5 Reference Circuit

The IS1870/IS1871 application circuit includes RF, PMU and GPIO circuit. In the RF section, the antenna matching circuit depends on the user’s dedicated antenna components. Use the listed test points (include RF test point) for the mass production test. The following figures illustrate the IS1870 and IS1871 reference circuit block diagram.
Figure 5-1. IS1870 Reference Circuit Block Diagram
Figure 5-2. IS1871 Reference Circuit Block Diagram