AN8839 [PANASONIC]
CD-DA head amplifier IC for 3-beam system optical pick-up; 的CD-DA前置放大器IC，用于三光束系统的光学拾波器
| 型号： | AN8839 |
| 厂家： | 
PANASONIC |
| 描述： | CD-DA head amplifier IC for 3-beam system optical pick-up |
| 文件： | 总7页 (文件大小：66K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ICs for Compact Disc/CD-ROM Player
AN8839NSB
CD-DA head amplifier IC for 3-beam system optical pick-up
■ Overview
Unit: mm
1
The AN8839NSB is a head amplifier IC for digital
28
servo. It can configure an efficient CD system in combi-
nation with the MN6627XX series, and allows a full-
automatic adjustment of tracking balance-gain-offset and
focus balance-gain-offset with fewer external parts.
■ Features
• Operating supply voltage VCC = 2.4 V to 5.5 V
14
15
• Balance adjustment function built-in
Focus error amp./tracking error amp.
• OFTR/BDO detection
• Standby function built in
• APC amp.
0.3
7.2±0.3
9.3±0.3
SSOP028-P-0375
■ Applications
• CD player
1
AN8839NSB
ICs for Compact Disc/CD-ROM Player
■ Block Diagram
19
ENV
7
11
17
LD
CEA
OFTR
6
LPD
18
10
12
N.C.
CSBRT
BDO
16
PDOWN
21
N.C.
23
TEOUT
15
22
RFDET
TEN
28
FBAL
27
RFIN
RF
9
8
TBAL
2
ICs for Compact Disc/CD-ROM Player
AN8839NSB
■ Pin Descriptions
Pin No.
Description
Tracking signal input pin 1
Tracking signal input pin 2
Power supply pin
Pin No.
15
Description
NRFDET output pin
1
2
16
Power-down input pin
OFTR output pin
N.C.
3
17
4
Focus signal input pin 1
Focus signal input pin 2
APC amp. input pin
18
5
19
3TENV output pin
N.C
6
20
7
APC amp. output pin
21
N.C
8
RF adding output pin
22
TE amp. input pin
TE amp. output pin
FE amp. output pin
FE amp. input pin
VREF output pin
TBAL control pin
FBAL control pin
9
Input pin for the detection circuits
Capacitor connection pin for OFTR
Capacitor connection pin for HPF amp.
BDO output pin
23
10
11
12
13
14
24
25
26
APC control pin
27
GND pin
28
■ Absolute Maximum Ratings
Parameter
Symbol
VCC
ICC
Rating
5.8
Unit
V
Supply voltage
Supply current
20
mA
mW
°C
Power dissipation
PD
116
Operating ambient temperature *
Storage temperature *
Topr
−20 to +75
−55 to +125
Tstg
°C
Note) : Except for the operating ambient temperature and storage temperature, all ratings are for T = 25°C.
*
a
■ Recommended Operating Range
Parameter
Supply voltage
Symbol
Range
Unit
VCC
2.4 to 5.5
V
3
AN8839NSB
ICs for Compact Disc/CD-ROM Player
■ Electrical Characteristics at Ta = 25°C
Parameter
Symbol
Conditions
Min
Typ Max
Unit
mA
µA
V
Current consumption with no load
ITOT
VCC = 3 V
4.0
6.0
8.0
No load current at power down PDITOT VCC = 3 V
300
VREF output pin
VREF VCC = 3 V
1.37 1.50 1.63
Focus error amplification
Focus error amp.
output offset voltage
VFO-OF VCC = 3 V
VFO-OFB VCC = 3 V
−100
−120
0
0
100
120
mV
mV
dB
Focus error offset balance
crosstalk amount
VFB = VREF ±0.375 V
Focus error amp.
V-V conversion gain
GFO1 VCC = 3 V
VFB = VREF
10.7 13.2 15.7
Focus error amp.
V-V conversion relative gain
∆GFO2 VCC = 3 V
VFB = VREF
−1.5
0
1.5
dB
Focus balance
BFO1-H VCC = 3 V
1.29 1.49 1.69
variable range 1−H
VFB = VREF +0.375 V
BFO1-L VCC = 3 V
VFB = VREF − 0.375 V
BFO2-H VCC = 3 V
VFB = VREF +0.375 V
BFO2-L VCC = 3 V
VFB = VREF − 0.375 V
Focus balance
variable range 1−L
0.25
0.25
0.5
0.5
0.75
0.75
Focus balance
variable range 2−H
Focus balance
variable range 2−L
1.29 1.49 1.69
Tracking error amplification
Tracking error amp.
output offset voltage
VTR-OF VCC = 3 V
−97
−120
580
0
0
97
120
920
18
mV
mV
kΩ
%
Tracking error offset balance
crosstalk amount
VTR-OFB VCC = 3 V
VTB = VREF ±0.375V
Tracking error amp.
I−V conversion gain
RTR1 VCC = 3 V
VTB = VREF
750
0
Tracking error amp.
I−V conversion relative gain
∆RTR2 VCC = 3 V
VTB = VREF
−18
Tracking balance
BTR1-H VCC = 3 V
0.77 0.83
0.9
variable range 1−H
VTB = VREF +0.375 V
BTR1-L VCC = 3 V
VTB = VREF − 0.375 V
BTR2-H VCC = 3 V
VTB=VREF +0.375 V
BTR2-L VCC = 3 V
VTB = VREF − 0.375 V
VTEM VCC = 3 V
Tracking balance
variable range 1−L
1.07 1.17 1.27
1.07 1.17 1.27
Tracking balance
variable range 2−H
Tracking balance
variable range 2−L
0.77 0.83
0.9
TEMUTE operation 1
−125
0
125
mV
4
ICs for Compact Disc/CD-ROM Player
AN8839NSB
■ Electrical Characteristics at Ta = 25°C (continude)
Parameter
RF amplification
Symbol
Conditions
Min
Typ Max
Unit
RF amp. offset voltage
RF amp. transfer gain
VRF-OF VCC = 3 V
−910 −710 −510
mV
dB
dB
GRF
GRFF VCC = 3 V
f = 500 kHz, 3 MHz
GEQ1 VCC = 3 V
f = 500 kHz, 1.5 MHz
VCC = 3 V
VCC = 3 V
7.7
9.3
10.9
RF-amp.
frequency characteristics *
−2.8 − 0.6 1.6
RF-amp.
EQ characteristics *
− 0.8 1.0
2.9
dB
RF-amp. capable drive current
RF detection
IRFO
220
µA
RFDET det. operation
RFDET high-level
RFDET low-level
BDO
VNRF VCC = 3 V, f = 500 kHz
VNRF-H VCC = 3 V, f = 500 kHz
VNRF-L VCC = 3 V, f = 500 kHz
88
132
176 mV[p-p]
V
2.6
0.4
−11
0.4
V
BDO detection level
BDO high-level
BDO low-level
VBDO VCC = 3 V
−63
−37
mV
V
VBDO-H f = 5 kHz, 170 mV[p-p], VCC = 3 V
VBDO-L f = 5 kHz, 170 mV[p-p], VCC = 3 V
2.6
V
OFTR
OFTR detection current
OFTR high-level
OFTR low-level
LD APC
ICSOFTR VCC = 3 V
1.03 1.45 1.87
µA
V
VOFT-H VCC = 3 V, f = 5 kHz, 700 mV[p-p]
VOFT-L VCC = 3 V, f = 5 kHz, 700 mV[p-p]
2.6
0.4
V
APC operating voltage
3TENV
VAPC VCC = 3 V
147
170
193
mV
ENV-amp. offset voltage
VENV-OF VCC = 3 V
GCENV VCC = 3 V
−125
0
125
9.2
mV
CEA-ENV
6
7.6
times
transfer characteristics
CEA input impedance
ENV output impedance
ENV amp. operation
Focus error amp.
ZCEA VCC = 3 V
ZENV VCC = 3 V
8.1
8.1
70
10.5 12.9
10.5 12.9
kΩ
kΩ
VOP-ENV VCC = 3 V
,
f = 800 kHz, AM modulation
100
130 mV[p-p]
Focus error amp.
dead zone width 1
XFEDZ1 VCC = 3 V
VFB = VREF
−10
−10
−8
0
0
0
10
10
8
mV
mV
mV
Focus error amp.
dead zone width 2
XFEDZ2 VCC = 3 V
VFB = VREF
Focus error amp.
relative dead zone width
∆XFEDZ1 VCC = 3 V
VFB = VREF
Note) : The values mentioned above are subject to change according to the state of a printed circuit board, a socket, etc.
*
5
AN8839NSB
ICs for Compact Disc/CD-ROM Player
■ Electrical Characteristics at Ta = 25°C (continued)
Parameter
Symbol
Conditions
Min
Typ Max
Unit
Tracking error amplification
Tracking error amp.
dead zone width 1
XTEDZ1 VCC = 3 V
VTB = VREF
−10
−10
−8
0
0
0
10
10
8
mV
mV
mV
Tracking error amp.
dead zone width 2
XTEDZ2 VCC = 3 V
VTB = VREF
Tracking error Amp.
relative dead zone width
∆XTEDZ VCC = 3 V
VTB = VREF
Power down pin
PDOWN pin
high-level input voltage
VPD-H VCC = 3 V
VPD-L VCC = 3 V
2.2
V
V
PDOWN pin
0.3
low-level input voltage
6
ICs for Compact Disc/CD-ROM Player
AN8839NSB
■ Application Circuit Example
19
ENV
ENV
VCC
7
LD
LD
11
17
CEA
PD
VCC
OFTR
6
LPD
CSBRT
BDO
18
16
10
12
N.C.
VCC
PDOWN
21
23
N.C.
TEOUT
RFDET
15
22
TEN
28
27
FBAL
TBAL
RFIN
RF
9
8
7
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