iC-MD RS-422 QUADRATURE
ENCODER RECEIVER/COUNTER WITH SPI AND BiSS
Rev A1, Page 4/23
ELECTRICAL CHARACTERISTICS
Operating Conditions: VDD = 3 . . . 5.5 V, Tj = -40 . . . 125 °C, unless otherwise noted.
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Typ.
Max.
General
001 VDD
Voltage Supply VDD
3
5.5
15
V
002
I(VDD)
Supply Current in VDD
TTL input configuration, 48 bits counter
10 MHz signal in AP (0º phase) and AN
(90º phase), BP, BN, CP and CN to GND
mA
003 Vc()hi
004 Vc()lo
Clamp Voltage hi
Clamp Voltage lo
Vc()hi = V() - VDD, I() = 1 mA
Vc()hi = V() - VDD, I() = 10 mA
0.4
1.5
V
V
-1.5
-0.25
Digital Inputs: MA, SLI, SCK, MOSI, NCS, TPI
101 Vt()hi
102
Input Threshold Voltage hi
Input Threshold Voltage lo
2
V
Vt()lo
VDD = 4.5 . . . 5.5 V
VDD = 3 . . . 5.5 V
0.8
0.75
V
V
103 Vt()hys
104 Ipd()
Input Hysteresis
150
2
250
30
mV
µA
Input Pull-down Current at
SCK, MOSI, TPI
V() = 1 V . . . VDD
75
-2
105 Ipu()
Input Pull-Up Current at
NCS, MA
V() = 0 V . . . VDD - 1 V
-75
-30
µA
106
fclk(MA)
Permissible Clock Frequency at
MA
NBISS = 1 (SSI protocol)
NBISS = 0 (BiSS protocol)
4
10
MHz
MHz
107 Voc()
108
Pin Open Voltage at SLI
Internal Resistance at SLI
42
46.5
51
%VDD
Ri()
Referenced to VDD
Referenced to GND
70
40
170
110
kΩ
kΩ
109 fclk(SCK) Permissible Clock Frequency at
SCK
10
MHz
Bidirectional Pins: NWARN, NERR
201 Ipu()
202 Vt()hi
Pull-Up Current
V() = 0 V . . . VDD - 1 V
-750
-100
250
-10
2
µA
V
Input Threshold Voltage hi
Input Threshold Voltage lo
203
Vt()lo
VDD = 4.5 . . . 5.5 V
VDD = 3 . . . 5.5 V
0.8
0.75
V
V
204
Vt()hys
Input Hysteresis
150
mV
205 Vs()lo
206 Isc()lo
ABZ Counter
301 R()
Saturation Voltage lo
I() = 4 mA
450
100
mV
mA
Short-Circuit Current lo
V() = 0 V . . . VDD
4
Counter Resolution
48
40
bit
302 fcnt()
Permissible Count Frequency
Permissible A/B Phase Distance
MHz
303
PHab2
edge A vs. edge B and vice versa
TTL=1
TTL=0, LVDS=X
5
13
ns
ns
Power-Down Reset and Oscillator
601 VDDon
602 VDDoff
603 VDDhys
Power-On Supply Voltage
2.9
5.3
V
V
Power-Down Voltage
Power-On Hysteresis
2.1
35
VDDon - VDDoff
100
mV
MHz
604 Frq(CLK) Internal Oscillator Frequency
1.4
Digital Outputs: SLO, MISO, ACT0, ACT1
701 Vs()hi
702 Vs()lo
703 Isc()hi
704 Isc()lo
Saturation Voltage hi
Saturation Voltage lo
Short-Circuit Current hi
Short-Circuit Current lo
Vs()hi = VDD - V(), I() = -4 mA
I() = 4 mA
450
450
mV
mV
mA
mA
V() = 0 . . . VDD
-115
V() = 0 . . . VDD
100
ICHAUS [ IC-HAUS GMBH ]
