u3741bm ATMEL Corporation, u3741bm Datasheet - Page 28

• Manufacturer Part Number: u3741bm
• Description: Uhf Ask Receiver Ic
• Manufacturer: ATMEL Corporation

Electrical Characteristics (Continued)
All parameters refer to GND, T
(V
Parameters
Lower cut-off frequency of the data
filter
Recommended CDEM for best
performance
Recommended CDEM for best
performance
Maximum edge-to-edge time period of
the input data signal for full sensitivity
Upper cut-off frequency data filter
Minimum edge-to-edge time period of
the input data signal for full sensitivity
Reduced sensitivity
Reduced sensitivity
Reduced sensitivity
Reduced sensitivity
Reduced sensitivity
Reduced sensitivity variation over full
operating range
28
S
= 5 V, T
amb
U3741BM
= 25°C)
amb
= -40°C to +105°C, V
Test Conditions
ASK mode
BR_Range0 (Default)
BR_Range1
BR_Range2
BR_Range3
FSK mode
BR_Range0 (Default)
BR_Range1
BR_Range2 and BR_Range3 are not
suitable for FSK operation
BR_Range0 (Default)
BR_Range1
BR_Range2
BR_Range3
Upper cut-off frequency programmable
in 4 ranges via a serial mode word
BR_Range0 (Default)
BR_Range1
BR_Range2
BR_Range3
BR_Range0 (Default)
BR_Range1
BR_Range2
BR_Range3
R
input matched according to Figure 4
R
(V
at B = 300 kHz
at B = 600 kHz
R
at B = 300 kHz
at B = 600 kHz
R
at B = 300 kHz
at B = 600 kHz
R
at B = 300 kHz
at B = 600 kHz
R
R
P
f
cu_DF
Red
Sense
Sense
Sense
Sense
Sense
Sense
Sense
S
= 5 V, T
= P
connected from pin Sens to V
= 56 kΩ, f
= 100 kΩ, f
= 56 kΩ, f
= 100 kΩ, f
= 56 kΩ
= 100 kΩ
=
Ref_Red
-----------------------------------------------------------
2
amb
×
π
= 25°C)
S
×
+ DP
in
in
= 4.5 V to 5.5 V, f
in
in
30kΩ
= 433.92 MHz,
= 315 MHz
= 433.92 MHz
= 315 MHz
1
Red
×
CDEM
0
= 433.92 MHz and f
S
,
Symbol
P
CDEM
CDEM
∆P
f
t
t
Ref_Red
cu_DF
ee_sig
ee_sig
f
u
Red
0
= 315 MHz, unless otherwise specified.
Min.
0.11
13.6
2.5
4.3
7.6
-71
-67
-80
-76
-72
-68
-81
-77
5
6
Typ.
0.16
17.0
-76
-72
-85
-81
-77
-73
-86
-82
8.2
3.1
5.4
9.5
39
22
12
27
15
0
0
Max.
1000
0.20
11.4
20.4
560
320
180
270
156
3.7
6.5
-81
-77
-90
-86
-82
-78
-91
-87
89
50
0
0
4662B–RKE–10/04
(peak
level)
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Unit
kHz
kHz
kHz
kHz
kHz
dB
dB
nF
nF
nF
nF
nF
nF
µs
µs
µs
µs
µs
µs
µs
µs