GSV3 series 1.8, 2.5, 3.3 volt CMOS Oscillator

Transcription

1 GS3 series 1., 2.5, 3.3 volt CMOS Oscillator Features GS3 Crystal Oscillator Quick delivery CMOS output 3.2mm x 2.5mm x 1.2 mm Output frequencies to MHz Tristate output for board test and debug 55/125 or 0/5 C operating temperature Gold over nickel contact pads Hermetically sealed ceramic SMD package Product is compliant to RoHS directive and fully compatible with lead free assembly Output Buffer / Disable f o Applications SONET/SDH/DWDM Ethernet, Gigabit Ethernet Storage Area Network Digital ideo Broadband Access Microprocessors/DSP/FPGA Description GXL s GS3 Crystal Oscillator (XO) is quartz stabilized square wave generator with a CMOS output, operating from a 1., 2.5 or 3.3 volt supply. The GS3 utilized a high performance, low frequency quartz resonator followed by a custom ASIC to synthesize the output frequency.

2 GS3 Data Sheet Table 1. Electrical Performance, 3.3 option Parameter Symbol Min Typical Maximum Units Frequency f O MHz Operating Supply oltage 1 DD Absolute Maximum Operating oltage Supply Current, Output Enabled <30 MHz to 75 MHz to 133 MHz to 200 MHz I DD Supply Current, Output disabled I DD 30 ua Output Logic Levels Output Logic High 2 OH 0.9* DD Output Logic Low 2 OL 0.1* DD Output Logic High Drive Output Logic Low Drive Output Rise/Fall Time 2 t R/ t F 5 ns Duty Cycle 3 (ordering option) SYM 5/55 % Operating Temperature (ordering option) 55/125 or 0/5 C Storage Temperature C Stability (ordering option) ±25, ±50, ±100 ppm Output Enable/Disable 5 Output Enabled Output Disabled 0.5 Internal Enable PullUp resistor Kohm Startup time 10 ms 1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended. 2. Figure 1 defines these parameters. Figure 2 illustrates the operating conditions under which these parameters are tested and specified. For Fo>90MHz, rise and fall time is measured 20 to 0%. 3. Symmetry is measured defined as On Time/Period.. Includes calibration tolerance, operating temperature, supply voltage variations, aging and shock and vibration (not under operation). 5. Output will be enabled if enable/disable is left open t R t F IDD OH 50% OL On Time Period DD.1µF.01µF IC C pF Figure 1. Output Waveform Figure 2. Typical Output Test Conditions (25±5 C)

3 GS3 Data Sheet Table 2. Electrical Performance, 2.5 option Parameter Symbol Min Typical Maximum Units Frequency f O MHz Operating Supply oltage 1 DD Absolute Maximum oltage Supply Current, Output Enabled < 30 MHz to 75 MHz to 166 MHz I DD Supply Current, Out disabled I DD 30 ua Output Logic Levels Output Logic High 2 OH 0.9* DD Output Logic Low 2 OL 0.1* DD Output Logic High Drive Output Logic Low Drive Output Logic High Drive 3 Output Logic Low Drive 3 Output Rise/Fall Time 2 t R/ t F 5 ns Duty Cycle (ordering option) SYM 5/55 % Operating Temperature (ordering option) 55/125 or 0/5 C Storage Temperature C Stability 5 (ordering option) ±25, ±50, ±100 ppm Output Enable/Disable 6 Output Enabled Output Disabled 0.5 Internal Enable PullUp resistor Kohm Startup time 10 ms 1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended. 2. Figure 3 defines these parameters. Figure illustrates the operating conditions under which these parameters are tested and specified. 3. Overtone designs, output frequencies>35mhz.. Symmetry is measured defined as On Time/Period. 5. Includes calibration tolerance, operating temperature, supply voltage variations, aging and shock and vibration (not under operation). 6. Output will be enabled if enable/disable is left open t R t F IDD 0% s 20% On Time DD.1µF.01µF IC C pF Period Figure 3. Output Waveform Figure. Typical Output Test Conditions (25±5 C)

4 GS3 Data Sheet Table 3. Electrical Performance, 1. option Parameter Symbol Min Typical Maximum Units Frequency f O MHz Operating Supply oltage 1 DD Absolute Maximum oltage Supply Current, Output Enabled < 30 MHz to 75 MHz to 133 MHz I DD Supply Current, Out disabled I DD 30 ua Output Logic Levels Output Logic High 2 OH 0.9* DD Output Logic Low 2 OL 0.1* DD Output Logic High Drive Output Logic Low Drive Output Logic High Drive 3 Output Logic Low Drive Output Rise/Fall Time 2 t R/ t F 5 ns Duty Cycle (ordering option) SYM 5/55 % Operating temperature (ordering option) 55/125 or 0/5 C Storage Temperature C Stability 5 (ordering option) ±25, ±50, ±100 ppm Output Enable/Disable 6 Output Enabled Output Disabled 0.5 Internal Enable PullUp resistor 6 1 Mohm Startup time 10 ms 1. A 0.01uF and a 0.1uF capacitor should be located as close to the supply as possible (to ground) is recommended. 2. Figure 5 defines these parameters. Figure 6 illustrates the operating conditions under which parameters are tested/specified. 3. Overtone designs, output frequencies>35mhz.. Symmetry is measured defined as On Time/Period. 5. Includes calibration tolerance, operating temperature, supply voltage variations, aging and shock and vibration (not under operation). 6. Output will be enabled if enable/disable is left open t R t F 0% s 20% On Time C Period DD IDD.1µF.01µF IC pF Figure 5. Output Waveform Figure 6. Typical Output Test Conditions (25±5 C)

5 GS3 Data Sheet Enable/Disable Functional Description Under normal operation the Enable/Disable is left open or set to a logic high state. When the E/D is set to a logic low, the oscillator stops and the output is in a high impedance state. This helps reduce power consumption as well as facilitating board testing and troubleshooting. Tristate Functional Description Under normal operation the tristate is left open or set to a logic high state. When the tristate is set to a logic low, the oscillator remains active but the output buffer is in a high impedance state. This helps facilitate board testing and troubleshooting. Table. Outline Diagrams, Pad Layout and Pin Out Pin # Symbol Function 1 E/D or NC Tristate, Enable/Disable or NC 2 GND Electrical and Case Ground 3 f O Output Frequency DD Supply oltage GXL Contact Pads are gold over nickel Figure 9, Package drawing

6 GS3 Data Sheet Reliability The GS3 qualification tests have included: Table 5. Environnemental Compliance Parameter Conditions Mechanical Shock MILSTD3 Method 2022 Mechanical ibration MILSTD3 Method 2007 Temperature Cycle MILSTD3 Method 1010 Solderability MILSTD3 Method 2003 Gross and Fine Leak MILSTD3 Method 101 Resistance to Solvents MILSTD3 Method 2015 MSL 1 Ordering Information Product Family Crystal Oscillator GS3 33 M 125M00 Output Frequency In MHZ oltage Options 33: 3.3 dc /10%, 15pF 25: 2.5 dc /10%, 15pF 1: 1. dc /10%, 15pF Stability Options F: ±50ppm, 0 to 5 C H: ±50ppm, 55 to 5 C (BurnIn,MILSTD 3 Method1015,Operating 5C) M: ±100 ppm, 55 to 125 C (BurnIn,MILSTD 3 Method1015,Operating 125C) Q: ±100 ppm, 55 to 125 C (MILPRF Compliant) : ±100 ppm, 55 to 125 C (Qualified to 100 krad)