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参数资料
| 型号： | LT1195CS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/12页 |
| 文件大小： | 0K |
| 描述： | IC OP-AMP LOW-PWR HI-SPEED 8SOIC |
| 标准包装： | 2,500 |
| 应用： | 通用 |
| 电路数： | 1 |
| 转换速率： | 165 V/µs |
| 电流 - 电源： | 12mA |
| 电流 - 输出 / 通道： | 20mA |
| 电压 - 电源，单路/双路(±)： | 4.75 V ~ 16 V，±2.38 V ~ 8 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
10
LT1195
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APPLICATIO S I FOR ATIO
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Send Color Video Over Twisted-Pair
With an LT1195 it is possible to send and receive color
composite video signals more than 1000 feet on a low cost
twisted-pair. A bidirectional “video bus” consists of the
LT1195 op amp and the LT1187 video difference amplifier.
A pair of LT1195s at TRANSMIT 1, is used to generate
differential signals to drive the line which is back-termi-
nated in its characteristic impedance. The LT1187
twisted-pair receiver, converts signals from differential to
single-ended. Topology of the LT1187 provides for cable
compensation at the amplifier’s feedback node as shown.
In this case, 1000 feet of twisted-pair is compensated with
1000pF and 50 to boost the 3dB bandwidth of the
system from 750kHz to 4MHz. This bandwidth is adequate
to pass a 3.58MHz chrome subcarrier and the 4.5MHz
sound subcarrier. Attenuation in the cable can be compen-
sated by lowering the gain set resistor RG. At TRANSMIT
2, another pair of LT1195s serve the dual function to
provide cable termination via low output impedance and
generate differential signals for TRANSMIT 2. Cable termi-
nation is made up of 15 and 33 attentuators to reduce
the differential input signal to the LT1187. Maximum input
signal for the LT1187 is 760mVP-P.
1.5MHz Square Wave Input and Equalized
Response Through 1000 Feet of Twisted-Pair
1.5MHz Square Wave Input and Unequalized
Response Through 1000 Feet of Twisted-Pair
Multiburst Pattern Passed Through
1000 Feet of Twisted-Pair
Vector Plot of Standard Color Burst Through
1000 Feet of Twisted-Pair
1195 A109
1195 A110
1195 A111
1195 A108
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相关代理商/技术参数 |
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