MK9173-15CS08

Overview

The MK9173-15CS08 is a video genlock PLL clock synthesizer manufactured by Integrated Device Technology (IDT), 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 negative-going clock edge triggering, it supports reference frequencies from 12 kHz to 1 MHz. The -15 variant delivers an output clock range of 0.625 to 37.5 MHz. It operates on a single 5 V supply and is housed in an 8-pin SOIC package.

Feature Summary

• Integrated analog PLL blocks including phase detector, charge pump, loop filter, and VCO
• Supports large frequency multiplication ratios via external feedback divider
• Negative-going clock edge input compatibility for video synchronization
• On-chip loop filter with single 5 V power supply operation

Applications

• Video generator lock (genlock) circuits
• Synchronizing asynchronous video sources to free-running references
• Generating video dot clocks from horizontal sync pulses

Procurement Notes

Verify that the component is sourced as an IDT product, as Renesas acquired IDT's clock business. Confirm the suffix 'CS08' corresponds to the standard 8-pin SOIC tube packaging. Ensure the specific '-15' designation is required for the half-frequency output range compared to the '-01' variant.

Selection Notes

Select the MK9173-15CS08 when the application requires an output frequency range of 0.625 to 37.5 MHz. This variant outputs exactly half the frequency of the MK9173-01 for identical input conditions. Ensure the design includes an external digital divider, such as the ICS674-01, to establish the necessary feedback ratio for the desired dot clock frequency.

Part Context

This component is functionally and pin-compatible with the AV9173-15CS08. Both parts utilize the same silicon die and are active orderable items. The MK9173 series serves as the successor or alternative branding within the IDT portfolio for video genlock applications prior to broader Renesas integration.

Replacement Considerations

The AV9173-15CS08 is a confirmed direct substitute sharing the same die. For new designs, datasheet recommendations include the ICS673-01, ICS1522, or ICS1523.