ICS8432-11

Features:

• Dual differential 3.3V LVPECL outputs
• Selectable crystal oscillator interface or LVCMOS/LVTTL TEST_CLK
• TEST_CLK can accept the following input levels: LVCMOS or LVTTL
• Maximum FOUT frequency: 700MHz
• Maximum FOUT/2 frequency: 350MHz
• VCO range: 200MHz to 700MHz
• Parallel interface for programming counter and VCO frequency multiplier and dividers
• Cycle-to-cycle jitter: 25ps (maximum)
• RMS period jitter: TBD
• 3.3V supply voltage
• 0°C to 70°C ambient operating temperature


Pinout




Specifications

Supply Voltage, V_CC 4.6V
Inputs, V_I -0.5V to V_CC + 0.5 V
Outputs, I_O
Continuous Current 50mA
Surge Current 100mA
Package Thermal Impedance, _JA 47.9°C/W (0 lfpm)
Storage Temperature, T_STG -65°C to 150°C


Description

The ICS8432-11 is a general purpose, dual output Crystal-to-3.3V Differential LVPECL High Frequency Synthesizer and a member of the HiPerClockS™ family of High Performance Clock Solutions from ICS. The ICS8432-11 has a selectable TEST_CLKor crystal inputs. The TEST_CLK input accepts LVCMOS or LVTTL input levels and translates them to 3.3V LVPECL levels. The VCO operates at a frequency range of 200MHz to 700MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. Output frequencies up to 700MHz for FOUT and 350MHz for FOUT/2 can be programmed using the serial or parallel interfaces to the configuration logic. The low phase noise characteristics and the multiple frequency outputs of the ICS8432-11 makes it an ideal clock source for Fiber Channel 1 and 2, and Infiniband applications.