Marantz CD5003/B, Руководство по обслуживанию

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48
TC94A70FG
6/27
05/09/16
Pin
No.
Symbol I/O Description Default Remarks
56 IPF
O
3I/F
Correction flag output O CMOS PORT
57 SFSY
O
3I/F
Servo internal register read clock output pin O CMOS PORT
58 ZDET
O
3I/F
Internal Audio DAC Zero data detection flag
output
O CMOS PORT
59 GPIN
I
3I/F
CD General Input port(Pull down by 100K :
when not in use)
I Schmitt input
60 MS
I
3I/F
Microprocessor I/F mode selection pin.
“L”: Parallel I/F, “H”: Serial I/F
I
61 DoUT(Po6)
O
3I/F
Digital Audio output (SPDIF) pin
(DSP general output port -6)
O CMOS PORT
62 AoUT1(Po7)
O
3I/F
Audio data output pin -1(DSP general
output port -7)
O CMOS PORT
63 BCKo(Po8)
O
3I/F
Bit clock output pin for AoUT
(DSP general output port -8)
O CMOS PORT
64 LRCKo(Po9)
O
3I/F
L/R channel clock output pin
(DSP general output port -9)
O CMOS PORT
65 AiN(Pi4)
I
3I/F
Audio data input for Audio DAC
(DSP general input port -4)
I Schmitt input
66 BCKi(Pi5)
I
3I/F
Bit clock input pin for AiN
(DSP general input port -5)
I Schmitt input
67 LRCKi(Pi6)
I
3I/F
L/R channel clock for AiN
(DSP general input port -6)
I Schmitt input
68 VDD1 － Power supply pin for 1.5V digital circuit.
－
69 VSS － Grounding pin for 1.5V digital circuit.
－
70 AWRC
O
3AI/F
VCO control pin for active wide-range PLL O
Applicable in CLV/CAV
mode. Connect 0.033 uF.
71 PVDD3
－
Power supply pin for 3.3V CD PLL circuit.
－
72 PDo
O
3AI/F
EFM and PLCK Phase difference signal
output pin.
O
4-state output (
PVDD3,
Hiz,PVSS3,PVREF)
73 TMAXS
O
3AI/F
TMAX detection result output pin O
3-state output
(PVDD3,PVSS3,HiZ)
74 TMAX
O
3AI/F
TMAX detection result output pin O
3-state
output(PVDD3,PVSS3,HiZ)
75 LPFN
I
3AI/F
PLL circuit LPF amplifier inversion input pin I
Connect resister of LPF,
refer to application circuit
diagram.
76 LPFo
O
3AI/F
PLL circuit LPF amplifier Output pin O
Connect capacitor of LPF,
refer to application circuit
diagram.
77 PVREF － PLL circuit 1.65 V reference voltage pin.
－
Connected to VREF and
VRO inside of IC. Connect
0.1uF.
78 VCoF
O
3AI/F
VCO filter pin O Connect 0.01uF.
79 PVSS3 － Grounding pin for 3.3V CD PLL circuit. －
80 SLCo
O
3AI/F
EFM slice level output pin.
Output impedance =2.5k
Ω
both of
analog/digital slice mode.
O
Connect capacitor
according with servo
frequency band.
81 RFi
I
3AI/F
RF signal input pin
Zin is selectable by command.
I Zin
：
20k
Ω，
10k
Ω，
5k
Ω
82 RFRPi
I
3AI/F
RF ripple signal input pin I
TC94A70FG
7/27
05/09/16
Pin
No.
Symbol I/O Description Default Remarks
83 RFEQo
O
3AI/F
RF equalizer circuit output pin. O
Connect to RFRPI by
0.1uF, to RFI by 4700pF.
84 VRo
O
3AI/F
1.65 V reference voltage output pin. O
Connected to VREF and
PVREF inside of IC.
Connect 0.1uF+100uF.
85 RESiN
O
3AI/F
Pin for connecting a resistor for reference
current generation.
O
Connect 22k
Ω
//0.01uF.
86 VMDiR
－
Reference voltage output pin for LD APC.
－
Connect 0.1uF
87 TESTR
O
3AI/F
LPF connection pin for RFEQO offset
correction circuit.
O
Connect more than
0.015uF.
88 AGCi
I
3AI/F
RF signal AGC amplifier input pin I
89 RFo
O
3AI/F
RF signal generation amplifier output pin O
90 RVDD3
－
Power supply for 3.3V RF amplifier core
circuit.
－
91 LDo
O
3AI/F
Laser diode amplifier output pin.
92 MDi
I
3AI/F
Monitor photodiode amplifier input pin. I
Reference
Voltage=178mVtyp.
93 RVSS3 － Grounding pin for RF amplifier core circuit －
94 FNi2
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode C.
I
95 FNi1
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode A.
I
96 FPi2
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode D.
I
97 FPi1
I
3AI/F
Main beam signal input pin.
To be connected to PIN diode B.
I
98 TPi
I
3AI/F
Sub beam signal input pin.
To be connected to PIN diode F.
I
99 TNPC
O
3AI/F
TNI/TPI input common capacitor connection
pin.
O
Connect to VRO by
capacitor.
100 TNi
I
3AI/F
Sub beam signal input pin.
To be connected to PIN diode E.
I
* 3A I/F : : 3 V analog circuit input/output pin.
1.5 I/F : 1.5Vdigital input/output pin.
3 I/F : 3 V digital input/output pin.
Note: The servo output pins (FOO, TRO, FMO, and DMO) become undefined or GND level under the following
conditions:
x /RST pin Low
x Crystal oscillation stopped according to the instructions by the Stop crystal oscillation command
x Power supply for CD is OFF.
x
SRAMSTB pin = High
To prevent the undefined pin states from affecting the servo circuitry or any other mechanical blocks in the
system, appropriate measures should be taken, such as using a driver IC supporting a standby feature to
place the system in standby mode while either of the above conditions is satisfied.
IC31 : TC94A70FG