AS8221
Data Sheet - Electrical Characteristics
Table 3. Electrical Characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Receiver
RBP, RBM
RDIFF
VBPidle
Idle mode; RBUS=∞
Idle mode; RBUS=∞
BP, BM input resistance
10
20
25
50
40
80
KΩ
KΩ
BP, BM differential input
resistance
Non-low-power modes;
VTxEN = VIO
Load on BM/BM: 40Ω || 100pF
,
Idle voltage in non-low-power
modes on pin BP, BM
0.4 *
VCC
0.5 *
VCC
0.6 *
VCC
V
VBMidle
VBPidle_low, VBMidle_low
IBPidle
Low-power modes
Load on BM/BM: 40Ω || 100pF
Idle voltage in low-power modes
on pin BP, BM
-0.2
0
0
2
2
7
+0.2
7.5
V
Absolute idle output current on
pin BP
-40V < VBP < 50V
-40V < VBM < 50V
mA
mA
µA
Absolute idle output current on
pin BM
IBMidle
0
7.5
IBPleak
,
V
BP = VBM = 5V, VCC = 0V,
VBAT = 0V; VIO = 0V
Absolute leakage current, when
not powered
0
+25
IBMleak
Non-low-power modes;
Activity detection differential input
voltage high
VRECEIVE_COM
:
VBUSActiveHigh
150
225
400
mV
mV
-10V < (VBP, VBM) < 15V
Non-low-power modes;
Activity detection differential input
voltage low
VRECEIVE_COM
:
VBUSActiveLow
-400
-225
-150
-10V < (VBP, VBM)< 15V
Pre-condition: activity already
detected. Non-low-power modes;
Data1 detection differential input
voltage
VData1
150
225
300
mV
VRECEIVE_COM
:
-10V < (VBP, VBM)< 15V
Pre-condition: activity already
detected. Non-low-power modes;
Data0 detection differential input
voltage
VData0
-300
-225
-150
10
mV
%
VRECEIVE_COM
:
-10V < (VBP, VBM)< 15V
2 x (⎜⎜VData0⎜- ⎜VData1⎜⎜) /
(⎜VData0⎜+⎜VData1⎜)
(see footnote 2)
Mismatch between Data0 and
Data1 differential input voltage
VDataErr
Max. common mode voltage
range when receiving
VRECEIVE_COM
tBUS_RxD10
Non-low-power modes
-10
+15
80
V
C
RxD = 15 pF
Delay from BUS to RxD negative
edge
36
36
ns
(see footnote 3)
CRxD = 15 pF
Delay from BUS to RxD positive
edge
tBUS_RxD01
80
ns
ns
(see footnote 3)
CRxD = 15 pF
(see footnote 3)
tBIT
Bit time
54
C
RXD=15 pF;
|tBUS_RxD10- tBUS_RxD01
|
Delay time from BUS to RxD
mismatch
tRxD_ASYM
0
2
5
5
ns
ns
(see footnote 3)
(see footnote 4)
80% - 20% of VRxD
RxD=15 pF
(see footnote 3)
;
tRxD_FALL
Fall time RxD voltage
C
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