Mt1389 Pin Function (Analog Monitor Output) (U201) - Cambridge Audio DVD89 Service Manual

A nalog Monitor Output (7)
No. Name
24 S V DD3
25 C S O R F OP
26 R F LV L R F ON
27 S G ND
31 F E O
32 T E O
33 T E ZIS LV
A nalog S er v o Interfac e (6)
No. Name
244 R F V DD3
245 R F R P DC
246 R F R P AC
247 HR F ZC
248 C R T P LP
249 R F G ND
R F Data P L L Interfac e (9)
No. Name
230 J IT F O
231 J IT F N
232 P LLV S S
233 IDAC E XLP
234 P LLV DD3
235 LP F ON
236 LP F IP
237 LP F IN
238 LP F OP
Motor and A c tuator Driver Interfac e (10)
No. Name
34 OP _OUT
35 OP _INN
36 OP _INP
37 DMO
38 F MO
39 T R OP E NP WM
40 P WMOUT 1 V _ADIN9
41 T R O
42 F OO
47 F G (Digital pin) V _ADIN8
(U201) MT1389 Pin Function (Analog Monitor Output)
Cambridge Audio DVD89 DVD Player
A lt. I/O
P ower Analog power 3.3V
Analog output C entral s ervo
Analog output R F R P low pas s , or Negative main beam s umming output
G round Analog ground
Analog output F ocus error monitor output
Analog output T racking error monitor output
Analog output T E S licing Level
A lt. I/O
P ower Analog P ower
Analog output R F ripple detect output
Analog Input R F ripple detect input(through AC -coupling)
Analog Input High frequency R F ripple zero cros s ing
Analog output Defect level filter capacitor connecting
G round Analog G round
A lt. I/O
Analog output T he output terminal of R F jitter meter.
Analog Input T he input terminal of R F jitter meter.
G round G round pin for data P LL and related analog circuitry.
Analog output Data P LL DAC Low-pas s filter
P ower P ower pin for data P LL and related analog circuitry.
Analog Output T he negative output of loop filter amplifier
Analog Input T he pos itive input terminal of loop filter amplifier.
Analog Input T he negative input terminal of loop filter amplifier.
Analog Output T he pos itive output of loop filter amplifier
A lt. I/O
Analog output Op amp output.
Analog input Op amp negative input
Analog input Op amp pos itive input
Analog Output Dis k motor control output. P WM output.
Analog Output F eed motor control. P WM output.
Analog Output T ray P WM output / T ray open output.
Analog Output 1s t G eneral P WM output, or V ers ion AD input 9
Analog Output T racking s ervo output. P DM output of tracking s ervo compens ator.
Analog Output F ocus s ervo output. P DM output of focus s ervo compens ator
LV T T L 3.3V Input,
S chmitt Input,
pull-up , with Motor Hall s ens or input, or V ers ion AD input 8
analog input path
for V _ADIN8
F unc tion
P os itive main beam s umming output
F unc tion
F unc tion
F unc tion