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參數資料
| 型號： | 935264425557 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號轉換 |
| 英文描述： | COLOR SIGNAL ENCODER, PQFP44 |
| 封裝： | PLASTIC, SOT-307, QFP-44 |
| 文件頁數： | 33/35頁 |
| 文件大?。?/td> | 261K |
| 代理商： | 935264425557 |
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1997 Jan 06
7
Philips Semiconductors
Preliminary specication
Digital Video Encoder (ConDENC)
SAA7120; SAA7121
handbook, halfpage
02
(1)
6
1
0
1
2
3
4
5
MBE736
4
f (MHz)
Gv
(dB)
(1) CCRS1 = 0; CCRS0 = 0.
Fig.4 Luminance transfer characteristic 2.
During reset (RESET = LOW) and after reset is released,
all digital I/O stages are set to input mode. A reset forces
the I2C-bus interface to abort a running bus transfer and
sets register 3A to 03H, register 61 to 06H,
registers 6BH and 6EH to 00H and bit TTX60 to 0.
All other control registers are not influenced by a reset.
Encoder
VIDEO PATH
The encoder generates out of Y, U and V baseband
signals luminance and colour subcarrier output signals,
suitable for use as CVBS or separate Y and C signals.
Luminance is modified in gain and in offset (the latter
programmable in a certain range to enable different black
level set-ups). A fixed synchronization level in accordance
with standard composite synchronization schemes is
inserted. The inserted blanking level is programmable to
allow for manipulations with Macrovision anti-taping.
Additional insertion of AGC super-white pulses,
programmable in height, is supported.
handbook, full pagewidth
6
8
10
12
14
6
0
02
4
MBE737
6
12
18
30
24
36
42
54
48
f (MHz)
Gv
(dB)
(1)
(2)
(1) SCBW = 1.
(2) SCBW = 0.
Fig.5 Chrominance transfer characteristic 1.
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