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參數資料
| 型號： | AN8806SB |
| 廠商： | PANASONIC CORP |
| 元件分類： | 光電元器件 |
| 英文描述： | Three-Beam Method Head Amplifier IC for CD Player |
| 中文描述： | 1 CHANNEL READ WRITE AMPLIFIER CIRCUIT, PDSO36 |
| 封裝： | 0.450 INCH, PLASTIC, SSOP-36 |
| 文件頁數： | 8/10頁 |
| 文件大小： | 89K |
| 代理商： | AN8806SB |
AN8806SB
ICs for CD/CD-ROM Player
Pins31 and 32 are used to make the resistance converting the current to voltage variable. When these pins are directly
connected toV
REF
and 20k
of resistance is connected between TE and TE–, and between TE and TEOUT respectively,
equivalent resistance to TEOUT is 629k
.
AGC
In order to absorb the attenuation of RF signal by disk, pick-up dispersion, finger print and other factors, AGC circuit for RF is
incorporated.
The input impedance of Pin8 is approx. 27.9k
. By Pin10 (ARF), the gain-controlled RF-signal is outputted. Input allowable
level is approx. 1V
P–P
~ 500mV
P–P
~ 250mV
P–P
, and output is 1V
P–P
. Pin9 is a connecting pin with capacity for constructing the
AGC loop filter, and it is recommended that the external capacitor of 1
μ
F around should be connected to it for V
CC
.
Table 2
The VCBA is for tracking balance adjustment in the same way of for focus. Table 2 shows the tracking balance ratio under the
same conditions as shown in Table 1.
V
C
1.5V
2.5V
3.5V
E/F
0.14
1.0
7.0
F/E
7.0
1.0
0.14
9
10
8
ARF
AGC
EQ
RF
1
μ
F
V
CC
Figure 4 : AGC
RFDET
The RFDET detects amplitude of RF signal inputted to Pin8.
Threshold value is approx. 100mV (f=500kHz), and RF Present=L, RF Absent=H are outputted.
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PDF描述 |
|---|---|
| AN8807 | Three-Beam Method Head Amplifier IC for CD-ROM |
| AN8807SB | Three-Beam Method Head Amplifier IC for CD-ROM |
| AN8808SB | Three-Beam Method Head Amplifier IC for CD supporting the hologram pick-up |
| AN8812 | 4 CH LINEAR DRIVER IC FOR CD/CD-ROM |
| AN8812SC | 4 CH LINEAR DRIVER IC FOR CD/CD-ROM |
相關代理商/技術參數 |
參數描述 |
|---|---|
| AN8807 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Three-Beam Method Head Amplifier IC for CD-ROM |
| AN8807SB | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Three-Beam Method Head Amplifier IC for CD-ROM |
| AN8808SB | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Three-Beam Method Head Amplifier IC for CD supporting the hologram pick-up |
| AN8812 | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:4 CH LINEAR DRIVER IC FOR CD/CD-ROM |
| AN8812K | 制造商:Panasonic Industrial Company 功能描述:IC |
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