ATA8403-6AQY

Manufacturer Part NumberATA8403-6AQY
DescriptionIC XMITTER UHF 868-928MHZ 8TSSOP
ManufacturerAtmel
ATA8403-6AQY datasheet
 

Specifications of ATA8403-6AQY

Frequency868MHz ~ 928MHzApplicationsRKE, Remote Control Systems
Modulation Or ProtocolASK, FSKData Rate - Maximum50 kBaud
Power - Output5.5dBmCurrent - Transmitting8.5mA
Data InterfacePCB, Surface MountAntenna ConnectorPCB, Surface Mount
Voltage - Supply2 V ~ 4 VOperating Temperature-40°C ~ 85°C
Package / Case8-TSSOPLead Free Status / RoHS StatusLead free / RoHS Compliant
Features-Memory Size-
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Features
Integrated PLL Loop Filter
ESD Protection also at ANT1/ANT2
(4 kV HBM/200V MM; Except Pin 2: 4 kV HBM/100V MM)
High Output Power (5.5 dBm) with Low Supply Current (8.5 mA)
Modulation Scheme ASK/FSK
– FSK Modulation is Achieved by Connecting an Additional Capacitor Between the
XTAL Load Capacitor and the Open Drain Output of the Modulating Microcontroller
Easy to Design-in Due to Excellent Isolation of the PLL from the PA and Power Supply
Single Li-cell for Power Supply
Supply Voltage 2.0V to 4.0V in the Temperature Range of –40°C to +85°C
Package TSSOP8L
Single-ended Antenna Output with High Efficient Power Amplifier
CLK Output for Clocking the Microcontroller
One-chip Solution with Minimum External Circuitry
Applications
Industrial/Aftermarket Remote Keyless Entry Systems
Alarm, Telemetering, and Energy Metering Systems
Remote Control Systems for Consumer and Industrial Markets
Access Control Systems
Home Automation
Home Entertainment
Toys
1. Description
The ATA8403 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
50 kBaud ASK and 32 kBaud FSK modulation scheme. The transmitting frequency
range is 868 MHz to 928 MHz. It can be used in both FSK and ASK systems.
Figure 1-1.
System Block Diagram
UHF ASK/FSK
Remote control transmitter
1 Li cell
ATA8403
Encoder
PLL
ATARx9x
Keys
XTO
VCO
LNA
UHF ASK/FSK
Remote control receiver
ATA5760/
ATA5761
Demod
Control
Antenna
Antenna
PLL
XTO
LNA
VCO
UHF ASK/FSK
Industrial
Transmitter
ATA8403
1 to 3
Micro-
controller
4983B–INDCO–10/08

ATA8403-6AQY Summary of contents

  • Page 1

    ... Toys 1. Description The ATA8403 is a PLL transmitter IC, which has been developed for the demands of RF low-cost transmission systems for industrial applications at data rates kBaud ASK and 32 kBaud FSK modulation scheme. The transmitting frequency range is 868 MHz to 928 MHz. It can be used in both FSK and ASK systems. ...

  • Page 2

    ... Clock output signal for microconroller 1 CLK The clock output frequency is set by the crystal to f Switches on power amplifier, which is 2 PA_ENABLE used for ASK modulation 3 ANT2 Emitter of antenna output stage 4 ANT1 Open collector antenna output ATA8403 2 CLK 1 8 PA_ENABLE 2 7 ANT2 3 6 ANT1 4 5 Configuration ...

  • Page 3

    ... Configuration See ESD protection circuitry (see See ESD protection circuitry (see ATA8403 Power up/down f CLK PDF CP ANT2 3 LF ANT1 PA VCO 4 PLL ATA8403 VS VS 1.5 k 1.2 k XTAL 182 µA Figure 4-5 on page Figure 4-5 on page 200 k ENABLE ENABLE 8 GND XTO XTAL ...

  • Page 4

    ... PLL. If the switch is closed, the output frequency is lower than if the switch is open. After transmission PA_ENABLE is switched to L and the microcontroller switches back to internal clocking. The ATA8403 is switched back to standby mode with ENABLE = L. The accuracy of the frequency deviation with XTAL pulling method is about ±25% when the fol- lowing tolerances are considered ...

  • Page 5

    ... Load of 5.5 dBm. The load impedance is defined as the impedance seen from the ATA8403’s ANT1, ANT2 into the matching network. Do not confuse this large signal load impedance with a small signal input impedance delivered as input characteristic of RF amplifiers and measured from the application into the IC instead of from the IC into the application for a power amplifier ...

  • Page 6

    ... C series should be used to achieve a better tolerance value and to have the possibility of realizing the Z Load,opt C , together with the pins of ATA8403 and the PCB board wires, forms a series resonance loop 1 that suppresses the 1 mally the best suppression is achieved when C and ANT2. ...

  • Page 7

    ... Figure 4-3. ASK Application Circuit C2 Loop Antenna 4983B–INDCO–10/08 S1 BPXY ATARx9x S2 BPXY BPXY OSC1 7 ATA8403 Power up/down CLK PA_ENABLE 2 PDF ANT2 3 C1 ANT1 PA VCO 4 PLL L1 VS VDD VS 1 VSS 20 BPXY ENABLE 8 64 GND XTAL XTAL XTO 5 C4 ATA8403 VS 7 ...

  • Page 8

    ... Figure 4-4. FSK Application Circuit S1 S2 PA_ENABLE C2 Loop C1 Antenna L1 ATA8403 8 BPXY ATARx9x BPXY BPXY OSC1 7 ATA8403 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 4983B–INDCO–10/08 ...

  • Page 9

    ... Load ANT1 ANT2 XTAL ENABLE Minimum Maximum 5 100 150 –55 +85 –55 +85 (1) –0 0.3) S Value 170 Symbol Min. Typ. I S_Off < 3 8.5 S_Transmit P 3.5 5.5 Ref ATA8403 Unit V mW °C °C °C V Unit K/W Max. Unit 350 dBm 9 ...

  • Page 10

    ... High level input voltage Input current high Low level input voltage PA_ENABLE input High level input voltage Input current high Note higher than 3.6V, the maximum voltage will be reduced to 3.6V. S ATA8403 10 = 25°C. All parameters are referred to GND (pin 7). amb = 25°C, amb = 3. 2. 25° ...

  • Page 11

    ... Ordering Information Extended Type Number ATA8403-6AQY 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. ...

  • Page 12

    ... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, 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 PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...