Instruction/ maintenance manual of the product ATA5283 Atmel
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Features • W ake-up Function for a Microcontr oller with Preamble Detection • 1m V rms Sensitivity • 1 µA Standby Current • P ower Supply: 2V to 3.8V • Baud Rate: up to 4 kb ps (ASK Modulation) • Operation T emperature: up to 125°C • Withstan ds +175°C • Few External Components Application • Tire Pressure Mo nitoring (TPM) 1.
2 4598H–AUTO–03/07 ATA5283 2. Pin Configuration Figure 2-1. Pinning TSSOP8 L VDD 3 4 2 1 N_DATA N_WAKEUP RESET COIL 8 7 6 5 TST2 TST1 VSS Figure 2-2.
3 4598H–AUTO–03/07 ATA5283 3. Functional Description The ATA5283 is an ultra-low pow er ASK receiver. Without a carr ier signal it operates in the standby listen mode.
4 4598H–AUTO–03/07 ATA5283 3.3 A utomatic Gain Control For a correct demodulation the signal conditione r needs appropriate interna l signal amplitude. To control the in put signal the ATA52 83 has a build in dig ital AGC. The gain control circuit regu- lates the internal signal amplitude to the reference value (Ref2, Figure 3-2 ).
5 4598H–AUTO–03/07 ATA5283 3.4 Signal Conditioner The signal conditioner d emodulates the amplifier outp ut signal and conver ts it to a binary signal.
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 the envelope of the ante nna input signal. In the standby mode the N_DATA ou tput is disabled and set to level 1.
7 4598H–AUTO–03/07 ATA5283 3.8 Standb y Listen Mode In the standby listen mode the IC monitors the co il input with a very low current consumption. The automatic gain control is switched off and the gain is set to the maximum value. The N_DATA and the N_WAKEUP outp ut are set to a high level.
8 4598H–AUTO–03/07 ATA5283 Figure 3-7. Pin Connection an d Pin Protection Figure 3-8. Coil Input Impe dance 2 k Ω Divider impedance 143 k Ω to 5 M Ω 2 k Ω 7 VDD VDD N_W AKEUP N_D A T A RES.
9 4598H–AUTO–03/07 ATA5283 4. Absolute Maxim um Ratings Stresses beyond those listed under “Absolute Maximum Ratings” may cause per manent damage to the device.
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. Parameter s T est Conditions Pin Symbol Min. T yp. Max. Unit T ype* 1 P ower Supply and Coil Limiter 1.
11 4598H–AUTO–03/07 ATA5283 3 Automatic Gain Control 3.1 Preamble detection time V IN ≥ 3m V rms at 125 kHz t DAGC 19 2 P er iods B 3.2 AGC adjustment time f = 125 kHz V IN = 1 mV rms V IN = 3 mV rms V IN = 30 mV rms V IN = 100 mV rms V IN = 1V rms t AGC t AGC t AGC t AGC t AGC 0 48 220 292 450 512 P er iods C 3.
12 4598H–AUTO–03/07 ATA5283 9. P acka g e Inf ormation 8. Or dering Information Extended T ype Number P acka ge Remarks A T A5283P-6AQJ TSSOP8L 5000 pieces, taped and reeled, Pb-free A T A5283P-6APJ TSSOP8L 500 pieces, taped and reeled, Pb-free 3 ±0.
13 4598H–AUTO–03/07 ATA5283 10. Revision History Please note that the follo wing page numbers referred to in this section re f er to the specific revision mentioned, not to this document.
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An important point after buying a device Atmel ATA5283 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Atmel ATA5283 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Atmel ATA5283 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Atmel ATA5283 you will learn all the available features of the product, as well as information on its operation. The information that you get Atmel ATA5283 will certainly help you make a decision on the purchase.
If you already are a holder of Atmel ATA5283, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Atmel ATA5283.
However, one of the most important roles played by the user manual is to help in solving problems with Atmel ATA5283. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Atmel ATA5283 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
