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BU1424K PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 BU1424K
기능 NTSC / PAL digital RGB encoder
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BU1424K 데이터시트, 핀배열, 회로
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.).
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BU1424K pdf, 반도체, 판매, 대치품
Multimedia ICs
BU1424K
Absolute maximum ratings (Ta = 25°C)
Parameter
Symbol
Limits
Applied voltage
VDD, AVDD
– 0.5 ~ + 7.0
Input voltage
VIN – 0.5 ~ VDD + 0.5
Storage temperature
Tstg
– 55 ~ + 150
Power dissipation
Pd
13501
1 Reduced by 11mW for each increase in Ta of 1°C over 25°C.
When mounted on a 120mm × 140mm × 1.0mm glass epoxy board.
Operation is not guaranteed at this value.
Not designed for radiation resistance.
Unit
V
V
°C
mW
Recommended operating conditions (Ta = 25°C)
Parameter
Symbol
Limits
Power supply voltage
VDD = AVDD
+ 4.75 ~ + 5.25
Input high level voltage
VIH
+ 2.1 ~ VDD
Input low level voltage
VIL
0 ~ + 0.8
Analog input voltage
VAIN
0 ~ AVDD
Operating temperature
Topr
– 25 ~ + 60
Should be used at VDD = AVDD.
Unit
V
V
V
V
°C
Electrical characteristics (unless otherwise noted, Ta = 25°C, VDD = AVDD = 5.0V, GND = AVSS = VGND = CGND =
YGND)
Digital block
Parameter
Burst frequency 1
Burst frequency 2
Burst cycle
Operating circuit current 1
Operating circuit current 2
Output high level voltage
Output low level voltage
Input high level voltage
Input low level voltage
Input high level current
Input low level current
DAC block
Parameter
DAC resolution
Linearity error
Y white level current
Y black level current
Y zero level current
V white level current
V black level current
V zero level current
Symbol
fBST1
fBST2
CBST
Idd1
Idd2
VOH
VOL
VIH
VIL
IIH
IIL
Symbol
RES
EL
IYW
IYB
IYZ
IYW
IYB
IYZ
Min.
4.0
2.1
– 10
– 10
Typ.
3.57954
4.43361
9
80
40
4.5
0.5
0.0
0.0
Max.
1.0
0.8
10.0
10.0
Min.
– 10
– 10
Typ.
9
± 0.5
25.14
7.24
0.0
25.14
7.24
0.0
Max.
± 3.0
10.0
10.0
Unit
MHz
MHz
CYC
mA
mA
V
V
V
V
µA
µA
Conditions
27MHz color bar
27MHz color bar PD mode
IOH = – 2.0mA
IOH = 2.0mA
Unit
BITS
LSB
mA
mA
µA
mA
mA
µA
IR = 1.2k
Conditions
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BU1424K 전자부품, 판매, 대치품
Multimedia ICs
Equivalent circuits
Pin No.
Pin name
I/O
2~8
10
GD (7: 0)
I
11 ~ 14
17 ~ 20
BD (7: 0)
I
54 ~ 56
58 ~ 60
62.63
RD (7: 0)
I
1 ROSD
57
64
GOSD
BOSD
I
15 OSDSW
23
24
IM0
IM1
I
16
CDGSWB
I
22
NTB
I
28
HSY
I/O
Equivalent circuit
BU1424K
Function
G data input pin for 24-bit RGB input.
Y data input pin for 16-bit YUV input.
B data input pin for 24-bit RGB input.
U, V data input pins for 16-bit YUV
input.
R data input pin for 24-bit RGB input.
OSD data input pin when using the
OSD function.
When the OSDSW pin is HIGH, input
to the ROSD, GOSD, and BOSD pins
takes precedence over RGB, and the
data is converted.
Control pins used to select RGB (24-
bit), YUV (16-bit) or DAC Through as
the input mode.
Switches the mode between Video-
CD (HIGH) and CD-G (LOW).
Switches the mode between NTSC
(LOW) and PAL (HIGH).
This is the horizontal synchronization
signal pin. Negative polarity HSYNC
signals are input (when SLABEB =
LOW) or output (when SLABEB =
HIGH) here. This is also used as the
synchronization signal for fixing the
PIXCLK output phase.
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부품번호상세설명 및 기능제조사
BU1424K

NTSC / PAL digital RGB encoder

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