IDT, Integrated Device Technology Inc 84321AYILFT

Description
The 843211 is a dual output Crystal-to-3.3V Differential LVPECL High Frequency Synthesizer. It has a selectable TEST_CLK or crystal inputs. The VCO operates at a frequency range of 620MHz to 780MHz. The VCO frequency is programmed in steps equal to the value of the input reference or crystal frequency. The VCO and output frequency can be programmed using the serial or parallel interfaces to the configuration logic. The low phase noise characteristics of the 843211 make it an ideal clock source for Fibre Channel 1, Fibre Channel 2, 10 Gigabit Fibre Channel, Gigabit Ethernet, and 10 Gigabit Ethernet applications.

Features
Dual differential 3.3V LVPECL outputs
Selectable crystal oscillator interface or LVCMOS/LVTTL TEST_CLK
Output frequency range: 103.3MHz to 260MHz
Crystal input frequency range: 14MHz to 40MHz
VCO range: 620MHz to 780MHz
Parallel or serial interface for programming counter and output dividers
RMS period jitter: 3ps (typical)
RMS phase jitter at 155.52MHz, using a 38.88MHz crystal (12kHz to 20MHz): 2.5ps (typical)
Phase noise: 155.52MHz
Offset Noise Power
100Hz: -84.1 dBc/Hz
1kHz: -109.8 dBc/Hz
10kHz: -126.3 dBc/Hz
100kHz: -128.7 dBc/Hz
3.3V supply voltage
-40°C to 85°C ambient operating temperature
Available in lead-free (RoHS 6) package
For functional replacement part use 8T49N241

Applications
Fibre Channel 1
Fibre Channel 2
10 Gigabit Fibre Channel
Gigabit Ethernet
10 Gigabit Ethernet