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HSDL-3602 Datenblatt(PDF) 3 Page - Lite-On Technology Corporation

Teilenummer HSDL-3602
Bauteilbeschribung  IrDA짰 Data 1.4 Compliant 4 Mb/s 3V Infrared Transceiver
PDF  27 Pages
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Hersteller  LITEON [Lite-On Technology Corporation]
Direct Link  http://www.liteon.com.tw/databook/default.htm
Logo LITEON - Lite-On Technology Corporation

HSDL-3602 Datenblatt(HTML) 3 Page - Lite-On Technology Corporation

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Transceiver Control Truth Table
Mode 0
Mode 1
FIR_SEL
RX Function
TX Function
1
0
X
Shutdown
Shutdown
0
0
0
SIR
Full Distance Power
0
1
0
SIR
2/3 Distance Power
1
1
0
SIR
1/3 Distance Power
0
0
1
MIR/FIR
Full Distance Power
0
1
1
MIR/FIR
2/3 Distance Power
1
1
1
MIR/FIR
1/3 Distance Power
X = Don't Care
Recommended Application Circuit Components
Component
Recommended Value
R1
2.2 Ω ± 5%, 0.5 Watt, for 2.7 ≤ VCC ≤ 3.3 V operation
2.7 Ω ± 5%, 0.5 Watt, for 3.0 ≤ VCC ≤ 3.6 V operation
CX1[5]
0.47 µF ± 20%, X7R Ceramic
CX2[6]
6.8 µF ± 20%, Tantalum
Notes:
5. CX1 must be placed within 0.7 cm of the HSDL-3602 to obtain optimum noise immunity.
6. In "HSDL-3602 Functional Block Diagram" on page 1 it is assumed that Vled and VCC share the same supply voltage and filter capacitors. In case
the 2 pins are powered by different supplies CX2 is applicable for Vled and CX1 for VCC. In environments with noisy power supplies, including
CX2 on the VCC line can enhance supply rejection performance.
Transceiver I/O Truth Table
Inputs
Outputs
Transceiver Mode
FIR_SEL
TXD
EI
LED
RXD
Active
X
1
X
On
Not Valid
Active
0
0
High[1]
Off
Low[3]
Active
1
0
High[2]
Off
Low[3]
Active
X
0
Low
Off
High
Shutdown
X
X[4]
Low
Not Valid
Not Valid
X = Don't Care EI = In-Band Infrared Intensity at detector
Notes:
1. In-Band EI ≤ 115.2 kb/s and FIR_SEL = 0.
2. In-Band EI ≥ 0.576 Mb/s and FIR_SEL = 1.
3. Logic Low is a pulsed response. The condition is maintained for duration dependent on the pattern and strength of the incident intensity.
4. To maintain low shutdown current, TXD needs to be driven high or low and not left floating.



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