ATA5749-6DPY Atmel, ATA5749-6DPY Datasheet - Page 11

• Manufacturer Part Number: ATA5749-6DPY
• Description: IC XMITTER FRACT-N PLL 10TSSOP
• Manufacturer: Atmel

Specifications of ATA5749-6DPY

• Frequency: 300MHz ~ 450MHz
• Applications: General Data Transfer
• Modulation Or Protocol: ASK, FSK
• Data Rate - Maximum: 40 kbps
• Power - Output: 12.5dBm
• Current - Transmitting: 8.8mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 1.9 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 10-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -

5. Pulling of Frequency due to ASK Modulation (PA Switching)
9128G–RKE–03/11
The switching effect on VCO frequency in ASK Mode is very low if a correct PCB layout and
decoupling is used. Therefore, power ramping is not needed to achieve a clean spectrum (see
Figure
Figure 5-1.
5-1).
Typical RF Spectrum of 40kHz ASK Modulation at Pout = 12.5dBm
Atmel ATA5749
11