SBASA51 May 2020 AMC1336-Q1
PRODUCTION DATA.
- 1 Features
- 2 Applications
- 3 Description
- 4 Revision History
- 5 Pin Configuration and Functions
-
6 Specifications
- Table 1. Absolute Maximum Ratings
- Table 2. ESD Ratings
- Table 3. Recommended Operating Conditions
- Table 4. Thermal Information
- Table 5. Power Ratings
- Table 6. Insulation Specifications
- Table 7. Safety-Related Certifications
- Table 8. Safety Limiting Values
- Table 9. Electrical Characteristics
- Table 10. Switching Characteristics
- 6.1 Insulation Characteristics Curves
- 6.2 Typical Characteristics
- 7 Detailed Description
- 8 Application and Implementation
- 9 Power Supply Recommendations
- 10Layout
- 11Device and Documentation Support
- 12Mechanical, Packaging, and Orderable Information
7.3.3 Isolation Channel Signal Transmission
The AMC1336-Q1 uses an on-off keying (OOK) modulation scheme to transmit the modulator output bitstream across the capacitive SiO2-based isolation barrier. The transmitter modulates the bitstream at TX IN in Figure 43 with an internally-generated, 480-MHz carrier across the isolation barrier to represent a digital one and sends a no signal to represent the digital zero. The receiver demodulates the signal after advanced signal conditioning and produces the output. The symmetrical design of each isolation channel improves the common-mode transient immunity (CMTI) performance and reduces the radiated emissions caused by the high-frequency carrier. Figure 43 shows the block diagram of an isolation channel integrated in the AMC1336-Q1.
Figure 43. Block Diagram of an Isolation Channel Figure 44 shows the concept of the on-off keying scheme.
Figure 44. OOK-Based Modulation Scheme