SI8605 Datasheet, PDF (9/40 Pages) Silicon Laboratories – BIDIRECTIONAL IC ISOLATORS WITH UNIDIRECTIONAL DIGITAL CHANNELS

1.1. Test Circuits
Figure 2 depicts the timing test diagram; Figure 3 depicts the CMTI test diagram.
R₁
R₁
AVDD
NC
BVDD
NC
R₂ R₂
ASDA
BSDA
ADIN
BDOUT
ADOUT
BDIN
ASCL
BSCL
NC
NC
C₁
C₁
C₃
AGND
BGND
C₃
C₂
C₂
Si8605
Figure 2. Simplified Timing Test Diagram
Si860x
Input
Signal
Switch
3 to 5 V
Isolated
Supply
Si86xx
AVDD
BVDD
INPUT OUTPUT
3 to 5 V
Supply
Oscilloscope
Isolated
Ground
AGND
BGND
Vcm Surge
Output
High Voltage
Surge Generator
Input
High Voltage
Differential
Probe
Output
Figure 3. Common Mode Transient Immunity Test Circuit
Rev. 1.4
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