Sony BVP-900P Maintenance Manual page 135

CXD2024AQ (SONY)
C-MOS DIGITAL COMB FILTER (NTSC/PAL)
—TOP VIEW—
65
66
67
68
69
70
71
72 D-GND
73 D-V
DD(+5V)
74
75
76
77
78
79
80
PIN PIN PIN
I/O SIGNAL I/O SIGNAL
No. No. No.
VI8 I
1 I 21 CRV 41
2 I VI7 22 O RB 42
3 I VI6 23 — GR 43
4 I VI5 24 — AA-GND 44
5 I VI4 25 I ADIN 45
6 I VI3 26 — AA-V 46
DD
I VI2 O
7 27 RT 47
VI1
8 I 28 — AD-V 48
DD
9 I ADC0 29 — Y-V 49
DD
10 I INSL 30 I XAYO 50
11 I OCLK 31 O AYO 51
12 — D-GND 32 O YVG 52
— D-V 33 I 53
13 YVRF
DD
O O
14 CLK0 34 YIRF 54
15 I MCK 35 — Y-GND 55
16 I ADCK 36 O VB 56
17 I CLPI 37 — C-V 57
DD
18 I XCPON 38 I XACO 58
19 — AD-GND 39 O ACO 59
I O 60
20 ICP 40 CVG
25
ADC
ADIN NTSC : 1H
PAL : 2H
1
VI8
2
VI7
3
BPF
VI6
4
VI5
5
VI4
6
VI3
7
VI2
8
VI1
LOGICAL OPERATION
BVP-900
BVP-900P
40
39
38
C-V 37
DD(+5V)
36
Y-GND 35
34
33
32
31
30
Y-V 29
DD(+5V)
AD-V 28
DD(+5V)
AA-V 27
DD(+5V)
26
25
(V = +5V)
DD
PIN
I/O SIGNAL I/O SIGNAL
No.
I O
CVRF 61 C6
O CIRF 62 O C5
— C-GND 63 O C4
O YA 64 O C3
O Y9 65 O C2
O Y8 66 O C1
O 67 I
Y7 XCOE
I
O Y6 68 APCN
O Y5 69 I RATI
O Y4 70 I NTPL
O Y3 71 I TST
— D-GND 72 — D-GND
— 73 —
D-V D-V
DD DD
O I
Y2 74 PNR
O Y1 75 I TEST
I XYOE 76 I TEST
O CA 77 I TEST
O C9 78 I TEST
O C8 79 I BPF
O 80 I
C7 TEST
NTSC : 1H
PAL : 2H
DL _
BPF BPF
ADAPTATION
TYPE
FILTER
OPERATION
INPUT
ADCK ; CLOCK FOR A/D CONVERTER
ADCO ; A/D CONVERTER OUTPUT SELECT
(H : DIGITAL OUTPUT MODE, L : STANDARD MODE)
ADIN ; COMB FILTER ANALOG DATA
APCN ; APERTURE COMPENSATION
(H : FREQUENCY RESPONSE DEGRADATION COMPENSATE BY APERTIRE EFFECT,
L : STANDARD)
BPF ; Y/C SEPARATE PROCESS MODE SETTING
(H : BPF SEPARATE MODE, L : ADAPTABILITY PROCESS MODE)
CLPI ; CLAMP PULSE FOR A/D CONVERTER
CRV ; CLAMP REFERENCE VOLTAGE
CVRF ; FULL SCALE VALUE SETTING OF ANALOG CHROMA SIGNAL
ICP ; VOLTAGE INTERGRATION FOR CLAMP CONTROL
INSL ; INPUT DATA SELECT OF COMB FILTER (H : DIGITAL INPUT, L : ANALOG INPUT)
MCK ; MASTER CLOCK
NTPL ; NTSC/PAL MODE SETTING (H : PAL, L : NTSC)
OCLK ; CLOCK AMPLIFIER
PNR ; DOT INTERFERENCE (PAL H : MINIMUM, L : BEFORE IMPROVEMENT
NTSC : L FIXED)
RATI ; RATIO SETTING (H : PAL (WHEN THE PNR IS ON, SET TO L FORCED), L : NTSC)
TEST ; TEST (NORMAL : L FIXED)
TST ; Y OUTPUT THROUGH MODE
(H : COMPOSITE VIDEO SIGNAL (TO AYO, YA-Y1) AND Y/C SEPARATED
CHROMA SIGNAL (TO ACO, CA-C1), L : Y-C SEPARATION MODE)
VI1 - VI8 ; DIGITAL DATA
XACO ; ANALOG CHROMA SIGNAL REVERSE CURRENT (CONNECTED TO C-GND)
XAYO ; ANALOG Y SIGNAL REVERSE CURRENT (CONNECTED TO Y-GND)
XCOE ; DIGITAL CHROMA SIGNAL OUTPUT CONTROL
(H : HIGH IMPEDANCE, L : STANDARD OUTPUT)
XCPON ; CLAMP SETTING FOR A/D CONVERTER
(H : A/D CONVERTER CAPABILITY, L : CLAMP CAPABILITY)
XYOE ; DIGITAL Y SIGNAL OUTPUT CONTROL
(H : HIGH IMPEDANCE, L : STANDARD OUTPUT)
; FULL SCALE VALUE SETTING OF ANALOG Y SIGNAL
YVRF
OUTPUT
ACO ; ANALOG CHROMA SIGNAL
AYO ; ANALOG Y SIGNAL
C1 - C9 ; DIGITAL CHROMA SIGNAL
CA ; DIGITAL CHROMA SIGNAL
CIRF ; EXTERNAL RESISTOR CONNECTION
CLKO ; CLOCK AMPLIFIER
CVG ; EXTERNAL CAPACITOR CONNECTION
RB ; STANDARD VALUE (+0.5V) OF REFERENCE VOLTAGE (BOTTOM)
RT ; STANDARD VALUE (+2.6V) OF REFERENCE VOLTAGE (TOP)
VB ; EXTERNAL CAPACITOR
Y1 - Y9 ; DIGITAL Y SIGNAL
YA ; DIGITAL Y SIGNAL
YIRF ; EXTERNAL RESISTOR CONNECTION
YVG ; EXTERNAL CAPACITOR CONNECTION
V (SUPPLY VOLTAGE = +5V)
DD
AA-V ; ANALOG SUPPLY VOLTAGE FOR A/D CONVERTER
DD
AD-V ; DIGITAL SUPPLY VOLTAGE FOR A/D CONVERTER
DD
C-V ; ANALOG SUPPLY VOLTAGE FOR D/A CONVERTER (CHROMA)
DD
D-V ; DIGITAL SUPPLY VOLTAGE
DD
Y-V ; ANALOG SUPPLY VOLTAGE FOR D/A CONVERTER (Y)
DD
31
DAC
AYO
GND
44
YA
AA-GND ; ANALOG GND FOR A/D CONVERTER
45
Y9
AD-GND ; DIGITAL GND FOR A/D CONVERTER
46
Y8
; ANALOG GND FOR D/A CONVERTER (CHROMA)
C-GND
47
Y7
D-GND ; DIGITAL GND
48
Y6
GR ; GARD RING (CONNECTED TO AA-GND)
49
Y5
Y-GND ; ANALOG GND FOR D/A CONVERTER (Y)
50
Y4
51
Y3
54
Y2
55
Y1
39
DAC
ACO
57
CA
58
C9
59
C8
60
C7
61
C6
62
C5
63
C4
64
C3
65
C2
66
C1
IC
2-9