Skyworks Solutions Inc. 534AB000535DG

Overview

534AB000535DG from Skyworks Solutions is a quad-output, factory-programmed crystal oscillator (XO) with DSPLL® frequency synthesis, delivering four selectable output frequencies between 10 MHz and 945 MHz (LVPECL/LVDS/CML) or up to 160 MHz (CMOS), ±20 ppm temperature stability, 3.3 V supply, and LVDS output format in an industry-standard 5 × 7 mm 8-pin package. It serves as a low-jitter clock source for FPGA/ASIC timing, SD/HD video systems, and network synchronization.

For engineers reviewing the 534AB000535DG datasheet, 534AB000535DG pinout, 534AB000535DG application, or 534AB000535DG equivalent, key selection criteria include its quad-frequency flexibility, sub-0.5 ps RMS phase jitter (12 kHz–20 MHz), LVDS output compatibility, ±20 ppm total stability over –40 °C to +85 °C, and factory-configured frequency set via FS[1:0] pins.

Technical Context

The 534AB000535DG implements Skyworks' third-generation DSPLL® architecture, synthesizing four precise output frequencies from a single internal fixed-frequency crystal-eliminating need for multiple crystals or external PLLs. Its digital-controlled loop provides superior supply noise rejection and eliminates analog VCO drift.

Frequency selection is controlled by two logic-level inputs (FS[1], FS[0]), each with internal 17 kΩ pull-up resistors to VDD, enabling dynamic switching among four pre-programmed frequencies within ≤20 ms settling time. Output enable (OE) supports tristate control with 60–75 mA standby current.

Key Specifications

Pinout & Package

534AB000535DG is housed in an industry-standard 5 × 7 mm, 8-pin surface-mount package with exposed pad (not electrically connected). Pin 1 is marked by a dot; pinout follows Skyworks' standardized layout for Si534 family XOs.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad-output XO applications.

Compared with 534AB000535DG, Si534AB000536DG trades wider temperature tolerance for improved initial accuracy, while Si534BB000535DG maintains identical frequency programming but changes electrical interface - neither is pin-compatible without layout revision due to differing output termination schemes.

Availability

534AB000535DG is available at Aetrix Electronics and suitable for SONET/SDH line cards, SD/HD video encoders, and industrial Ethernet switches requiring stable component supply, guaranteed long-term availability, and RoHS-compliant packaging.

Supply support for 534AB000535DG 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 power management technologies.

The Si534 product line delivers highly configurable, low-jitter clock generators and oscillators targeting communications infrastructure, enterprise networking, and broadcast video systems where precision timing and reliability are critical.

FAQ

What output frequencies are programmed in the 534AB000535DG?

The 534AB000535DG is factory-programmed with four specific frequencies determined by its six-digit frequency designator "000535". Per Skyworks' ordering convention, this code maps to a defined quad set - typically including values such as 125 MHz, 156.25 MHz, 312.5 MHz, and 625 MHz - all within the 10–945 MHz LVDS range and optimized for SONET/SDH and Ethernet applications. Exact frequencies are documented in the device-specific configuration report provided at shipment.

Does the 534AB000535DG require external configuration or programming after soldering?

No, the 534AB000535DG is fully factory-configured before shipment: its four output frequencies, LVDS output format, 3.3 V supply setting, ±20 ppm stability grade, and OE polarity are permanently programmed into on-chip nonvolatile memory. No external EEPROM, I²C interface, or ClockBuilder Pro software is needed - it operates immediately upon power-up with FS[1:0] pin control.

Can the 534AB000535DG be used with a 2.5 V supply?

No, the 534AB000535DG is specified exclusively for 3.3 V operation, as indicated by the "A" in its second option code position (per Skyworks' part numbering: "534 A B 000535 D G R"). Using 2.5 V would violate recommended operating conditions, risk improper DSPLL lock, and invalidate timing specifications - the correct 2.5 V variant would be designated with "E", "F", "G", or "H" in that position.

How does the 534AB000535DG achieve low phase jitter without an external loop filter?

The 534AB000535DG integrates Skyworks' third-generation DSPLL® circuitry, which performs all frequency synthesis digitally inside the IC using a high-stability internal crystal and sigma-delta modulation. This eliminates analog VCOs and external passive filters, removing major jitter sources like component tolerance drift and board-level noise coupling - resulting in 0.36 ps RMS phase jitter (125–500 MHz) without any external components.

Is the 534AB000535DG pin-compatible with other Si534 variants like the Si534BB000535DG?

Yes, all Si534 devices share identical 5 × 7 mm 8-pin mechanical footprint and pin assignments - including GND (Pin 3), VDD (Pin 6), CLK+ (Pin 4), CLK– (Pin 5), OE (Pin 2), FS[1] (Pin 7), FS[0] (Pin 8), and NC (Pin 1). However, electrical compatibility depends on output format: substituting LVDS (534AB000535DG) with LVPECL (534BB000535DG) requires changing termination networks and may affect signal integrity without layout review.