cxa1992ar Sony Electronics, cxa1992ar Datasheet - Page 32

• Manufacturer Part Number: cxa1992ar
• Description: Rf Signal Processing Servo Amplifier
• Manufacturer: Sony Electronics

3. $2X (TZC at SENS1 pin (Pin 25), MIRR at SENS2 pin (Pin 26))
These commands deal with turning the tracking servo and sled servo ON/OFF, and creating the jump pulse
and fast forward pulse during access operations.
[ A]
[ B]
[ E]
[ G]
[ C]
[ D]
[ F]
[ H]
RF_I
TZC
D7
0
0V
32
49
From inner to outer track
[ A]
[ D]
D6
0
Waveform
Detection
Envelope
Shaping
Fig. 6. TM7 movement during braking operation
D5
1
[ B]
[ E]
Edge Detection
Waveform
Shaping
Fig. 7. Internal waveform
D4
0
CXA1992
(MIRR)
(Latch)
– 32 –
[ C]
D3
[ F]
00
01
10
11
TM1, TM3, TM4,
Tracking
control
D
CK
From outer to inner track
Q
[ G]
off
Servo ON
F-JUMP
R-JUMP
BRK
D2
D2
D1
00
01
10
11
TM2, TM5, TM6
TM7
Low: open
High: make
control
Sled
("MIRR")
("TZC")
off
Servo ON
F-FAST FORWARD
R-FAST FORWARD
Braking is applied
from here.
[ H]
D0
CXA1992AR