Document
Integrated Circuit Systems, Inc.
ICS83021I
1-TO-1 2.5V, 3.3V DIFFERENTIAL-TO-LVCMOS/LVTTL TRANSLATOR
FEATURES
• One LVCMOS / LVTTL output • Differential CLK, nCLK input pair • CLK, nCLK pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, HCSL, SSTL • Maximum output frequency: 350MHz (typical) • Part-to-part skew: 500ps (maximum) • Additive phase jitter, RMS: 0.21ps (typical), 3.3V output • Small 8 lead SOIC package saves board space • Full 3.3V, 2.5V operating supply • -40°C to 85°C ambient operating temperature • Available in both standard and lead-free RoHS-compliant packages
GENERAL DESCRIPTION
T h e I C S 8 3 021I i s a 1 - t o -1 Differential-toLVCMOS/LVTTL Translator and a member of HiPerClockS™ the HiPerClockS™ family of High Performance Clock Solutions from ICS. The differential input is highly flexible and can accept the following input types: LVPECL, LVDS, LVHSTL, SSTL, and HCSL. The small 8-lead SOIC footprint makes this device ideal for use in applications with limited board space.
IC S
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BLOCK DIAGRAM
CLK nCLK Q0
PIN ASSIGNMENT
nc CLK nCLK nc 1 2 3 4 8 7 6 5 VDD Q0 nc GND
ICS83021I
8-Lead SOIC 3.8mm x 4.8mm, x 1.47mm package body M Package Top View
83021AMI
www.icst.com/products/hiperclocks.html
1
REV. C DECEMBER 12, 2005
Integrated Circuit Systems, Inc.
ICS83021I
1-TO-1 2.5V 3.3V DIFFERENTIAL-TO-LVCMOS/LVTTL TRANSLATOR
Type Unused Input Input Power Output Power Pullup Description No connect. Pulldown Non-inver ting differential clock input. Inver ting differential clock input. Power supply ground. Single clock output. LVCMOS / LVTTL interface levels. Positive supply pin.
TABLE 1. PIN DESCRIPTIONS
Number 1, 4, 6 2 3 5 7
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Name nc CLK nCLK GN D Q0 VDD
NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.
TABLE 2. PIN CHARACTERISTICS
Symbol CIN CPD RPULLUP RPULLDOWN ROUT Parameter Input Capacitance Power Dissipation Capacitance (per output) Input Pullup Resistor Input Pulldown Resistor Output Impedance 5 Test Conditions Minimum Typical 4 VDD = 3.6V 23 51 51 7 12 Maximum Units pF pF kΩ kΩ Ω
83021AMI
www.icst.com/products/hiperclocks.html
2
REV. C DECEMBER 12, 2005
Integrated Circuit Systems, Inc.
ICS83021I
1-TO-1 2.5V, 3.3V DIFFERENTIAL-TO-LVCMOS/LVTTL TRANSLATOR
4.6V -0.5V to VDD + 0.5 V -0.5V to VDD + 0.5V 112.7°C/W (0 lfpm) -65°C to 150°C NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond those listed in the DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability.
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, VDD Inputs, VI Outputs, VO Package Thermal Impedance, θJA Storage Temperature, TSTG
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TABLE .