ATA5428_14 Datasheet, PDF (60/85 Pages) ATMEL Corporation – UHF ASK/FSK Transceiver

12. Electrical Characteristics: General (Continued)
This device is manufactured with an industrial (not automotive) grade process and process controls. Although this device may meet
certain automotive grade criteria in performance, Atmel can not recommend that this device be used in any automotive application.
All parameters refer to GND and are valid for T_amb = 25°C, V_VS1 = V_VS2 = 3.0V (1-battery application), V_VS2 = 6.0V (2-battery
application) and V_VS2 = V_VAUX = 5.0V (Base-station Application). Typical values are given at f_RF = 433.92MHz unless otherwise
specified. Details about current consumption, timing and digital pin properties can be found in the specific sections of the “Electrical
Characteristics”.
No. Parameters
Test Conditions
Pin⁽¹⁾
Symbol
Min.
Typ.
Max. Unit Type*
With up to 2dB
loss of sensitivity.
Note that the tolerable
2.7
Supported FSK
frequency deviation
frequency offset is for
f_DEV = ±22kHz, 6kHz
(4)
f_DEV
±14
±16
±22 kHz
B
lower than for
f_DEV = ±16kHz hence
Δf_OFFSET ≤ ±52kHz
2.8 System noise figure
f_RF = 433.92MHz
f_RF = 868.3MHz
(4)
NF
(4)
NF
7.0
dB
B
9.7
dB
B
2.9 Intermediate frequency ^{fRF = 433.92MHz}
f_RF = 868.3MHz
f_IF
223
kHz
A
f_IF
226
kHz
A
This value is for
information only!
2.10 System bandwidth
Note that for crystal and
system frequency offset
(4)
SBW
185
kHz
A
calculations, Δf_OFFSET
must be used.
System outband
2.11
2nd-order input
intercept point with
respect to f_IF
Δf_meas1 = 1,800MHz
Δf_meas2 = 2,026MHz
f_IF = Δf_meas2 – Δf_meas1
(4)
IIP2
2.12
System outband
3rd-order input intercept
point
Δf_meas1 = 1.8MHz
Δf_meas2 = 3.6MHz
f_RF = 433.92MHz
f_RF = 868.3MHz
(4)
IIP3
(4)
IIP3
2.13
System outband input
1dB compression point
Δf_meas1 = 1MHz
f_RF = 433.92MHz
f_RF = 868.3MHz
(4)
I1dBCP
(4)
I1dBCP
2.14 LNA input impedance ^{fRF = 433.92MHz}
f_RF = 868.3MHz
4
Z_{in_LNA}
4
Z_{in_LNA}
BER < 10^-3,
2.15
Allowable peak RF input
level, ASK and FSK
ASK: 100%
FSK: f_DEV = ±16kHz
(4)
P_{IN_max}
(4)
P_{IN_max}
f < 1GHz
(4)
+50
dBm
C
–21
dBm
C
–17
dBm
C
–30
dBm
C
–27
(32 – j169)
(21 – j78)
dBm
C
Ω
C
Ω
C
+10
–10 dBm
C
+10
–10 dBm
C
–57 dBm
C
2.16
LO spurious emission at
LNA_IN
f >1GHz
f_RF = 433.92MHz
(4)
(4)
–47 dBm
C
–97
dBm
C
f_RF = 868.3MHz
(4)
–84
dBm
C
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note:
1. Pin numbers in brackets mean they were measured with RF_IN matched to 50Ω according to Figure 3-1 on page 11
with component values according to Table 3-2 on page 11 and RF_OUT matched to 50Ω according to Figure 3-10 on
page 18 with component values according to Table 3-7 on page 19.
60 ATA5428 [DATASHEET]
4841H–WIRE–09/14