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Zero Delay, Differential-to-LVCMOS/LVTTL Clock Generator

Package Information

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

Environmental & Export Classifications

Moisture Sensitivity Level (MSL) 3
Pb (Lead) Free Yes
ECCN (US) NLR
HTS (US) 8542390001

Product Attributes

Lead Count (#) 32
Carrier Type Tray
Moisture Sensitivity Level (MSL) 3
Qty. per Reel (#) 0
Qty. per Carrier (#) 250
Pb (Lead) Free Yes
Pb Free Category e3 Sn
Temp. Range -40 to +85°C
Advanced Features Feedback Input
C-C Jitter Max P-P (ps) 45
Core Voltage (V) 2.5, 3.3
Feedback Input Yes
Input Freq (MHz) 15.625 - 250
Input Type HCSL, HSTL, LVCMOS, LVDS, LVPECL, SSTL
Inputs (#) 2
Length (mm) 7
MOQ 2000
Output Banks (#) 1
Output Freq Range (MHz) 15.625 - 250
Output Skew (ps) 55
Output Type LVCMOS
Output Voltage (V) 2.5, 3.3
Outputs (#) 8
Package Area (mm²) 49.0
Phase Jitter Max RMS (ps) 50.000
Pitch (mm) 0.8
Pkg. Dimensions (mm) 7.0 x 7.0 x 1.4
Pkg. Type TQFP
Prog. Clock No
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Tape & Reel No
Thickness (mm) 1.4
Width (mm) 7

Description

The 8705I is a highly versatile 1:8 Differential-to- LVCMOS/LVTTL Clock Generator. The 8705I has two selectable clock inputs. The CLK1, nCLK1 pair can accept most standard differential input levels. The single ended CLK0 input accepts LVCMOS or LVTTL input levels. The 8705I has a fully integrated PLL and can be configured as zero delay buffer, multiplier or divider and has an input and output frequency range of 15.625MHz to 250MHz. The reference divider, feedback divider and output divider are each programmable, thereby allowing for the following output-to-input frequency ratios: 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, 1:8. The external feedback allows the device to achieve "zero delay" between the input clock and the output clocks. The PLL_SEL pin can be used to bypass the PLL for system test and debug purposes. In bypass mode, the reference clock is routed around the PLL and into the internal output dividers.