Clock & Timing Products

HQC5027 (Crystal Oscillator Module IC)

• Wide range of supply voltage range: 1.8V to 5.0V (+/-10% margins) 
• Recommended Oscillation Frequency Range: 20 to 60MHz 
• Frequency Divider: f0, f0/2, f0/4, f0/8, f0/16, f0/32, f0/64
• As low as min. 0.9MHz output 
• -40 to 125oC operating temperature range 
• CMOS Output Level: 1/2VDD 
• 50+/5% Output Duty 
• 15pF Output Driving Capability 
• Standby Function
  • High Impedance in Standby Mode, Output CLK is at low state. 
• Device Form, Wafer Form
• Applications: SMD Crystal Oscillators

HQC5100 (VCXO Module IC)

• Low Phase Noise
  • Offset  Freq. (10KHz, 100KHz, 1MHz, 10MHz) = dBc/Hz (-152, -161, -162, -162)
• Operating Voltage and Current Consumption: 1.6V ~ 3.3V: 1.0mA (3.3V, 48Mhz)
• Wide Pulling Range: ±200ppm (min)
• Frequency Divider Built-in: fO, fO/2, fO/4, fO/8, fO/16
• VC Input Impedance of Leakage: 10MΩ
• CMOS Output Level: 1/2VDD
• Output Drive Capability: 10mA (3.3V)
• -40 to 125oC Operating Temperature Range
• 50+/5% Output Duty Cycle
• Standby Function (Output Enable)
• Device Form, Wafer Form
• Applications: VCXO Modules

HQC6101 (Frequency Synthesizer IC)

• Reference clock for PHYs or OTN (Optical Transport Network)
• Digitally controlled reference clock generation 
• Jitter performance less than 100fs (max) (10kHZ ~ 20MHz)
• Fractional-feedback analog PLL (25MHz ~ 80MHz XO Input)
• 4 differential (10MHz ~ 1GHz), 8 LVCMOS outputs (10MHz ~ 180MHz)
• Pre-determined OTP configurations are available
• 4x4mm, 24 QFN Package
• Applications: PHY, Switches, DCO, OTN, Fiber Optic Modules

HQC6302 (2.5/3.3V LVCMOS High Performance Clock Buffer)

• High-performance 1:2 LVCMOS clock buffer
• Very low pin-to-pin skew: < 50ps
• Very low additive jitter: < 50fs
• Supply voltage: 2.5V to 3.3V
• fmax = 180 MHz for 2.5 V
• fmax = 250 MHz for 3.3 V
• 8-pin TSSOP Packages
• Applications: General-purpose communications, Industrial, and Consumer electronics

HQC7301 (Synchronous Ethernet Jitter Cleaning IC)

• Frequency translation between SONET/PDH and Ethernet
• Two clock inputs and two clock outputs
• Input and Output frequency range: 8 kHz–644 MHz
• Ultra low jitter: 0.23 ps RMS (1.875–20 MHz)
• Programmable output clock signal: LVPECL, LVDS, CML or CMOS
• 40 MHz crystal or XO reference
• Supply voltage: 1.8, 2.5, or 3.3 V
• 6 x 6 mm, 36-QFN
• Applications: Synchronous Ethernet Line Cards, SONET Line Cards, PON.