The CY25811/12/14 are Spread Spectrum Clock Generator (SSCG) ICs produced by Cypress Semiconductor Corporation for the purpose of reducing electromagnetic interference (EMI) issues. It has a 4 to 32 MHz input frequency range, a 4 to 128 MHz output frequency range, and accepts clock, crystal, and resonator inputs. It offers 1x, 2x, and 4x frequency multiplication: CY25811: 1x; CY25812: 2x; CY25814: 4x. It supports center and down spread modulation, has low power consumption (3.3V = 52 mW-typ @ 6MHz, 3.3V = 60 mW-typ @ 12MHz, 3.3V = 72 mW-typ @ 24MHz) and low cycle-to-cycle jitter (8 MHz = 450 ps-max, 16 MHz = 225 ps-max, 32 MHz = 150 ps-max). It has 8-pin SOIC and TSSOP packages and is suitable for commercial and industrial temperature ranges.
The CY25811, CY25812 and CY25814 are spread‑spectrum clock generator (SSCG) ICs that reduce EMI by modulating the clock frequency. They accept clock, crystal or resonator inputs and provide 1×, 2× or 4× multiplication with center‑spread or down‑spread modulation.
Available in 8‑pin SOIC and 8‑pin TSSOP packages, the devices operate over commercial (0 °C‑70 °C) and industrial (‑40 °C‑85 °C) temperature ranges and feature low power dissipation (≈52 mW at 6 MHz).
| Output Frequency Range | 4 MHz to 128 MHz (depending on multiplication) |
|---|---|
| Supply Voltage | 3.3 V |
| Cycle‑to‑cycle Jitter (8 MHz) | 450 ps max |
| Package Types | 8‑pin SOIC and 8‑pin TSSOP |
| Commercial Temperature Range | 0 °C to 70 °C |
| Industrial Temperature Range | ‑40 °C to 85 °C |
They are offered in 8‑pin SOIC and 8‑pin TSSOP packages.
The maximum cycle‑to‑cycle jitter at 8 MHz is 450 ps.