Mounting Type
Mounting Type refers to the method by which an electronic component is attached to a printed circuit board (PCB) or other surface. Common mounting types include:
* Through-hole: Component leads are inserted into holes in the PCB and soldered on the other side.
* Surface-mount: Component is placed on the surface of the PCB and soldered in place.
* Press-fit: Component is pressed into place on the PCB without soldering.
* Socket: Component is inserted into a socket on the PCB, allowing for easy replacement.
The mounting type is determined by factors such as the component's size, shape, and power requirements.
Surface Mount
Package / Case
Package / Case refers to the physical housing or enclosure that encapsulates an electronic component. It provides protection, facilitates handling, and enables electrical connections. The package type determines the component's size, shape, pin configuration, and mounting options. Common package types include DIP (dual in-line package), SOIC (small outline integrated circuit), and BGA (ball grid array). The package also influences the component's thermal and electrical performance.
20-SOIC (0.295, 7.50mm Width)
Supplier Device Package
20-SOIC
Operating Temperature
Operating Temperature is the range of temperatures at which an electronic component can function properly. It is typically specified in degrees Celsius (°C) and indicates the minimum and maximum temperatures at which the component can operate without experiencing damage or degradation. Operating Temperature is an important parameter to consider when designing electronic circuits, as it ensures that the components will function reliably in the intended operating environment.
0°C~85°C
Series
Series, in the context of electronic components, refers to the arrangement of components in a circuit. When components are connected in series, they form a single path for current to flow through. The total resistance of a series circuit is the sum of the individual resistances of each component. Series connections are often used to control the flow of current in a circuit, as the total resistance can be adjusted by changing the number or type of components in the series.
ClockWorks®
Part Status
Part Status is an electronic component parameter that indicates the availability and production status of a component. It is typically used to inform customers about the availability of a component, whether it is in production, end-of-life, or obsolete. Part Status can also provide information about any restrictions or limitations on the component's use, such as whether it is only available for certain applications or if it has been discontinued.
Discontinued
Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a measure of the susceptibility of a surface mount electronic component to moisture-induced damage during soldering. It is classified into six levels, from 1 (least sensitive) to 6 (most sensitive). MSL is determined by the materials used in the component's construction, including the solderability of its terminals and the presence of moisture-absorbing materials. Components with higher MSL ratings require more stringent handling and storage conditions to prevent moisture absorption and subsequent damage during soldering.
1 (Unlimited)
Voltage - Supply
3.135V~5.25V
Number of Circuits
Number of Circuits refers to the number of independent signal paths within an electronic component. It indicates how many separate circuits or channels the component can handle simultaneously. For example, an operational amplifier with a Number of Circuits of 2 can amplify two separate input signals independently. This parameter is crucial for determining the component's functionality and its suitability for specific applications.
1
PLL
PLL stands for Phase-Locked Loop. It is an electronic circuit that generates an output signal with a phase that is locked to the phase of an input signal. PLLs are used in a wide variety of applications, including frequency synthesis, modulation, and demodulation.
In a PLL, the input signal is compared to the output signal by a phase detector. The output of the phase detector is then used to adjust the frequency of the output signal until it is in phase with the input signal.
PLLs can be used to generate a wide range of output frequencies, from very low frequencies to very high frequencies. They can also be used to generate signals with a variety of different waveforms, including sine waves, square waves, and triangle waves.
Yes
Differential - Input:Output
Yes/Yes
Divider/Multiplier
Yes/No
RoHS Status
Non-RoHS Compliant
Description
The SY89421V is a digital Phase Locked Loop (PLL) based on Micrel-Synergy's differential PLL technology. It operates in the 30MHz to 560MHz reference input frequency range, and up to 2000MHz with the HFIN input and an external VCO. The phase-frequency detector provides excellent PLL locking and tracking characteristics. The VCO has a frequency range covering more than a 2:1 ratio from 480MHz to 1120MHz.
Feedback for the loop is realized by connecting FOUT, FOUT to FIN, FIN by means of external circuitry. This allows for the insertion of additional circuitry off-chip in the feedback paths, such as an additional divider and/or buffer. Pulldown resistors are required for the FOUT and FOUT pins. High frequency inputs HFIN, HFIN and corresponding outputs HFOUT, HFOUT are featured for use with external components such as an active loop filter and a high frequency VCO.
Select pins S1 and S2 are used to program the N divider for optimum VCO operation. Select pin S3 allows bypassing the N divider, enabling the PLL to output the VCO directly. Select pin S4 is used to select off-chip or on-chip VCO. Select pin S5 enables the divide-by-two prescaler, which is useful in frequency doubling applications. All Select pins are TTL compatible.
Features
3.3V and 5V power supply options
1.12GHz maximum VCO frequency
30MHz to 560MHz reference input operating frequency
External 2.0GHz VCO capability
Low jitter differential design
Frequency doubler mode
PECL Differential output
External loop filter optimizes performance/cost
Available in 20-pin SOIC package
Applications
Workstations
Advanced communications
High-performance computing