U3741BM-M2FLG3 TEMIC [TEMIC Semiconductors], U3741BM-M2FLG3 Datasheet - Page 23

• Manufacturer Part Number: U3741BM-M2FLG3
• Description: UHF ASK/FSK Receiver
• Manufacturer: TEMIC [TEMIC Semiconductors]

Rev. A1, 15-Oct-98
Electrical Characteristics (continued)
All parameters refer to GND, T
unless otherwise specified. (V
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 caoacitive load
POUT output
– Saturation voltage LOW
– Saturation voltage HIGH
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
Parameters
Sense
R
V
figure 6
R
(V
@ B = 300 kHz
@ B = 600 kHz
R
@ B = 300 kHz
@ B = 600 kHz
R
@ B = 300 kHz
@ B = 600 kHz
R
@ B = 300 kHz
@ B = 600 kHz
R
R
P
Values relative to
R
R
R
R
R
R
R
P
I
t
without ext. pull-up resistor
R
I
I
FSK selected
ASK selected
Idle mode
Active mode
Division factor = 10
Division factor = 14
Test input must always be set to
LOW
ol
POUT
POUT
S
Red
Red
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Sense
Sense
= C
ext
S
S
, input matched according to
= 5 V, T
= 1 mA
amb
= 5 V, T
= 5 k
= P
= P
L
= 1 mA
= –1 mA
connected from Pin Sens to
= 56 k
= 100 k
= 56 k
= 100 k
= 56 k
= 100 k
= 56 k
= 56 k
= 68 k
= 82 k
= 100 k
= 120 k
= 150 k
Test Conditions / Pins
(R
= –40 C to +105 C, V
Preliminary Information
Ref_Red
Ref_Red
W
pup
amb
amb
//R
W
W
W
W
W
W
W
W
W
W
W
W
W
, f
, f
= 25 C)
= 25 C)
, f
, f
+
+
Ext
in
in
in
in
D
D
)
= 315 MHz
= 433.92 MHz,
P
P
= 433.92 MHz
= 315 MHz
Red
Red
S
= 4.5 V to 5.5 V, f
V
P
Symbol
ThRESET
D
D
Ref_Red
R
V
V
V
V
V
V
V
V
V
V
P
P
C
C
Pup
t
Oh
OI
Red
Red
Ol
Ih
Ih
Ih
L
L
Il
Il
Il
Il
V
0.8
0.8
0.8
–11.0
–13.5
S
Min.
–3.5
–6.0
–9.0
1.95
–71
–67
–80
–76
–72
–68
–81
–77
–0.3V
39
5
6
0
V
V
V
0
S
S
S
= 433.92 MHz and f
V
S
Typ.
0.08
0.08
–0.14V
–76
–72
–85
–81
–77
–73
–86
–82
2.8
50
U3741BM
0
0
0.2
0.2
0.2
0.2
Max.
3.75
–81
–77
–90
–86
–82
–78
–91
–87
540
0.3
2.5
0.3
61
41
0
0
0
V
V
V
V
= 315 MHz,
S
S
S
S
23 (25)
(peak
level)
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Unit
k
dB
dB
dB
dB
dB
dB
dB
dB
pF
pF
m
V
V
V
V
V
V
V
V
V
V
V
W
s