- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄384114 > BA7242 (Rohm CO.,LTD.) Color TV signal encoder PDF資料下載
參數(shù)資料
| 型號： | BA7242 |
| 廠商： | Rohm CO.,LTD. |
| 英文描述： | Color TV signal encoder |
| 中文描述： | 彩色電視信號編碼器 |
| 文件頁數(shù)： | 4/5頁 |
| 文件大?。?/td> | 61K |
| 代理商： | BA7242 |
4
Multimedia ICs
BA7242F
Measurement circuit
1
2
3
4
5
6
7
BIN input
GIN input
RIN input
V
CC
Composite SYNC
(BFP)
Burst flag pulse
YOUT
measurement point
Vcc
14
13
11
10
9
8
CLAMP
BFP
BFP
BFP
V
C
S
N
B
F
R
M
F
B
M
C
G
Y
M
S
M
S
V
C
G
N
M
P
G
F
G
CLAMP
CLAMP
0.1
μ
0.1
μ
0.1
μ
V
CC
VOUT
measurement point
75
75
75
75
75
220
μ
220
μ
COUT
measurement point
75
0.47
μ
0.1
μ
560
4.7k
Color subcarrier
12
During Low level input, the SYNC signal is output to
the YOUT, VOUT, and SYNCOUT pins.
(2) The burst flag pulse is input to the BFPIN pin.
During Low level input, the burst signal is output to the
COUT and VOUT pins. For PAL, the phase inversion of
the chroma signal occurs according to this signal.
Furthermore, this signal also acts as the timing for the
pedestal clamp for the RIN, GIN, and BIN pins. By
using an external condenser for charging during Low
level input, the pedestal levels for the RIN, GIN, and
BIN pins are maintained at a uniform level.
(3) The NT / PAL pin is for selecting either NTSC or
PAL. For NTSC, this pin is connected to V
CC
and for
PAL, this pin is connected to GND.
(4) The SCIN pin is the color subcarrier input pin. Input
either a pulse wave or a sine wave of frequency
3.579545MHz for NTSC or of frequency 4.433619MHz
for PAL.
(5) The COUT pin is the output pin for the chroma sig-
nal, and the YOUT pin is the output pin for the lumi-
nance signal. This is compatible with the S pin because
the chroma signal and the luminance signal can be out-
put separately. Both pins have internal 75
drivers.
(6) The VOUT pin is the output pin for a color TV signal
and has an internal 75
driver.
Operation description
相關PDF資料 |
PDF描述 |
|---|---|
| BA7274 | 4-channel video-signal PRE/REC amplifier |
| BA7356 | VIF/SIF SIGNAL PROCESSOR |
| BA7356S | VIF/SIF SIGNAL PROCESSOR |
| BA7357 | VIF / SIF signal processor |
| BA7605 | Video signal switcher |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| BA7242F | 制造商:ROHM 制造商全稱:Rohm 功能描述:Color TV signal encoder |
| BA7244BS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| BA7252S | 制造商:ROHM 制造商全稱:Rohm 功能描述:Switchless Video signal Playback/Record Amplifier |
| BA7253S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
| BA7254S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Consumer IC |
發(fā)布緊急采購，3分鐘左右您將得到回復。