Skip to main content
FemtoClock Crystal-to-LVCMOS/LVTTL Frequency Synthesizer

Package Information

CAD Model: View CAD Model
Pkg. Type: TSSOP
Pkg. Code: PGG20
Lead Count (#): 20
Pkg. Dimensions (mm): 6.5 x 4.4 x 1.0
Pitch (mm): 0.65

Environmental & Export Classifications

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

Product Attributes

Lead Count (#) 20
Carrier Type Tube
Moisture Sensitivity Level (MSL) 1
Qty. per Reel (#) 0
Qty. per Carrier (#) 74
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Temp. Range (°C) 0 to 70°C
Core Voltage (V) 3.3
Feedback Input No
Input Freq (MHz) 26.5625 - 26.5625
Input Type Crystal, LVCMOS
Inputs (#) 2
Length (mm) 6.5
MOQ 74
Output Banks (#) 1
Output Freq Range (MHz) 53.125 - 53.125, 106.25 - 106.25, 156.25 - 156.25, 159.375 - 159.375, 212.5 - 212.5
Output Skew (ps) 60
Output Type LVCMOS
Output Voltage (V) 2.5V, 3.3V
Outputs (#) 4
Package Area (mm²) 28.6
Phase Jitter Typ RMS (ps) 0.46
Pitch (mm) 0.65
Pkg. Dimensions (mm) 6.5 x 4.4 x 1.0
Pkg. Type TSSOP
Prog. Clock No
Published No
Reference Output No
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Spread Spectrum No
Tape & Reel No
Thickness (mm) 1
Width (mm) 4.4

Description

The 840004 is a 4-output LVCMOS/LVTTL synthesizer optimized to generate Ethernet reference clock frequencies. Using a 26.5625MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL1:0): 212.5MHz, 159.375MHz, 156.25MHz, 106.25MHz, and 53.125MHz. The 840004 uses our third generation low phase noise VCO technology and can achieve 1ps or lower typical random rms phase jitter, easily meeting Ethernet jitter requirements. The 840004 is packaged in a small 20-pin TSSOP package.