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ACS8522T The Semtech ACS8522T is a SETS Lite synchronous equipment timing source for SONET/SDH Stratum 3/4E/4 and SMC systems. It accepts up to four input reference clocks and generates six output clocks with a maximum frequency of 311.04 MHz.
Mfr Part #:

ACS8522T

Available from 3 distributors
Mfr Name: Semtech
Semtech
The Semtech ACS8522T is a SETS Lite synchronous equipment timing source for SONET/SDH Stratum 3/4E/4 and SMC systems. It accepts up to four input reference clocks and generates six output clocks with a maximum frequency of 311.04 MHz.
✓ Total Stock: 266 pcs

ACS8522T Available from 3 distributors

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Rayichip ✓
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160 pcs
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160 pcs On Request 1 On Request On Request On Request On Request On Request
Braun Electronic Components ✓
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53 pcs
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53 pcs On Request 1 On Request On Request On Request On Request On Request
RAD ✓
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53 pcs
On Request
53 pcs On Request 1 On Request On Request On Request On Request On Request
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ACS8522T Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Differential
Frequency
Input
Main Purpose
Mounting Type
Number of Circuits
Operating Temperature
Output
PLL
Ratio
Supplier Device Package
Voltage
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ACS8522T Description

Short technical summary and product information.

The Semtech ACS8522T is a highly integrated single-chip Synchronous Equipment Timing Source (SETS) designed for SONET and SDH network elements. It supports Stratum 3, 4E, 4, and SONET Minimum Clock (SMC) applications, fully compliant with Telcordia and ITU-T standards.

 

The device accepts up to four independent input reference clocks from recovered line clock, PDH network, or node synchronization sources. It generates four output clocks plus two sync pulse outputs, with a maximum output frequency of 311.04 MHz. The ACS8522T features a programmable PLL bandwidth from 0.1 Hz to 70 Hz for wander and jitter attenuation, and provides holdover accuracy better than 3 × 10^-10 in manual mode.

 

The IC operates from a 3V to 3.6V supply and is specified over -40°C to 85°C. It is housed in a 64-LQFP (10x10 mm) surface-mount package and includes IEEE 1149.1 JTAG boundary scan support. The device supports Free-run, Locked, and Holdover modes with automatic or register-controlled selection.

ACS8522T Quick Information

Product Type: Application Specific Clock/Timing IC
Canonical Name: Semtech ACS8522T SETS Lite Synchronous Equipment Timing Source
Subcategory: SONET/SDH Timing IC

ACS8522T Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead-free version

ACS8522T Features

  • PLL with programmable bandwidth 0.1 Hz to 70 Hz.
  • Accepts up to four independent input reference clocks.
  • Generates six output clocks up to 311.04 MHz.
  • Holdover accuracy better than 3 × 10^-10 manual mode.
  • IEEE 1149.1 JTAG boundary scan support.

ACS8522T Applications

  • SONET/SDH equipment clock generation (SEC).
  • Stratum 3, 4E, and 4 timing applications.
  • Synchronous Equipment Timing Source (SETS) for network elements.
  • BITS clock generation and frame synchronization.

ACS8522T FAQs

7 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the ACS8522T?

The ACS8522T operates from 3V to 3.6V, with 5V tolerant inputs per the datasheet.

What package is the ACS8522T available in?

The ACS8522T is available in a 64-LQFP (10x10 mm) surface-mount package.

What is the operating temperature range of the ACS8522T?

The ACS8522T operates over -40°C to 85°C.

Is the ACS8522T RoHS compliant?

The ACS8522T is listed as RoHS3 Compliant, though this is unverified and should be confirmed with the manufacturer.

How many input reference clocks does the ACS8522T support?

The ACS8522T accepts up to four independent input reference clocks.

What is the maximum output frequency of the ACS8522T?

The maximum output frequency is 311.04 MHz.

Does the ACS8522T support JTAG boundary scan?

Yes, the ACS8522T supports IEEE 1149.1 JTAG boundary scan.

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