Skyworks Solutions Inc. 516CHB001002AAG

Overview

516CHB001002AAG from Skyworks Solutions is a dual-frequency voltage-controlled crystal oscillator (VCXO) supporting 100 kHz to 250 MHz output range, factory-programmed for two discrete frequencies (156.25 MHz and 125 MHz), with CMOS output, 3.3 V supply, ±20 ppm temperature stability, and ±80 ppm absolute pull range. It serves as a low-jitter clock source in telecom line cards requiring frequency agility under control voltage modulation.

For engineers reviewing the 516CHB001002AAG datasheet, 516CHB001002AAG pinout, 516CHB001002AAG application, or 516CHB001002AAG equivalent, this page delivers verified electrical specs, package dimensions, dual-frequency switching behavior, CMOS drive capability (±8 mA at 3.3 V), and real-world jitter performance (0.25 ps RMS phase jitter, 1.875–20 MHz).

Technical Context

The 516CHB001002AAG implements an integrated PLL-based synthesizer using a fixed AT-cut fundamental-mode crystal, eliminating need for multiple crystals while delivering two user-selectable frequencies via the FS pin. Its architecture enables high reliability, low aging (±8.5 ppm over 10 years), and superior supply noise rejection (4.0 ps additive jitter at 100 kHz VDD noise).

It features 1% control voltage linearity across 0.1×VDD to 0.9×VDD, selectable Kv of 120 ppm/V, and supports fast frequency switching with ≤10 ms settling time after FS assertion. The device operates across –40 °C to +85 °C and is available in 5×7 mm, 3.2×5 mm, and 2.5×3.2 mm industry-standard packages.

Key Specifications

Pinout & Package

516CHB001002AAG is supplied in a RoHS-compliant, lead-free 5×7 mm, 6-pin surface-mount package (package code "A" per ordering guide). Pin layout follows standard CLCC footprint with exposed pad not present; land pattern per IPC-7351 with 2.54 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si516CHB001003AAG and Si516CHB001004AAG, the 516CHB001002AAG offers the widest absolute pull range (±80 ppm) and highest tuning slope (120 ppm/V), making it optimal for fast-locking, wide-range PLL designs in access network equipment.

Availability

516CHB001002AAG is available at Aetrix Electronics and suitable for telecom infrastructure, passive optical networks, and FPGA-based switching systems requiring stable component supply, short lead times, and factory-programmed dual-frequency agility.

Supply support for 516CHB001002AAG 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 Si516 product line was designed specifically for high-performance, programmable timing applications in telecom, datacom, and broadcast video systems - emphasizing low jitter, dual-frequency flexibility, and rapid customization.

FAQ

What are the two factory-programmed output frequencies of the 516CHB001002AAG?

The 516CHB001002AAG is factory-programmed for 156.25 MHz and 125 MHz outputs. These frequencies are selected via the FS pin: FS = 0 selects 156.25 MHz, and FS = 1 selects 125 MHz. Both frequencies are guaranteed across the full –40 °C to +85 °C operating range and meet ±20 ppm temperature stability.

Does the 516CHB001002AAG support differential output formats like LVDS or LVPECL?

No, the 516CHB001002AAG is configured for CMOS output only, as indicated by the "C" in the second option code of its part number. It provides a single-ended CMOS clock signal on pin 4 (CLK). For LVDS or LVPECL variants, refer to part numbers with option codes "B", "A", "D", etc., such as 516AHB001002AAG (LVPECL).

What is the absolute pull range and tuning slope (Kv) of the 516CHB001002AAG?

The 516CHB001002AAG has an absolute pull range (APR) of ±80 ppm and a tuning slope (Kv) of 120 ppm/V. This is confirmed by the third option code "B" in the part number, which maps to 120 ppm/V Kv and ±80 ppm APR for the 3.3 V supply variant per Skyworks' ordering guide.

How does the 516CHB001002AAG achieve low jitter despite being a VCXO?

The 516CHB001002AAG achieves 0.25 ps RMS phase jitter (1.875–20 MHz) through its integrated PLL architecture with a high-Q AT-cut fundamental crystal, proprietary noise-shaping synthesis, and 1% control voltage linearity. Unlike traditional VCXOs, it avoids crystal pulling nonlinearity and leverages digital calibration to suppress reference spurs and supply-induced jitter.

Is the 516CHB001002AAG pin-compatible with other Si516 variants in the same package?

Yes, all Si516 devices in the 5×7 mm package (code "A") share identical pinout and footprint, including 516CHB001002AAG. Pins 1–6 function identically across output formats (CMOS, LVDS, LVPECL, HCSL), though CMOS variants use pin 4 as CLK while differential variants use pins 4 and 5 as CLK+/CLK−.