About the selection of PN7120 and PN7150

[2472892628]

第一点：PN7120是被动模式，PN7150是主动模式，不太能明白负载调试中主动模式和被动模式的区别？

First point: PN7120 is passive mode, PN7150 is active mode, can not understand the difference between active mode and passive mode in load debugging?

第二点：希望作为主设备去读取无源标签，在PN7120和PN7150中如何选择？

Second point: if you want to read passive tags as the primary device, how do you choose between PN7120 and PN7150?

第三点：读取距离大概0.5m，是否能够读取多张标签？

Third point: the reading distance is about 0.5m. Can multiple labels be read?

[Jonathan_Iglesias]

Hi

1.- do you mean the passive and active load modulation ? if so, this allow decreasing antenna size with same RF performance in card emulation and passive target modes.

2.- for any new designs  we recommend using the PN7150, you can see this recommendation in the PN7120 webpage PN7120 |NFC controller with flexible host interface for Home appliances | NXP 

3.- you can read multiple tags the amount of tags can depend on the type of cards for example t2t require less power so you can power more cards than t4t. also this is limited to the power provided by the reader, usually the libraries are fixed to select one tag.

Have a great day !

BR

Jonathan