M35015-210Sp (Ic303) A.video P.w.b.; M35015-210Sp Terminal Function - Denon AVC-A11XV Service Manual

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M35015-210SP (IC303) A.VIDEO P.W.B.

(
OSC1
1
20
OSC2 2
19
CS 3 18
SCK 4 17
SIN 16
5
6 15
AC
V
7 14
DD2
8
CVIDEO 13
9
LECHA 12
10
CVIN 11

M35015-210SP Terminal Function

Pin No. Symbol
1 OSC1 Osc. circuit ext.
2 OSC2 terminal.
3 CS Chip select input
4 SCK Serial clock input
TE
L 13942296513
5 SIN Serial data input
6 AC Auto-clear input
7 V Power supply
DD2
Combined
8 CVIDEO
video output
Character level
9 LECHA
input
Combined video
10 CVIN
input
11 Vss Ground
12 P0 Output port P0
13 P1 Output port P1
14 P2 Output port P2
15 P3 Output port P3
16 OSCOUT
17 OSCIN
Horizontal sync
18 HOR*
signal
Vertical sync
19 VERT*
signal
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20 V Power supply
DD1
.
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)
V
DD1
VERT*
3
CS
HOR*
INPUT
SCK 4 CONTROL
OSCIN
CIRCUIT
OSCOUT
5
SIN
P3
P2
P1
DATA ADDRESS
CONTROL CONTROL
P0
CIRCUIT CIRCUIT
Vss
INDICATION
CONTROL
REGISTER
INDICATION RAM
V
20
DD1
6
AC
11
Vss
INDICATION CHARACTER ROM
V 7
DD2
Name I/O
I External terminal for indication oscillator circuit. Standard OSC. freq. is approx. 7MHz.
O With this OSC. freq., decides horizontal indication and character width.
Chip select terminal and turns to "L" when transfer serial data.
I
Hysteresis input. Pull up resistor is built-in.
Takes in serial data of SIN at SCK rise when CS terminal is in "L".
I
Hysteresis input. Pull up rersist is built-in.
Serial input of register for indication control and data, and address for indication data
I
memory. Hysteresis input. Pull up rersistor is built-in.
Resets internal circuit of IC at "L" mode.
I
Hysteresis input. Pull up resistor is built-in.
⎯
Power supply terminal of analog system. Connect to +5V.
Output terminal of combined video signal. Outputs 2Vp-p combined signal. Character
O
output, etc. Overlap CVIN signal and outputs at superimpose.
Input terminal deciding character output level in combined video signal. Color of character
I
is white.
Input terminal of external combined video signal.
I
Character output etc. overlap this external combined video signal.
⎯
Ground terminal. Connect to GND.
General output or character background signal BL NK1* output is switchable.
O
Polarity can be selected at ROM mask.
General output or character background signal CO1* output is switchable.
O
Polarity can be selected at ROM mask.
General output or character background signal BLNK2* output is switchable.
O
Polarity can be selected at ROM mask.
General output or character background signal CO2* output is switchable.
O
Polarity can be selected at ROM mask.
Ext. terminal
O Terminal for external use of sync signal OSC. circuit. Use the freq.: 14.32MHz at NTSC
for sync sig.
I system, 17.73MHz at PAL system, 14.30MHz at MPAL system.
OSC. Circuit
Inputs horizontal sync signal.
I
Hysteresis input.
⎯
Input vertical sync signal. Hysteresis input. Polarity can be selected at ROM mask.
I Power supply terminal of digital system. Connect to +5V.
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8
OSC1 OSC2
1 2
INDICATION
OSCILLATOR
TIMING
GENERATOR
BLINKING CIRCUIT
Q Q
3 6 7 1 3
u163
.
45
AVR-4806 / AVC-A11XV
2 9 9 4 2 8
VERT* HOR*
19 18
SYNC SIGNAL SYNC SIGNAL DIS-
CRIMINATING CIRCUIT
SWITCHING CIRCUIT
OSC CIRCUIT
FOR SYNC SIGNAL
H COUNTER
GENERATION
IINDICATION LOCATION
DETECTION CIRCUIT
TIMING
GENERATOR
READ OUT ADDRESS
CONTROL CIRCUIT
INDICATION
CONTROL CIRCUIT NTSC
VIDEO OUTPUT
CIRCUIT
SHIFT REGISTER
Function
1 5 0 5 8 2 9 9 4
m
co
9 9
17 OSCIN
16
OSCOUT
8 CVIDEO
9
LECHA
10
CVIN
P0
12
13
P1
14
P2
15
P3
2 8 9 9