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CDCLVC1104PWR

1:4 LVCMOS clock buffer, 70fs additive jitter, <50ps skew, 250MHz, TSSOP-8

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Manufacturer Part：

CDCLVC1104PWR

Package：

TSSOP-8 (3.0 × 6.4 × 1.05 mm)

Brand：

Product Categories：

Integrated Circuits ICs, Interface ICs

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Description

Product Overview

The CDCLVC1104PWR is a low-jitter 1:4 LVCMOS fan-out clock buffer from Texas Instruments, packaged in an 8-pin TSSOP (PW) package. It provides four LVCMOS output copies of a single LVCMOS input with an additive jitter of only 70 fs typical and output skew of less than 50 ps. The device operates from 2.5V or 3.3V supplies and supports frequencies up to 250 MHz at 3.3V.

Key Specifications

Function	1:4 LVCMOS Fan-out Clock Buffer
Fan-out Ratio	1:4
Additive Jitter	70 fs (typical), < 100 fs
Output Skew	< 50 ps (pin-to-pin)
Supply Voltage	2.5V or 3.3V
Max Frequency	250 MHz (3.3V), 180 MHz (2.5V)
Input/Output	LVCMOS
Output Enable	Asynchronous (1G pin)
Package	TSSOP-8 (3.0 × 6.4 mm)
Operating Temperature	-40°C to +85°C

Features

Ultra-low additive jitter: 70 fs typical for minimal timing degradation
Low output skew: < 50 ps for tight clock alignment
Pin-compatible family from 1:2 to 1:12 fan-out configurations
Asynchronous output enable for flexible system control
Supports 2.5V and 3.3V supply voltages
Small 8-pin TSSOP package for space-constrained designs

Applications

Clock tree fan-out in communication systems
FPGA and processor clock distribution
ADC/DAC sample clock buffering
Industrial control system clock trees
Consumer electronics clock distribution

Product Introduction:CDCLVC1104PWR Product Introduction

The CDCLVC1104 is a low-jitter, high-fan-out LVCMOS clock buffer that produces four identical copies of a single LVCMOS input clock. With additive jitter of only 70 fs typical and output skew below 50 ps, it preserves the timing integrity of precision clock sources throughout the distribution network. The device is part of a pin-compatible family ranging from 1:2 to 1:12 fan-out configurations, allowing designers to scale clock distribution without board layout changes. The LMK1C1104 is a newer pin-compatible version that also supports 1.8V supply operation with even lower jitter performance.

Working Principle:CDCLVC1104PWR Working Principle

The CDCLVC1104 receives a single-ended LVCMOS clock input and distributes it to four identical LVCMOS output drivers through a carefully matched internal clock tree. The input buffer converts the LVCMOS signal to an internal logic level, which is then routed through symmetric metal traces to four output drivers. The matched trace lengths and balanced driver impedances ensure that all four outputs switch simultaneously within 50 ps of each other (output skew). The output enable (1G) pin provides asynchronous control to tri-state all outputs when de-asserted, allowing clock gating for power management. The low additive jitter is achieved through low-noise internal bias circuits and fast edge rates on the output drivers.

Pin Description:CDCLVC1104PWR Pin Definition and Functions

Pin	Name	Type	Function
1	1G	Input	Output enable — active high, asynchronous
2	1Y1	Output	Output 1 — LVCMOS clock copy
3	GND	Power	Ground
4	1Y2	Output	Output 2 — LVCMOS clock copy
5	1Y3	Output	Output 3 — LVCMOS clock copy
6	VDD	Power	Supply (2.5V or 3.3V)
7	1Y4	Output	Output 4 — LVCMOS clock copy
8	1A	Input	LVCMOS clock input

Application Scenarios:In which products and applications isCDCLVC1104PWR used

FPGA system clock fan-out to multiple peripherals and clock domains
High-speed ADC/DAC sample clock distribution to data converters
Processor and SoC reference clock buffering in server platforms
Industrial PLC clock tree distribution across multiple I/O modules
Video timing generator clock fan-out in broadcast equipment

Alternative Models:What chips are recommended as replacements for CDCLVC1104PWR

Manufacturer	Part Number	Package	Notes
TI	LMK1C1104PWR	TSSOP-8	Newer, 1.8/2.5/3.3V, lower jitter
TI	CDCLVC1106PWR	TSSOP-8	1:6 fan-out variant
Renesas	8SLVP1208	TSSOP-8	1:2 LVCMOS fan-out buffer
Microchip	SY89873U	SOIC-8	1:4 LVDS/CMOS fan-out
onsemi	MC100LVEP14	SOIC-8	1:4 PECL fan-out