IC-TW11 Datasheet, PDF (8/25 Pages) IC-Haus GmbH – 10-BIT ULTRA LOW POWER MAGNETIC ABSOLUTE ROTARY ENCODER

iC-TW11 10-BIT ULTRA LOW POWER^preliminary
MAGNETIC ABSOLUTE ROTARY ENCODER
OPERATING REQUIREMENTS: SPI Interface
Operating conditions: V_CORE = 3.0 to 3.6 V, V_IO = 1.7 to V_CORE, Tj = -40 to +125 °C.
Item Symbol Parameter
No.
Conditions
SPI Interface Timing
I001 t_C1
I002 t_D1
I003 t_D2
I004 t_S1
Permissible Clock Cycle Time
Clock Signal Lo Level Duration
Clock Signal Hi Level Duration
Setup Time:
xSS lo before SCLK lo → hi
see Elec. Char. No.: 303
I005 t_H1
Hold Time:
xSS lo after SCLK hi → lo
I006 t_W1
Wait Time:
between xSS lo → hi and
xSS hi → lo
sup = 1 (no measurement)
sup = 0 (refer to Table 22)
I007 t_W2
Wait Time:
between IRQ_OUT notification and
xSS hi → lo
I008 t_S2
Setup Time:
SI stable before SCLK lo → hi
I009 t_H2
Hold Time:
SI stable after SCLK lo → hi
I010 t_P1
Propagation Delay:
SO stable after xSS hi → lo
I011 t_P2
Propagation Delay:
SO high impedance after xSS lo → hi
I012 t_P3
Propagation Delay:
SO stable after SCLK hi → lo
Rev B1, Page 8/25
Min.
Unit
Max.
1/f(SCLK)
15
ns
15
ns
50
ns
50
ns
5
µs
300
µs
1
µs
5
ns
10
ns
25
ns
25
ns
25
ns
xSS
SCLK
SI
SO
t_S1
t_S2
t_P1
t_W1
t_H1
t_C1
t_H2
t_P3
Figure 1: SPI Timing
t_P2
Hi-Z
t_D1
t_D2