AS3931 View Datasheet(PDF) - austriamicrosystems AG
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Description
Manufacturer
AS3931 Datasheet PDF : 31 Pages
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AS3931
Datasheet - Electrical Characteristics
6 Electrical Characteristics
TAMB = -20° to +65° C, VCC = 3.0 V, fIN = 20 kHz, register settings as after POR, CS = low, transmission protocol according to Figure 15,
Figure 16 and application circuit according to Figure 1 unless otherwise specified.
Table 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min
General
fIN
LF input carrier frequency
range
19
BR
Half-bit rate1
2.704
BM
Manchester Bit Rate2
1.352
W
Manchester Code Word3
NPRE
Preamble half-bits4
8
VREG
Regulator Voltage5
VCC = 2.6 V to 5.5 V
2.30
TPOR
Power On Reset time6
VCC = 2.4 V to 5.5 V
5
G regulator off,
VCC = 2.4 V;
A t TAMB = 27° C
sleep mode
standby mode
receive mode
s n regulator off,
sleep mode
VCC = 2.4V to
e 3.5V;
standby mode
TAMB = 27° C
m t ICC
operating current
sleep mode
a n regulator on,
TAMB = 27° C
standby mode
receive mode
o regulator on,
c RSSI-step =
low;
TAMB = 27° C
standby mode
l RSSI buffer operating
a IBUF
current7
No load at RSSI-Pin
nic ΔVCC
VCC transient compliance8
recovery time = 10 ms; regulator on8,
2.6 V < VCC < 5.5 V for VCC after step
recovery time = 10 ms; regulator off8;
2.4 V < VCC < 5.5 V for VCC before step
h normal operation; TAMB = 27º
ec ZIN
Differential small sig. input
impedance
input attenuator active;
TAMB = 27º
input shortcutting active;
TAMB = 27º
TfXTAL
crystal oscillator frequency
Crystal type: CC4 from MicroCrystal9
Typ Max
150
2.731 2.758
1.365 1.379
still96
2.4
2.60
0.3
6.5
6.7
0.5
6.8
0.8
1.5
7.0
8.8
7.2
9
6.6
2
2
0.3
2
1.5
0.5
32.768
valid Units
kHz
kB/s
kB/s
hex
V
ms
µA
µA
µA
µA
µA
µA
µA
V
V
MΩ
kΩ
kΩ
kHz
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Revision 6.2
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