IDT2308A-2HDC

Differential - Input:Output:	No/No
Base Part Number:	IDT2308-2
Supplier Device Package:	16-SOIC
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	3 V ~ 3.6 V
Divider/Multiplier:	Yes/Yes
Frequency - Max:	133.3MHz
Series:	--
Ratio - Input:Output:	1:8
Number of Circuits:	1
Output:	LVTTL
Input:	LVTTL
PLL:	Yes with Bypass
Type:	Multiplier, Zero Delay Buffer
Part Status:	Obsolete
Packaging:	Tube

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IDT2308A-2HDC Application Field and Working Principle

Clock/Timing - Clock Generators, PLLs, Frequency SynthesizersIn today’s world of ever increasing demand for faster clocks, a device capable of generating signals with accurate and stable frequencies is of utmost importance. The IDT2308A-2HDC clock generator with its integrated PLL, is a device that satisfies this need. This device is used in a variety of applications ranging from constructing digital video receivers (DVRs) and set-top boxes (STBs) to routing switches for Ethernet, Fibre Channel and other networking applications.The IDT2308A-2HDC is designed to generate reliable and accurate clock signals for uses that require high performance. It is composed of two main components: the phase-locked loop (PLL) and the voltage-controlled oscillator (VCO).The PLL acts as the core of the IDT2308A-2HDC and its primary function is to lock onto an external reference signal and output frequencies corresponding to the reference. Internally, the IDT2308A-2HDC’s PLL is composed of four components; the reference signal source, a phase detector, a voltage-controlled oscillator (VCO), and a feedback divider.The external reference source provides the device with a stable reference signal. This signal is then passed onto the phase detector, which is responsible for comparing the phase of the reference signal to the device’s internally generated signal. The output of the phase detector is used to adjust the VCO to generate the internal signal to match the reference’s phase. When the reference signal and the internally generated signal reach a match in phase, the PLL is said to be “locked”.The VCO’s output signal is passed through the feedback divider. The feedback divider produces an output signal which is proportional to the division of the VCO’s signal. This signal is then fed back to the phase detector and is used to adjust the VCO’s frequency. The division ratio can be changed to adjust the PLL’s output frequency. The PLL will then output a signal that is locked to the reference signal’s frequency and phase.The circuit in the IDT2308A-2HDC is designed to produce a low jitter signal that is suitable for applications such as clock synchronization, signal routing, and signal distribution. Additionally, the VCO offers a wide range of clock frequencies that can be adjusted to match a wide variety of frequencies. In terms of power consumption, the IDT2308A-2HDC features a typical power consumption of only 0.53W, which makes it suitable for applications with limited power budgets. Furthermore, the device boasts an operating temperature range of -40°C to +85°C, which makes it suitable for use in harsh environments. In conclusion, the IDT2308A-2HDC is an excellent device for situations where accurate and stable clock signals are necessary. It is ideal for a wide range of applications including DVRs, STBs, as well as routing switches for Ethernet, Fibre Channel and other networking applications. With its low power consumption and wide operating temperature range, the IDT2308A-2HDC is an ideal choice for a variety of needs.

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