Skyworks Solutions Inc. 552CM000109DG

Overview

552CM000109DG from Skyworks Solutions is a dual-frequency voltage-controlled crystal oscillator (VCXO) with factory-programmed output frequencies of 10 MHz and 109 MHz, 3.3 V CMOS output, ±50 ppm temperature stability, 90 ppm/V tuning slope, and operation from –40 °C to +85 °C in an industry-standard 5 × 7 mm 6-pin package. It delivers low-jitter timing for clock and data recovery in xDSL and optical modules.

For engineers reviewing the 552CM000109DG datasheet, 552CM000109DG pinout, 552CM000109DG application, or 552CM000109DG equivalent, this page provides verified electrical specifications, dual-frequency switching behavior, CMOS output drive capability up to 160 MHz, VC control voltage linearity, and thermal performance under industrial ambient conditions.

Technical Context

The 552CM000109DG implements Skyworks' third-generation DSPLL® architecture with an internal fixed crystal reference, enabling two user-selectable output frequencies (10 MHz and 109 MHz) via the FS pin. Its analog VC input accepts 0–VDD control voltage with 90 ppm/V tuning slope and ±5% incremental linearity over 10–90% VDD range.

This VCXO supports CMOS output with 0.8×VDD VOH and 0.4 V VOL into 32 mA loads, 1 ns rise/fall time at CL = 15 pF, and 45–55% duty cycle symmetry. Power-up time is ≤10 ms, and frequency settling after FS transition is ≤10 ms - critical for dynamic clock source selection in telecom PHY layers.

Key Specifications

Pinout & Package

552CM000109DG is housed in an industry-standard RoHS-compliant 5 × 7 mm, 6-pad surface-mount package with exposed pad thermal path (θJA = 84.6 °C/W). Pin 1 is marked by a dot; top marking includes "552", revision "D", and trace code.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-frequency VCXO applications.

Compared with 552CM000109DG, Si552CM000108DG serves higher-frequency serial applications but cannot replace the 10/109 MHz pair, while Si542BA000109DG offers tighter stability but eliminates voltage control and dual-frequency switching - making it unsuitable for adaptive timing architectures.

Availability

552CM000109DG is available at Aetrix Electronics and suitable for SONET/SDH line cards, xDSL central office equipment, and optical transceivers requiring stable component supply, guaranteed long-term availability, and RoHS-compliant packaging.

Supply support for 552CM000109DG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Skyworks Solutions is a global semiconductor company specializing in analog and mixed-signal connectivity solutions, with leadership in RF, timing, and precision analog products.

The Si552 product line is designed for high-performance, programmable timing in communications infrastructure - delivering dual-frequency agility, ultra-low jitter, and factory-configurable parameters to replace legacy SAW- and crystal-based VCXOs.

FAQ

What are the exact factory-programmed frequencies for 552CM000109DG?

The 552CM000109DG is factory-programmed for two precise output frequencies: 10.000000 MHz when FS = 0, and 109.000000 MHz when FS = 1. These values are laser-trimmed and verified during final test; no field programming is possible. Both frequencies maintain ±50 ppm stability across –40 to +85 °C and exhibit <0.67 ps RMS phase jitter (12 kHz–20 MHz) at 109 MHz with KV = 90 ppm/V.

Does 552CM000109DG support LVDS or LVPECL outputs?

No, 552CM000109DG is configured exclusively for CMOS output, as indicated by the "C" in the second option code position of its part number. It delivers single-ended 3.3 V CMOS signals with VOH ≥ 2.64 V and VOL ≤ 0.4 V at 32 mA load. LVDS and LVPECL variants exist in the Si552 family (e.g., 552AFxxxxx), but 552CM000109DG does not include differential output circuitry - CLK− is a no-connect terminal.

What is the absolute pull range (APR) of 552CM000109DG?

The 552CM000109DG has a minimum absolute pull range (APR) of ±80 ppm at 3.3 V supply, calculated as (0.5 × 3.3 V × 90 ppm/V) − 50 ppm (stability) − 10 ppm (15-year aging). This APR enables reliable lock to reference clocks with up to ±80 ppm initial tolerance and drift over temperature and lifetime - sufficient for xDSL and SONET/SDH applications where master clock stability is ±50 ppm.

How does the FS pin function on 552CM000109DG?

The FS pin on 552CM000109DG is a digital input with an internal 17 kΩ pull-up to VDD. When pulled low (≤0.5 V), it selects the first frequency (10 MHz); when high (≥2.475 V), it selects the second (109 MHz). Frequency switching occurs within ≤10 ms, and the device maintains valid output during transition. No external pull-up resistor is required, and the pin is compatible with standard 3.3 V logic drivers.

Is 552CM000109DG compliant with lead-free and RoHS requirements?

Yes, 552CM000109DG is Pb-free and RoHS-compliant, as confirmed by Skyworks' documentation and indicated by the "+" mark in its top-side laser marking. It meets JEDEC J-STD-020C MSL 1 classification, supports Pb-free reflow profiles (peak 260 °C for 20–40 seconds), and passes MIL-STD-883F mechanical and environmental qualification tests including thermal shock, vibration, and moisture resistance.