u3745bm ATMEL Corporation, u3745bm Datasheet - Page 23

• Manufacturer Part Number: u3745bm
• Description: Receiver
• Manufacturer: ATMEL Corporation

Absolute Maximum Ratings
Thermal Resistance
Electrical Characteristics
All parameters refer to GND, V
possible operating range refer to different circuit conditions: V
4663A–RKE–06/03
Parameters
Current consumption
LNA Mixer
Third-order intercept point
LO spurious emission at RF
Noise figure LNA and mixer (DSB)
LNA_IN input impedance
1 dB compression point (LNA, mixer,
IF amplifier)
Maximum input level
Local Oscillator
Operating frequency range VCO
Loop bandwidth of the PLL
Capacitive load at Pin LF
Parameters
Supply voltage
Power dissipation
Junction temperature
Storage temperature
Ambient temperature
Maximum input level, input matched to 50 W
Parameters
Junction ambient
In
S
= 5 V, T
Test Conditions
Sleep mode
(XTO and polling logic active)
IC active
(startup-, bit check-, receiving mode)
Pin DATA = H
LNA/mixer/IF amplifier
input matched according to Figure 4
Input matched according to Figure 4,
required according to I-ETS 300220
Input matching according to Figure 4
at 433.92 MHz
at 315 MHz
Input matched according to Figure 4,
referred to RF
Input matched according to Figure 4,
BER £ 10
ASK mode
For best LO noise
(design parameter)
R1 = 820 W
C9 = 4.7 nF
C10 = 1 nF
The capacitive load at pin LF is limited
if bit check is used. The limitation
therefore also applies to self polling.
amb
-3
= 25 ° C, f
,
in
Symbol
Symbol
P
R
T
T
in_max
P
V
T
amb
thJA
stg
0
tot
S
j
= 433.92 MHz and f
S
= 4.5 V to 5.5 V, T
Min.
-55
-40
Symbol
Zi
P
IS
C
B
IP
IIP3
f
IS
IS
LNA_IN
in_max
0
NF
VCO
LF_tot
LORF
Loop
1db
= 315 MHz, unless otherwise specified. The
off
on
Value
100
amb
= -40 ° C to +85 ° C
Min.
309
Max.
+125
450
150
+85
10
6
1.0 || 1.56
1.3 || 1.0
Typ.
190
100
-73
-40
7.0
-28
7
U3745BM
Max.
350
439
8.6
-57
-23
10
Unit
dBm
Unit
K/W
mW
° C
° C
° C
V
k W || pF
k W || pF
dBm
dBm
dBm
dBm
MHz
Unit
kHz
mA
µA
dB
nF
23