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参数资料
| 型号： | FMS6690MTC20 |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 消费家电 |
| 英文描述： | SOGC THICK FILM RESISTOR NETWORKS |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO20 |
| 封装： | LEAD FREE, TSSOP-20 |
| 文件页数： | 10/12页 |
| 文件大小： | 317K |
| 代理商： | FMS6690MTC20 |
FMS6690 Rev. 2B
7
www.fairchildsemi.com
FMS6690
Six
Channel,
6th
Or
der
SD/PS/HD
Video
Filter
Driver
Applications Information
Functional Description
The FMS6690 Low Cost Video Filter (LCVF) provides 6dB gain
(9dB optional, contact factory for further information) from input
to output. In addition, the input will be slightly offset to optimize
the output driver performance. The offset is held to the minimum
required value to decrease the standing DC current into the
load. Typical voltage levels are shown in the diagram below.
Figure 12. Typical Voltage Levels
The FMS6690 provides an internal diode clamp to support AC-
coupled input signals. If the input signal does not go below
ground, the input clamp will not operate. This allows DAC out-
puts to directly drive the FMS6690 without an AC coupling
capacitor. The worst-case sync tip compression due to the
clamp will not exceed 7mV. The input level set by the clamp
combined with the internal DC offset will keep the output within
its acceptable range. When the input is AC-coupled, the diode
clamp will set the sync tip (or lowest voltage) just below ground.
For symmetric signals like C, U, V, Cb, Cr, Pb and Pr, the aver-
age DC bias is fairly constant and the inputs can be AC-coupled
with the addition of a pull-up resistor to set the DC input voltage.
DAC outputs can also drive these same signals without the AC
coupling capacitor. A conceptual illustration of the input clamp
circuit is shown below:
Figure 13. Input Clamp Circuit
I/O Congurations
For DC-coupled DAC drive with DC-coupled outputs, use this
conguration:
Figure 14. DC-coupled Inputs and Outputs
Alternatively, if the DAC’s average DC output level causes the
signal to exceed the range of 0V to 1.4V, it can be AC-coupled
as follows:
Figure 15. AC-coupled Inputs, DC-coupled Outputs
When the FMS6690 is driven by an unknown external source or
a SCART switch with its own clamping circuitry, the inputs
should be AC-coupled as follows:
Figure 16. SCART Conguration with DC-coupled
Outputs
There will be a 280mV offset from the DC input level to the
DC output level. VOUT = 2 * VIN + 280mV
0.0 -> 0.02V
0.3 -> 0.32V
0.65 -> 0.67V
1.0 -> 1.02V
VIN
0.28V
0.88V
1.58V
2.28V
Driven by:
DC-Coupled DAC Outputs
AC-Coupled and Clamped
Y, CV, R, G, B
VOUT
0.15V
0.5V
0.85V
VIN
0.58V
1.28V
1.98V
Driven by:
AC-Coupled and Biased
U, V, Pb, Pr, C
VOUT
DVD or
STB
SoC
DAC
Output
75
Ω
LCVF
Clamp
Inactive
0V - 1.4V
DVD or
STB
SoC
DAC
Output
LCVF
Clamp
Active
0.1u
0V - 1.4V
75
Ω
75
LCVF
Clamp
Active
0.1u
External Video
source must
be AC-coupled.
0V - 1.4V
75
YOUT
Driver
YIN
0.65V
800k
Ω
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| FMS6G10US60S | 功能描述:IGBT 模块 600V 10A MODULE RoHS:否 制造商:Infineon Technologies 产品:IGBT Silicon Modules 配置:Dual 集电极—发射极最大电压 VCEO:600 V 集电极—射极饱和电压:1.95 V 在25 C的连续集电极电流:230 A 栅极—射极漏泄电流:400 nA 功率耗散:445 W 最大工作温度:+ 125 C 封装 / 箱体:34MM 封装: |
| FMS6G15US60 | 功能描述:IGBT 模块 600V 15A MODULE RoHS:否 制造商:Infineon Technologies 产品:IGBT Silicon Modules 配置:Dual 集电极—发射极最大电压 VCEO:600 V 集电极—射极饱和电压:1.95 V 在25 C的连续集电极电流:230 A 栅极—射极漏泄电流:400 nA 功率耗散:445 W 最大工作温度:+ 125 C 封装 / 箱体:34MM 封装: |
| FMS6G15US60S | 功能描述:IGBT 模块 600V 15A MODULE RoHS:否 制造商:Infineon Technologies 产品:IGBT Silicon Modules 配置:Dual 集电极—发射极最大电压 VCEO:600 V 集电极—射极饱和电压:1.95 V 在25 C的连续集电极电流:230 A 栅极—射极漏泄电流:400 nA 功率耗散:445 W 最大工作温度:+ 125 C 封装 / 箱体:34MM 封装: |
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