Skyworks Solutions Inc. 534AB000161DGR

Overview

534AB000161DGR 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 (including 125 MHz, 156.25 MHz, and 622.08 MHz per datasheet characterization), ±20 ppm temperature stability, LVDS output format, and 3.3 V supply. It serves as a low-jitter timing source in high-speed serial data interfaces requiring precise clock recovery.

For engineers reviewing the 534AB000161DGR datasheet, 534AB000161DGR pinout, 534AB000161DGR application, or 534AB000161DGR equivalent, this device supports frequency selection via FS[1:0], output enable control, and operates across –40 °C to +85 °C with industry-standard 5 × 7 mm package compatibility.

Technical Context

The 534AB000161DGR implements Skyworks' third-generation DSPLL® architecture, synthesizing output frequencies from a single internal fixed-frequency crystal resonator-eliminating need for multiple crystals or external VCXOs. Its all-digital PLL provides superior supply noise rejection and enables stable operation under noisy power conditions common in FPGA and networking platforms.

Frequency selection is controlled by two digital inputs (FS[1], FS[0]), each with internal 17 kΩ pull-up resistors to VDD, enabling four discrete output frequencies without reconfiguration. Output enable (OE) places CLK+/CLK– into high-impedance state, supporting dynamic clock gating in multi-clock domain systems.

Key Specifications

Pinout & Package

534AB000161DGR uses an 8-pin, 5 × 7 mm surface-mount package with exposed pad (not electrically connected). Pin 1 is marked by a dot; pins are arranged in two rows (1–4 top, 5–8 bottom) per top-view diagram.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si534AB000108DGR, 534AB000161DGR offers identical electrical and mechanical compatibility but distinct factory-programmed frequencies; versus Si535AB000161DG, it trades lower jitter and wider bandwidth for proven qualification in legacy telecom platforms and cost-sensitive volume production.

Availability

534AB000161DGR is available at Aetrix Electronics and suitable for SONET/SDH line cards, 10G/25G Ethernet switches, and FPGA-based video processing systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for 534AB000161DGR 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 Si534 product line delivers highly configurable, low-jitter clock generators for communications infrastructure, enterprise networking, and broadcast video systems where timing integrity directly impacts system throughput and reliability.

FAQ

What output frequencies are factory-programmed in the 534AB000161DGR?

The 534AB000161DGR is configured with four specific frequencies selected at manufacture: 125 MHz, 156.25 MHz, 622.08 MHz, and a fourth value determined by the six-digit code "000161" per Skyworks' ordering convention. These values are permanently stored and accessed via FS[1:0] control lines. The 534AB000161DGR does not support user reprogramming in-system.

Does the 534AB000161DGR support CMOS output format?

No, the 534AB000161DGR uses LVDS output format, indicated by the "B" in its part number (per Skyworks' ordering table: "A" = LVPECL, "B" = LVDS, "C" = CMOS). CMOS is only supported on variants with "C", "G", or "J" second-option codes and is limited to ≤160 MHz. The 534AB000161DGR's LVDS outputs operate up to 945 MHz with differential swing and common-mode voltage compliant to ANSI TIA/EIA-644-A.

How is frequency selection implemented on the 534AB000161DGR?

Frequency selection on the 534AB000161DGR is performed using two digital inputs: FS[1] (pin 7) and FS[0] (pin 8). These pins accept CMOS-level logic and include internal 17 kΩ pull-up resistors to VDD. The combination of FS[1:0] states (00, 01, 10, 11) selects one of four factory-programmed output frequencies. No external configuration device or I²C interface is required - all logic is handled internally by the DSPLL® core.

What is the power-up time specification for the 534AB000161DGR?

The 534AB000161DGR has a maximum power-up time (tOSC) of 10 ms - defined as the interval from VDD reaching 90% of final value to CLK+/CLK– reaching stable nominal frequency and amplitude. This parameter is guaranteed across –40 °C to +85 °C and applies whether exiting power-down or cold start. The 534AB000161DGR does not require external reset sequencing or initialization firmware.

Is the 534AB000161DGR pin-compatible with other Si534 variants?

Yes, all Si534 variants - including 534AB000161DGR - share identical 8-pin, 5 × 7 mm package dimensions, pin assignments, and thermal pad layout per Figure 2 and Table 11. Mechanical and solder-reflow compatibility is maintained across supply voltage (1.8 V/2.5 V/3.3 V), output format (LVDS/LVPECL/CML/CMOS), and stability grade (±7/±20/±50 ppm) variants. Electrical behavior differs only in output drive strength and voltage levels per selected option code.