u3742bm ATMEL Corporation, u3742bm Datasheet - Page 30

• Manufacturer Part Number: u3742bm
• Description: Uhf Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

Electrical Characteristics (Continued)
All parameters refer to GND, T
wise specified. (V
30
Parameters
Reduced sensitivity
Reduced sensitivity variation over full
operating range
Reduced sensitivity variation for
different values of R
Threshold voltage for reset
Digital Ports
Data output
- Saturation voltage LOW
- Internal pull-up resistor
- Maximum time constant
- Maximum capacitive load
FSK/ASK input
- Low-level input voltage
- High-level input voltage
ENABLE input
- Low-level input voltage
- High-level input voltage
MODE input
- Low-level input voltage
- High-level input voltage
TEST input
- Low-level input voltage
U3742BM
S
Sense
= 5 V, T
amb
amb
= 25°C)
= -40°C to +105°C, V
Test Conditions
(V
R
R
R
R
R
R
P
Values relative to
R
R
R
R
R
R
R
P
I
t = C
without external pull-up resistor
R
FSK selected
ASK selected
Idle mode
Active mode
Division factor = 10
Division factor = 14
Test input must always be set to LOW
ol
Sense
Sense
Sense
Sense
Sense
Sense
Red
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Red
ext
S
= 1 mA
= 5 V, T
= 5 k W
= P
= P
L
(R
= 56 k W , f
= 100 k W , f
= 56 k W , f
= 100 k W , f
= 56 k W
= 100 k W
= 56 k W
= 56 k W
= 68 k W
= 82 k W
= 100 k W
= 120 k W
= 150 k W
Ref_Red
Ref_Red
pup
amb
//R
Ext
= 25 ° C)
+ D P
+ D P
in
in
)
in
in
= 433.92 MHz,
= 315 MHz
= 433.92 MHz
= 315 MHz
Red
Red
S
= 4.5 V to 5.5 V, f
V
Symbol
0
D P
D P
ThRESET
R
= 433.92 MHz and f
V
V
V
V
C
C
V
V
V
V
Pup
t
OI
Red
Red
Ih
Ih
Ih
L
L
Il
Il
Il
Il
0.8 ´ V
0.8 ´ V
0.8 ´ V
Min.
1.95
-67
-76
-68
-77
39
5
6
S
S
S
0
-11.0
-13.5
Typ.
0.08
-3.5
-6.0
-9.0
-72
-81
-73
-82
2.8
= 315 MHz, unless other-
50
0
0
0
0.2 ´ V
0.2 ´ V
0.2 ´ V
0.2 ´ V
Max.
3.75
540
-77
-86
-78
-87
0.3
2.5
61
41
0
0
4735A–RKE–11/03
S
S
S
S
dBm
dBm
dBm
dBm
Unit
dB
dB
dB
dB
dB
dB
dB
dB
k W
pF
pF
µs
V
V
V
V
V
V
V
V
V