Skip to main content
VCXO and Set-top Clock Source

Package Information

CAD Model:View CAD Model
Pkg. Type:QSOP
Pkg. Code:PCG28
Lead Count (#):28
Pkg. Dimensions (mm):9.9 x 3.8 x 1.47
Pitch (mm):0.64

Environmental & Export Classifications

Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090
Moisture Sensitivity Level (MSL)1

Product Attributes

Pkg. TypeQSOP
Lead Count (#)28
Pb (Lead) FreeYes
Carrier TypeTube
Accepts Spread Spec InputNo
Advanced FeaturesReference Output
Core Voltage (V)5
Input Freq (MHz)13.5 - 13.5
Length (mm)9.9
MOQ144
Moisture Sensitivity Level (MSL)1
Output Freq Range (MHz)8.19 - 50
Output TypeLVCMOS
Output Voltage (V)3.3
Outputs (#)8
Package Area (mm²)37.6
Pb Free Categorye3 Sn
Period Jitter Typ P-P (ps)300
Pitch (mm)0.64
Pkg. Dimensions (mm)9.9 x 3.8 x 1.47
PublishedNo
Qty. per Carrier (#)48
Qty. per Reel (#)0
Reference OutputYes
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Supply Voltage (V)5 - 5
Tape & ReelNo
Temp. Range (°C)0 to 70°C
Thickness (mm)1.47
Width (mm)3.8
Xtal Freq (KHz)13.5 - 13.5
Xtal Inputs (#)1

Description

The MK2771-16 is a low cost, low jitter, high-performance VCXO and clock synthesizer designed for set-top boxes. The on-chip Voltage Controlled Crystal Oscillator accepts a 0 to 3 V input voltage to cause the output clocks to vary by ±100 ppm. Using IDT 's patented VCXO and analog Phase-Locked Loop (PLL) techniques, the device uses an inexpensive 13.5 MHz crystal input to produce multiple output clocks including a selectable processor clock, a selectable audio clock, two communications clocks, a 13.5 MHz clock, and three 27 MHz clocks. All clocks are frequency locked to the 27 MHz output (and to each other) with zero ppm error, so any output can be used as the VCXO output.