SiTime, Silicon MEMS Oscillators and Clock Generators

SiT3807: High Performance, Standard Frequency MEMS VCXO

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The SiT3807 is a highly flexbile, high performance Voltage Controlled Oscillator (VCXO) with LVCMOS/LVTTL compatible output.  The device supports a set of standard frequencies along with any combination of voltage (1.8V, 2.5V to 3.3V), pull range (±25 PPM to ±200 PPM) and package (2520, 3225, 5032, 7050). It provides superior pull range linearity and tuning slope consistency (Kv), 10 times better than quartz crystal VCXOs, thereby simplifying PLL and clock synchronization design. The SiT3807 VCXO is 100% compatible with legacy quartz devices in footprint and control voltage and therefore replaces crystal VCXO oscillators without any design changes.

 

Nominal Frequencies (MHz)
  • 1.544
  • 4.096
  • 6.176
  • 8
  • 8.192
  • 10
  • 11.2896
  • 12.288
  • 12.352
  • 13.5
  • 16
  • 16.348
  • 16.8
  • 19.44
  • 20
  • 24.576
  • 24.7
  • 25
  • 25.576
  • 27
  • 30
  • 31.72
  • 32
  • 32.768
  • 35.328
  • 38.88
  • 39.322
  • 40
  • 44.736
  • 49.152
Frequency Stability (PPM) ±25, ±50
Pull Range (PPM) ±50, ±100, ±150, ±200
Pull Range Linearity
<1%
Control Voltage (V) 0 to VDD
Temp Range (°C) -20 to +70, -40 to +85
Supply Voltage (V) 1.8, 2.5 - 3.3
Package LxWxH (mm) 2.5x2.0x0.75 (4-pin), 3.2x2.5x0.75 (4-pin), 5.0x3.2x0.75 (6-pin), 7.0x5.0x0.9 (6-pin)
Status Production
Applications
  • Telecom equipment
  • Wireless basestations
  • Networking and communication electronics
  • Networked video systems and digitizers
  • Set-top boxes (STB)
  • Jitter clearner
  • Networked audio systems
  • Instrumentation
  • Low bandwidth analog phase locked loops (PLL)
  • FGPA data recovery

Features Benefits
  • Extensive programmability
    • Supply voltage of 1.8V, 2.5V to 3.3V
    • Frequency stability from ±25 PPM to ±50 PPM
    • Pull range from ±50 PPM to ±200 PPM
  • Customized specification for optimal system performance
  • Readily available products with any specification within operating range
  • <1% pull range linearity
  • Simpler loop control in software controlled PLL
  • More consistent PLL bandwidth over operating range
  • Faster calibration and lock time
  • Reduction of modulation harmonics
  • Superior tuning slope consistency
  • Tighter PLL bandwidth and simpler system desgin
  • Four industry standard package
  • 100% drop in replacement of quartz VCXO without any design changes
  • Ultra fast lead time (3-5 weeks)
    • Extensive list of commonly used VCXO frequencies
    • Any voltage
    • Any pull range
    • Any packaage
  • Reduce inventory overhead
  • Mitigate shortage risks

 
3807

Supported Frequencies

  • 1.544
  • 4.096
  • 6.176
  • 8
  • 8.192
  • 10
  • 11.2896
  • 12.288
  • 12.352
  • 13.5
  • 16
  • 16.348
  • 16.8
  • 19.44
  • 20
  • 24.576
  • 24.7
  • 25
  • 25.576
  • 27
  • 30
  • 31.72
  • 32
  • 32.768
  • 35.328
  • 38.88
  • 39.322
  • 40
  • 44.736
  • 49.152

 

APR Table

3807-apr

Note:
2. Absolute pull range (APR) = Nominal pull range (PR) - frequency stability (F_stab) - Aging (F_aging)

Ordering Codes for Supported Tape & Reel Packing Method

3807-oreringcodes

Note:
 “–” indicates “not available.”

1.8V LVCMOS IBIS iconSiT3807_1v8v
2.5V LVCMOS IBIS iconSiT3807_2v5v
2.8V LVCMOS IBIS iconSiT3807_2v8v
3.3V LVCMOS IBIS icon SiT3807_3v3v