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| TPS2044BD资料 | |
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TPS2044BD PDF Download |
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File Size : 105 KB
Manufacturer:TI Description: The TPS2044BD is a specialized oscillator gain stage with high gain output buffer including an enable. The QHG/QHG outputs have a voltage gain several times greater than the Q/Q outputs.¯¯ The TPS2044BD provides a selectable enable that allows continuous oscillator operation. See truth table below for enable function. If Enable pull-up is desired in the CMOS mode, an external 20kΩ resistor connecting EN to VCC will override the on-chip pull-down resistor. The TPS2044BD also provides a VBB and 470Ω internal bias resistors from D to VBB and D to VBB. The VBB pin can support 1.5mA sink/source current. Bypassing¯ VBB to ground with a 0.01 µF capacitor is recommended. Outputs Q/Q each have a selectable on-chip pull-down current source. See truth table below for current source¯ functions. External resistors may also be used to increase pull-down current to a maximum total of 25mA. Outputs QHG/QHG each have an optional on-chip pull-down current source of 10mA. When pad/pin VEEP is left¯ open (NC), the output current sources are disabled and the QHG /QHG operate as standard PECL/ECL. When VEEP is¯ connected to VEE , the current sources are activated. The QHG /QHG pull-down current can be decreased, by using a¯ resistor to connect from VEEP to VEE. NOTE: Specifications in the ECL/PECL tables are valid when thermal equilibrium is established. |
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| 1PCS | 100PCS | 1K | 10K | ||
| 价 格 | |||||
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型 号：TPS2044BD 厂 家：TI 封 装：06+ 批 号：288 数 量： 说 明： |
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运 费： 所在地： 新旧程度： |
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