ATA8401-6AQY Atmel, ATA8401-6AQY Datasheet
ATA8401-6AQY
Specifications of ATA8401-6AQY
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ATA8401-6AQY Summary of contents
Page 1
... Description ® The Atmel ATA8401 is a PLL transmitter IC, which has been developed for the demands of RF low-cost transmission systems for industrial applications at data rates up to 50kBaud ASK and 32kBaud FSK modulation scheme. The transmitting frequency range is 300MHz to 350MHz. It can be used in both FSK and ASK systems. ...
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... Clock output signal for microcontroller 1 CLK The clock output frequency is set by the crystal to f Switches on power amplifier used for 2 PA_ENABLE ASK modulation 3 ANT2 Emitter of antenna output stage 4 ANT1 Open collector antenna output Atmel ATA8401 2 ATA8401 CLK 1 8 PA_ENABLE 2 7 ANT2 3 6 ANT1 4 5 ...
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... See ESD protection circuitry (see See ESD protection circuitry (see Atmel ATA8401 Power up/down f CLK PDF CP ANT2 3 LF ANT1 PA VCO 4 PLL Atmel ATA8401 Configuration VS V 1.5k 1.2k XTAL 182µA Figure 4-5 on page Figure 4-5 on page 200k ENABLE ENABLE 8 GND XTO XTAL 5 9) ...
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... ATA8401 is switched back to standby mode with ENABLE = L. 4.2 FSK Transmission The Atmel ATA8401 is activated by ENABLE = H. PA_ENABLE must remain L for typically amplifier is switched on with PA_ENABLE = H. The chip is then ready for FSK modulation. The microcontroller starts to switch on and off the capacitor between the XTAL load capacitor and GND with an open-drain output port, thus changing the reference frequency of the PLL ...
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... Clock Pulse Take-over The clock of the crystal oscillator can be used for clocking the microcontroller. A special fea- ture of Atmel ATA8401 with ENABLE = H, and after 3ms assumes the clock signal of the transmission IC, so that the message can be sent with crystal accuracy. 4.3.2 Output Matching and Power Setting The output power is set by the load impedance of the antenna ...
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... For 345MHz C has to be changed to 2.7pF 2 = 68nF/X7R is recommended for the supply-voltage blocking capacitor C 3 and Figure 4-4 on page , two capacitors in series should be used to achieve a better 2 ® ATA8401 and the PCB board wires, forms a series reso- st harmonic. Therefore, the position Power meter ...
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... Figure 4-3. ASK Application Circuit C2 Loop Antenna 4984D–INDCO–12/10 S1 BPXY Atmel AVR (ATtiny) S2 BPXY BPXY OSC1 7 Atmel ATA8401 Power up/down CLK PA_ENABLE 2 PDF ANT2 3 C1 ANT1 PA VCO 4 PLL L1 VS Atmel ATA8401 VDD VS 1 VSS 20 BPXY ENABLE 8 32 GND XTAL XTAL XTO ...
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... Figure 4-4. FSK Application Circuit S1 S2 PA_ENABLE C2 Loop C1 Antenna L1 Atmel ATA8401 8 BPXY Atmel AVR (ATtiny) BPXY BPXY OSC1 7 Atmel ATA8401 Power up/down CLK PDF CP ANT2 3 LF ANT1 PA VCO 4 PLL VS VDD VS 1 VSS 20 BP42/T2O 18 BPXY ENABLE 8 GND XTAL XTAL XTO 5 C4 4984D–INDCO–12/10 ...
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... ENABLE V < 0.25V, 25°C PA-ENABLE (100% correlation tested) Power up, PA off 3V > 1.7V, V < 0.25V ENABLE PA-ENABLE Power up 3.0V > 1.7V, V > 1.7V ENABLE PA-ENABLE Atmel ATA8401 ANT1 ANT2 XTAL ENABLE Minimum Maximum 5 100 150 –55 +85 –55 +85 (1) –0 0.3) S Value 170 Symbol Min ...
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... Capacitive load at pin XT0 FSK modulation frequency rate ASK modulation frequency rate ENABLE input PA_ENABLE input Note higher than 3.6V, the maximum voltage will be reduced to 3.6V. S Atmel ATA8401 10 = 25°C. All parameters are referred to GND (pin 7). amb Test Conditions V = 3.0V 25°C, S ...
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... Ordering Information Extended Type Number ATA8401-6AQY 9. Package Information Package: TSSOP 8L Dimensions 0.65 = 1.95 nom. Drawing-No.: 6.543-5083.01-4 Issue: 2; 15.03.04 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. ...
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... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellec- tual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICU- LAR PURPOSE, OR NON-INFRINGEMENT ...