CXA1372BQ Datasheet, PDF (21/32 Pages) Sony Corporation – RF Signal Processing Servo Amplifier for CD Player

CXA1372BQ/BS
RFI 39
Tracking error
(TZC) 42
[^∗A]
Envelope
Detection
[^∗D]
Waveform
Shaping
[^∗B]
Waveform
Shaping
[^∗E]
Edge Detection
D2
(MIRR)
[^∗C]
[^∗G]
DQ
[^∗F]
BRK
CK
(Latch)
TM7
Low: open
High: make
[^∗H]
Fig. 6. TM7 operation (brake circuit)
[^∗A]
[^∗B]
[^∗C]
[^∗D]
[^∗E]
[^∗F]
[^∗G]
[^∗H] 0V
From inner to outer track
From outer to inner track
Fig. 7. Internal waveform
("MIRR")
("TZC")
Braking is
applied from
here.
3. $2X (“TZC” at SENS (Pin 27))
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.
D7
D6
D5
D4
D3
D2
D1
D0
0
0
1
0
Tracking
control
00: OFF
01: Servo ON
10: F-JUMP
11: R-JUMP
↓
TM1, TM3, TM4
Sled
control
00: OFF
01: Servo ON
10: F-FAST FORWARD
11: R-FAST FORWARD
↓
TM2, TM5, TM6
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