PL600-27T MICREL | Alldatasheet
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Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 6/24 /10 Page 1
FEATURES
3 LVCMOS outputs with OE tri -state co ntrol Low current consumption: o <4.5mA @ 27MHz, 3.3V 10 to 52MHz fundamental crystal input 1 to 100MHz reference clock input Accepts both LVCMOS and sine wave inputs Low phase noise ( -130 dBc @ 10kHz of fset) Low ji tter (RMS): 2.5ps period jitter 12mA drive cap ability at TTL output 1.8V to 3. 3V operation Available in GREEN /RoHS 8-pin SO P and 6 -pin SOT23 packages
DESCRIPTION
The PL600 -27T is a low cost XO IC , designed to r e- place multiple XO solutions saving the cos t and board space of clock distribution buffers. In addition, it provide s among the lowest current on the market for the 10MHz to 52MHz range. The PL600 -27T ac- cept s crys tal and clock inputs from 10 to 52MHz (fundamental res onant mode crystal ) and provide s low phase noise (< -130dBc at 10kHz offset at 30MHz), and very low jitter (2.5 ps RMS period jitter) outputs. PIN ASSIGNMENT BLOCK DIAGRAM Xtal Osc XIN/FIN XOUT CLK0 OE CLK1 CLK2 PL600-27T 3 4 6CLK1 GND FIN CLK2 CLK0 VDD SOT23-6L PL600-27T 4 5 8XIN/FIN OE^ CLK1 GND XOUT VDD CLK2 CLK0 ^: Denotes internal Pull-up SOP-8L
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 6/24 /10 Page 2 PIN DESCRIPTION Name Package Pin Number Type Description SOP-8L SOT23 -6L XIN/FIN 1 3 (FIN Onl y) I Crystal input (10MHz to 52MHz) or Ref Clock input (1MHz to 100MHz) OE 2 - I Output Enable input. This pin has inte rnal pull -up resistor. All outputs will be tri -stated when low. CLK1 3 1 O Output clock. GND 4 2 P Ground. CLK2 5 6 O Output clock. VDD 6 5 P Power supply. CLK0 7 4 O Output clock. XOUT 8 - I Crystal output. ELECTRICAL SPECIFICA TIONS 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 Temper ature* 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 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 dev ice at these or any other co nditions above the operational limits noted in this specification is not implied. *Operating temperature is guaranteed by design. Parts are tested to comme rcial grade only.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 6/24 /10 Page 3 2. AC Electrical Specifications PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS Input Crystal Fr equency 10 52 MHz Input (FIN) Fr equency LVCMOS or Sine Wave input 1 100 MHz Input (FIN) Signal Amplitude Internally AC coupled (High Fr equency) 0.5 VDD Vpp Input (FIN) Signal Amplitude Internally AC coupled (Low Fr equency) 3.3V <50MHz, 2.5V <40MHz, 1.8V <15MHz 0.1 VDD Vpp Settling Time At power -up ( VDD < 1.62V) 10 ms Output Clock Rise/Fall Time 0.8V ~ 2.0V with 10 pF load 1.15 ns 0.3V ~ 3.0V with 15 pF load 2.4 VDD sensitivity Frequency vs. VDD +/- 10% 0.8 0.8 ppm Output Clock Duty Cycle Measured @ 50% V DD 45 50 55 % Short Circuit Cu rrent 50 mA 3. Jitter and Phase Noise Specif ications PARAMETERS CONDITIONS MIN. TYP. MAX. UNITS RMS Period Jitter (1 sigma – 1000 samples) With capacitive decoupling b e- tween VDD and GND . 2.1 2.5 ps Phase Noise rel ative to carrier 30MHz @100Hz offset -80 dBc/Hz Phase Noise rel ative to carrier 30MHz @1kHz offset -110 dBc/Hz Phase Noise rel ative to carrier 30MHz @10kHz offset -130 dBc/Hz Phase Noise rel ative to carrier 30MHz @100 kHz offset -138 dBc/Hz Phase Noise rel ative to carrier 30MHz @1MHz offset -145 dBc/Hz 4. DC Specifications PARAM ETERS SYMBOL COND ITIONS MIN. TYP. MAX. UNITS Supply Current, D ynamic, with Loaded Outputs (at VDD = 3.3V) IDD At 10MHz, Cload=15pF 2.0 2.5 mA At 27MHz, Cload=15pF 4.0 4.5 At 48MHz, Cload=15pF 7.0 7.5 Supply Cu rrent in Tri-State IDD Output di sabled 520 A Operating Voltage VDD 1.62 3.63 V Output High Voltage VOH IOH = -12mA (3.3V) 2.4 V Output Low Voltage VOL IOL = 12mA (3.3V) 0.4 V Output High Voltage VOHC IOH = -4mA VDD – 0.4 V Output Drive Current At TTL level (3.3V) 12 mA
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 6/24 /10 Page 4 5. Crystal Specifications PARAMETERS SYMBOL MIN. TYP. MAX. UNITS Crystal Resonator Fr equency FXIN 10 52 MHz Crystal Loading Ra ting CL (x ta l) 8.5 pF Maximum Sustainable Drive Level 200 W Operating Drive Level 50 W C0 (for frequencies below 30MHz) 5 pF C0 (for frequencies above 30MHz) 4 pF ESR RS 30
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 6/24 /10 Page 5 LAYOUT RECOMMENDATIONS The following guidelines are to assist you with a pe rformance optimized PCB design: Signal Integ rity and Termination Considerations - Keep traces short! - Trace = Inductor. With a capacitive load this equals ringing! - Long trace = Transmission Line. Without proper te r- mination this will cause refle ctions ( looks like ringing ). - Design long tra ces (> 1 inch) as “striplines” or “micr ostrips” with defined impe dance. - Match trace at one side to avoid reflections boun cing back and forth. Decoupling and Power Supply Consi derations - Place decoupling capacitors as close as po ssible to the VDD pin(s) to limit noise from the power supply - Multiple VDD pins should be decoupled separately for best performance. - Addition of a ferrite bead in series with VDD can help prevent noise from other board sources - Value of decoupling capacitor is frequency d e- pendant. Typical values to use are 0.1 F for d e- signs using frequencies < 50MHz and 0.01 F for designs using frequencies > 50MHz. Crystal Tuning Circuit Series and parallel capacitors used to fine tune the crystal load to the circuit load. CST – Series Capacitor, used to lower circuit load to match crystal load. Raises frequency offset. This can be eliminated by using a crystal with a Cload of equal or greater value than the oscillator. CPT – Parallel Capacitors, Used to raise the circuit load to match the crystal load. Lowers frequency offset. Crystal XIN 1 8 XOUT Cpt Cpt Cst Typical LVCMOS termination Place Series Resistor as close as possible to LVCMOS output LVCMOS Output Buffer ( Typical buffer impedance 20 To LVCMOS Input Series Resistor Use value to match output buffer impedance to 50 trace. Typical value 30 50 line
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 6/24 /10 Page 6 PACKAGE DRAWINGS (GREEN PACKAGE COMPLIANT) SOP-8L SOT23 -6L Symbol Dimension in MM Min. Max. A 1.35 1.75 A1 0.10 0.25 A2 1.25 1.50 B 0.33 0.53 C 0.19 0.27 D 4.80 5.00 E 3.80 4.00 H 5.80 6.20 L 0.40 0.89 e 1.27 BSC Symbol Dimension in MM Min. Max. A 1.05 1.35 A1 0.05 0.15 A2 1.00 1.20 b 0.30 0.50 c 0.08 0.20 D 2.80 3.00 E 1.50 1.70 H 2.60 3.00 L 0.35 0.55 e 0.95 BSC C L E H D e b A C L E H D e b A Pin1 Dot
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1(408) 944 -0800 • fax +1(408) 474 -1000 • www.micrel.com Rev 6/24 /10 Page 7 ORDERING INFORMATION (GREEN PACKAGE COMPL IANT) Micrel Inc., reserves the right to make changes in its products or specifications, or both at any time without no tice. The information furnished by Micrel is believed to be accurate and reliable. However, Micrel makes no guarantee or warranty concerning the accuracy of sa id 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 support devices or systems without the express written approval of the President of Micrel Inc. For part ordering, please 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: Part number, Package type and Operating temperature range PL600-27T X X X Part Number Package Type S=SOP-8L T=SOT23-6L Temperature Range C=Commercial (0°C to 70°C) I=Industrial (-40°C to 85°C) Shipping Option Blank=Tube R=Tape & Reel Part / Order Nu mber Marking Package Option PL600-27TS C P600 -27T SC LLLLL 8-Pin SOP (Tube) PL600-27TS C-R 8-Pin SOP (Tape and Reel) PL600-27TS I P600 -27T SI LLLLL 8-Pin SOP (Tube) PL600-27TS I-R 8-Pin SOP (Tape and Reel) PL600 -27TTC -R A27T LLL 6-Pin SOT23 (Tape and Reel) PL600 -27TT I-R A27T LLLI 6-Pin SOT23 (Tape and Reel) † Marking Notes : LLL and LLLLL represent the production lot number