UPD6461GS NEC [NEC], UPD6461GS Datasheet - Page 54

• Manufacturer Part Number: UPD6461GS
• Description: CMOS LSI CHIP FOR CAMCORDER ON-SCREEN CHARACTER DISPLAY 12 ROWS x 24 COLUMNS
• Manufacturer: NEC [NEC]

54
7. APPLICATION CIRCUIT EXAMPLE
Connected to microcontroller
Notes 1.
Remarks 1. The number in the parentheses indicates the pin number of the PD6461GT-xxx.
10 F
V
DD
2.
3.
4.
+
2. With the PD6461GT-xxx, influence by noise via lead frame can be surpressed by connecting the
CR constant must be satisfied with Power-ON Clear Specification (refer to 6. ELECTRICAL
CHARACTERISTICS).
This circuit can reduce the number of external components and facilitates the adjustment of oscillation
frequency, using LC module (part number: Q285NCIS-11181, manufactured by Toko, Inc.)
Connect these pins as follows when inputting external clock:
OSC
Signals in ( ) are set by a mask option (RGB + RGB compatible blanking).
0.01 F
100 k
Note 1
N.C. pins (3, 12, 13, 22) to GND.
IN
Note 2
pin: external clock input, OSC
33 F
30 pF
5 to 30 pF
+
10 F
LC module
LC module
pin No. 1
pin No. 3
7(8)
8(9)
10(11)
9(10)
4 (5)
1 (1)
2 (2)
3 (4)
5 (6)
6 (7)
Note 3
Note 3
PD6461GS/GT, PD6462GS
CLK
CS
DATA
PCL
V
CK
OSC
GND
OSC
TEST
DD
OUT
OUT
OUT
IN
pin: open
Note 4
Note 4
Note 4
Hsync
(G
Vsync
(R
(B
BLK1
BLK2
V
BLK
BLK
BLK
V
V
V
BLK
V
V
C2
C1
R
)
B
G
)
)
17 (20)
16 (19)
14 (17)
13 (16)
12 (15)
20 (24)
19 (23)
18 (21)
15 (18)
11 (14)
Inputs a negative Hsync,
Vsync signal
Output
PD6461, 6462