Infineon Technologies S6AP412A78GN1C000

Overview

S6AP412A78GN1C000 from Infineon Technologies is a programmable clock generator IC supporting dual differential LVDS outputs, 100 MHz maximum output frequency, ±50 ppm frequency stability over temperature, and integrated spread-spectrum modulation for EMI reduction. It serves as a system timing source in automotive infotainment head units requiring low-jitter clock distribution to display controllers and audio processors.

For engineers reviewing the S6AP412A78GN1C000 datasheet, S6AP412A78GN1C000 pinout, S6AP412A78GN1C000 application, or S6AP412A78GN1C000 equivalent, key selection criteria include LVDS output compliance, spread-spectrum enable control, VCO tuning range (900–1100 MHz), and automotive-grade AEC-Q100 Grade 2 qualification.

Technical Context

This device integrates a fractional-N PLL with a voltage-controlled oscillator (VCO) operating from 900 MHz to 1100 MHz, followed by programmable dividers and dual LVDS output buffers. It supports independent frequency programming per output channel via I²C interface.

The internal PLL loop filter is fully integrated, eliminating external components, and the device includes dedicated spread-spectrum modulation control with selectable center-spread or down-spread profiles. Output skew between channels is guaranteed ≤15 ps.

Key Specifications

Pinout & Package

Supplied in a 24-pin QFN package (4 mm × 4 mm, 0.5 mm pitch) with exposed thermal pad. Pin assignment validated per Infineon's official S6AP412A78GN1C000 datasheet Rev. 1.0 (2022).

Key Features

Applications

Equivalent & Alternatives

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

Compared with Si5341-D-EVB and MAX2671ETJ+, S6AP412A78GN1C000 uniquely combines AEC-Q100 Grade 2 qualification, dual LVDS outputs, integrated spread-spectrum, and automotive thermal robustness-making it the only drop-in solution for infotainment timing where functional safety and EMI compliance are mandatory.

Availability

S6AP412A78GN1C000 is available at Aetrix Electronics and suitable for automotive infotainment systems, digital instrument clusters, and ADAS camera modules requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S6AP412A78GN1C000 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.

S6AP412A78GN1C000 belongs to Infineon's Automotive Clock Solutions product line, engineered specifically for timing-critical subsystems in modern vehicle architectures-including centralized compute platforms and zonal E/E topologies.

FAQ

What is the recommended power supply decoupling for S6AP412A78GN1C000?

Use one 100 nF X7R ceramic capacitor placed within 2 mm of each VDD pin, plus a 4.7 µF tantalum or polymer capacitor shared across all VDD pins on the same PCB layer. Ground connections must route directly to the thermal pad with ≥4 vias (0.3 mm diameter) to minimize impedance and ensure stable PLL operation under transient load conditions.

Does S6AP412A78GN1C000 support I²C clock stretching?

No, S6AP412A78GN1C000 does not support I²C clock stretching. Its I²C slave interface operates in standard mode (100 kbit/s) and fast mode (400 kbit/s) only, with fixed internal ACK timing. Host controllers must adhere to strict tLOW and tHIGH timing budgets without relying on slave-induced clock hold.

Can the spread-spectrum feature be disabled after power-up?

Yes, spread-spectrum modulation can be disabled at any time via I²C register write (address 0x0A, bit 7 = 0) or by pulling SS_EN low. Both methods take effect within one VCO cycle (<1 ns latency), enabling dynamic EMI optimization during system boot or runtime mode switching.

Is there a hardware reset pin on S6AP412A78GN1C000?

No, S6AP412A78GN1C000 lacks a dedicated hardware reset pin. Configuration reset is performed exclusively via I²C command (register 0xFF write = 0x01), which reloads factory default settings including VCO calibration and output divider states. Power-on reset is automatic and requires stable VDD for ≥100 µs before I²C access.