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1:2 Clock Fanout Buffer and Frequency Divider

Package Information

Pkg. Type: VFQFPN
Pkg. Code: NLG16
Lead Count (#): 16
Pkg. Dimensions (mm): 3.0 x 3.0 x 1.0
Pitch (mm): 0.5

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090

Product Attributes

Lead Count (#) 16
Carrier Type Reel
Moisture Sensitivity Level (MSL) 3
Qty. per Reel (#) 2500
Qty. per Carrier (#) 0
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Temp. Range (°C) -40 to 85°C
Additive Phase Jitter Typ RMS (fs) 57
Additive Phase Jitter Typ RMS (ps) 0.057
Adjustable Phase No
Advanced Features Per-bank divider
Channels (#) 1
Core Voltage (V) 2.5, 3.3
Divider Value 1, 2, 4, 8
Function Buffer, Divider
Input Freq (MHz) -
Input Type LVPECL, LVDS, CML
Inputs (#) 1
Length (mm) 3
MOQ 2500
Noise Floor (dBc/Hz) -154
Output Banks (#) 2
Output Freq Range (MHz) - , -
Output Type LVPECL, LVCMOS
Output Voltage (V) 2.5, 3.3
Outputs (#) 2
Package Area (mm²) 9
Pitch (mm) 0.5
Pkg. Dimensions (mm) 3.0 x 3.0 x 1.0
Pkg. Type VFQFPN
Published No
Reel Size (in) 13
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Supply Voltage (V) - , -
Tape & Reel Yes
Thickness (mm) 1
Width (mm) 3

Description

The 8T73S1802 is a fully integrated clock fanout buffer and frequency divider. The input signal is frequency-divided and then fanned out to one differential LVPECL and one LVCMOS output. Each of the outputs can select its individual divider value from the range of ÷1, ÷2, ÷4 and ÷8. Three control inputs EN, SEL0, and SEL1 (3-level logic) are available to select the frequency dividers and the output enable/disable state. The single-ended LVCMOS output is phase-delayed by 650ps to minimize coupling of LVCMOS switching into the differential output during its signal transition.

The 8T73S1802 is optimized to deliver very low phase noise clocks. The VBB output generates a common-mode voltage reference for the differential clock input so that connecting the VBB pin to an unused input (nCLK) enables to use of single-ended input signals. The extended temperature range supports wireless infrastructure, telecommunication, and networking end equipment requirements. The 8T73S1802 can be used with a 3.3V or a 2.5V power supply.