ATA8404-6DQY Atmel, ATA8404-6DQY Datasheet - Page 8

• 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

4.3
8
Accuracy of Frequency Deviation
ATA8404/ATA8405 [Preliminary]
Figure 4-4.
The accuracy of the frequency deviation using the XTAL pulling method is about 20% if the
following tolerances are considered. One important aspect is that the values of C
typical crystals are strongly correlated, which reduces the tolerance of the frequency deviation.
Figure 4-5.
Using a crystal with a motional capacitance of C
of C
C
internal FSK switch with C
±10%, the resulting C
frequency deviation of ±19.3 kHz with worst case tolerances of ±15.8 kHz to ±23.2 kHz.
0
= 297
LNOM
ENABLE
= 18 pF and a parallel capacitance of C
ASK
FSK
CLK
C
M
Timing ASK Mode with ENABLE Connected to the Microcontroller
Tolerances of Frequency Modulation
the correlation has a tolerance of 10%, so C
Power-down
4
XTAL
and C
V
S
~
Switch
5
values are C
= 0.9 pF ±20% and estimated parasitics of C
T
XTO
Power-up,
PA off
Crystal equivalent circuit
> 250 µs
C
M
4
= 10 pF ±1% and C
L
C
M
M
0
= 4.37 fF ±15%, a nominal load capacitance
Power-up,
R
0
PA on
(High)
S
= 1.30 pF correlated with C
Power-up,
0
C
PA off
Stray
= 267 to 326
(Low)
C
5
5
= 15 pF ±1% for a nominal
C
Switch
C
4
Power-down
C
9136C–INDCO–10/09
M
). If using the
Stray
0
M
and C
results in
= 0.7 pF
M
of