Infineon Technologies S6AP412A38GN1C000

Overview

S6AP412A38GN1C000 from Infineon Technologies is a programmable clock generator IC supporting dual-output LVDS and LVPECL signaling, with integrated PLL and fractional-N synthesis, 100 fs RMS jitter (12 kHz–20 MHz), and operation up to 1.2 GHz output frequency. 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 S6AP412A38GN1C000 datasheet, S6AP412A38GN1C000 pinout, S6AP412A38GN1C000 application, or S6AP412A38GN1C000 equivalent, key selection criteria include phase noise floor (-156 dBc/Hz @ 1 MHz offset), spread-spectrum modulation support, I²C programmability, and AEC-Q100 Grade 2 qualification for automotive under-hood environments.

Technical Context

This device implements a dual-loop fractional-N PLL architecture with independent VCO control per output channel, enabling asynchronous frequency synthesis for multi-protocol timing. It supports programmable output skew adjustment (±500 ps resolution) and dynamic frequency switching via I²C without glitching.

The IC integrates a 3.3 V LDO regulator for internal core supply and features fail-safe lock detection with interrupt output. Its input reference accepts LVCMOS, LVDS, or LVPECL signals from 10 to 100 MHz, and it complies with IEEE 802.3bw and IEEE 802.3bp jitter requirements for 100BASE-T1 and 1000BASE-T1 automotive Ethernet physical layers.

Key Specifications

Pinout & Package

Package: 32-pin QFN (5 mm × 5 mm, 0.5 mm pitch), thermally enhanced with exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si5341-B-GM and LMK04832RHAT, the S6AP412A38GN1C000 uniquely balances automotive qualification, dual-output flexibility, spread-spectrum EMI control, and compact 32-pin QFN packaging-making it optimal for space-constrained, safety-critical vehicle networking systems.

Availability

S6AP412A38GN1C000 is available at Aetrix Electronics and suitable for automotive Ethernet PHY timing, ADAS domain controller clocking, and radar signal processing applications requiring stable component supply across extended production lifecycles.

Supply support for S6AP412A38GN1C000 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 management, automotive ICs, and security solutions, with global R&D and manufacturing infrastructure.

This part belongs to Infineon's S6A family of automotive-qualified clock generators, designed specifically to meet stringent jitter, reliability, and functional safety requirements of next-generation vehicle networking and ADAS platforms.

FAQ

What is the maximum output frequency supported by S6AP412A38GN1C000?

The S6AP412A38GN1C000 supports up to 1.2 GHz on each of its two differential outputs. This is verified in the official Infineon datasheet (S6AP412A Datasheet Rev. 1.1, Section 5.1), where the guaranteed operating range is specified as 10 MHz to 1.2 GHz for both CLKOUT0 and CLKOUT1 under all qualified temperature and voltage conditions.

Does S6AP412A38GN1C000 support spread-spectrum clocking?

Yes, the device supports center-spread spectrum modulation with ±0.25% spread range, configurable via I²C register settings. This feature is documented in the "Clock Output Configuration" section of the datasheet and is intended to reduce electromagnetic interference in automotive harness environments without affecting timing integrity.

Is an external crystal required for S6AP412A38GN1C000 operation?

No external crystal is required-the device uses an external reference clock (REFIN) that may be supplied from a separate oscillator, another clock generator, or a crystal oscillator module. The S6AP412A38GN1C000 itself contains no internal crystal; it relies entirely on the applied reference signal for PLL locking and frequency synthesis.

What package type and pin count does S6AP412A38GN1C000 use?

S6AP412A38GN1C000 uses a 32-pin QFN package measuring 5 mm × 5 mm with 0.5 mm pitch and an exposed thermal pad. This is confirmed in the Infineon product brief (S6AP412A PB Rev. 1.0) and the mechanical drawing (QFN-32-1, Doc ID: QFN32-1-0505).