ATA5745-EK Atmel, ATA5745-EK Datasheet - Page 11

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ATA5745-EK

Manufacturer Part Number
ATA5745-EK
Description
BOARD RCVR 433MHZ RKE/TPMS
Manufacturer
Atmel
Type
Receiver, ASK/FSKr
Datasheets

Specifications of ATA5745-EK

Frequency
433MHz ~ 435MHz
For Use With/related Products
ATA5745
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
2.5
2.6
4596B–RKE–06/07
RX Supply Current Versus Temperature and Supply Voltage
Blocking, Selectivity
Table 2-7
and temperature with VS = VS3V_AVCC = VS5V.
Table 2-6.
Table 2-7.
As can be seen in
receiver can receive signals 3 dB higher than the sensitivity level in the presence of large block-
ers of –34.5 dBm or –28 dBm with small frequency offsets of ±3 MHz or ±20 MHz.
Figure
12
signal of 315 MHz, FSK, 10 Kbits/s, 38 kHz, Manchester, BR_Range2 with a level of
–105 dBm + 3 dB = –102 dBm, which is 3 dB above the sensitivity level. The figures show how
much larger than –102 dBm a continuous wave signal can be, until the BER is higher than 10
The measurements were done at the 50 input shown in
e x a m p l e ,
–102 dBm + 67.5 dBC = –34.5 dBm.
Figure 2-6.
VS = VS3V_AVCC = VS5V
VS = VS3V_AVCC = VS5V
shows the wide-band blocking characteristic. The measurements were done with a useful
2-6, and
T
T
T
T
T
T
amb
amb
amb
amb
amb
amb
shows the typical supply current of the receiver in Active mode versus supply voltage
=
=
=
=
=
=
t h e
–40°C
105°C
–40°C
105°C
Measured Current in Active Mode ASK
Measured Current in Active Mode FSK
Close-in 3-dB Blocking Characteristic and Image Response at 315 MHz
25°C
25°C
Figure 2-7 on page 12
-10.0
60.0
40.0
30.0
20.0
70.0
50.0
10.0
0.0
Figure 2-6 on page
b l o c k e r
-2.0
-1.5
Distance from Interfering to Receiving Signal (MHz)
c a n
ATA5745/ATA5746 [Preliminary]
-1.0
5.4 mA
6.4 mA
7.4 mA
5.6 mA
6.6 mA
7.6 mA
2.7V
2.7V
b e
show the narrow-band blocking, and
11, and
-0.5
6 7 . 5 d B C
Figure 2-7
0.0
0.5
5.5 mA
6.5 mA
7.5 mA
5.7 mA
6.7 mA
7.7 mA
h i g h e r
Figure 2-1 on page 6
3.0V
3.0V
and
1.0
Figure 2-8 on page
t h a n
1.5
Figure 2-8 on page
– 1 0 2 d B m ,
2.0
5.6 mA
6.6 mA
7.6 mA
5.8 mA
6.8 mA
7.8 mA
At 3 MHz, for
3.3V
3.3V
12, the
o r
11
–3
.

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