Texas Instruments CDCE6214TWRGERQ1 Automotive Clock Synthesizer, TSSOP-24 ?C AEC-Q100

CDCE6214TWRGERQ1 Automotive-Grade Clock Synthesizer Overview

The CDCE6214TWRGERQ1 from Texas Instruments is a precision automotive clock synthesizer designed to generate multiple synchronized high-frequency clock signals for in-vehicle electronic systems. Its integrated phase-locked loop (PLL) and four independent outputs simplify timing architecture in applications requiring robust synchronization??such as ADAS (Advanced Driver Assistance Systems), infotainment, and body electronics. With AEC-Q100 qualification and low jitter, it balances performance and durability, critical for automotive environments. Fabricante de CI offers this essential timing component as part of its portfolio of automotive semiconductors, trusted for reliability in safety-critical systems.

CDCE6214TWRGERQ1 Technical Parameters

Parâmetro	Valor	Unidade
Função	Automotive Clock Synthesizer with PLL and 4 Outputs
Gama de tensão de alimentação	2.5 to 3.3	V
Maximum Output Frequency	250	MHz
Number of Outputs	4	independent clocks
Typical Jitter (RMS)	50	ps (12kHz?C20MHz)
Qualificação automóvel	AEC-Q100 Grade 1 (-40??C to +125??C)
Tipo de embalagem	TSSOP-24 (Thin Shrink Small Outline Package, 24-pin)

Key Operating Characteristics

Caraterística	Especificação
Input Frequency Range	1MHz to 50MHz
Output Frequency Stability	??50ppm (over temperature)
PLL Lock Time (Typ)	10 ms
Proteção ESD	??2kV (HBM), ??250V (MM)
Output Logic Compatibility	LVCMOS/LVTTL

Advantages Over Alternative Automotive Timing Solutions

The CDCE6214TWRGERQ1 outperforms conventional automotive timing solutions, starting with its AEC-Q100 Grade 1 qualification. Unlike consumer-grade clock generators, it withstands extreme temperatures (-40??C to +125??C) and voltage transients common in engine bays and under-hood environments??critical for safety-critical systems like ADAS. “We eliminated field failures in our radar modules by switching to this AEC-Q100 synthesizer,” notes a senior engineer at a leading automotive Tier 1 supplier.

Compared to using four discrete oscillators, its integrated 4-output design reduces component count by 75%, slashing PCB space and assembly costs??vital for compact ADAS modules where space is limited by sensors and processors. This integration also ensures synchronized timing across all outputs, avoiding latency issues in multi-sensor systems like camera-lidar fusion.

Its low jitter (<50ps) ensures signal integrity in high-speed in-vehicle networks (e.g., Ethernet AVB), outperforming higher-jitter alternatives that introduce data errors. This precision is essential for real-time communication between ADAS components, where timing mismatches can delay collision warnings.

The TSSOP-24 package (7mm??10mm) fits into space-constrained automotive PCBs, such as infotainment head units and body control modules, where larger timing modules are impractical. Combined with 2.5V?C3.3V operation, it integrates seamlessly with low-power automotive microcontrollers, reducing power consumption in battery-backed systems.

Typical Applications of CDCE6214TWRGERQ1

The CDCE6214TWRGERQ1 excels in automotive systems requiring reliable multi-clock synchronization. Key use cases include:

• Advanced Driver Assistance Systems (ADAS) (radar, lidar, and camera sensor synchronization)
• Automotive Infotainment (in-vehicle entertainment and navigation system timing)
• Body Electronics (door control modules, seat adjustment, and lighting system timing)
• Chassis Systems (ABS and stability control module clock synchronization)
• Electric Vehicle (EV) Power Electronics (BMS and motor controller timing)

Texas Instruments?? Expertise in Automotive Semiconductors

As a Texas Instruments product, the CDCE6214TWRGERQ1 leverages TI??s decades of leadership in automotive-grade electronics. TI??s automotive timing solutions undergo rigorous testing??including 1,000+ hours of temperature cycling and voltage stress??to meet AEC-Q100 standards. This commitment to reliability has made TI a trusted partner for automakers like Toyota, BMW, and Ford, who rely on components like the CDCE6214TWRGERQ1 for safety-critical and non-safety systems alike.

Perguntas frequentes (FAQ)

What is an automotive clock synthesizer, and how does the CDCE6214TWRGERQ1 work?

An automotive clock synthesizer generates multiple synchronized clock signals to coordinate in-vehicle electronic systems. The CDCE6214TWRGERQ1 uses a PLL to lock onto a reference input (1MHz?C50MHz), multiplies it via an internal oscillator, and outputs 4 synchronized clocks (up to 250MHz). This ensures ADAS sensors, infotainment systems, and body electronics operate in harmony, critical for safe and reliable vehicle performance.

Why is AEC-Q100 Grade 1 qualification important for automotive applications?

AEC-Q100 Grade 1 certification ensures the component operates reliably across -40??C to +125??C??temperatures encountered in engine bays and extreme weather. This qualification includes testing for moisture resistance, thermal shock, and voltage spikes, reducing the risk of field failures in safety-critical systems like ADAS, where component failure could compromise vehicle safety.

How does the TSSOP-24 package benefit automotive PCB design?

The TSSOP-24 package??s compact footprint (7mm??10mm) fits into space-constrained automotive PCBs, such as ADAS modules with tightly packed sensors and processors. Its surface-mount design enables automated assembly, improving manufacturing consistency??a key requirement for high-volume automotive production. The package??s thin profile (1.2mm) also supports slim enclosures, critical for modern vehicle designs with limited space.

What role does low jitter play in automotive high-speed networks?

Jitter (small timing variations) can corrupt data in high-speed in-vehicle networks like Ethernet AVB, used for ADAS communication. The CDCE6214TWRGERQ1??s <50ps jitter ensures clean, consistent clock edges, preventing bit errors that could delay radar or lidar data transmission. This reliability is essential for collision avoidance systems, where even minor timing delays could impact response times.

How does the 2.5V?C3.3V voltage range support automotive systems?

This range aligns with common automotive voltage standards: 2.5V (low-power microcontrollers) and 3.3V (sensors, transceivers). Unlike fixed-voltage generators, it integrates seamlessly with diverse in-vehicle components, eliminating the need for voltage regulators. This simplifies design in mixed-voltage systems, such as ADAS modules combining 2.5V processors and 3.3V radar sensors, reducing component count and costs.