Harman Kardon HD 755, Техническое руководство

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MN662790RAS1
Pin Descriptions
Pin No. Symbol I/O Function Description
1 BCLK O SRDATA bit clock output.
2 LRCK O Left/right channel discrimination signal output.
3 SRDATA O Serial data output.
4 DV
DD1
I Power supply for digital circuits.
5 DV
SS1
I Ground for digital circuits.
6 TX O Digital audio interface output signal.
7 MCLK I Microcomputer command clock input. (Data is latched at rising edge.)
8 MDATA I Microcomputer command data input.
9 MLD I Microcomputer command load signal input. "L" level: load.
10 SENSE O Sense signal output. (OFT, FESL, NACEND, NAJEND, SFG, and NWTEND)
11 FLOCK O During default operation, focus servo convergence signal.
"L" level: convergence.
During command execution, direction detection output for external track
counter.
12 TLOCK O During default operation, tracking servo convergence signal. "L" level:
convergence.
During command execution, traverse speed control output.
13 BLKCK O Subcode block clock signal (f
BLKCK
=75 Hz)
14 SQCK I External clock input for subcode Q register
15 SUBQ O Subcode Q data output
16 DMUTE I Muting input. (Effective only for an output bit rate of 64 f
s
) "H" level: muting.
17 STAT O Status signal.
(CRC, CLVS, TTSTOP, JCLVS, SQOK, FLAG6, SENSE, FLOCK,
TLOCK, rpm data, and FCLV)
18 RST I Reset input. "L" level: reset.
19 SMCK O If MSEL is "H" level, 8.4672 MHz clock signal output.
If MSEL is "L" level, 4.2336 MHz clock signal output
20 CSEL O Oscillation frequency selection: "H" is 33.8688MHz; "L" is 16.9344MHz.
21 TRV O Traverse forced feed output. (tristate)
22 TVD O Traverse drive output.
23 PC O Spindle motor ON signal. "L" level: ON (default).
24 ECM O Spindle motor drive signal (forced mode output). (tristate)
25 ECS O Spindle motor drive signal (servo error signal output). (tristate)
26 KICK O Kick pulse output. (tristate)
27 TRD O Tracking drive output.
28 FOD O Focus drive output.
29 V
REF
I Reference voltage for DA output (TVD, ECS, TRD, FOD, FBAL, and
TBAL).
30 FBAL O Focus balance adjustment output.
31 TBAL O Tracking balance adjustment output.
32 FE I Focus error signal input. (analog input)
HD755
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