Sharp XL-DK257N Service Manual page 78

XL-DK257N
IC1 VHITC94A70FG2: CD MP3 DECODER (3/4)
Pin Description
Pin
Symbol Input / Output
No.
Input / Output
49 Pio1
Input / Output
50 Pio2
Input / Output
51 Pio3
52 VSS
53 VDDT3
54 SBSK Output 3AI/F
55 SBOK Output 3I/F
56 IPF Output 3I/F
57 SFSY Output 3I/F
58 ZDET Output 3I/F
59 GPIN Input 3I/F
60 MS Input 3I/F
61 DoUT(Po6) Output 3I/F
62 AoUT1(Po7) Output 3I/F
63 BCKo(Po8) Output 3I/F
64 LRCKo(Po9) Output 3I/F
65 AiN(Pi4) Input 3I/F
66 BCKi(Pi5) Input 3I/F
67 LRCK(Pi6) Input 3I/F
68 VDD1
69 VSS
70 AWRC Output 3AI/F
71 PVDD3
72 PDo Output 3AI/F
73 TMAXS Output 3AI/F
74 TMAX Output 3AI/F
75 LPFN Input 3AI/F
76 LPFo Output 3AI/F
77 PVREF
78 VCoF Output 3AI/F
79 PVSS3
80 SLCo Output 3AI/F
81 RFi Input 3AI/F
82 RFRPi Input 3AI/F
83 RFEQo Output 3AI/F
84 Vro Output 3AI/F
85 RESiN Output 3AI/F
86 VMDiR
87 TESTR Output 3AI/F
DSP general input/output port -1.
3I/F
DSP general input/output port -2.
3I/F
DSP general input/output port -3.
3I/F
- Grounding pin for 3.3V digital circuit.
- Power supply pin for 3.3 V digital I/O circuit.
Sub code block sync output pin.
CRCC check result output pin for sub code Q data.
Correction flag output.
Servo internal register read clock output pin.
Internal Audio DAC Zero data detection flag output.
CD General Input port (Pull down by 100KΩ when not
in use).
Microprocessor I/F mode selection pin.
"H": Parallel I/F, "L": Serial I/F
Digital Audio output (SPDIF) pin
(DSP general output port -6)
Audio data output pin -1
(DSP general output port -7)
Bit clock output pin for AoUT
(DSP general output port -8)
L/R channel clock output pin
(DSP general output port -9)
Audio data input for Audio DAC
(DSP general input port -4)
Bit clock input pin for AiN
(DSP general input port -5)
L/R channel clock for AiN
(DSP general input port -6)
- Power supply pin for 1.5V digital circuit.
- Grounding pin for 1.5V digital circuit.
VCO control pin for active wide-range PLL.
- Power supply pin for 3.3V CD PLL circuit.
EFM and PLCK Phase difference signal output pin.
TMAX detection result output pin.
TMAX detection result output pin.
PLL circuit LPF amplifier inversion input pin.
PLL circuit LPF amplifier Output pin.
- PLL circuit 1.65 V reference voltage pin.
VCO filter pin
- Grounding pin for 3.3V CD PLL circuit.
EFM slice level output pin.
Output impedance =2.5kΩ both of
analog/digital slice mode.
RF signal input pin
Zin is selectable by command.
RF ripple signal input pin.
RF equalizer circuit output pin.
1.65 V reference voltage output pin.
Pin for connecting a resistor for reference current
generation.
Reference voltage output pin for LD APC.
LPF connection pin for RFEQO offset correction
circuit.
Description
8 – 5
Default Remarks
Input Schmitt input CMOS PORT
Input Schmitt input CMOS PORT
Input Schmitt input CMOS PORT
- -
- For CD and DSP I/O
Output CMOS PORT
Output CMOS PORT
Output CMOS PORT
Output CMOS PORT
Output CMOS PORT
Input Schmitt input
Input
Output CMOS PORT
Output CMOS PORT
Output CMOS PORT
Output CMOS PORT
Input Schmitt input
Input Schmitt input
Input Schmitt input
-
-
Applicable in CLV/CAV mode.
Output
Connect 0.033 uF.
-
4-state output ( PVDD3,
Output
Hiz,PVSS3,PVREF)
3-state output
Output
(PVDD3,PVSS3,HiZ)
3-state
Output
output(PVDD3,PVSS3,HiZ)
Connect resister of LPF, refer
Input
to application circuit diagram.
Connect capacitor of LPF, refer
Output
to application circuit diagram.
Connected to VREF and VRO
-
inside of IC. Connect 0.1uF.
Output Connect 0.01uF.
-
Connect capacitor according
Output
with servo frequency band.
Input Zin: 20kΩ, 10kΩ, 5kΩ
Input -
Connect to RFRPI by 0.1uF, to
Output
RFI by 4700pF.
Connected to VREF and
Output PVREF inside of IC.
Connect 0.1uF+100uF.
Output Connect 22k//0.01uF.
Connect 0.1uF.
Output Connect more than 0.015uF.