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SN74LS628DR
+Lista de MateriaisIC OSC VCO 20MHZ 14-SOIC
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FabricanteTexas Instruments
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Peça do Fabricante #SN74LS628DR
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Ficha Técnica SN74LS628DR DataSheet
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Especificações
| Atributo | Valor |
| Supplier | Texas Instruments,Rochester Electronics, LLC |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| Series | 74LS |
| ProductStatus | Active |
| Type | VCO |
| Frequency | 20MHz |
| Voltage-Supply | 4.75V ~ 5.25V |
| Current-Supply | 20 mA |
| OperatingTemperature | 0°C ~ 70°C |
| Package/Case | 14-SOIC (0.154, 3.90mm Width) |
| SupplierDevicePackage | 14-SOIC |
Visão Geral
Description
Key features include a wide frequency range, typically from a few kHz to several MHz, and linear frequency modulation. It operates on a single 5V power supply, which is standard for most TTL (Transistor-Transistor Logic) devices. The SN74LS628DR comes in a SOIC (Small Outline Integrated Circuit) package, making it suitable for surface-mount technology (SMT) applications. Additionally, it offers stability over a range of temperatures and supply voltages, which is crucial for precision applications. Its compact size and reliable performance make it a popular choice in digital electronics where frequency control is essential.
Equivalent
1. MC1648 from ON Semiconductor
2. CD4046B from Texas Instruments (for similar PLL applications)
3. LM566 from Texas Instruments (voltage-controlled oscillator)
4. NE566 from Philips/NXP (voltage-controlled oscillator)
These alternatives may not be direct drop-in replacements but can serve similar functions in frequency synthesis and VCO applications. Always check the specific requirements and specifications for compatibility.
Features
1. Frequency Range: Operates over a wide frequency range, typically from 0 Hz to 20 MHz.
2. Supply Voltage: Requires a single 5V supply for operation.
3. Voltage Control: The output frequency can be adjusted using a control voltage, making it suitable for applications requiring frequency modulation.
4. Temperature Stability: Exhibits good frequency stability over a range of temperatures, ensuring reliable performance in various environments.
5. Low Power Consumption: Designed to consume minimal power, making it efficient for use in power-sensitive applications.
6. Output: Provides both TTL-compatible square wave and sinusoidal wave outputs.
7. Phase-Locked Loop (PLL) Compatibility: Can be used in conjunction with PLL circuits for frequency synthesis and modulation.
8. Package: Available in a small-outline package (SOP), ideal for space-constrained applications.
These features make the SN74LS628DR suitable for applications in communication systems, signal processing, and function generation.
Pinout
Key functions of the SN74LS628 include:
- Voltage-Controlled Oscillation: It generates a frequency output signal whose frequency is determined by an input control voltage.
- Frequency Adjustment: The oscillation frequency can be adjusted over a wide range by changing the voltage applied to the control pin.
- Wide Range of Applications: It is used in applications like frequency modulation, tone generation, or as a clock generator in digital circuits.
For precise pin assignments and functions, including power supply, ground, frequency control, and output pins, referring to the manufacturer's datasheet is recommended. The datasheet provides detailed pin configurations and electrical characteristics essential for proper device implementation.
Manufacturer
Application
1. Frequency Synthesis: It can generate precise frequencies for communication systems, such as radio transmitters and receivers.
2. Phase-Locked Loops (PLLs): Used in PLL circuits to stabilize and control frequencies in applications like clock generation and signal synchronization.
3. Modulation/Demodulation: Useful in modulating signals for transmission and demodulating received signals in communication devices.
4. Signal Processing: Employed in digital signal processing applications to create clock signals or timing references.
5. Instrumentation: Utilized in test equipment for waveform generation and frequency measurement.
These capabilities make it valuable in telecommunications, audio, and instrumentation applications.