may contain preliminary information and is subject to change by Infineon without notice. Some of the parametric data expressed in this preliminary data sheet is considered to be functional by design. Infineon assumes no responsibility or liability for any use of the information contained herein. Nothing in this document shall operate as an express or implied license or indemnity under the intellectual property rights of Infineon or third parties. The products described in this document are not intended for use in implantation or other direct life support applications where malfunction may result in the direct physical harm or injury to persons. NO WARRANTIES OF ANY KIND, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANT- ABILITY OF FITNESS FOR A PARTICULAR PURPOSE, ARE OFFERED IN THIS DOCUMENT. 7