Rainbow Electronics T5761 - Manual (Page 33)

33
T5760/T5761
4561B–RKE–10/02
Edge-to-edge time period of the
input data signal for full sensitivity BR_Range0 (default)
BR_Range1
BR_Range2
BR_Range3
t
ee_sig
270
156
89
50
1000
560
320
180
ms
ms
ms
ms
Upper cut-off frequency data filter Upper cut-off frequency
programmable in 4 ranges
via a serial mode word
BR_Range0 (default)
BR_Range1
BR_Range2
BR_Range3
fu
2.8
4.8
8.0
15.0
3.4
6.0
10.0
19.0
4.0
7.2
12.0
23.0
kHz
kHz
kHz
kHz
Reduced sensitivity R
Sense
connected from Pin Sens
to V
S
, input matched according to
Figure 33,
fIN = 868.3 MHz/915 MHz, V
S
= 5 V,
T
amb
= +25 ° C
dBm
(peak
level)
R
Sense
= 56 k W P
Ref_Red
-63 -68 -73 dBm
R
Sense
= 100 k W P
Ref_Red
-72 -77 -82 dBm
Reduced sensitivity variation over
full operating range R
Sense
= 56 k W
R
Sense
= 100 k W
P
Red
= P
Ref_Red
+ D P
Red
D P
Red
5
5 0
0 0
0 dB
dB
Reduced sensitivity variation for
different values of R
Sense
Values relative to R
Sense
= 56 k W
R
Sense
= 56 k W
R
Sense
= 68 k
W
R
Sense
= 82 k W
R
Sense
= 100 k W
R
Sense
= 120 k
W
R
Sense
= 150 k W
P
Red
= P
Ref_Red
+ D P
Red
D P
Red
0
-3.5
-6.0
-9.0
-11.0
-13.5
dB
dB
dB
dB
dB
dB
Threshold voltage for reset V
ThRESET
1.95 2.8 3.75 V
Digital Ports
Data output
- Saturation voltage Low
- max voltage at Pin DATA
- quiescent current
- short-circuit current
- ambient temp. in case of
permanent short-circuit
Data input
- Input voltage Low
- Input voltage High
I
ol
£
12 mA
I
ol
= 2 mA
V
oh
= 20 V
V
ol
= 0.8 V to 20 V
V
oh
= 0 V to 20 V
V
ol
V
ol
V
oh
I
qu
I
ol_lim
t
amb_sc
V
Il
V
ich
13
0.65 ´ V
S
0.35
0.08
30
0.8
0.3
20
20
45
85
0.35 ´ V
S
V
V
V
µA
mA
° C
V
V
DATA_CLK output
- Saturation voltage Low
- Saturation voltage High
IDATA_CLK = 1mA
IDATA_CLK = -1mA V
ol
V
oh
V
S
-0.4 V
0.1
V
S
-0.15 V
0.4 V
V
IC_ACTIVE output
- Saturation voltage Low
- Saturation voltage High
IIC_ACTIVE = 1 mA
IIC_ACTIVE = -1 mA V
ol
V
oh
V
S
-0.4 V
0.1
V
S
-0.15 V
0.4 V
V
Electrical Characteristics (continued)
All parameters refer to GND, T
am b
= -40
°
C to +105
°
C, V
S
= 4.5 V to 5.5 V, f
0
= 868.3 MHz and f
0
= 915 MHz,
unless otherwise specified. (For typical values: V
S
= 5 V, T
amb
= 25
°
C)
Parameters Test Conditions Symbol Min. Typ. Max. Unit