Sharp DX-SX1H Service Manual page 55

IC606 RH-iX1473GEZZ: Digital Servo (IX1473GE) (3/3)
Terminal
Pin No.
Input/Output
Name
89 VDD
90 VSS
91 BUCK Input
92 /CCE Input
93 TEST4 Input
94 /TSMOD Input
95 /RST Input
96 TEST0 Input
97* /HSO Output
98* /UHSO Output
99 EMPH Output
100 LRCK Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
DVDD
RO
DVSS
DVR
DVDD
TEST1
TEST2
TEST3
BUS0
BUS1
BUS2
BUS3
VDD
VSS
BUCK
/CCE
TEST4
/TSMOD
/RST
TEST0
/HSO
/UHSO
EMPH
LRCX
— Digital + power terminal
— Digital ground terminal
Clock input terminal for microcomputer interface
Chip enable signal input terminal for microcomputer interface
"L": BUS0 to 3 are active.
Test terminal
Normally open
Local test mode select terminal
Reset signal input terminal
"L" in case of reset
Test terminal
Normally open
Playback speed mode flag output terminal
/UHSO
H
H
L
L
Emphasis flag output terminal for sub-code Q data
H: emphasis ON, L: emphasis OFF
Output polarity can be inverted according to commands
Channel clock (44.1 kHz) output terminal
L channel: L, R channel: H
Output polarity can be inverted according to commands
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
76
77
78
1BIT
79
LPF
CLOCK
DAC
LO 80
81
GENERATOR
82
83
84
85
86
87
88
89
90
91
CORRECTION
92
CIRCUIT
93
94
95
96
DIGITAL OUT
97
AUDIO
OUTPUT
98
CIRCUIT
99
100
1 2 3 4 5 6
Figure 55 BLOCK DIAGRAM OF IC
Function
Playback speed
/HSO
H Normal speed playback
L Double speed playback
H 4-time speed playback
L 8-time speed playback
SERVO
CONTROL
DIGITAL
ROM
EQUALIZER
ADDRESS
CIRCUIT AUTOMATIC
RAM CONTROL
CIRCUIT
CLV SERVO
1 Gk RAM
EFM DEMODULATION
TO PROTECT
SYNCHRONIZING
SIGNAL
PWM
SUB-CODE
DEMODULATION
CIRCUIT
STATUS
7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
– 55 –
50 DMO
49 FVO
48 FMO
PWM
47 TEBC
46 RFGC
45 VREF
D/A
44 TRO
43 FOO
42 TEZI
+
-
41 TEI
40 TSIN
A/D
39 SBAD
38 FEI
+
-
37 RFRP
36 RFZI
+
-
35 RFCT
34 AVDD
33 RFI
DATA
SLICER
32 SLCO
31 AVSS
30 VCOF
VCO
29 VCOREF
28 PVREF
+
PLL TMAX 27 LPFO
-
26 LPFN
DX-SX1H
Remarks
Schmitt input
Schmitt input
Pull-up
resistor built in
Pull-up
resistor built in
Pull-up
resistor built in
Pull-up resistor
Pull-up
resistor built in
Pull-up resistor