U3741BM Datasheet, PDF (25/32 Pages) ATMEL Corporation – UHF ASK RECEIVER IC

U3741BM
Electrical Characteristics (Continued)
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
Delay until the
program
window starts
(Figure 17,
Figure 20)
t4
131
129
63.5 × T_Clk
µs
Programming
window
(Figure 17,
Figure 20)
t5
530
522
256 × T_Clk
µs
Time frame
of a bit
(Figure 20)
t6
1060
1044
512 × T_Clk
µs
Programming
pulse (Figure
17, Figure 20)
t7
133
529 131
521
64 ×
T_Clk
256 ×
T_Clk
µs
Equivalent
acknowledge
pulse: E_Ack
(Figure 20)
t8
265
261
128 × T_Clk
µs
Equivalent
time window
(Figure 20)
t9
534
526
258 × T_Clk
µs
OFF-bit
programming
window
(Figure 17)
t10
930
916
449.5 × T_Clk
µs
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)
Parameters
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
Current consumption
Sleep mode
(XTO and polling logic active)
IS_off
IC active
(startup-, bit check-, receiving mode)
IS_on
pin DATA = H
190
350
µA
7.0
8.6
mA
LNA Mixer
Third-order intercept point
LNA/mixer/IF amplifier
input matched according to Figure 4
IIP3
-28
dBm
LO spurious emission at RF_In
Input matched according to Figure 4,
required according to I-ETS 300220
IS_LORF
-73
-57
dBm
Noise figure LNA and mixer (DSB) Input matching according to Figure 4
NF
7
dB
LNA_IN input impedance
at 433.92 MHz
at 315 MHz
Zi_{LNA_IN}
1.0 || 1.56
1.3 || 1.0
kΩ || pF
kΩ || pF
1 dB compression point (LNA, mixer, IF Input matched according to Figure 4,
amplifier)
referred to RF_in
IP_1db
-40
dBm
25
4662B–RKE–10/04