AMIS-30624 AMI Semiconductor, Inc., AMIS-30624 Datasheet - Page 11

• Manufacturer Part Number: AMIS-30624
• Description: I2c Microstepping Motordriver
• Manufacturer: AMI Semiconductor, Inc.

AMIS-30624 I
Table 6: AC Parameters (cont.)
Notes:
Switch Input and Hardwire Address Input
Motordriver
Charge Pump
SCK
SDA
AMI Semiconductor – Apr. 2007, Rev 3.1, M-20664-003
www.amis.com
F
(1)
(2)
(3)
(4)
(5)
(6)
T
T
F
T
jit_depth
T
T
sw_on
f
pwm
brise
bfall
stab
CP
sw
t
HD,START
The maximum number of connected I
and fall times of the bus signals.
An I
falling edge of SCL.
The maximum t
A Fast-mode I
case if the device does not stretch the LOW period of the SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next data
bit to the SDA line t
Derived from internal oscillator.
See
t
F
START
2
SetMotorParam
C device must internally provide a hold time of at least 300ns for the SDA signal (referred to the V
MOTxx
CPN
CPP
SWI
HW
2
V
C-bus device can be used in a standard-mode I
HD,DAT
ILmax
V
t
IHmin
R
rmax
t
LOW
Scan pulse period
Scan pulse duration
PWM frequency
PWM jitter modulation depth
Turn-on transient time
Turn-off transient time
Run current stabilization time
Charge pump frequency
and
has only to be met if the device does not stretch the LOW period (t
+ t
2
PWM
C Microstepping Motordriver
SU,DATA
t
HD,DATA
regulator.
= 1000 + 250 = 1250ns (according to the standard-mode I
2
C devices is dependent on the number of available addresses and the maximum bus capacitance to still guarantee the rise
(5)
(5)
(5)
t
t
HIGH
SU,DATA
Figure 5: I
2
C bus system, but the requirement t
t
SU,START
PWMfreq = 0
PWMfreq = 1
PWMJen = 1
Between 10% and 90%
2
C Timing Diagrams
11
REPEATED START
(6)
(6)
(6)
LOW
2
C-bus specification) before the SCL line is released.
) of the SCL signal.
SU,DATA
IHmin
≥ 250ns must than be met. This will automatically be the
of the SCL signal) to bridge the undefined region of the
t
20.6
41,2
SP
29
PC20060925.8
t
SU,STOP
1024
22.8
45,6
128
170
140
250
10
32
STOP
Data Sheet
25.0
50,0
t
35
BUF
START
kHz
kHz
kHz
ms
µs
µs
ns
ns
%