PL620-88

PL620-88 MICREL | Alldatasheet

Document overview

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Technical content

Low Phase Noise XO (9.5 -65MHz Output) Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 4/28/09 Page 1

FEATURES

 Crystal input range: 19MHz to 65 MHz  Output range: 9.5MHz – 65MHz  Very low phase noise and jitter  Complementary outputs: o LVPECL (PL620 -88) o LVDS (PL620 -89)  Supports 2.5V or 3.3V Power Supply.  Available in 16 pin TSSOP GREEN/RoHS compliant package.

DESCRIPTION

The PL620 -88 ( LVPECL) and PL620 -89 (LVDS) are XO ICs specifically designed to work with fundamental or 3 rd OT crystals between 19MHz and 65MHz. The selectable divide by two feature extends the output range from 9.5MHz to 65MHz. They require very low current into the crystal resulting in better overall stability. BLOCK DIAGRAM PIN CONFIGURATION OUTPUT ENABLE LOGIC TABLE Part Number OE State PL620 -88 0 (Default) Output enabled

1 Tri-state

0 Tri-state

1 (Default) Output enabled OUTPUT FREQUENCY DIVIDE BY TWO SELECTOR (S2) S2 Output

0 Intput/2

1(Default) Input O E Q Q Oscillator Amplifier PL620-8x VDD XIN XOUT DNC S2^ OE DNC GND DNC DNC GNDBUF QBAR VDDBUF Q GNDBUF GND TSSOP-16L Note: ^ denotes internal pull up

Low Phase Noise XO (9.5 -65MHz Output) Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 4/28/09 Page 2 PACKAGE PIN ASSIGNMENT Name Pin# Description VDD 1 Power Supply. XIN 2 Crystal input. See Crystal Specification on page 3. XOUT 3 Crystal output. See Crystal Specification on page 3. DNC 4, 7, 15, 16 Do Not Connect. S2 5 Output Divide by Two selector pin. See the OUTPUT DIVIDE BY TWO SELECTOR t able on page 1. OE 6 Output Enable input . See OUTPUT ENABLE LOGIC table on page 1. GND 8, 9 Ground. GNDBUF 10 Ground for output buffer circuitry. Q 11 LVPECL or LVDS output. VDDBUF 12 Power supply for output buffer circuitry. QBAR 13 Complementary LVPECL or LVDS output. GNDBUF 14 Ground fo r output buffer circuitry. ELECTRICAL SPECIFICATIONS 1. Absolute Maximum Ratings PARAMETERS SYMBOL MIN MAX UNITS Supply Voltage VDD 4.6 V Input Voltage, dc VI -0.5 VDD +0.5 V Output Voltage, dc VO -0.5 VDD +0.5 V Storage Temperature TS -65 150 C Ambient Operating Temperature TA -40 85 C Junction Temperature TJ 125 C Lead Temperature (soldering, 10s) 260 C ESD Protection, Human Body Model 2 kV Exposure of the device under conditions beyond the limits specified by Maximum Ratings for exten ded periods may cause permanent damage to the device and affect product reliability. These conditions represent a stress rating only, and functional operations of the dev ice at these or any other co nditions above the operational limits noted in this speci fication is not implied.

Low Phase Noise XO (9.5 -65MHz Output) Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 4/28/09 Page 3 2. Crystal Specifications PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS Crystal Resonator Frequency FXIN Fundamental 19 65 MHz Crystal Loading Rating CL (x ta l) 8.5 pF Interelectrode Capacitance C0 5 pF Recommended ESR RE AT cut 30 Ω 3. General Electrical Specifications PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS Supply Current (Loaded Outputs) IDD LVPECL/LVDS , 15pF Load 100/80 mA Operating Voltage VDD 2.25 3.63 V Output Clock Duty Cycle @ 1.25V (LVDS) @ VDD – 1.3V ( LVPECL) 45 50 55 % Short Circuit Current 50 mA 4. Jitter Specifications PARAMETERS CONDITIONS MIN TYP MAX UNITS Period jitter RMS at 27MHz With capacitive decoupling between V DD and GND. Over 10,000 cycles 2.3 ps Period jitter peak -to-peak at 27MHz 18.5 20 Accumulated jitter RMS at 27MHz With capacitive decoupling between V DD and GND. Over 1,000,000 cycles. 2.3 ps Accumulated jitter pk -to-pk at 27MHz 24 25 Random Jitter “RJ” measured on Wavecrest SIA 3000 2.3 ps Measured on Wavecrest SIA 3000 5. Phase Noise Specifications PARAMETERS FREQUENCY @10Hz @100Hz @1kHz @10kHz @100kHz UNITS Phase Noise relative to carrier 27MHz -75 -100 -125 -140 -145 dBc/Hz Note: Phase Noise measured on Agilent E5500

Low Phase Noise XO (9.5 -65MHz Output) Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 4/28/09 Page 4 6. LVDS Electrical Characte ristics PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS Output Differential Voltage VOD RL = 100 Ω (see figure) 247 355 454 mV VDD Magnitude Change VOD -50 50 mV Output High Voltage VOH 1.4 1.6 V Output Low Voltage VOL 0.9 1.1 V Offset Voltage VOS 1.125 1.2 1.375 V Offset Magnitude Change VOS 0 3 25 mV Power -off Leakage IOXD Vou t = V DD or GND VDD = 0V 1 10 uA Output Short Circuit Current IOSD -5.7 -8 mA 7. LVDS Switching Characteristics PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS Differential Clock Rise Time tr RL = 100 Ω CL = 10 pF (see figure) 0.2 0.7 1.0 ns Differential C lock Fall Time tf 0.2 0.7 1.0 ns OUT OUT VOD VOS 50 50 OUT VDIFF RL = 100 CL = 10pF CL = 10pF LVDS Switching Test CircuitLVDS Levels Test Circuit LVDS Transistion Time Waveform OUT OUT OUT 0V (Differential) 20% 80% 20% 80% tR tF VDIFF

Low Phase Noise XO (9.5 -65MHz Output) Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 4/28/09 Page 5 8. LVPECL Electrical Characteristics PARAMETERS SYMBOL CONDITIONS MIN MAX UNITS Output High Voltage VOH RL = 50Ω to (V DD – 2V) (see figure) VDD – 1.025 V Output Low Voltage VOL VDD – 1.620 V 9. LVPECL Switching C haracteristics PARAMETERS SYMBOL CONDITIONS MIN TYP MAX UNITS Clock Rise Time tr @20/80% - LVPECL 0.6 1.5 ns Clock Fall Time tf @80/20% - LVPECL 0.5 1.5 ns OUT OUT 50? 50? LVPECL Levels Test Circuit LVPECL Transistion Time Waveform OUT OUT 50% 20% 80% tR tF VDD DUTY CYCLE 45 - 55% 55 - 45% 50% OUT OUT tSKEW LVPECL Output Skew 2.0V

Low Phase Noise XO (9.5 -65MHz Output) Micrel Inc. • 2180 Fortune Drive • S an Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 4/28/09 Page 6 PACKAGE INFORM ATION C L A E H D e B

16 PIN TSSOP ( mm )

Symbol Min. Max. A - 1.20 A1 0.05 0.15 B 0.19 0.30 C 0.09 0.20 D 4.90 5.10 E 4.30 4.50 H 6.40 BSC L 0.45 0.75 e 0.65 BSC

ORDERING INFORMATION

Micrel Inc., reserves the right to make changes in its products or specifications, or both at any time without notice. The informati on furnished by Micrel is believed to be accurate and reliable. However, Micrel makes no guarantee or warranty concerning the acc uracy 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 : Micrel’s products are not authorized for use as critical components in life supp ort devices or systems without the express written approval of the President of Micrel Inc. For part ordering, pleas e contact our Sales Department:

2180 Fortune Drive , San Jose, CA 95131 , USA

Tel: (408) 944 -0800 Fax: (408) 474 -1000 PART NUMBER The order number for this device is a combination of the following: Device number, Package type and Operating temperature range PL 620 -8x O C Order Number Marking Package Option PL620 -88OC -R P620 -88 OC TSSOP – Tape and Reel PL620 -88OC P620 -88 OC TSSOP – Tube PL620 -89OC -R P620 -89 OC TSSOP – Tape and Reel PL620 -89OC P620 -89 OC TSSOP – Tube PART NUMBER TEMPERATURE C=COMMERCIAL I=INDUSTRIAL PACKAGE TYPE O=TSSOP