2. Parameters
Refering to the test circuit with generator signal
f = 77500 Hz ± 5 Hz
pulse modulation of RF-signal from 100% to 25 %
during modulation time t = 200 ms,
V
CC
= 1.4 V ; V
PON
= 0 V ; T
a
= 25 °C
unless specified otherwise
min.
Supply voltage range
(+5 °C < T
a
< +55 °C)
supply voltage range
(-25 °C < T
a
< +85 °C)
current consumption
(normal operating)
current consumption ( Stand - by )
Switch current I
PON
( V
PON
= ground )
Input voltage
Input impedance of the
RF amplifier
Input impedance of the
booster amplifier
Output impedance of the
RF segment ( A1 )
Output impedance of the
RF segment ( A2 )
Amplification RF segment A1
Range of input voltage
booster amplifier
Internal resistance of the
demodulator
Output voltage of the demodulator
Control time
for
∆V
i
= 0.1 mV - 1 mV
for
∆V
i
= 1 mV - 0.5 mV
Output pulse width
at transmitter pulse width =200 ms
for V
R
= 1.4 V, V
iE
= 3 µV
30
3
1.2
typ.
1.4
max.
2.2
unit
V
1.4
2.2
V
600
1000
µA
<1
-15
10
-50
100000
µA
µA
µV
kΩ
750
95
kΩ
0.3
kΩ
7.5
kΩ
53
450
dB
µV
70
kΩ
200
mV
pp
0.8
5.0
s
s
180
195
220
ms
4
09/00
AK2125
GSG [ GUNTER SENICONDUCTOR GMBH. ]
