iC-TW8 16-BIT SIN/COS INTERPOLATOR
WITH AUTO-CALIBRATION
Rev A2, Page 10/12
OPERATING REQUIREMENTS: SPI/1-wire Interface
Operating Conditions: AVDD = DVDD = +3.1 ... +5.5 V, AVSS = DVSS = 0 V, Tj = -40...125 °C
Item Symbol
No.
Parameter
Conditions
Unit
Min.
Max.
SPI Interface Timing
I001 txSS_set Setup Time: SPI_xSS hi → lo before
15
25
ns
ns
SPI_SCLK lo → hi
I002 txSS_hold Hold Time: SPI_xSS lo after
SPI_SCLK lo → hi
I003 txSS_hi
I004 tSI_set
SPI_xSS Signal Duration hi
15
5
ns
ns
Setup Time: SPI_SI stable before
SPI_SCLK lo → hi
Hold Time: SPI_SI stable after
I005 tSI_hold
10
ns
SPI_SCLK lo → hi
SPI_SCLK Clock Frequency
SPI_SCLK Signal Duration hi
SPI_SCLK Signal Duration lo
I006 f(SCLK)
I007 tC_hi
I008 tC_lo
I009 tSO_p
24
MHz
ns
10
10
ns
Propagation Delay:
SPI_SO stable after SPI_SCK hi → lo
Propagation Delay:
15
15
ns
I010 tSO_p2
ns
SPI_SO high impedance after
SPI_xSS lo → hi
t
xSS_hi
SPI_xSS
input
t
t
t
t
xSS_hold
xSS_set
C_hi
C_lo
SPI_SCLK
input
t
t
SI_set
SI_hold
SPI_SI
input
MSB in
LSB in
tristate
SPI_SO
output
Figure 3: SPI Write Timing.
t
xSS_hi
SPI_xSS
input
t
t
t
C_hi
C_lo
xSS_hold
SPI_SCLK
input
SPI_SI
input
don’t care
t
t
t
SO_p
SO_p
SO_p2
SPI_SO
output
MSB out
LSB out
Figure 4: SPI Read Timing.
ICHAUS [ IC-HAUS GMBH ]
