Renesas ICS853L022AMLFT

Overview

ICS853L022AMLFT from Integrated Device Technology (IDT), formerly ICS, is a dual LVCMOS/LVTTL-to-differential 3.3V LVPECL clock translator with two differential LVPECL output pairs (Q0/nQ0, Q1/nQ1), 350MHz typical output frequency, 450ps typical propagation delay, and 0.03ps RMS additive phase jitter. It operates from 3.0V to 3.8V VCC with VEE = 0V and supports industrial temperature range (–40°C to +85°C) in an 8-pin TSSOP package.

For engineers reviewing the ICS853L022AMLFT datasheet, ICS853L022AMLFT pinout, ICS853L022AMLFT application, or ICS853L022AMLFT equivalent, key selection considerations include single-ended input compatibility with LVCMOS/LVTTL logic families, differential LVPECL output drive capability for high-speed clock distribution, low skew performance (≤400ps part-to-part), and thermal design support for multi-layer PCBs with θJA = 90.5°C/W at 1 m/s airflow.

Technical Context

The ICS853L022AMLFT implements a dual-channel translation architecture where each channel accepts a single-ended LVCMOS/LVTTL clock input (D0, D1) and generates a complementary LVPECL output pair (Q0/nQ0, Q1/nQ1). Its internal circuitry includes level-shifting buffers optimized for low-additive-jitter operation and matched delay paths to minimize inter-channel and part-to-part skew.

It supports two operating modes: LVPECL mode (VCC = 3.0–3.8V, VEE = 0V) and ECL mode (VCC = 0V, VEE = –3.8 to –3.0V), though the AMLFT suffix denotes the lead-free, RoHS-compliant 8-pin TSSOP (G package) variant rated for industrial temperature. Output termination requires external 50Ω transmission lines with DC-coupled biasing to VCC – 2V.

Key Specifications

Pinout & Package

ICS853L022AMLFT uses an 8-pin TSSOP (G package) with 0.65 mm pitch, 3 mm × 3 mm body, and exposed pad not electrically connected. Pin functions are validated per ICS853L022 datasheet Rev. A (October 2008).

Key Features

Applications

Equivalent & Alternatives

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

Compared with MC100LVELT22DG and NB3N551DR2G, the ICS853L022AMLFT offers superior high-frequency performance (350MHz vs. 250MHz), guaranteed low skew for multi-device synchronization, and a compact TSSOP package optimized for modern high-density PCBs-making it the preferred choice for new industrial and telecom clocking designs requiring LVPECL outputs.

Availability

ICS853L022AMLFT is available at Aetrix Electronics and suitable for high-speed serial interface clocking, FPGA/ASIC clock distribution, telecom line card timing, and industrial control synchronization requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for ICS853L022AMLFT 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

Integrated Device Technology (IDT) is a fabless semiconductor company specializing in timing, memory interface, RF, and sensor solutions, acquired by Renesas Electronics in 2019.

The ICS853L022AMLFT belongs to IDT's HiPerClockS™ family of high-performance clock translators, designed specifically for low-jitter, high-frequency clock distribution in networking, computing, and communications infrastructure.

FAQ

What is the maximum operating frequency supported by the ICS853L022AMLFT?

The ICS853L022AMLFT supports a typical output frequency of 350 MHz, as specified in the AC Characteristics table under "fMAX Output Frequency" with conditions VCC = 3.0V to 3.8V and VEE = 0V. This value is measured at the differential outputs (Q0/nQ0, Q1/nQ1) driving 50Ω loads with proper LVPECL termination. The device maintains specified timing parameters-including propagation delay and skew-up to this frequency.

Does the ICS853L022AMLFT require external termination resistors?

Yes, the ICS853L022AMLFT requires external termination for its LVPECL outputs. Each differential pair (Q0/nQ0 and Q1/nQ1) must be terminated to VCC – 2V using either two 50Ω resistors (one per output) or a Thevenin-equivalent network. This provides the necessary DC current path and establishes correct common-mode voltage (~VCC – 1.3V) and differential swing (~800 mV). Without proper termination, output logic levels and timing specifications will not meet datasheet guarantees.

Is the ICS853L022AMLFT pin-compatible with other devices in the same family?

Yes, the ICS853L022AMLFT is pin-compatible with the MC100LVELT22DG in 8-pin SOIC (M package) and shares identical pin functions and electrical behavior. Both devices use the same pin assignment: D0/D1 inputs, Q0/nQ0/Q1/nQ1 outputs, VCC, and VEE. However, the ICS853L022AMLFT uses the smaller 8-pin TSSOP (G package), so PCB layout must match the respective footprint-mechanical compatibility does not imply drop-in replacement without board revision.

What is the additive phase jitter performance of the ICS853L022AMLFT?

The ICS853L022AMLFT delivers 0.03 ps RMS additive phase jitter, measured per JEDEC Standard JESD65B methodology with a 12 kHz to 20 MHz integration bandwidth. This value reflects jitter introduced solely by the device-not including input clock jitter-and is critical for maintaining signal integrity in high-speed serial links. The low jitter stems from matched internal paths and optimized LVPECL driver design, enabling use in applications demanding tight BER requirements.

Can the ICS853L022AMLFT operate with a 2.5V supply?

No, the ICS853L022AMLFT is not rated for 2.5V operation. Its LVPECL mode requires VCC between 3.0V and 3.8V (with VEE = 0V), and its ECL mode requires VEE between –3.8V and –3.0V (with VCC = 0V). Operation outside these ranges violates Absolute Maximum Ratings and may cause functional failure or accelerated wear. For 2.5V systems, alternative translators such as IDT's 8T49N241 (LVDS) or ON Semi's NB3N3010B (LVCMOS-to-LVPECL with wider supply range) should be evaluated.