MK9173-01CS08

Overview

The MK9173-01CS08 is a video genlock PLL clock synthesizer manufactured by IDT (Integrated Device Technology), now part of Renesas Electronics. It provides analog PLL circuit blocks for frequency multiplication using an external divider in the feedback path, enabling high-frequency output from low-frequency inputs. The device integrates a phase detector, charge pump, loop filter, and VCO. Designed for video synchronization, it operates on negative-going clock edges with a single +5V supply. The -01 variant supports output frequencies from 1.25 to 75 MHz, while the -15 variant supports 0.625 to 37.5 MHz. It is housed in an 8-pin SOIC package.

Feature Summary

• Integrates phase detector, charge pump, loop filter, and VCO for analog PLL implementation
• Supports reference clock input range of 12 kHz to 1 MHz
• MK9173-01 output range: 1.25 to 75 MHz; MK9173-15 output range: 0.625 to 37.5 MHz
• On-chip loop filter eliminates external components for basic operation
• Pin and function compatible with AV9173-01/15

Applications

• Video genlock circuits for synchronizing free-running video sources
• Generating video dot clocks from horizontal sync (H-SYNC) signals
• Frequency multiplication using external digital dividers (e.g., ICS674-01)

Procurement Notes

Verify component authenticity as the original manufacturer, Integrated Device Technology (IDT), was acquired by Renesas Electronics Corporation. Confirm the specific suffix (-01 vs -15) matches the required output frequency range. Check for RoHS compliance if lead-free configuration is required, noting that standard ordering may not include the 'LF' suffix unless specified. Ensure the package type (SOIC) aligns with PCB footprint requirements.

Selection Notes

Select the MK9173-01 variant for output frequencies up to 75 MHz or the MK9173-15 for outputs up to 37.5 MHz. The choice depends on the desired dot clock frequency and the available reference input frequency. An external divider must be selected to set the multiplication ratio (N) according to the formula fOUT = fIN x N. Ensure the reference signal is stable with low jitter, as this directly impacts output clock quality. Unused inputs like FS0 and OE must be tied to logic high or low.

Part Context

This component belongs to the MK9173 series of video genlock PLLs originally produced by Integrated Device Technology (IDT). The series includes variants such as the MK9173-01 and MK9173-15, which differ primarily in their maximum output frequency capabilities. The MK9173-01CS08 specifically denotes the -01 frequency variant in an 8-pin SOIC tube package. It is functionally equivalent to the AV9173-01CS08.

Replacement Considerations

The AV9173-01CS08 is a direct pin-and-function compatible replacement. The MK9173-15CS08 serves as a lower-frequency alternative within the same package. For new designs requiring updated features, IDT recommends considering the ICS673-01, ICS1522, or ICS1523.