Atmel ATA5283 - Manuals - manualsarea.com

Page 2 - Pin Configuration; Pinning TSSOP8L; VDD; Pin Description

2 4598H–AUTO–03/07 ATA5283 2. Pin Configuration Figure 2-1. Pinning TSSOP8L VDD 3 4 2 1 N_DATA N_WAKEUP RESET COIL 8 7 6 5 TST2 TST1 VSS Figure 2-2. Pin Description Pin Symbol Function 1 COIL Antenna coil input 2 TST1 Test pin (reserved) 3 TST2 Test pin (reserved) 4 VSS Signal ground 5 RESET Externa...

Page 3 - Functional Description; AGC Amplifier; Preamble Detection; Communication Protocol

3 4598H–AUTO–03/07 ATA5283 3. Functional Description The ATA5283 is an ultra-low power ASK receiver. Without a carrier signal it operates in thestandby listen mode. In this mode it monitors the coil input with a very low current consumption.To activate the IC and the connected control unit, the tran...

Page 4 - because of the internal regulator circuit (see; Automatic Gain Control

4 4598H–AUTO–03/07 ATA5283 3.3 Automatic Gain Control For a correct demodulation the signal conditioner needs appropriate internal signal amplitude.To control the input signal the ATA5283 has a build in digital AGC. The gain control circuit regu-lates the internal signal amplitude to the reference v...

Page 5 - Signal Conditioner; Figure; Coil

5 4598H–AUTO–03/07 ATA5283 3.4 Signal Conditioner The signal conditioner demodulates the amplifier output signal and converts it to a binary signal.It compares the carrier signal with the 50% reference level (see Ref1 in Figure 3-3 ) and delivers a logical 1, if the carrier signal stays below the re...

Page 6 - Data Output

6 4598H–AUTO–03/07 ATA5283 Figure 3-5. Turn Off Delay Time (t off ) versus Antenna Q-Factor 3.5 Data Output The data output N_DATA outputs the demodulated and digitized LF signal according to theenvelope of the antenna input signal. In the standby mode the N_DATA output is disabled andset to level 1...

Page 7 - Application

7 4598H–AUTO–03/07 ATA5283 3.8 Standby Listen Mode In the standby listen mode the IC monitors the coil input with a very low current consumption.The automatic gain control is switched off and the gain is set to the maximum value. TheN_DATA and the N_WAKEUP output are set to a high level. Before the ...

Page 8 - Coil Input Signal (mV

8 4598H–AUTO–03/07 ATA5283 Figure 3-7. Pin Connection and Pin Protection Figure 3-8. Coil Input Impedance 2 k Ω Divider impedance 143 k Ω to 5 M Ω 2 k Ω 7 VDD VDD N_WAKEUP N_DATA RESET VDD TST1 TST2 VSS COIL_X 6 VDD ATA5283 VDD VDD 1 k Ω VDD 5 8 2 3 4 1 1 100 1000 10000 10 10000 1000 100 Coil Input ...

Page 10 - Electrical Characteristics

10 4598H–AUTO–03/07 ATA5283 7. Electrical Characteristics V SS = 0V, V DD = 2V to 3.8V, T amb = –40 ° C to +105°C, characterized up to 125°C, unless other specified No. Parameters Test Conditions Pin Symbol Min. Typ. Max. Unit Type* 1 Power Supply and Coil Limiter 1.1 Power supply 8 V DD 2 3.2 3.8 V...

Page 12 - Extended Type Number; TSSOP8L; specifications; Dimensions in mm

12 4598H–AUTO–03/07 ATA5283 9. Package Information 8. Ordering Information Extended Type Number Package Remarks ATA5283P-6AQJ TSSOP8L 5000 pieces, taped and reeled, Pb-free ATA5283P-6APJ TSSOP8L 500 pieces, taped and reeled, Pb-free 3 ±0.1 0.85 ±0.05 0.1 ±0.05 specifications according to DIN technic...

Page 13 - Revision History; History

13 4598H–AUTO–03/07 ATA5283 10. Revision History Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this document. Revision No. History 4598H-AUTO-03/07 • Number 5.2.1 in section 7 “Electrical Characteristics” on page 11 added 459...

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