LTC6947IUFD

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The LTC6947IUFD is a versatile integrated clock module, making it a popular choice for a wide range of applications. It generates clean sine wave outputs with high stability and accuracy, enabling precise data transmission and reliable frequency control in digital and analog systems. This makes it suitable for any clock circuit requiring precise synchronization.

In addition to the standard PLL applications, the clock module also offers multiple on-chip configuration options and can be custom-configured to address diverse requirements. This includes radiocommunication, RF testing, test and measurement and broadcast applications, as well as other advanced applications. It is also ideal for applications where programmable frequency accuracy, stability, and tempco are required.

The LTC6947IUFD works by combining a low-noise oscillator, PLL, and programmable frequency synthesizer. It consists of two independent channels. Each can produce both a reference and a programmable output, controlled by the on-chip phase-locked loop (PLL). The oscillator is based on a quartz resonator which is surrounded by a metal can that works as a Faraday cage for noise immunity. The clock module is housed in a metal can and is thus resistant to spurious signals caused by external factors such as temperature and vibration.

The LTC6947IUFD is programmable via parallel or serial Digital Control Interfaces (DCI). By adjusting the with frequency select (FS) signals and serial control lines, the device generates a sinewave output with high stability at the desired frequency and level. The device features a variety of features including low-phase-noise synthesis, fast settling time, low-power modes, and low-ripple frequency switching. Furthermore, it has an adjustable temperature coefficient, which allows the device to be optimized for a broad range of applications.

The module also contains up to two independent reference outputs which can be independently configured as pulse-width-modulated (PWM), voltage-controlled oscillators (VCO), adjustable ramping outputs for frequency-hopping, differential outputs (optional), and other special functions. The reference outputs can be programmed to either a fixed frequency output or a programmable frequency output with a wide range of output frequencies.

In summary, the LTC6947IUFD is a versatile clock module which provides precision frequency control across a range of applications. Its on-chip oscillator, PLL and programmable frequency synthesizer allow it to be easily configured to produce clean sine wave outputs with high accuracy and minimal noise. Its low-power operation and temperature coefficient adjustment capabilities make it an ideal choice for a variety of applications.

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