ATA5771 ATMEL Corporation, ATA5771 Datasheet - Page 6

• Manufacturer Part Number: ATA5771
• Manufacturer: ATMEL Corporation

4. UHF ASK/FSK Transmitter Block
6
ATA5771/ATA5773/ATA5774
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More detailed information about the UHF ASK/FSK Transmitter Block can be found in Appendix
1, 2 and 3.
ATA5771
ATA5773
ATA5774
Table 4-1.
Note:
Integrated PLL Loop Filter
Maximum Output Power (ATA5771: 5.5 dBm, ATA5773: 8.0 dBm, ATA5774: 7.5 dBm) with Low
Supply Current
Modulation Scheme ASK/FSK
Easy to Design-in Due to Excellent Isolation of the PLL from the PA and Power Supply
Supply Voltage 2.0V to 4.0V in the Temperature Range of –40 C to +85 C
Single-ended Antenna Output with High Efficient Power Amplifier
External CLK Output for Clocking the Microcontroller
– FSK Modulation is Achieved by Switching on/off an Additional Capacitor Between the XTAL
Load Capacitor and GND. This is Done Using a MOS Switch Controlled by a Microcontroller
Output.
For the ATA5771/ATA5773/ATA5774 following points differs in the data sheets:
- The temperature range is limited to –40 C to +85 C
- ESD protection: HBM 3000V, MM 100V, CDM 1000V
-
- For FSK modulation an additional MOS switch is required
Figure 4-1 on page
PA_ENABLE
Pin Name
ENABLE
ANT2
ANT1
XTAL
GND
CLK
see Appendix 1:
see Appendix 2:
see Appendix 3:
Transmitter Pin Cross Reference List
VS
7: Two output power measurement
Pin Number T5750/53/54
Data sheet T5750 (868 MHz band)
Data sheet T5753 (315 MHz band)
Data sheet T5754 (433 MHz band)
1
2
3
4
5
6
7
8
Pin Number ATA5771/73/74
10
11
20
21
22
23
8
9
9137A–RKE–10/08