MITSUBISHI M56759FP

MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
DESCRIPTION
PIN CONFIGURATION (TOP VIEW)
The M56759 is a semiconductor integrated circuit designed for a
CD-ROM actuator driver. This device can function 4-channelactuators by 1 chip due to include 4 channel BTL drivers.
Three channels of this device, ch1, ch2 and ch3 can be controlled
by PWM pulse. Two of them, ch1 and ch2 can also act in the
Current Control mode.
Furthermore, this device includes two mute circuits and TSD
function.
1
42
MUTE2
VREF
2
41
MUTE1
VREF0
3
40
SOUT2
IN3-
4
39
SIN2-
IN3+
5
38
IN2+
Vm3
6
37
IN2-
OUT3
7
36
OUT2
VM3(-)
8
35
VM2(-)
VM3(+)
9
34
VM2(+)
FEATURES
● Low saturation voltage (at bootstrap).
● (typical 0.7V at load current 500mA)
● Wide supply voltage range.
(4.5V to 13.2V)
● Low cross-over distortion.
● Two naked Operational Amplifiers
● Divided Motor power supplies into three parts
10
GND
11
VM4(+)
12
VM4(-)
13
IN4AVm2
APPLICATION
CD-ROM
M56759FP/AFP
VCC2
33
GND
32
31
VM1(+)
30
VM1(-)
14
29
OUT1
15
28
IN1-
IN4B-
16
27
IN1+
OP1OUT
17
26
Vm1
OP1-
18
25
SIN1-
OP1+
19
24
SOUT1
OP2+
20
23
VCC1
OP2-
21
22
OP2OUT
Outline 42P2R-D
BLOCK DIAGRAM
VREF0
VREF OP2+ OP2-
3
20 21
22
19 18
A4
-
+
-A2
+
S1
A4
OP2
VM1(+)
VM1(-)
VM2(-)
VM2(+)
28
29
31
30
35
34
36
IN2+
38
37
+
+
+
+
15
Vm2
A1+
-
OP1
+A3
- E1
27
OUT2
IN2-
+
A1
E4 VCC2
CH1
CH4
VREF0
BIAS
CH2
CH3
VCC1
+
+
+
+
16
IN4B-
14
IN4A-
12
VM4(+)
13
VM4(-)
8
VM3(-)
9
VM3(+)
4
IN3IN3+
Hi:Sleep
- A3E2
+
A3
E3
4ch
1ch
2ch
3ch
+A3
- S2
SIN2SOUT2
1
25
- A3
+
IN1+
IN1OUT1
VCC2
17
24
+
SOUT1
SIN1-
2
OP2
OP1
OUT OP1+ OP1- OUT
TSD
39
40
41
42
Vm1
MUTE1
MUTE2
5
7
OUT3
6
Vm3
SLEEP
A1
26
+
10 11 32 33
23
VCC1
GND (4PIN)
+
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
PIN DESCRIPTIONS
Pin No.
1
2
3
4
5
6
7
8
9
10
to
11
12
13
14
15
16
17
18
19
20
21
Symbol
VCC2
VREF
VREF0
IN3IN3+
Vm3
OUT3
VM3(-)
VM3(+)
GND
VM4(+)
VM4(-)
IN4AVm2
IN4BOP1OUT
OP1OP1+
OP2+
OP2-
Pin No.
Function
Bootstrap power supply
Reference voltage input
Reference voltage output
E3 amplifier inverted input
E3 amplifier non-inverted input
Motor power supply-3
22
23
24
25
26
27
E3 amplifier output
CH3 inverted output
CH3 non-inverted output
GND
CH4 non-inverted output
CH4 inverted output
E4 amplifier low gain input
Motor power supply-2
28
29
30
31
32
to
33
34
35
36
E4 amplifier high gain input
OP1 amplifier output
OP1 amplifier inverted input
OP1 amplifier non-inverted input
OP2 amplifier non-inverted input
37
OP2 amplifier inverted input
42
38
39
40
41
Symbol
OP2OUT
VCC1
SOUT1
SIN1Vm1
IN1+
IN1OUT1
VM1(-)
VM1(+)
GND
VM2(+)
VM2(-)
OUT2
IN2IN2+
SIN2SOUT2
MUTE1
MUTE2
Function
OP2 amplifier output
5V power supply
S1 amplifier output
S1 amplifier inverted input
Motor power supply-1
E1 amplifier non-inverted input
E1 amplifier inverted input
E1 amplifier output
CH1 inverted output
CH1 non-inverted output
GND
CH2 non-inverted output
CH2 inverted output
E2 amplifier output
E2 amplifier inverted input
E2 amplifier non-inverted input
S2 amplifier inverted input
S2 amplifier output
CH1, 2 and 3 mute
CH4 mute
ABSOLUTE MAXIMUM RATINGS (Ta=25˚C)
Symbol
VCC2
Vm
VCC1
Io
Vin1
Vin2
Pt
Kθ
Tj
Topr
Tstg
Parameter
Bootstrap power supply
Motor power supply
5V power supply
Output Current
Maximum input voltage of terminals
Power dissipation
Thermal derating
Junction temperature
Operating temperature
Storage temperature
Conditions
pins input voltage
26 , 15 and 6 pins input voltage
23 pin input voltage
1
2
25
, 4 , 5 ,
, 39 pins
14
,
16 , 18 , 19 , 20 , 21 , 27 , 28 , 37 , 38
Free Air
Free Air
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC1
VCC2
Vm1,2,3
5V power supply
Bootstrap power supply
Motor power supply-1, 2, 3
Min.
4.5
Limits
Typ.
5.0
Vm+1.0
5.0
Max.
5.5
Unit
V
V
V
,
41 , 42
pins
Rating
15
15
7.0
700
0 – VCC1
0 – Vm1
1.2
9.6
150
-20 – +70
-40 – +150
Unit
V
V
V
mA
V
W
mW/˚C
˚C
˚C
˚C
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
ELECTRICAL CHARACTERISTICS
(Ta=25˚C, VCC1=Vm1=Vm2=Vm3=5V, VCC2=12V, no-load current
unless otherwise noted)
Limits
Min. Typ. Max.
24
36
1 , 26 , 15 , 6 pins supply current (Vref=Vctl=2.5V)
ICC1
Supply current-1
23 pins[VCC1] supply current (Vref=Vctl=2.5V)
9.5
15
ICC2
Supply current-2
1 , 23 , 26 , 15 , 6 pins supply current (MUTE1,2=H)
500
ICC3
Sleep Mode Supply current-3
0.8
1.20
VsatCH1 Ch1 Saturation voltage
0.8
1.20
VsatCH2 Ch2 Saturation voltage
Top and Bottom saturation voltage.
0.5
0.9
Load current 500mA. At bootstrap.
VsatCH3 Ch3 Saturation voltage
0.6
1.0
VsatCH4 Ch4 Saturation voltage
Vmute-on Mute-on voltage
2.0
Mute-on
0.8
Vmute-off Mute-off voltage
Mute-off
41 and 42 pin input current at 5V input voltage.
170
250
Imute
Mute terminals input current
VinOP
0.5
OP1 and OP2 amplifier Input voltage range
VCC2-1.0
VoutOP OP1 and OP2 amplifier output voltage range Io=±2.0mA
0.5
VCC1-0.5
VofOP
OP1 and OP2 amplifier input offset voltage Vin=2.5V (at buffer)
-10
+10
-1.0 -0.15
0
IinOP
inverted input = non-inverted input = 2.5V
OP1 and OP2 amplifier input current
-100
0
+100
IofOP
inverted input = non-inverted input = 2.5V
OP1 and OP2 amplifier input current offset
2.3
4
GBOP
OP1 and OP2 amplifier GB
VinE
0.5
VCC2-2.0
E1,E2 and E3 amplifier Input voltage range
1.0
VoutE
VCC1-0.5
E1,E2 and E3 amplifier output voltage range No load
-10
VofE
+10
Vin=2.5V (at buffer)
E1,E2 and E3 amplifier input offset voltage
IinE
-1.0 -0.15
0
inverted input = non-inverted input = 2.5V
E1,E2 and E3 amplifier input current
-100
0
+100
IofE
inverted input = non-inverted input = 2.5V
E1,E2 and E3 amplifier input current offset
1.0
VoutS
VCC1-0.5
S1 and S2 amplifier output voltage range No load
VinVREF VREF buffer amplifier Input voltage range
1.5 2.5 VCC1-1.2
2 pin input voltage = 2.5V
VofVREF VREF buffer amplifier offset voltage
-10
+10
Symbol
Parameter
VofCH1
Ch1 output offset voltage
VofCH2
Ch2 output offset voltage
VofCH3
Ch3 output offset voltage
VofCH4
Ch4 output offset voltage
VofS1
S1 output offset voltage
VofS2
S2 output offset voltage
Conditions
when the OUT1 voltage is adjusted at the same
VREFO voltage, at VREF=2.5V
when the OUT2 voltage is adjusted at the same
VREFO voltage, at VREF=2.5V
Unit
mA
mA
µA
V
V
V
V
V
V
µA
V
V
mV
µA
nA
MHz
V
V
mV
µA
nA
V
V
mV
-26
+26
mV
-26
+26
mV
when the OUT3 voltage is adjusted at the same
VREFO voltage, at VREF=2.5V
-26
+26
mV
when the IN4- voltage is adjusted at the same
VREFO voltage, at VREF=2.5V
-26
+26
mV
SOUT1-VREFO (at SI N1[-] = VM1[+] )
at VREF=2.5V
-20
+20
mV
SOUT2-VREFO (at SI N2[-] = VM2[+] )
at VREF=2.5V
-20
+20
mV
GainCH1 Ch1 power amplifier voltage gain
{VM1(+)–VM1(-)}
(OUT1–VREFO)
at VREF=2.5V
13.1
14
14.8
dB
GainCH2 Ch2 power amplifier voltage gain
{VM2(+)–VM2(-)}
(OUT2–VREFO)
at VREF=2.5V
13.1
14
14.8
dB
GainCH3 Ch3 power amplifier voltage gain
{VM3(+)–VM3(-)}
(OUT3–VREFO)
at VREF=2.5V
19.1
20
20.8
dB
GainCH4 Ch4 power amplifier voltage gain
-1 · {VM4(+)–VM4(-)}
(I N4A[-]–VREFO)
at VREF=2.5V
3.17 4.08
4.91
dB
at VREF=2.5V
5.11 6.02
6.85
dB
at VREF=2.5V
5.11 6.02
6.85
dB
GainS1
S1 amplifier voltage gain
GainS2
S2 amplifier voltage gain
{SOUT1 - VREFO}
(VM1[+] - SI N1[-] )
{SOUT2 - VREFO}
(VM2[+] - SI N2[-] )
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
INPUT and OUTPUT CHARACTERISTICS of EACH CHANNELS
<INPUT>
CH1 amplifier
Output of non-inverted Amp.
(Gain = X2.5)
2
3
27
2.5V
28
29
VREF
VREF0
+
+
-
OUT1
-
31 VM1+
+
30
VREFO
0.2V
CH1
IN1+
IN1-
+
E1
-
-
VM1-
<OUTPUT>
VM1+
Output of inverted Amp.
(Gain = X-2.5)
OUT1
VM1-
0.5V
VREFO
GainCH1
Differential voltage gain = X5
0.5V
CH2 amplifier
<INPUT>
Output of non-inverted Amp.
(Gain = X2.5)
2
3
VREF
VREF0
+
+
-
OUT2
-
34 VM2+
+
35
VREFO
0.2V
CH2
38
2.5V
37
36
IN2+
IN2-
+
E2
-
-
VM2-
<OUTPUT>
VM2+
Output of inverted Amp.
(Gain = X-2.5)
OUT2
VM2-
0.5V
VREFO
GainCH2
Differential voltage gain = X5
0.5V
CH3 amplifier
<INPUT>
Output of non-inverted Amp.
(Gain = X5)
2
3
VREF
VREF0
+
+
-
-
9 VM3+
+
8
OUT3
VREFO
0.2V
CH3
5
2.5V
4
7
IN3+
IN3OUT3
GainCH3
+
-
E3
-
VM3-
<OUTPUT>
VM3+
Output of inverted Amp.
(Gain = X-5)
Differential voltage gain = X10
1.0V
Vrefm3
(Vm3/2)
1.0V
VM3-
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
CH4 amplifier
<INPUT>
Vctl4
Output of non-inverted Amp.
(Gain = X5)
VREF
2
3
1.0V
+
VREF0
+
-
-
12 VM4+
+
13 VM4-
VREFO
CH4
IN4B-
2.5V
IN4A-
E4
+
-
16
14
25K
4K
(Gain = X-0.16)
Vctl4
-
VM4-
Output of inverted Amp.
(Gain = X-5)
Differential voltage gain = X1.6
GainCH4
<OUTPUT>
VM4+
0.8V
Vrefm4
(Vm4/2)
0.8V
<INPUT>
S1 amplifier
SIN1SIN1-
5K
10K
VM1+
25
+
VM1+
0.5V
24 SOUT1
<OUTPUT>
31
3
5K
10K
GainS1
Voltage gain = X2
SOUT1
VREFO
VREFO
1.0V
<INPUT>
S2 amplifier
SIN2SIN2-
5K
10K
VM2+
39
+
VM2+
40 SOUT2
<OUTPUT>
34
3
5K
GainS2
0.5V
10K
Voltage gain = X2
SOUT2
VREFO
VREFO
1.0V
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
<BASICALLY CHARACTERISTICS>
This data is an example for typical sample.
Output saturation voltage and Load current characteristic.
BOOTSTRAP
CH1
Vm1=VCC1=5V,VCC2=12V
VM1+,VM1-
0.3V
4.0
3.0
2.0
0.35V
0.5V
CH2
VM1+
Vm1=VCC1=5V,VCC2=12V
5.0
Output Voltage (V)
Output Voltage (V)
5.0
1.0
0.3V
4.0
VM2+,VM2-
3.0
2.0
0.5V
VM2+
0.3V
1.0
VM1-
0.4 0.5 0.6
Load Current (mA)
0.2
CH3
0.22V
0.46V
3.0
2.0
0
0.5V
VM3+,VM3-
0.24V
0.2
0.4 0.5
0.6
0.8
VM2-
0.2
0.4 0.5 0.6
Load Current (mA)
CH4
0.8
1.0
Vm2=VCC1=5V,VCC2=12V
5.0
VM3+,VM3-
4.0
1.0
0
1.0
Vm3=VCC1=5V,VCC2=12V
5.0
Output Voltage (V)
0.8
Output Voltage (V)
0
4.0
VM4+,VM4-
0.3V
0.6V
3.0
0.6V
2.0
0.3V
VM4+,VM4-
1.0
0
1.0
0.2
Load Current (mA)
0.4 0.5
0.6
0.8
1.0
Load Current (mA)
NON-BOOTSTRAP
CH1
Vm1=VCC1=VCC2=5V
CH2
VM1+,VM1-
4.0
1.0V
3.0
2.0
VM1+
0.35V
0.5V
Vm1=VCC1=VCC2=5V
5.0
Output Voltage (V)
Output Voltage (V)
5.0
1.0
VM2+,VM2-
4.0
1.0V
3.0
2.0
0.5V
VM2+
0.3V
1.0
VM1-
0
0.2
0.4 0.5 0.6
Load Current (mA)
CH3
0.8
Vm3=VCC1=VCC2=5V
5.0
0
1.0
VM2-
0.2
0.4 0.5 0.6
Load Current (mA)
CH4
Output Voltage (V)
Output Voltage (V)
VM4+,VM4-
1.0V
3.0
2.0
0.5V
0
0.24V
0.2
0.6
Load Current (mA)
0.8
4.0
1.0V
3.0
0.6V
2.0
0.3V
VM4+,VM4-
1.0
VM3+,VM3-
0.4 0.5
1.0
Vm2=VCC1=VCC2=5V
5.0
VM4+,VM4-
4.0
1.0
0.8
1.0
0
0.2
0.4 0.5
0.6
Load Current (mA)
0.8
1.0
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
THERMAL DERATING
6. 0
(W)
With infinite heatsink
Power dissipation (Pdp)
5. 0
4. 5
4. 0
Without heatsink
3. 0
2. 0
1. 2
1. 0
0
25
50
75
100
125 150
(˚C)
Ambient temperature (Ta)
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
APPLICATION CIRCUIT No.1
•single input (linear signal)
•Direct voltage control
2.5V
2
5V
15
-
R1
5K
-
25
+
IN4B-
+
-
VREFO
4K
+
25K
-
IN1-
12.5K
2.5K 12.5K
5K
13
+
VM1-
-
10K 12.5K
TRAY
2.5K 12.5K
12
M
+
VM1+
Ra
FOCUS
10K
VM4+ VM4-
+
OUT1
5K
31
16
14
-
2.5K
IN4A-
R2
IN1+
10K
5K
27
2.5K 12.5K
Vm1
26
5K
12.5K
VCC1
23
VCC2
12.5K
+
30
5V
+
10K
10K
3
VCTL4
24
10K
VREF Vm2
ch1, ch2,
ch3
41
28
29
VREF0
ch4
VCTL1
MUTE2 MUTE1 SOUT1 SIN1-
42
12V
1
2.5K 12.5K
+
GND
-
5K
-
VM2-
2.5K 12.5K
7
4
IN3+
VREFO
IN3-
+
10K
5
+
-
Vm3
+
6
5V
10K 10K
+
-
OP2OUT
-
OP1OUT
+
OP2+ OP2-
10K
20
21
22
VCTL3
TSD
5K
OP1+ OP1-
cf. R1=10K,R2=14K
Voltage gain = GainCH1 • R2 / R1
= 5 • 14 / 10
= 7 (V/V) =16.9dB
if. Ra=10
Current gain = 7/10 = 0.7 (A/V)
SOUT2
19
18
17
-
SIN2-
VCTL2
40
+
IN2+
39
-
IN2-
VREFO
5K
OUT3
36
37
38
9
-
+
OUT2
5K
8
M
2.5K 12.5K
+
10K
34
5K
-
VM2+
10K 12.5K
VM3- VM3+
2.5K 12.5K
TRAVERSE
+
TRACKING
35
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
APPLICATION CIRCUIT No.2
•single input (linear signal)
•Direct current control (for FOCUS and TRACKING)
5V
15
-
25
-
S1
IN4B-
+
+
4K
+
25K
E1
-
IN1-
12.5K
-
2.5K
5K
13
+
VM1-
Ra
-
FOCUS
2.5K 12.5K
10K 12.5K
2.5K 12.5K
Vm1
26
5K
12.5K
VCC1
23
VCC2
12.5K
+
30
12V
1
2.5K 12.5K
+
GND
5K
-
VM2-
8
2.5K 12.5K
+
IN3+
10K
7
4
5
VREFO
-
+
IN2+
-
SIN2-
+
-
Vm3
+
-
OP2+ OP2-
+
OP2OUT
OP1OUT
-
cf. R1=10K,R2=14K,Rs=1
Current gain = R2 / [R1 · GainS1 · Rs]
= 14 / [10 · 2 · 1]
= 0.7 (A/V)
10K
+
19
18
17
10K 10K
6
5V
20
21
22
VCTL3
TSD
5K
OP1+ OP1-
SOUT2
40
-
IN2-
VREFO
VCTL2
39
OUT3 IN3-
36
5K
9
-
+
OUT2
5K
M
2.5K 12.5K
+
10K
34
5K
-
VM2+
10K 12.5K
VM3- VM3+
2.5K 12.5K
TRAVERSE
-
+
TRACKING
35
37
38
TRAY
2.5K 12.5K
12
M
+
VM1+
Rs
10K
VM4+ VM4-
+
OUT1
5K
31
IN4A-
IN1+
10K
5K
16
14
-
VREFO
*Phase compensation filter
5K
27
5V
10K
+
10K
2.5V
2
VCTL4
24
10K
3
VREF Vm2
ch1, ch2,
ch3
MUTE2 MUTE1 SOUT1 SIN1-
R2
R1
41
28
29
VREF0
ch4
VCTL1
42
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
APPLICATION CIRCUIT No.3
•Differential PWM input (for FOCUS, TRACKING and TRAVERSE)
•Direct voltage control
+
IN4B-
+
R1
R1
4K
-
12.5K
-
2.5K
13
+
VM1-
-
5K
2.5K 12.5K
Vm1
26
5K
12.5K
VCC1
23
VCC2
12.5K
+
30
12V
1
2.5K 12.5K
-
+
5K
-
VM2-
C3
7
R6
4
C3
+
R5
R5
IN3+
5
+
-
Vm3
+
6
5V
PWM2
-
OP2+ OP2-
+
OP2OUT
-
OP1OUT
+
20
21
22
PWM1
TSD
10K 10K
10K
R6
-
10K
5K
OP1+ OP1-
19
18
17
SOUT2
40
+
SIN2-
PWM1
PWM2
39
-
IN2+
R3
R3
5K
VREFO
2.5K 12.5K
IN2-
R4
C2
37
38
OUT3 IN3-
36
R4
9
-
+
OUT2
5K
8
M
2.5K 12.5K
+
10K
34
5K
-
VM2+
10K 12.5K
VM3- VM3+
2.5K 12.5K
TRAVERSE
+
GND
VREFO
TRACKING
35
C2
TRAY
2.5K 12.5K
10K 12.5K
12
M
2.5K 12.5K
-
10K
VM4+ VM4-
+
5K
+
VM1+
FOCUS
VREFO
31
IN4A-
25K
+
IN1- OUT1
R2
C1
28
29
16
14
-
IN1+
10K
5K
27
5V
5V
15
-
25
C1
2.5V
2
-
5K
3
VCTL4
10K
10K
+
PWM1
PWM2
24
10K
VREF Vm2
ch1, ch2,
ch3
41
R2
VREF0
ch4
MUTE2 MUTE1 SOUT1 SIN1-
42
MITSUBISHI <CONTROL / DRIVER IC>
M56759FP/AFP
4-CHANNEL ACTUATOR DRIVER
APPLICATION CIRCUIT No.4
5V
15
+
IN4B-
+
-
10K
5K
4K
-
12.5K
+
2.5K 12.5K
2.5K 12.5K
5K
13
+
VM1-
-
10K 12.5K
2.5K 12.5K
Vm1
26
5K
12.5K
VCC1
23
VCC2
12.5K
+
30
12V
1
2.5K 12.5K
+
GND
5K
-
8
7
R5
R5
IN3+
+
Vm3
-
6
-
OP2+ OP2-
+
OP2OUT
-
OP1OUT
+
20
21
22
PWM2
5V
PWM1
TSD
10K
C3
R6
4
5
-
+
10K 10K
VREFO
C3
R6
+
10K
5K
OP1+ OP1-
19
18
17
SOUT2
40
-
SIN2-
39
+
IN2+
R4
5K
-
IN2-
C2
VREFO
R4
R3 R3
2.5K 12.5K
OUT3 IN3-
5K
36
C2
9
-
+
PA
OUT2
34
M
2.5K 12.5K
+
10K
5K
-
VM2+
10K 12.5K
VM3- VM3+
2.5K 12.5K
TRAVERSE
-
+
VM2-
TRACKING
35
37
38
TRAY
+
VM1+
FOCUS
10K
12
M
5K
31
16
14
-
2.5K
VM4+ VM4-
IN1- OUT1
28
29
IN4A-
25K
+
27
5V
+
5K
25
IN1+
C1
2.5V
2
-
R2
VREFO
C1
10K
10K
3
VCTL4
24
10K
VREF Vm2
R2
OP1
ch1, ch2,
ch3
MUTE2 MUTE1 SOUT1 SIN1-
41
VREF0
ch4
PWM1
PWM2
42
R1
R1
•Differential PWM input (for FOCUS, TRACKING and TRAVERSE)
•Direct current control (for FOCUS and TRACKING)
PWM1
PWM2