ATA5429 ATMEL Corporation, ATA5429 Datasheet - Page 12

• Manufacturer Part Number: ATA5429
• Description: (ATA5423 - ATA5429) UHF ASK/FSK Transceiver
• Manufacturer: ATMEL Corporation

3.3
12
Sensitivity versus Supply Voltage, Temperature and Frequency Offset
ATA5423/25/28/29 [Preliminary]
Table 3-2.
Table 3-3.
Table 3-4.
To calculate the behavior of a transmission system it is important to know the reduction of the
sensitivity due to several influences. The most important are frequency offset due to crystal
oscillator (XTO) and crystal frequency (XTAL) errors, temperature and supply voltage depen-
dency of the noise figure and IF filter bandwidth of the receiver.
sensitivity at 433.92 MHz/FSK/20kBaud/ 16 kHz/Manchester versus the frequency offset
between transmitter and receiver with T
VS1 = VS2 = 2.4 V, 3.0 V and 3.6 V.
RF Frequency
433.92 MHz
433.92 MHz
Frequency
868.3 MHz
868.3 MHz
315 MHz
345 MHz
915 MHz
315 MHz
345 MHz
915 MHz
RF
f
433.92
RF
868.3
315
345
915
/MHz
Input Matching to 50
Measured Sensitivity FSK, ±16 kHz, Manchester, dBm, BER = 10
Measured Sensitivity 100% ASK, Manchester, dBm, BER = 10
BR_Range_0
BR_Range_0
–
–
–
–
–
–
1.0 kBaud
1.0 kBaud
110.0 dBm
109.0 dBm
106.0 dBm
117.0 dBm
116.0 dBm
112.5 dBm
TBD
TBD
TBD
TBD
BR_Range_0
BR_Range_0
–
–
–
–
–
–
C
2.4 kBaud
TBD
TBD
2.4 kBaud
110.5 dBm
109.5 dBm
106.5 dBm
2.2
1.8
1.2
117.5 dBm
116.5 dBm
113.0 dBm
1
/pF
TBD
TBD
TBD
TBD
amb
= -40°C, +25°C and +105°C and supply voltage
BR_Range_1
BR_Range_1
–
–
–
–
–
5.0 kBaud
109.0 dBm
108.0 dBm
105.5 dBm
5.0 kBaud
–
114.0 dBm
111.5 dBm
115 dBm
TBD
TBD
TBD
TBD
L
TBD
TBD
1
6.8
56
27
/nH
BR_Range_2
BR_Range_2
–
–
–
–
–
–
10 kBaud
108.0 dBm
107.0 dBm
104.0 dBm
10 kBaud
Figure 3-2
113.5 dBm
112.5 dBm
109.5 dBm
TBD
TBD
TBD
TBD
–3
shows the typical
–3
BR_Range_3
–
–
–
TBD
TBD
4841A–RKE–02/05
Q
20 kBaud
107.0 dBm
106.0 dBm
103.5 dBm
43
40
58
L1
TBD
TBD