CY28349BOC

Product Overview

The CY28349BOC from Cypress Semiconductor Corp is a single-circuit clock synthesizer and driver intended for surface-mount designs. It accepts crystal or LVTTL inputs and provides clock outputs while incorporating a PLL. The device operates from a 3.135 V to 3.465 V supply and is rated for a 0°C to 70°C ambient temperature range. Its 48-BSSOP package, 0.295 in (7.50 mm) wide, supports surface-mount assembly. The input-to-output ratio is 1:20, with a maximum frequency of 1 MHz.

Key Features

• Clock synthesizer and driver function with PLL, implemented as one circuit.
• Input options include crystal and LVTTL, with non-differential input and output.
• Provides clock output with a 1 MHz maximum frequency.
• Operates from a 3.135 V to 3.465 V supply.
• Supports a 1:20 input-to-output ratio, divider capability, and no multiplier function.
• Surface-mount 48-BSSOP package, 0.295 in (7.50 mm) wide, for 0°C to 70°C TA operation.

Applications

• Clock generation for digital boards using crystal or LVTTL timing inputs.
• Clock distribution in single-supply logic subsystems operating within the 0°C to 70°C temperature range.
• Timing path synthesis in surface-mount assemblies that require a PLL-based clock driver.
• Reference clock handling in equipment with 3.135 V to 3.465 V logic supply rails.

Design & Procurement Notes

Design teams should confirm that the crystal or LVTTL source, clock output, and 3.135 V to 3.465 V supply match the circuit, since the device is a single non-differential clock synthesizer/driver with a 1 MHz maximum frequency. The 48-BSSOP footprint requires surface-mount layout for 0°C to 70°C ambient operation. Procurement should verify the 48-SSOP package and the 1:20 ratio, divider capability, and no-multiplier behavior against the intended timing architecture.