User's Manual
Table Of Contents
- RF Exposure Statement:
- Copyright
- Contents
- Table Index
- Figure Index
- Revision History
- 1Introduction
- 2Package Information
- 3Interface Application
- 4RF Specifications
- 5Electrical Specifications
- 6SMT Production Guide
- 7Packaging
- Appendix
A7608SA-H_User Manual_V1.00
2022-08-26
Smart Machine Smart Decision
Figure 25: SD reference circuit
SD card layout guide lines:
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Protect other sensitive signals/circuits from SD card signals.
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Protect SD card signals from noisy signals (clocks, SMPS, etc.).
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Up to 200 MHz clock rate, 50 Ω nominal, ±10% trace impedance
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CLK to DATA/CMD length matching < 1 mm
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15–24 Ω termination resistor on clock lines near module
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Total routing length < 50 mm recommended
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Routing distance from module clock pin to termination resistor < 5 mm
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Spacing to all other signals = 2x line width
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Bus capacitance < 15 pF
3.8 I2C Interface
A7608SA-H provides a I2C interface compatible with I2C specification, version 5.0, with clock
rate up to 400 kbps. Its operation voltage is 1.8V.
The following figure shows the I2C bus reference design.