Skip to main content
Low Skew,1-to-12 Differential-to-LVCMOS/LVTTL Fanout Buffer

Package Information

CAD Model: View CAD Model
Pkg. Type: TQFP
Pkg. Code: PRG32
Lead Count (#): 32
Pkg. Dimensions (mm): 7.0 x 7.0 x 1.4
Pitch (mm): 0.8

Environmental & Export Classifications

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

Product Attributes

Lead Count (#) 32
Carrier Type Reel
Moisture Sensitivity Level (MSL) 3
Input Type LVPECL, LVDS, HSTL, SSTL, HCSL, LVCMOS
Output Voltage (V) 3.3V, 2.5V
Qty. per Reel (#) 2000
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 (ps) 0.14
Input Freq (MHz) 350
Inputs (#) 2
Length (mm) 7
MOQ 2000
Output Banks (#) 1
Output Freq Range (MHz) 350
Output Signaling LVCMOS
Output Skew (ps) 100
Output Type LVCMOS
Outputs (#) 12
Package Area (mm²) 49
Pitch (mm) 0.8
Pkg. Dimensions (mm) 7.0 x 7.0 x 1.4
Pkg. Type TQFP
Published No
Reel Size (in) 13
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Tape & Reel Yes
Thickness (mm) 1.4
Width (mm) 7

Description

The 83948I-147 is a low skew, 1-to-12 Differential-to-LVCMOS/LVTTL Fanout Buffer. The 83948I-147 has two selectable clock inputs. The CLK, nCLK pair can accept most standard differential input levels. The LVCMOS_CLK can accept LVCMOS or LVTTL input levels. The low impedance LVCMOS/LVTTL outputs are designed to drive 50Ω series or parallel terminated transmission lines. The effective fanout can be increased from 12 to 24 by utilizing the ability of the outputs to drive two series terminated lines. The 83948I-147 is characterized at full 3.3V, full 2.5V or mixed 3.3V core/2.5V output operating supply modes. Guaranteed output and part-to-part skew characteristics make the 83948I-147 ideal for those clock distribution applications demanding well defined performance and repeatability.