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SIDE VIEW IRMS6452/TOP VIEW IRMT6452 4 Mb/s Infrared Data Transceiver
Preliminary
Dimensions in inches (mm)
C .116 L .106 (2.95) (2.70)
E D
.157 (4.00)
.190 (4.83) PIN 1
PIN 1
E=Emitter D=Detector
.138 (3.50) .374 (9.86)
IRMS6452
IRMT6452
Absolute Maximum Ratings, TA=25C (except where noted) Supply Voltage Range, all states, VCC ............................... -0.5 to +5.5 V Storage Temperature, TSTG ................................................. -25 to +85C Ambient Temperature, operating, TA ................................... -25 to +75C Lead Solder Temperature, .................................................... 240C<10 s IC Junction Temperature, TJ ............................................................125C Average IR LED Current, DC, ILED ............................................... 100 mA Repetitive Pulsed IR LED Current, <90 s, ton <25%, ILED(RP)...................................................... 710 mA Transmit Data Input Voltage, VTxD .............................. -0.5 to VCC + 0.5 V Receive Data Output Voltage, VRxD ........................... -0.5 to VCC + 0.5 V
Pin Number 1 2 3 4 5 6 7 8 Symbol LEDA LEDC TxD RxD SD/ Mode VCC NC GND Description LED Anode LED Cathode Transmit Data Receive Data Shutdown/ Mode Select Positive Supply (Power) GND Ground
Features * IrDA, HP-SIR, Local Talk and Sharp ASK * Ultracompact package: * H 4.0 mm x D 4.8 mm x L 9.8 mm * Data rates from 9.6 Kbit/s to 4 Mbit/s * Supply voltage 2.7 V to 5.25 V * Power Shutdown mode (<100 nA) * Low power consumption - 1.7 mA (typ) @ 2.7 V - 3.2 mA (typ) @ 5.0 V * Zero external resistors required Description Responding to the volumetric constraints of today's ultra-compact and power conscious portable products, Vishay has developed the next generation in infrared wireless communication transceivers. The transceiver has been designed to support up to 4 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.
Document Number: 82579 Revision 05-July-02
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Table 1. Input/Output Functional Description
Symbol RxD I/O Type Output Polarity Active Low Function 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. RxD is high at initializaton. This CMOS input is used to transmit serial data when SD/ Mode is low. An on-chip protection circuit disables the LED driver if the TxDpin is asserted for longer than 60 s. When used in conjunction with the SD/ Mode pin. TxD is low at initializaton. Assertion of this pin high for a period of time exceeding 400 s places the module into shutdown mode. On the falling edge of this signal, the state of the TxDpin is sampled and used to set receiver low bandwidth (TxD= Low) or high bandwidth (TxD= High) mode. See Figures 7 and 8 for timings. SD is low at initializaton Connect to positive power supply (2.7 V to 5.25 V). Placement of a 1.0 F to 10.0 F decoupling ceramic capacitor as close as possible to the V CC pin is recommended. Connect to power supply ground. A solid ground plane is recommended. This pin could be connected to ground. This pin can be connected directly to VCC. No series resistor is required. LED cathode. Leave this pin unconnected. This pin may be monitored to determine the state of the LED.
TxD
Input
Active High Active High
SD/ Mode Input
VCC
GND NC LEDA LEDC
Positive Supply Ground (Power) No Connect Input Output
-
Figure 1. Block Diagram
VCC
Figure 2. Minimum Vishay Low-Power Integrated Infrared Transceiver Circuit Diagram
VCC
C1= 1 F to 10 F
Amp
Comp
Driver
RxD VCC LEDA
IR Controller
IRTX GPO
VCC LEDA LEDC NC TxD
SD/Mode TxD
Mode & Power Control
IRMS6452
SD/ Mode RxD
Driver
LEDC
IRRX GND
GND
Table 2. Recommended Operating Conditions
Symbol VCC TA Parameter Supply Voltage Ambient Operating Temperature Min 2.7 -25 Typical Max 5.25 75 Unit V C Conditions
Table 3. DC Electrical Characteristics
Symbol ICC ICC ISD Parameter Supply Current; Listening Supply Current; Receiving Supply Current; Shutdown Min 2.0 Typical 3.2 3.8 50 Max 4.5 15 100 Unit mA mA nA Conditions Typical value obtained at Vcc=5 V Interface and optical input power dependent VSD=VCC
Table 4. Receiver DC Electrical Characteristics
Symbol VOL IOL VOH IOH RL CL Parameter RxD Output Low Voltage Static Sink Current on RxD RxD Output High Voltage Static Source Current on RxD RxD Rosistive Load RxD Capacitive Load 2.2 50 Vcc-0.5 2.4 Min Typical Max 0.5 2.4 Unit V mA V mA k pF
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Conditions 2.2K load. 2.2K load.
Document Number: 82579 Revision 05-July-02
Table 5. Transmitter DC Electrical Characteristics
Symbol VIL VIH Ci Parameter TxD Input Voltage Low TxD Input Voltage High Input Capacitance 2.4 5 Min Typical Max 0.8 Unit V V pF Conditions
Table 6. SD/Mode DC Electrical Characteristics
Symbol VIL VIH Ci Parameter SD/ Mode Input Voltage Low SD/ Mode Input Voltage High Input Capacitance 2.4 5 Min Typical Max 0.8 Unit V V pF Conditions
Table 7. Optical Characteristics
Symbol Emin Emin Emin tr,tf txpw txpw txpw Ie aA p Parameter Minimum Detection Irradiance 9.6-115.2 kbit/s, SIR Minimum Detection Irradiance 1.152Mbit/s, MIR Minimum Detection Irradiance 4 Mbit/s, FIR LED Optical Rise/Fall Time SIR Optical Pulse Width MIR Optical Pulse Width FIR Optical Pulse Width Output Radiant Intensity Output Radiant Half Intensity Angle Peak Wavelength Optical Overshoot 1.41 147 115 110 15 850 870 900 25 200 Min Typical 3.7 4 7.9 9 40 22.13 261 140 400 Max 4 Unit W/ cm2 W/ cm2 W/ cm2 ns s ns ns mW/sr nm % TxD Input Pulse Width = 3/16 duty cycle TxD Input Pulse Width = 217ns TxD Input Pulse Width = 125ns TxD=High, SD/Mode=Low, VCC=3.3 V, = 15, TA=25C, TX@2MHz and 25% Conditions 9.6 kbit/s to 115.2 kbit/s 1.152 Mbit/s 4 Mbit/s
Table 8. AC Electrical Characteristics
Symbol tr tf tSU,tH tw tw tw tw tL tRxDEN tLEDP ILED ILED Parameter RxD Rise Time RxD Fall Time TxDSetup and Hold to SD/ Mode Falling Edge RxD Pulse Width (SIR) RxD Pulse Width (4Mbit/s, single pulse) RxD Pulse Width (4Mbit/s, double pulse) Receiver Latency RxD Valid After Shutdown LED Protection Time-out Peak Transmit Current Average Transmit Current 10 5 10 1.0 80 210 2.1 600 165 290 100 200 100 710 150 Min Typical Max 60 50 Unit ns ns ns s ns ns ns s s s mA mA 25% duty cycle 25% duty cycle Conditions RL=2.2 K, CL=50 pF RL=2.2 K, CL=50 pF
RxD Pulse Width (1.152Mbit/s) 100
Document Number: 82579 Revision 05-July-02
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Figure 3. Timing Diagrams Latency Timing
V IH
RxD Valid after Shutdown
V IH
TxD
50% V IL tL V OH
SD/ Mode
50% V IL
t RXEN
50% V OL
VOH 50% VOL
RxD
RxD
LED Protection Timing
V IH
RxD Timing 1.2 and 4 Mbit/s Mode
tW
TxD
50% V IL t LED P
VOH 50% V OL
RxD
LEDC
50%
RxD Timing, SIR mode. The output may be indeterminate in the shaded area. Spurious transitions may occur.
tW ( m i n ) tW ( m a x )
RxD Rise and Fall Timing Measurements
tP H L tP L H
VO H
90%
VO H
RxD
50%
50% VO L
RxD
10% V OL
Figure 4. Bandwidth Programming Setting the Receiver to High BW Mode (FIR)
V IH
Setting the Receiver to Low BW Mode (SIR & MIR)
V IH
SD/ Mode
50% V IL
SD/ Mode
50% V IL
tSU TxD
(Setting high bandwidth mode)
tH
V IH 50% V IL
tSU
tH
50%
TxD
(Setting low bandwidth mode)
50%
50% V IL
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 SD/ Mode and the TxD inputs. Note that the internal LED driver is disabled when SD/ Mode is active and is not enabled until the next rising edge of TxD. This ensures that the LED will not be active during bandwidth adjustment. It is recommended that the SD/ Mode pin be connected to GND if bandwidth adjustment and shutdown mode are not used. Setting the Receiver to High Bandwidth Mode (see Figure 4) 1. Set the SD/ Mode input to 'logic high'. 2. Set the TxD input to 'logic high'. Wait tsu 10 ns. 3. Set the SD/ Mode to 'logic low'. (This high-to-low transition latches the state of TxD, which determines the receiver bandwidth.)
Document Number: 82579 Revision 05-July-02
4. After waiting th 10 ns, set the TxDinput to 'logic low'. The receiver is in high bandwidth mode within 200 s of the SD/ Mode rising edge or 10 ns after the SD/ Mode falling edge, whichever occurs later. Setting the Receiver to Low Bandwidth Mode (see Figure 4) 1. Set the SD/ Mode input to 'logic high'. 2. Ensure that the TxD input is at 'logic low'. Wait tsu 10 ns. 3. Set the SD/ Mode to 'logic low'. (This high-to-low transition latches the state of TxD, which determines the receiver bandwidth.) 4. Ensure that the TxD input remains low for th 10 ns. The receiver is in low bandwidth mode within 200 s of the SD/ Mode rising edge or 10 ns after the SD/ Mode falling edge, whichever occurs later.
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Figure 5. Infrared Reflow Soldering Profile
240 220 200 180 160 140 120 100 80 60 40 20 0 0
14874
10 s max. @ 230C
Temperature ( C )
2C - 4C/s
120 s - 180 s
90 s max
2C - 4C/s
50
100
150 200 250 Time ( s )
300
350
Figure 6. Super I/O (PC87338VLJ) to IRMS6452/IRMT6452
VCC 0.1 F 22 F
Figure 8. Super I/O (PC87338VLJ) to IRMS6452/IRMT6452 with independent VLED power supply
VCC VLED
R0
R0
50 VCC IR TxD 65 3
1 6 LED VCC Anode TxD IRMX6452
C1=0.1 F C2=10 F 50 VCC IR TxD 65 PC87338VLJ IR RxD 67 4
C3=0.1 F 1 6 VCC LED Anode 3 TxD IRMX6452 RxD SD 5 GND 8
C4=22 F
PC87338VLJ IR RxD 67 4 RxD SD GND 8 5
GND VSS 42
GND
VSS 42
IR SLO
68
IR SLO 68
Table 9. Recommended RO values for different VLED Figure 7. Ultra I/O controller with fast IR (FDC37C93xFR) to IRMS6452/IRMT6452
VCC 0.1 F 22 F
Parameter VLED power supply Resistor
R0
Values 2.7 0 3 1.8 3.3 4.7 >3.5 6.8
Unit V
Table 10. Slimline IRMS64XX Truth Table
Inputs Outputs VCC 2.4 to 5.5 V 2.4 to 5.5 V 2.4 to 5.5 V 2.4 to 5.5 V 2.4 to 5.5 V 2.4 to 5.5 V Low RxD X=don't care state High Low <0.4 W/cm2 (115 Kb/s) <1.0 W/cm2 (1 & 4 Mb/s) <4.0 W/cm2 (115 Kb/s) <10.0 W/cm2 (1 & 4 Mb/s) Low Off High Detector X=don't care state RxD LED Off On Off SD High Low
125 VCC IR TxD 99 3
1 6 LED VCC Anode TxD IRMX6452
FDC37C93XFR IR RxD 98 4 RxD SD GND 5 8
GND
GND IR MODE 130
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Document Number: 82579 Revision 05-July-02
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Table 11. Ordering Information
Part Number IRMS6452 Description PCB Mounting Orientation Integrated Packaged in Transceiver Component Carrier Reel --Side View (1000/reel) for Side View Mounting on PCB
Figure 9. Reel Dimensions in Inches (mm)
Matte finish these areas
0.512+0.020 0.79 -0.008 (20.2) Min. 13.0 + 0.5 - 0.2 12.97 (330.0) Ref. 4.01 (102.0) Ref. 0.0790.020 (2.0 0.5)
X
IRMT6452
Integrated Transceiver --Top View
Packaged in Component Carrier Reel (1000/reel) for Top View Mounting on PCB
Detail A
Tape Leader and Trailer is 400 mm minimum.
See detail A W1 (Measured at hub) W2 (Measured at hub)
16.4 mm (+2 mm/-0 mm) 22.4 mm (Max)
Figure 10. Tape Dimensions in Inches (mm)
.315.004 (8.00.10) .059+.004 (1.50+.10) .157.004 (4.000.10) .079.004 (2.00.10) .069.004 (1.75.010) 4 Max.
.295.004 (7.500.10) .630 +.012 -.004 16.0 +.30 -.10 Pin 1 1.50+.25 (.059+.010) .0140.0005 (.356.013) 8 Max. .167.004 (4.23.10) Ao .199.004 (5.06 .10) Ko .401.004 Bo (10.19.10)
IRMT6452 (top view)
Feed direction
.315.004 (8.00.10)
.059+.004 (1.50+.10) .157.004 (4.000.10)
.079.004 (2.00.10) .069.004 (1.75.010) 4 Max.
.295.004 (7.500.10) .630 +.012 -.004 16.0 +.30 -.10 Pin 1 1.50+.25 (.059+.010)
.216 (5.48)
.400.004 Bo (10.16.10)
IRMS6452 (side view)
Feed direction
.156 (3.97)
.0130.0005 (.330.013) 8 Max. .185.004 Ao (4.70.10)
.167.004 (4.23 .10) Ko
Document Number: 82579 Revision 05-July-02
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Figure 11. IRMS6452/IRMT6452 detail drawings with optional side view or top view mounting
Dimensions in inches (mm)--All dimensions have tolerances of 0.004" (0.1 mm)
.197 (5.00) .165 (4.20) .053 (1.35) .167 .051 (4.23) (1.30) .004 (.10) .190 (4.83) 1" Draft pick and place .079 (2.00) .028 (.70) Typ. .039 (1.00) Typ.
.333 (7.71) 12345678
Recommended PCB footprint TOP VIEW
.065 (1.65)
C L
Front pick and place 5 4X .157 (4.00)
.012 (.28)
5 4X .069 (1.74) .051 (1.30)
.134 (3.40)
.67 (1.70)
E
D
.079 (2.00)
Pin 1
.030 (0.75) 90 to 93 .053 (1.35)
.008 (.20) Coplaner .0059 (0.15)
.016 (0.40) Typ.
.116 (2.95) C L
.106 (2.70) .014 (.36) .388 (9.86) Max.
Pin 1 1 Draft (2 Plcs) .027 (0.69) .020 .039 (0.51) (1.00) .138 (3.50) .378 (9.60) 5 4X For high EMI environment application the IRMS6400 and IRMT6400 modules are available with a metal can shield. The metal shielded modules are designated as IRMS6409 and IRMT6409 respectively.
6452 6400RYYWW
Vishay 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 Vishay without notice. Some of the parametric data expressed in this preliminary data sheet is considered to be functional by design. Vishay 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 Vishay 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 MERCHANTABILITY OF FITNESS FOR A PARTICULAR PURPOSE, ARE OFFERED IN THIS DOCUMENT.
(c) Vishay Infrared Components, Inc. Printed in the United States of America. All rights reserved.Vishay The information provided is believed to be accurate and reliable. Document Number: 82579 Revision 05-July-02
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