ATA8404-6DQY Atmel, ATA8404-6DQY Datasheet - Page 7

• Manufacturer Part Number: ATA8404-6DQY
• Description: IC TRANSMITTR ASK/FSK UHF 10TSSO
• Manufacturer: Atmel

Specifications of ATA8404-6DQY

• Frequency: 313MHz ~ 317MHz
• Applications: Home Automation, Remote Sensing, RKE
• Modulation Or Protocol: ASK, FSK
• Data Rate - Maximum: 40 kBaud
• Power - Output: 4dBm ~ 8dBm
• Current - Transmitting: 8.4mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2 V ~ 3.6 V
• Operating Temperature: -55°C ~ 85°C
• Package / Case: 10-TSSOP
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (max): 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Lead Free Status / Rohs Status: Compliant

4.2
4.2.1
4.2.2
9136C–INDCO–10/09
Transmission with ENABLE = High
FSK Mode
ASK Mode
The ATA8404/ATA8405 is activated by ENABLE = High, FSK = High, and ASK = Low. The
microcontroller is then switched to external clocking. After typically 0.6 ms, the CLK driver is
activated automatically (i.e., the microcontroller waits until the XTO and CLK are ready). After
another time period of
is switched on with ASK = H. The ATA8404/ATA8405 is then ready for FSK modulation. The
microcontroller starts to switch on and off the capacitor between the crystal load capacitor and
GND by means of pin FSK, thus, changing the reference frequency of the PLL. IF FSK = L the
output frequency is lower, if FSK = H output frequency is higher. After transmission, ASK is
switched to Low and the microcontroller returns back to internal clocking. Then, the
ATA8404/ATA8405 is switched to power-down mode with ENABLE = Low and FSK = Low.
Figure 4-3.
The ATA8404/ATA8405 is activated by ENABLE = High, FSK = High and ASK = Low. After
activation the microcontroller is switched to external clocking. After typically 0.6 ms, the CLK
driver is activated automatically (the microcontroller waits until the XTO and CLK are ready).
After another time period of
power can then be modulated by means of pin ASK. After transmission, ASK is switched to
Low and the microcontroller returns back to internal clocking. Then, the ATA8404/ATA8405 is
switched to power-down mode with ENABLE = Low and FSK = Low.
ENABLE
ASK
FSK
CLK
Timing FSK Mode with ENABLE Connected to the Microcontroller
Power-down
250 µs, the PLL is locked and ready to transmit. The power amplifier
250 µs, the PLL is locked and ready to transmit. The output
ATA8404/ATA8405 [Preliminary]
T
XTO
Power-up,
PA off
> 250 µs
(f
Power-up,
RF
PA on
= High)
(f
Power-up,
RF
PA off
= Low)
Power-down
7