an8806sb Panasonic Corporation of North America, an8806sb Datasheet - Page 7

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

• Tracking Error Amplifier
ICs for CD/CD-ROM Player
B + D can be controlled as shown in Table 1.
for sub-beam detection, and outputs the operation result of E – F to TEOUT (Pin25).
The VCBA is for focus balance adjustment. Connecting 47 k of external resistance to Pin29, signal ratio between A + C and
As shown in Figure 3, the tracking error amplifier receives the output currents E and F of three-beam method pin photo diode
E
F
V
V
REF
REF
33
34
32
31
30
–
+
–
+
–
+
470k
470k
1.5V
2.5V
3.5V
V
Figure 3 : Tracking Error Amplifier
C
f
C
646kHz
Table 1
A + C
B + D
0.14
1.0
7.0
VCBA
VCBA
B + D
A + C
0.14
7.0
1.0
Subtraction
26
20k
–
+
AN8806SB
20k
25