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ATA5279 Datasheet(PDF) 7 Page - ATMEL Corporation |
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ATA5279 Datasheet(HTML) 7 Page - ATMEL Corporation |
7 / 37 page 7 ATA5279/ATA5279C [DATASHEET] 9125P–RKE–05/14 3.2.1 Driver Stage The return line stage is built by an open drain NMOS equipped with a free wheel diode. In parallel to the diode there is a pull- up resistance to terminate the inactive antenna coils. Figure 3-2. Principle Return Line Stage Similar to the driver stage the components within the grey area describe the functionality in diagnosis mode. Table 3-1. States of Driver Outputs within Operation Modes Mode Operation/ Transmission Mode Entering by SPI cmd Shutdown Mode Fault has detected Idle Mode Entering by S_CS Power Down/Reset Entering by NRES or POC Diagnosis Mode Entering by SPI Output AxP Selected driver active others are on High Level (VDS) All high impedance Selected driver stays on VDS/2 ready for Operation Others are on High Level High impedance High impedance (Diagnosis current sources programmable) AxN Selected driver stays onlowlevel Others are on High Level All high impedance Selected driver stays onlowlevel Others are on High Level High impedance High impedance (Diagnosis current sources programmable) AxN AxN_State Diag Enable VDS IHSDiag Diag Enable ILSDiag GND VSHF 100kΩ |
Similar Part No. - ATA5279_14 |
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Similar Description - ATA5279_14 |
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