U3741BM Datasheet, PDF (23/32 Pages) ATMEL Corporation – UHF ASK RECEIVER IC

U3741BM
Absolute Maximum Ratings
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating
only and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of this
specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Parameters
Symbol
Min.
Max.
Unit
Supply voltage
V_S
Power dissipation
P_tot
Junction temperature
T_j
Storage temperature
T_stg
-55
Ambient temperature
T_amb
-40
Maximum input level, input matched to 50 W
P_{in_max}
6
450
150
+125
+105
10
V
mW
°C
°C
°C
dBm
Thermal Resistance
Parameters
Junction ambient
Symbol
R_thJA
Value
100
Unit
K/W
Electrical Characteristics
All parameters refer to GND, T_amb = -40°C to +105°C, V_S = 4.5 V to 5.5 V, f₀ = 433.92 MHz and f₀ = 315 MHz, unless otherwise specified.
(V_S = 5 V, T_amb = 25°C)
6.76438-Mhz Osc.
(Mode 1)
4.90625-Mhz Osc.
(Mode 0)
Variable Oscillator
Parameter Test Condition
Symbol Min. Typ. Max. Min. Typ. Max. Min.
Typ.
Max. Unit
Basic Clock Cycle of the Digital Circuitry
Basic clock
cycle
MODE = 0 (USA)
MODE = 1 (Europe)
Extended
basic clock
cycle
BR_Range0
BR_Range1
BR_Range2
BR_Range3
Polling Mode
T_Clk
T_XClk
2.0697
16.6
8.3
4.1
2.1
2.0383
16.3
8.2
4.1
2.0
1/(f_XTO/10)
µs
1/(f_XTO/14)
µs
8 × T_Clk
µs
4 × T_Clk
µs
2 × T_Clk
µs
1 × T_Clk
µs
Sleep time
Sleep and X_Sleep are
defined in the
OPMODE register
T_Sleep
Sleep ×
X_Sleep ×
1024 ×
2.0697
Sleep ×
X_Sleep ×
1024 ×
2.0383
Sleep ×
X_Sleep ×
ms
1024 × T_Clk
Start-up time
Time for Bit
Check
BR_Range0
BR_Range1
BR_Range2
BR_Range3
Average bit check
time while polling
BR_Range0
BR_Range1
BR_Range2
BR_Range3
Bit check time for a
valid input signal f_Sig
N_Bitcheck = 0
N_Bitcheck = 3
N_Bitcheck = 6
N_Bitcheck = 9
T_Startup
T_Bitcheck
T_Bitcheck
3/f_Sig
6/f_Sig
9/f_Sig
1855
1061
1061
663
0.45
0.24
0.14
0.14
1827
1045
1045
653
0.47
0.26
0.16
0.15
3.5/f_Sig
6.5/f_Sig
9.5/f_Sig
3/f_Sig
6/f_Sig
9/f_Sig
3.5/f_Sig
6.5/f_Sig
9.5/f_Sig
896.5
µs
512.5
µs
512.5
µs
320.5 × T_Clk
µs
ms
ms
ms
ms
T_XClk
ms
3.5/f_Sig ms
6.5/f_Sig ms
9.5/f_Sig ms
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