ICs for MD System
1
Publication date: June 2002 SDD00024AEB
AN22011A
3-beam MD system pre-amplifier
■ Overview
The AN22011A incorporates such functions as RF
signal processing, servo signal processing, ADIP signal
processing and laser control. This is an RF IC that can
constitute the MD system using 3-beam pick-up in com-
bination with the digital signal processing LSI MN66621.
The IC allows us to achieve a considerable low power
dissipation as well as its low supply voltage operation
(V
CC
= 2.1 V to 3.6 V) due to our introduction of digital
matrix (P
D
= 11 mW at V
CC
= 2.1 V). The IC can be used
in a wide range of applications from a stand-alone system
to a portable system.
■ Features
• 3-beam system pick-up
• RF signal processing
• Servo signal processing
• Laser power control function
• Low supply voltage operation (2.1 V to 3.6 V)
• Ultra low power consumption (min. 11 mW)
• Thin package adopted (Mold thickness: 1 mm)
■ Applications
• MD player/recorder
• Home audio systems/mini systems
Portable audio
Car audio
TQFP048-P-0707B (Lead-free package)
Unit: mm
0.15
±
0.05
0.50±0.10
0.20±0.05
9.00±0.20
7.00±0.10
7.00
±
0.10
9.00
±
0.20
0.10
+0.10 -
0.05
0° to 8°
1.20 max.
(0.75)
(1.00)
(0.75)
(1.00)
Seating plane
37
1348
1 12
36
24
25
0.50
M0.10
0.10