LM9830VJD/NOPB National Semiconductor, LM9830VJD/NOPB Datasheet - Page 20

• Manufacturer Part Number: LM9830VJD/NOPB
• Description: IC SCANNER COLOR DOC 100-TQFP
• Manufacturer: National Semiconductor

Specifications of LM9830VJD/NOPB

• Number Of Bits: 12
• Number Of Channels: 3
• Power (watts): 350mW
• Voltage - Supply, Analog: 5V
• Voltage - Supply, Digital: 4.5 V ~ 5.5 V
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *LM9830VJD; *LM9830VJD/NOPB; LM9830VJD

Address
STEPPER MOTOR CONTROL SETTINGS 1
4A
4B
4C
4D
4E
44
45
46
47
48
49
4F
50
51
52
53
54
55
56
57
n (Line Skipping)
Part of the “n out of m” function, consisting of
registers 0B (bits 4-7) 44, 45 (bit 5), and 5A.
Full/Microstepping
Current Sensing Phases
= 0 for fullstepping
= 1 for microstepping
Stepper Motor Phase A Polarity
Stepper Motor Phase B Polarity
A, B, A, and B stepper motor status
Line Skipping Phase
Part of the “n out of m” function, consisting of
registers 0B (bits 4-7) 44, 45 (bit 5), and 5A.
Scanning Step Size - MSB
Scanning Step Size - LSB
Fast Feed Step Size - MSB
Fast Feed Step Size - LSB
Fullsteps to Skip at Start of Scan - MSB
Fullsteps to Skip at Start of Scan - LSB
Fullsteps to Scan after Paper Sensor #2
trips -MSB
Fullsteps to Scan after Paper Sensor #2
trips -LSB
Pause scanning, stop/reverse motor
Resume scanning, start motor
Full steps to reverse when buffer is full
Acceleration Profile (stopped)
Acceleration Profile (25%)
Acceleration Profile (50%)
Default Phase Difference - MSB
Default Phase Difference - LSB
Lines to Process After Pause Scan Signal
Lines to Discard after Resume Scan
Signal
Kickstart Steps (fullstepping mode)
Hold Current Timeout
Stepper Motor PWM Frequency
Stepper Motor PWM Set Duty Cycle
Function
D
7
t t t t t t t t
n n n n n n n n
n n n n n n n n
n n n n n n n n
n n n n n n n n
n n n n n n n n Pause scan when buffer is n kbytes full
n n n n n n n n Resume scan when buffer is n kbytes full
n n n n n n n n Used to calculate when motor resumes after reversing
n n n n n n n n
n n n n n
n n n n n n n n
D
6
D
0
1
n n n n n n The step size of one microstep while scanning, in
n n n n n n The step size of one microstep while fast feeding, in
n n n n n n When scan starts, paper is fed forward n full steps (0 -
n n n n n n Adds a delay of n (0-16383) full steps between when
n n n n n n n (0-63) full steps (0 = do not reverse)
n n
n n n
n n n n n n = n/64 (default = 0)
5
20
D
4
0
1
D
0
1
n n
3
D
0
1
n n n
n n n Motor gets maximum current for first n (0-7) full steps
2
D
1
0
1
n n n (0-3) full step time units pause while stopped
D
0
0 Full Step Mode
1 MicroStepping Mode
n lines saved in SRAM for every m lines (register 5A)
scanned, function bypassed if register value = 0.
n (lines saved per m lines scanned) = 256 - t
t = 256 - n
If t = 0 then function is bypassed
1 Phase - No microstepping, just kickstart/stop
functions
2 Phases - necessary for microstepping
Positive (A/B/A/B Output high = winding energized)
Negative (A/B/A/B output low = winding energized)
Positive (A/B/A/B Output high = winding energized)
Negative (A/B/A/B output low = winding energized)
A, B, A, and B output pins in Tri-State
A, B, A, and B output pins active
Red sensor data arrives before Green sensor
Blue sensor data arrives before Green sensor
units of pixel periods (minimum 2).
units of pixel periods (minimum 2).
16383) at highest speed. For “zooming” in flatbeds
Paper Sensor #2 trips and when the scanning bit is
reset, terminating the scan/motor movement.
n (0-3) full steps at 25% speed
n (0-3) full steps at 50% speed
and stopping. 1 < n < 65535
n (0-7) lines. This only applies if the motor doesn’t
reverse (reverse steps = 0).
n (0-7) lines. This only applies if the motor doesn’t
reverse (reverse steps = 0).
Should be set to same value as bits 0-2.
Full step time units (1-31), 0 = no hold current
=CRYSTAL IN/(4*n) (0 < n < 256)
=CRYSTAL IN/(4*256) (n = 0)
Value
http://www.national.com