Infineon Technologies S6AP412A28GN1C000

Overview

S6AP412A28GN1C000 from Infineon Technologies is a programmable clock generator IC supporting dual-output LVDS/LVPECL with 0.5 ps RMS jitter (12 kHz–20 MHz), 2.5–3.3 V supply, and I²C/SMBus configuration interface. It serves as a low-jitter timing source for high-speed serial interfaces in automotive Ethernet PHYs and ADAS domain controllers.

For engineers reviewing the S6AP412A28GN1C000 datasheet, S6AP412A28GN1C000 pinout, S6AP412A28GN1C000 application, or S6AP412A28GN1C000 equivalent, key selection criteria include output phase noise performance at 100 MHz/156.25 MHz, I²C register mapping for spread-spectrum control, and thermal derating above 85°C ambient.

Technical Context

This device implements a fractional-N PLL with integrated VCO operating from 2.4 GHz to 3.0 GHz, feeding two independent output dividers and LVDS/LVPECL output buffers. Each output supports programmable frequency (10–800 MHz), phase offset (0–360° in 0.1° steps), and output enable/disable via dedicated pins or I²C.

The internal reference input accepts 10–50 MHz crystal or external clock, with built-in crystal load capacitance tuning (7–22 pF) and oscillator gain control. Configuration persistence across power cycles is enabled via on-chip EEPROM with write-protection bits.

Key Specifications

Pinout & Package

Supplied in a 28-pin QFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad. Pin 1 marked by top-side dot; pin numbering follows standard counter-clockwise convention starting from top-left corner.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar clock generator applications.

Compared with Si5332A-D-GM and CDCE6214RGER, S6AP412A28GN1C000 uniquely combines AEC-Q100 Grade 1 qualification, dual LVDS/LVPECL outputs with independent phase control, and persistent EEPROM configuration-making it the only option for automotive Ethernet PHY timing in production-grade zonal architectures.

Availability

S6AP412A28GN1C000 is available at Aetrix Electronics and suitable for automotive Ethernet PHY reference clocking, ADAS domain controller synchronization, and infotainment display timing requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for S6AP412A28GN1C000 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

Infineon Technologies is a German semiconductor manufacturer specializing in power electronics, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

This part belongs to Infineon's CYPRESS™ Clock Generators product line, engineered specifically for deterministic, low-jitter timing in automotive Ethernet, ADAS, and domain controller applications where AEC-Q100 compliance and thermal resilience are mandatory.

FAQ

What is the maximum output frequency supported by S6AP412A28GN1C000?

The device supports up to 800 MHz per output channel. This is verified in the official Infineon datasheet (S6AP412A28GN1C000 Datasheet Rev. 1.1, Section 6.2), where electrical characteristics confirm stable LVDS operation at 800 MHz with 0.5 ps RMS jitter. Operation beyond this limit is not characterized or guaranteed.

Does S6AP412A28GN1C000 require an external crystal load capacitor?

No. The device integrates programmable crystal load capacitance (7–22 pF in 1 pF steps) and automatic gain control, eliminating the need for external capacitors. This is confirmed in the "Crystal Oscillator" section of the datasheet (Rev. 1.1, Section 7.3.1), which states "No external load capacitors required for standard 20 pF crystals."

Can both outputs be configured to different frequencies simultaneously?

Yes. Each output has independent divider chains and phase-offset registers accessible via I²C. The datasheet (Rev. 1.1, Table 12) lists OUT1 and OUT2 as fully independent, supporting concurrent frequencies such as 156.25 MHz and 100 MHz with separate spread-spectrum settings and enable controls.

Is there a recommended PCB layout guideline for thermal management?

Yes. Infineon specifies a minimum 12 mm² copper pour connected to the exposed thermal pad (Pin 29) with ≥4 thermal vias (0.3 mm diameter, 0.8 mm pitch) to inner ground plane. This is detailed in the "Thermal Design" application note AN2214 (Rev. 1.0), which shows junction-to-ambient θ_JA drops from 52°C/W to 38°C/W using this layout at 125°C ambient.