ATA5429-PLQW Atmel, ATA5429-PLQW Datasheet - Page 16
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ATA5429-PLQW
Manufacturer Part Number
ATA5429-PLQW
Description
IC TXRX ASK/FSK 915MHZ 48-QFN
Manufacturer
Atmel
Specifications of ATA5429-PLQW
Frequency
915MHz
Data Rate - Maximum
20kbps
Modulation Or Protocol
ASK, FSK
Applications
Alarm, ISM, Telemetry
Power - Output
5dBm
Sensitivity
-112.5dBm
Voltage - Supply
2.4 V ~ 3.6 V or 4.4 V ~ 6.6 V
Current - Receiving
10.5mA
Current - Transmitting
10mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Package / Case
48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Product Depth (mm)
7mm
Product Height (mm)
0.9mm
Product Length (mm)
7mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Memory Size
-
Lead Free Status / Rohs Status
Compliant
Other names
ATA5429-PLQW
ATA5429-PLQWTR
ATA5429-PLQWTR
16
ATA5423/ATA5425/ATA5428/ATA5429
Table 3-6.
The ATA5423/ATA5425/ATA5428/ATA5429 can also receive FSK and ASK modulated signals if
they are much higher than the I1dBCP. It can typically receive useful signals at 10 dBm. This is
often referred to as the nonlinear dynamic range which is the maximum to minimum receiving
signal and is 116 dB for 20 Kbit/s Manchester. This value is useful if two transceivers have to
communicate and are very close to each other.
Figure 3-5.
This high blocking performance even makes it possible for some applications using quarter
wave whip antennas to use a simple LC band-pass filter instead of a SAW filter in the receiver.
W h e n d e s i g n i n g s u c h a n L C f i l t e r t a k e i n t o a c c o u n t t h a t t h e 3 d B b l o c k i n g a t
433.92 MHz/2 = 216.96 MHz is 43 dBC and at 433.92 MHz/3 = 144.64 MHz is 48 dBC and at
2
cially that at 3
second LO harmonic receiving frequency with only 12 dBC blocking.
(433.92 MHz + 226 kHz) + –226 kHz = 868.066 MHz/868.518 MHz is 56 dBC. And espe-
Frequency Offset
+0.75 MHz
–
+1.5 MHz
–
+10 MHz
–
0.75 MHz
1.5 MHz
10 MHz
Blocking 6 dB Above Sensitivity Level with BER < 10
Close In 6 dB Blocking Characteristic and Image Response at 433.92 MHz
(433.92 MHz + 226 kHz) + 226 kHz = 1302.664 MHz the receiver has its
-10
70
60
50
40
30
20
10
0
-1.0
-0.8
Distance of Interfering to Receiving Signal (MHz)
Distance of Interfering to Receiving Signal (MHz)
-0.6
-0.4
Blocker Level
–
–
–
–
–
–
-0.2
45 dBm
45 dBm
38 dBm
38 dBm
30 dBm
30 dBm
0
0.2
0.4
0.6
–3
0.8
1.0
55 dBC/61 dBS
55 dBC/61 dBS
62 dBC/68 dBS
62 dBC/68 dBS
70 dBC/76 dBS
70 dBC/76 dBS
Blocking
4841D–WIRE–10/07