Datenblatt-Suchmaschine für elektronische Bauteile |
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FDC37C669FR Datenblatt(PDF) 4 Page - Agilent(Hewlett-Packard) |
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FDC37C669FR Datenblatt(HTML) 4 Page - Agilent(Hewlett-Packard) |
4 / 25 page 3 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 3 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. |
Ähnliche Teilenummer - FDC37C669FR |
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Ähnliche Beschreibung - FDC37C669FR |
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