P521-23 Low Phase Noise PECL VCXO (100MHz to 200MHz) PAD ASSIGNMENT AND DESCRIPTION Pin # Name 1 OSCOFFSEL 2 GNDOSC 3 VCON 4 XIN Description Oscillator Off Selection input pad. When low, turns off the oscillator when output is disabled. When high (default), oscillator running when output is disabled. Internal pull-up GND connection for oscillator circuitry. Control Voltage input. Use this pin to change the output frequency by varying the applied Control Voltage. Crystal oscillator input pin. 5 XOUT 6 OECTRL 7 DNC Do Not Connect. 8 GND Ground connection. 9 GND Ground connection. 10 Q 11 QBAR 12 VDDBUF 13 VDDANA 14 OESEL 15 BUFZSEL 16 VDDOSC Crystal oscillator output pin. OE input pad. See table on page 1. PECL Output. PECL complementary output. VDD connection for output buffer circuitry. VDDBUF should be separately decoupled from other VDDs whenever possible. VDD connection for analog circuitry. VDDANA should be separately decoupled from other VDDs whenever possible. Selector input to choose the OE control logic. See table on page 1. Output impedance selector VDD connection for oscillator circuitry. VDDOSC should be separately decoupled from other VDDs whenever possible. 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 [www.phaselink.com] Rev 7/28/04 Page 2 P521-23 Low Phase Noise PECL VCXO (100MHz to 200MHz) ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS SYMBOL Supply Voltage MIN. V DD MAX. UNITS 4.6 V Input Voltage, dc VI V SS -0.5 V DD +0.5 V Output Voltage, dc VO V SS -0.5 V DD +0.5 V Storage Temperature TS -65 150 °C Ambient Operating Temperature TA 0 70 °C Junction Temperature TJ 125 °C 260 °C 2 kV Lead Temperature (soldering, 10s) Input Static Discharge Voltage Protection Exposure of the device under conditions beyond the limits specified by Maximum Ratings for extended periods may cause permanent damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the device at these or any other conditions above the operational limits noted in this specification is not implied. 2. Crystal Specifications PARAMETERS Crystal Resonator Frequency Crystal Loading Rating Interelectrode Capacitance Crystal Pullability Recommended ESR SYMBOL F XIN C L (xtal) CONDITIONS Parallel Fundamental Mode MIN. TYP. 100 VCON = 1.65V MAX. UNITS 200 MHz 5.0 C0 pF 3.5 pF C 0 /C 1 (xtal) AT cut 250 - RE AT cut 30 Ω 3. Voltage Control Crystal Oscillator PARAMETERS VCXO Stabilization Time * VCXO Tuning Range CLK output pullability On-chip Varicaps control range SYMBOL CONDITIONS T VCXOSTB From power valid XTAL C 0 /C 1 < 250 MIN. TYP. UNITS 10 ms 250* VCON = 1.65V ± 1.65V at room temperature VCON = 0 to 3.3V ppm ±125* ppm 3.3 – 8.8* pF Linearity 5* VCXO Tuning Characteristic 70 VCON input impedance VCON modulation BW MAX. 0V ≤ VCON ≤ 3.3V, -3dB % ppm/V 2000 kΩ 25 kHz Note: Parameters denoted with an asterisk (*) represent nominal characterization data and are not production tested to any specific limits. 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 [www.phaselink.com] Rev 7/28/04 Page 3 P521-23 Low Phase Noise PECL VCXO (100MHz to 200MHz) 4. General Electrical Specifications PARAMETERS SYMBOL Supply Current (Loaded Outputs) I DD Output valid after OE enabled Operating Voltage CONDITIONS MAX. UNITS at 3.3V @ 155MHz 55 mA Oscillator off 10 ms Oscillator on 50 ns 3.63 V 55 % V DD MIN. TYP. 2.25 Output Clock Duty Cycle @ Vdd – 1.3V (PECL) 45 50 ±50 Short Circuit Current mA 5. Jitter specifications PARAMETERS Period jitter RMS at 155MHz Period jitter peak-to-peak at 155MHz CONDITIONS MIN. TYP. 2.5 At 155.52MHz, with capacitive decoupling between VDD and GND. Over 10,000 cycles 18.5 2.5 Accumulated jitter peak-to-peak at 155MHz At 155.52MHz, with capacitive decoupling between VDD and GND. Over 1,000,000 cycles. Random Jitter “RJ” measured on Wavecrest SIA 3000 2.5 Integrated jitter RMS at 155MHz Integrated 12 kHz to 20 MHz 0.25 Accumulated jitter RMS at 155MHz MAX. 24 20 27 UNITS ps ps ps 0.35 ps Measured on Wavecrest SIA 3000 6. Phase noise specifications PARAMETERS FREQUENCY 10Hz 100Hz 1kHz 10kHz 100kHz 1MHz UNITS Phase Noise relative to carrier 155.52MHz -75 -100 -125 -140 -145 -150 dBc/Hz Note: Phase Noise measured at VCON = 0V 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 [www.phaselink.com] Rev 7/28/04 Page 4 P521-23 Low Phase Noise PECL VCXO (100MHz to 200MHz) 7. PECL Electrical Characteristics PARAMETERS SYMBOL CONDITIONS MIN. Output High Voltage V OH V DD – 1.025 Output Low Voltage V OL R L = 50 Ω to (V DD – 2V) (see figure) MAX. UNITS V V DD – 1.620 V 8. PECL Switching Characteristics PARAMETERS SYMBOL CONDITIONS MIN. TYP. MAX. UNITS Clock Rise Time tr @20/80% - PECL 0.6 1.5 ns Clock Fall Time tf @80/20% - PECL 0.5 1.5 ns PECL Levels Test Circuit OUT PECL Output Skew OUT VDD 50Ω 2.0V 50% 50Ω OUT tSKEW OUT PECL Transistion Time Waveform DUTY CYCLE 45 - 55% 55 - 45% OUT 80% 50% 20% OUT tR tF 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 [www.phaselink.com] Rev 7/28/04 Page 5 P521-23 Low Phase Noise PECL VCXO (100MHz to 200MHz) PACKAGE INFORMATION 16 PIN Narrow SOIC, TSSOP ( mm ) SOIC TSSOP Symbol Min. Max. E Min. Max. A 1.35 1.75 - 1.20 A1 0.10 0.25 0.05 0.15 B 0.33 0.51 0.19 0.30 C 0.19 0.25 0.09 0.20 D 9.80 10.00 4.90 5.10 E 3.80 4.00 4.30 H 5.80 6.20 L 0.40 e 1.27 H D 4.50 6.40 BSC 0.45 1.27 BSC 0.75 0.65 BSC A A1 C e L B ORDERING INFORMATION PART NUMBER The order number for this device is a combination of the following: Device number, Package type and Operating temperature range P521-23 DC PART NUMBER TEMPERATURE C=COMMERCIAL PACKAGE TYPE D=Die O=TSSOP Order Number Marking Package Option P521-23DC P521-23OC-R P521-23OC P521-23DC P521-23 OC P521-23 OC Die – Waffle Pack TSSOP – Tape and Reel TSSOP – Tube PhaseLink Corporation, reserves the right to make changes in its products or specifications, or both at any time without notice. The information furnished by Phaselink is believed to be accurate and reliable. However, PhaseLink makes no guarantee or warranty concerning the accuracy of said information and shall not be responsible for any loss or damage of whatever nature resulting from the use of, or reliance upon this product. LIFE SUPPORT POLICY: PhaseLink’s products are not authorized for use as critical components in life support devices or systems without the express written approval of the President of PhaseLink Corporation. 47745 Fremont Blvd., Fremont, California 94538 TEL (510) 492-0990 FAX (510) 492-0991 [www.phaselink.com] Rev 7/28/04 Page 6 WWW.ALLDATASHEET.COM Copyright © Each Manufacturing Company. All Datasheets cannot be modified without permission. This datasheet has been download from : www.AllDataSheet.com 100% Free DataSheet Search Site. Free Download. No Register. Fast Search System. www.AllDataSheet.com