ATA8404-6DQY Atmel, ATA8404-6DQY Datasheet - Page 10

IC TRANSMITTR ASK/FSK UHF 10TSSO

ATA8404-6DQY

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

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
10
ATA8404/ATA8405 [Preliminary]
The output capacitance of 0.66 pF will be absorbed into the load impedance, so a real imped-
ance of 684
measured with a network analyses at pin 5 (ANT1) with the ATA8404/ATA8405 soldered, an
optimized antenna connected, and the power amplifier switched off.
Less output power is achieved by lowering the real parallel part where the parallel imaginary
part should be kept constant. Lowering the real part of the load impedance also reduces the
supply voltage dependency of the output power.
Output power measurement can be done with the circuit as shown in
that the component values must be changed to compensate for the individual board parasitics
until the ATA8404/ATA8405 has the right load impedance. Also, the damping of the cable used
to measure the output power must be calibrated.
Figure 4-6.
Table 4-2
and supply voltage.
Table 4-2.
Table 4-3.
Temperature
Temperature
T
T
T
T
T
T
amb
amb
amb
amb
amb
amb
Ambient
Ambient
= –40°C
= +25°C
= +85°C
= –40°C
= +25°C
= +85°C
and
Output Power Measurement ATA8404/ATA8405
Output Power and Supply Current versus Temperature and Supply
Voltage for the ATA8404 with Z
Output Power and Supply Current versus Temperature and Supply
Voltage for the ATA8405 with Z
Table 4-3
(ATA8404) at 315 MHz and 623
ANT1
ANT2
show the output power and the supply current versus temperature
~
3.3 ±1.5 / 7.6
3.0 ±1.5 / 8.0
2.8 ±1.5 / 8.0
3.1 ±1.5 / 7.2
3.0 ±1.5 / 7.5
3.0 ±1.5 / 7.5
(dBm/mA)
(dBm/mA)
V
V
Z
S
Lopt
S
= 2.0V
= 2.0V
C
C
L
V
2
1
S
1
= 2.2 pF/1.8 pF
= 1n
= 68 nH/ 39 nH
Load
Load
Z = 50
= 380 + j340 (Correlation Tested)
= 280 + j310 (Correlation Tested)
6.2 +2/–3 / 8.1
5.7 +2/–3 / 8.6
6.1 +2/–3 / 7.7
5.8 +2/–3 / 8.2
(ATA8405) at 433.92 MHz should be
6.0 ±2 / 8.5
(dBm/mA)
6.0 ±2 / 8.1
(dBm/mA)
V
V
S
S
= 3.0V
= 3.0V
Power
meter
50
R
in
Figure
7.1 +2/–3 / 8.4
6.8 +2/–3 / 8.8
7.1 +2/–3 / 7.9
7.2 +2/–3 / 8.5
7.5 ±2 / 8.8
4-6. Please note
7.4 ±2 / 8.3
(dBm/mA)
(dBm/mA)
V
V
9136C–INDCO–10/09
S
S
= 3.6V
= 3.6V

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