Harman Kardon HD 755 (serv.man9) Service Manual ▷ View online
AN8849SB
■
Electrical Characteristics at T
a
=
25
°
C (continude)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
Tracking error amp. (continued)
Tracking error amp.
B
TRH
V
CC1
=
5 V, V
CC2
=
3.3 V
−
8.35
−
6.35
−
4.35
dB
balance relative output 2
−
H
V
TB
=
V
REF2
+
0.5 V
Tracking error amp.
B
TRL
V
CC1
=
5 V, V
CC2
=
3.3 V
4.35
6.35
8.35
dB
balance relative output 2
−
L
V
TB
=
V
REF2
−
0.5 V
Tracking error amp.
G
TRF
V
CC1
=
5 V, V
CC2
=
3.3 V
−
4.5
0
dB
frequency characteristics
f
=
30 kHz, 500 kHz
Tracking error amp.
B
TR4
V
CC1
=
5 V, V
CC2
=
3.3 V
3.3
4.3
5.3
GCTRL gain ratio
×
4
V
GC
=
V
REF2
CROSS detection
CROSS high-level output
V
CR-H
V
CC1
=
5 V, V
CC2
=
3.3 V, f
=
10 kHz
4.2
V
CROSS low-level output
V
CR-L
V
CC1
=
5 V, V
CC2
=
3.3 V, f
=
10 kHz
0.8
V
RF addition amp.
RF addition amp.
V
RAOF
V
CC1
=
5 V, V
CC2
=
3.3 V
−
200
0
200
mV
output offset voltage
RF addition amp. addition gain
G
RAD
V
CC1
=
5 V, V
CC2
=
3.3 V
−
2.1
0
2.1
dB
RF addition amp.
∆
G
RAD1
V
CC1
=
5 V, V
CC2
=
3.3 V
−
1.0
0
1.0
dB
addition relative gain 1
RF addition amp.
∆
G
RAD2
V
CC1
=
5 V, V
CC2
=
3.3 V
−
1.0
0
1.0
dB
addition relative gain 2
RF addition amp.
∆
G
RAD3
V
CC1
=
5 V, V
CC2
=
3.3 V
−
1.0
0
1.0
dB
addition relative gain 3
RF addition amp.
G
RADA
V
CC1
=
5 V, V
CC2
=
3.3 V
9.9
12.0
14.1
dB
full-addition gain
RF addition amp. full-addition
G
RADDF
V
CC1
=
5 V, V
CC2
=
3.3 V
−
3.1
−
1.6
1.4
dB
frequency characteristics
*
f
=
500 kHz, 30 MHz
Variable EQ characteristics
EQ characteristics
×
1
−
1
*
G
EQ1
−
1
f
=
100 kHz
−
1.5
0
1.5
dB
EQSW
=
V
REF2
−
0.5 V
EQ characteristics
×
1
−
3
*
G
EQ1
−
3
f
=
500 kHz
0.5
2.0
3.5
dB
EQSW
=
V
REF2
−
0.5 V
EQ characteristics
×
20
−
1
*
G
EQ20
−
1
EQSW
=
V
REF2
+
0.5 V
−
1.5
0
1.5
dB
f
=
2 MHz
EQ characteristics
×
20
−
3
*
G
EQ20
−
3
EQSW
=
V
REF2
+
0.5 V
−
1.3
0.2
1.7
dB
f
=
13 MHz
AGC
AGC max. gain
G
MAGC
f
=
500 kHz, V
IN
=
20 mV[p-p]
20.3
23.3
26.3
dB
AGC operating gain
G
AGC
f
=
500 kHz, V
IN
=
500 mV[p-p]
3.0
6.0
9.0
dB
AGC compression factor
∆
G
AGC
f
=
500 kHz, V
IN
=
125 mV[p-p]
−
1.20
1.30
3.80
dB
AGC frequency characteristics
G
FAGC
f
=
30 MHz, V
IN
=
20 mV[p-p]
−
4.5
−
3.0
0
dB
Note) *: The values mentioned above are subject to change according to the state of a printed circuit board, a socket, etc.
HD755
25
AN8849SB
■
Electrical Characteristics at T
a
=
25
°
C (continued)
Parameter
Symbol
Conditions
Min
Typ
Max
Unit
NRF detection
NRF det. detection level
V
RDA1
f
=
500 kHz, V
GC
=
V
REF2
−
0.75 V
73
105
137
mV[p-p]
NRF det. high-level output
V
RDAH
f
=
500 kHz, V
GC
=
V
REF2
−
0.75 V
4.2
V
voltage
NRF det. low-level output
V
RDAL
f
=
500 kHz, V
GC
=
V
REF2
−
0.75 V
0.8
V
voltage
NRF det. detection level ratio
B
RDA
f
=
500 kHz, V
GC
=
V
REF2
2.9
3.9
4.9
BDO
CBDO detection current
I
BDO
V
CC1
=
5 V, V
CC2
=
3.3 V
0.98
1.40
1.82
µ
A
EQSW
=
V
REF2
−
0.5 V
CBDO detection current ratio
B
IBD4
V
CC1
=
5 V, V
CC2
=
3.3 V
3.0
3.8
4.6
EQSW
=
V
REF2
BDO high-level output voltage
V
BDOH
V
CC1
=
5 V, V
CC2
=
3.3 V
4.2
V
f
=
5 kHz, rectangular wave
BDO low-level output voltage
V
BDOL
V
CC1
=
5 V, V
CC2
=
3.3 V
0.8
V
f
=
5 kHz, rectangular wave
OFTR
COFTR detection current
I
OFTR
V
CC1
=
5 V, V
CC2
=
3.3 V
0.98
1.40
1.82
µ
A
EQSW
=
V
REF2
−
0.5 V
COFTR detection current ratio
B
IOFTR4
V
CC1
=
5 V, V
CC2
=
3.3 V
3.0
3.8
4.6
EQSW
=
V
REF2
OFTR high-level output voltage V
OFTRH
V
CC1
=
5 V, V
CC2
=
3.3 V
4.2
V
f
=
5 kHz, rectangular wave
OFTR low-level output voltage
V
OFTRL
V
CC1
=
5 V, V
CC2
=
3.3 V
0.8
V
f
=
5 kHz, rectangular wave
Masking operating voltage 1
V
MASK1
f
=
40 kHz, V
IN
=
100 mV[p-p]
0.35
V
Masking operating voltage 2
V
MASK2
f
=
40 kHz, V
IN
=
100 mV[p-p]
0.65
V
3TENV
CEA to ENV
G
CEA
−
ENV
V
CC1
=
5 V, V
CC2
=
3.3 V
20.0
23.0
26.0
dB
transfer characteristics
CEA input impedance
Z
CEA
V
CC1
=
5 V, V
CC2
=
3.3 V
6.8
8.8
10.8
k
Ω
ENV amp. output impedance
Z
ENV
V
CC1
=
5 V, V
CC2
=
3.3 V
6.4
8.4
10.4
k
Ω
ENV amp. offset voltage
V
ENVOF
V
CC1
=
5 V, V
CC2
=
3.3 V
−
100
0
100
mV
ENV amp. operation
V
ENV
V
CC1
=
5 V, V
CC2
=
3.3 V
270
540
810
mV[p-p]
f
=
800 kHz, AM modulation
LD APC
LD operating reference voltage
V
LD
V
CC1
=
5 V, V
CC2
=
3.3 V
135
170
205
mV
LDON operating voltage
V
LDON
V
CC1
=
5 V, V
CC2
=
3.3 V
−
0.35
V
HD755
26
AN8814SB
4-channel driver IC for optical disk drive
■
Overview
The AN8814SB is a BTL system 4-channel
driver and is encapsulated in the SMD package
which excels in heat radiation characteristic.
which excels in heat radiation characteristic.
■
Features
•
Wide output dynamic range regardless of refer-
ence voltage of the system
ence voltage of the system
•
Driver I/O gain setting is possible with an addi-
tional external resistor
tional external resistor
•
3.3 V supply voltage is available due to an exter-
nal PNP-tr.
nal PNP-tr.
•
Additional OP-amp. built-in
■
Applications
•
MD, CD/CD-ROM drive
•
DVD/DVD-ROM drive
HSOP042-P-0400
Unit: mm
1
7
8
14
(1.315)
0.65±0.20
28
22
21
(4.8)
(6.4)
(1.2)
(5.15)
18.4±0.2
8.3±0.2
2.7±0.2
0.1±0.1
10.93±0.30
15
0.35
+0.10
–0.05
–0.05
0.30
+0.10
–0.05
0.8
Seating plane
0
°
to 10
°
■
Block Diagram
19
PGND1
20
PV
CC1
23
IN1
18
VO1
+
24
PC1
17
VO1
−
25
IN2
16
VO2
+
26
PC2
15
VO2
−
27
IN3
14
VO3
+
13
VO3
−
28
IN4
12
VO4
+
10
PGND2
11
VO4
−
9
PV
CC2
21
8
6
7
V
CC
4
Fin
GND
5
V
CC
22
V
REF
1
2
PV
CC
1
2
2
PV
CC
1
2
2
3.3 V
reg.
Direction
detector
Direction
detector
Direction
detector
Direction
detector
V
CC
detector
Thermal
protection
circuit
HD755
27
AN8814SB
Pin No.
Description
15
Motor driver-2 reverse rotation output pin
16
Motor driver-2 forward rotation output pin
17
Motor driver-1 reverse rotation output pin
18
Motor driver-1 forward rotation output pin
19
Driver GND pin 1
20
Driver power supply pin 1
21
1/2 PV
CC
output pin 1
22
V
REF
input pin
23
Motor driver-1 input pin
24
PC (power cut) input pin 1
25
Motor driver-2 input pin
26
PC (power cut) input pin 2
27
Motor driver-3 input pin
28
Motor driver-4 input pin
Fin
GND pin
■
Pin Descriptions
Pin No.
Description
1
Base control pin for an external transistor
of 3.3 V regulator
2
3.3 V regulator output monitor pin
3
N.C. pin
4
Op-amp. output pin
5
Op-amp. inverted input pin
6
Op-amp. non-inverted input pin
7
Power supply pin
8
1/2 PV
CC
output pin 2
9
Driver power supply pin 2
10
Driver GND pin 2
11
Motor driver-4 reverse rotation output pin
12
Motor driver-4 forward rotation output pin
13
Motor driver-3 reverse rotation output pin
14
Motor driver-3 forward rotation output pin
Parameter
Symbol
Range
Unit
Supply voltage
SV
CC
, PV
CC1
, PV
CC2
4.0 to 14
V
■
Recommended Operating Range
Parameter
Symbol
Rating
Unit
Supply voltage
SV
CC
17
V
Supply current
I
CC
mA
Power dissipation
*2
P
D
542
mW
Operating ambient temperature
*1
T
opr
−
30 to
+
85
°C
Storage temperature
*1
T
stg
−
55 to
+
150
°C
■
Absolute Maximum Ratings
Note) *1: Except for the operating ambient temperature and storage temperature, all ratings are for T
a
=
25
°
C.
*2: T
a
=
85
°
C.
Referring to "■ Application Circuit Example", following the allowable power dissipation characteristic curve of "■
Application Notes".
HD755
28
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