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PDF BU1424K Data sheet ( Hoja de datos )
| Número de pieza | BU1424K | |
| Descripción | NTSC / PAL digital RGB encoder | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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Multimedia ICs
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NTSC / PAL digital RGB encoder
BU1424K
The BU1424K is an IC that converts digital RGB / YUV input to composite (NTSC / PAL / PAL60), luminance (Y),
and chrominance (C) signals, and outputs the results.
•Applications
Video interfaces for VIDEO-CDs and CD-G decoders
•Features
1) Input clocks supported.
27.0 / 13.5MHz
28.636 / 14.318MHz
28.375 / 14.1875MHz
35.4695 / 17.73475MHz
2) 24-bit RGB and 16-bit YUV input signals are sup-
ported.
3) Both master and slave systems are supported.
4) 9-bit high-speed DAC is used for DAC output of
composite VIDEO, Y, and C signals.
5) Internal 8-color OSD output function is provided.
6) FSC-TRAP on the Y channel can be turned on and
off.
7) C channel is equipped with an internal chrominance
band-pass filter in addition to the U,V. low-pass filter.
8) 5V single power supply, low power consumption.
(0.4W typ.)
9) Y and C output can be turned off (the power con-
sumption with Y and C off is 0.25W typ.).
1
1 page  
Multimedia ICs
•Application example
(1) Example in Master mode: Doubled clock is input and 24-bit RGB input is used
BU1424K
49 YFILON1B
INT 32
50 PAL GOB
VDD 31
51 VCLK
BCLK 30
52 RSTB
PIXCLK 29
53 CLKSW
HSY 28
54 RD0
0
VSY 27
55 RD1
1
TEST2 26
2
56 RD2
BU1424K
TEST1 25
57 ROSD
IM1 24
3 58 RD3
4 59 RD4
5 60 RD5
61 VDD
62 RD6
6
63 RD7
7
64 GOSD
IM0
NTB
GND
BD7
BD6
BD5
BD4
23
22
21
20
19
18
17
7
6
5
4
012 3 4 56
7
0123
Fig.1
5
5 Page 
Multimedia ICs
Pin No.
Pin name I / O
31
61
41
VDD
AVDD
—
43
9 GND
21 CGND
36
38
VGND
AVSS
—
40 YGND
44
Equivalent circuit
—
BU1424K
Function
Power supply pin for the digital, the
analog and blocks.
— Ground for digital and analog blocks.
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BU1424K.PDF ] | |
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