ATA8402-6AQY Atmel, ATA8402-6AQY Datasheet - Page 6

• Manufacturer Part Number: ATA8402-6AQY
• Description: IC TRANSMITTER UHF 433MHZ 8TSSOP
• Manufacturer: Atmel

Specifications of ATA8402-6AQY

• Frequency: 429MHz ~ 439MHz
• Applications: RKE, Remote Control Systems
• Modulation Or Protocol: ASK, FSK
• Data Rate - Maximum: 50 kBaud
• Power - Output: 7.5dBm
• Current - Transmitting: 9mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2 V ~ 4 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -

4.4
6
Application Circuit
ATA8402
Figure 4-2.
A value of 68 nF/X7R is recommended for the supply-voltage blocking capacitor C
4-3 on page 7
power amplifier where C
For C
the possibility of realizing the Z
C
that suppresses the 1
mally the best suppression is achieved when C
and ANT2.
The loop antenna should not exceed a width of 1.5 mm, otherwise the Q-factor of the loop
antenna is too high.
L
load resonance frequency of the crystal. Normally, a 15 pF load-capacitance crystal results in a
value of 12 pF.
1
1
, together with the pins of ATA8402 and the PCB board wires, forms a series resonance loop
([50 nH to 100 nH) can be printed on PCB. C
2
, two capacitors in series should be used to achieve a better tolerance value and to have
Output Power Measurement
and
Figure 4-4 on page
st
ANT1
ANT2
harmonic. Therefore, the position of C
1
typically is 8.2 pF/NP0 and C
Load,opt
Z
Lopt
V
L
S
1
33 nH
using standard valued capacitors.
2.2 pF
8). C
1 nF
C
C
1
2
1
and C
1
4
is placed as close as possible to the pins ANT1
should be selected so that the XTO runs on the
2
Z = 50
are used to match the loop antenna to the
2
is 6 pF/NP0 (10 pF + 15 pF in series).
1
on the PCB is important. Nor-
Power
meter
50
R
in
4982A–IND–02/07
3
(see
Figure