AMIS-30521 AMI Semiconductor, Inc., AMIS-30521 Datasheet - Page 6

• Manufacturer Part Number: AMIS-30521
• Description: Micro-stepping Motor Driver
• Manufacturer: AMI Semiconductor, Inc.

AMIS-30521 Micro-stepping Motor Driver
Symbol
f
f
f
f
Tb
Tb
T
f
T
T
6.4 AC Parameters
The AC parameters are given for V
Table 6: AC Parameters
6.5 SPI Timing
Table 7: SPI Timing Parameters
Symbol
t
t
t
t
t
t
t
t
osc
PWM
j
d
CP
CLK
CLK_HIGH
CLK_LOW
SET_DI
HOLD_DI
CSB_HIGH
SET_CSB
SET_CLK
H2L
CPU
CLR
Internal Oscillator
Motordriver
Digital Outputs
Charge Pump
CLR Function
AMI Semiconductor – June 2007, M-20683-001
www.amis.com
rise
fall
Pin(s)
CPN CPP Charge pump frequency
MOTxx
MOTxx turn-on voltage slope, 10% to 90%
MOTxx turn-off voltage slope, 90% to 10%
MOTxx Start-up time of charge pump
ERRB
CLR
DO
Parameter
SPI clock period
SPI clock high time
SPI clock low time
DI set up time, valid data before rising edge of CLK
DI hold time, hold data after rising edge of CLK
CSB high time
CSB set up time, CSB low before rising edge of CLK
CLK set up time, CLK low before rising edge of CSB
Parameter
Frequency of internal oscillator
PWM frequency
Double PWM frequency
PWM Jitter frequency
PWM Jitter depth
Output fall-time from V
Hard reset duration time
BB
CLK
DI
CS
and temperature in their operating ranges.
inH
t
SET_CSB
to V
0,2 V
t
SET_DI
inL
0,8 V
CC
VALID
CC
0,2 V
CC
t
CLK_HI
t
HOLD_DI
t
Remark/Test Conditions
Frequency depends only on
internal oscillator
EMC[1:0] = 00
EMC[1:0] = 01
EMC[1:0] = 10
EMC[1:0] = 11
EMC[1:0] = 00
EMC[1:0] = 01
EMC[1:0] = 10
EMC[1:0] = 11
Capacitive load 400pF and pull-
up resistor of 1.5 kΩ
Spec external components
CLK
Figure 4: SPI Timing
0,8 V
CC
6
t
CLK_LO
t
SET_CLK
0,2 V
0,2 V
CC
CC
PC20070608.1
Min.
100
100
100
100
2.5
50
50
Min.
20.8
41.6
1
3.6
20
Typ.
Typ.
22.8
45.6
150
100
150
100
250
tbd
tbd
50
25
50
25
4
Max.
Max.
24.8
49.6
4.4
50
90
Data Sheet
% f
Unit
Unit
MHz
V/µs
V/µs
V/µs
V/µs
V/µs
V/µs
V/µs
V/µs
µs
ns
ns
ns
ns
µs
ns
ns
kHz
kHz
kHz
Hz
ns
µs
PWM