 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
OM25180FDKM Datasheet(PDF) 77 Page - NXP Semiconductors |
|
|
|||||||||||||||||||||||||||||
OM25180FDKM Datasheet(HTML) 77 Page - NXP Semiconductors |
|
|
77 / 149 page  PN5180 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2016. All rights reserved. Product data sheet COMPANY PUBLIC Rev. 3.0 — 7 October 2016 240930 77 of 149 NXP Semiconductors PN5180 High-performance multi-protocol full NFC Forum-compliant frontend First the standby phase is controlled by the wake-up counter (timing defined in the instruction), which defines the duration of the standby of the PN5180. Second phase is the detection-phase. The RF field is switched on for a defined time (EEPROM configuration) and then the AGC value is compared to a reference value. • If the AGC value exceeds the reference value, a LPCD_IRQ is raised to the host. The register configurations done by the host are not restored after wake-up. command. The host has to configure the NFC frontend for a dedicated protocol operation to allow a polling for a card. • If the AGC value does not exceed the limit of the reference value, no LPC_IRQ is raised and the IC is set to the first phase (standby mode) again. As an additional feature the GPO1 (general-purpose output) pin can be enabled to wake-up an external LDO from power down for the TVDD supply. The GPO1 allows setting to high before the transmitter is switched on. This allows the wake-up of an external LDO from power down. The GPO1 can be set to low after the RF field is switched off to set an external LDO into power-down mode. The time of toggling the GPO in relation to the RF-on and RF-off timings can be configured in EEPROM addresses 0x39 and 0x3A. These two phases are executed in a loop until 1. Card / metal is detected (LPCD_IRQ is raised). 2. Reset occurs, which resets all the system configurations. The LPCD is also stopped in this case. 3. NSS on Host IF 4. RF Level Detected The behavior of the generated field is different dependent on the activation state of the DPC function: • If the DPC feature is not active, the ISO/IEC14443 type A 106 kbit/s settings are used during the sensing time. • If the DPC is active, the RF_ON command is executed. The RF field is switched on as soon as the timer configured by the SWITCH_MODE command elapses. The RF field is switched on for a duration as defined for an activated DPC. The timer for the LPCD_FIELD_ON_TIME starts to count as soon as the RF_ON command terminates. |
Similar Part No. - OM25180FDKM |
|
Similar Description - OM25180FDKM |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
