Si87xxSOIC8-KIT Silicon Labs, Si87xxSOIC8-KIT Datasheet - Page 12

• Manufacturer Part Number: Si87xxSOIC8-KIT
• Description: Interface Development Tools SOIC8 Evaluation Kit
• Manufacturer: Silicon Labs
• Type: Isolatorsr

Specifications of Si87xxSOIC8-KIT

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: SI87xxSOIC8

Si87xx
2. Application Information
2.1. Theory of Operation
The Si87xx are pin-compatible, one-channel, drop-in replacements for popular optocouplers with data rates up to
15 Mbps. The operation of an Si87xx channel is analogous to that of an opto coupler, except an RF carrier is
modulated instead of light. This simple architecture provides a robust isolated data path and requires no special
considerations or initialization at start-up. A simplified block diagram for the Si87xx is shown in Figure 5.
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A
Transmitter
Emulator
LED
OSCILLATOR
MODULATOR
Figure 5. Simplified Channel Diagram
RF
Semiconductor-
Based Isolation
Preliminary Rev. 0.5
Barrier
DEMODULATOR
Receiver
Open Collector
Output Stage
B