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ML6426CS-4 参数 Datasheet PDF下载

ML6426CS-4图片预览
型号: ML6426CS-4
PDF下载: 下载PDF文件 查看货源
内容描述: 高带宽三通道视频滤波器,具有缓冲输出的RGB或YUV [High Bandwidth Triple Video Filters with Buffered Outputs for RGB or YUV]
分类和应用: 有源滤波器光电二极管LTE
文件页数/大小: 17 页 / 289 K
品牌: MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
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September 1999
PRELIMINARY
ML6426
High Bandwidth Triple Video Filters with Buffered
Outputs for RGB or YUV
GENERAL DESCRIPTION
The ML6426 are a family of triple video filters with
buffered outputs. There are several versions of the
ML6426, each with different passband cut-off frequencies
of 6.7MHz, 12MHz, 24MHz, 30MHz, 36MHz, and
48MHz. Each channel contains a 4
th
-order Butterworth
lowpass reconstruction video filter. The filter is optimized
for minimum overshoot and flat group delay and
guaranteed differential gain and phase at the outputs of
the integrated cable drivers.
All input signals from DACs are AC coupled into the
ML6426. All channels have DC restore circuitry to clamp
the DC input levels during video H-sync, using an output
feedback clamp. An external H-sync signal is required for
this purpose.
All outputs must be AC coupled into their loads. Each
output can drive 2V
P-P
into a 150W load. All channels
have a gain of 2 (6dB) at 1V
P-P
input levels.
FEATURES
s
s
5V ±10% operation
RGB/YUV filters for ATSC Digital Television VESA
Standard
2:1 Mux Inputs for multiple RGB/YUV inputs
Triple Reconstruction Filter options for 6.7, 12, 24, 30,
36, and 48MHz to handle various line rates
Multiple ML6426 outputs can be paralleled to drive
RGB/YUV outputs at different frequencies for various
line rates by means of Disable/Enable pin.
6dB drivers and sync tip clamps for DC restore
DC restore with minimal tilt
0.4% differential gain on all channels
0.4º differential phase on all channels
0.8% total harmonic distortion on all channels
2kV ESD protection
s
s
s
s
s
s
s
BLOCK DIAGRAM
12
VCCO
RINA/YINA
RINB/YINB
GINA/UINA
GIN/UINB
BINA/VINA
BINB/VINB
MUX
TRANSCONDUCTANCE
ERROR AMP
A/B MUX
1
SYNCIN
16
DISABLE
15
GNDO
14
GND
3
+
4
VCC
2
5
6
7
8
9
MUX
TRANSCONDUCTANCE
ERROR AMP
MUX
TRANSCONDUCTANCE
ERROR AMP
+
+
4th-ORDER
FILTER A
0.5V
4th-ORDER
FILTER B
0.5V
4th-ORDER
FILTER C
0.5V
×2
ROUT/YOUT
13
×2
GOUT/UOUT
11
×2
BOUT/VOUT
10
Filter A
Filter B
Filter C
ML6426-1
6.7MHz
6.7MHz
6.7MHz
ML6426-2
12MHz
12MHz
12MHz
ML6426-3
24MHz
24MHz
24MHz
ML6426-4
30MHz
30MHz
30MHz
ML6426-5
36MHz
36MHz
36MHz
ML6426-6
48MHz
48MHz
48MHz
1