an8806sb Panasonic Corporation of North America, an8806sb Datasheet - Page 8

• Manufacturer Part Number: an8806sb
• Description: Three-beam Method Head Amplifier Ic For Cd Player
• Manufacturer: Panasonic Corporation of North America

• AGC
AN8806SB
• RFDET
equivalent resistance to TEOUT is 629k .
connected toV
same conditions as shown in Table 1.
incorporated.
level is approx. 1V
AGC loop filter, and it is recommended that the external capacitor of 1 F around should be connected to it for V
Pins31 and 32 are used to make the resistance converting the current to voltage variable. When these pins are directly
The VCBA is for tracking balance adjustment in the same way of for focus. Table 2 shows the tracking balance ratio under the
In order to absorb the attenuation of RF signal by disk, pick-up dispersion, finger print and other factors, AGC circuit for RF is
The input impedance of Pin8 is approx. 27.9k . By Pin10 (ARF), the gain-controlled RF-signal is outputted. Input allowable
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.
REF
and 20k
P–P
~ 500mV
of resistance is connected between TE and TE–, and between TE and TEOUT respectively,
P–P
~ 250mV
1.5V
2.5V
3.5V
V
P–P
C
, and output is 1V
EQ
RF
8
Figure 4 : AGC
Table 2
0.14
E/F
1.0
7.0
V
P–P
9
CC
. Pin9 is a connecting pin with capacity for constructing the
1 F
AGC
0.14
F/E
7.0
1.0
ARF
10
ICs for CD/CD-ROM Player
CC
.