PI6LC48H02Q

Pericom Product Datasheet - PLL Clock Driver for 1.35V/1.5V SSTE DDR3 Memory

Document overview

• Manufacturer or author: Kay Annamalai
• PDF pages: 10

Technical content

Features

ÎÎ PCIe® 3.0/2.0/1.0 compliant à PCIe 3.0 Phase jitter - 0.45ps RMS (High Freq. Typ.) ÎÎ LVDS compatible outputs ÎÎ Supply voltage of 3.3V ±10% ÎÎ 25MHz crystal or clock input frequency ÎÎ HCSL outputs, 0.8V Current mode differential pair ÎÎ Jitter 35ps cycle-to-cycle (typ) ÎÎ RMS phase jitter 12kHz ~ 20MHz @ 100MHz - 0.32ps (typ) ÎÎ RMS phase jitter 12kHz ~ 20MHz @ 125MHz - 0.3ps (typ) ÎÎ Automotive Grade 3 temperature range ÎÎ Packaging: (Pb-free and Green) à 16-pin TSSOP (L16)

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q Pin Description Pin # Pin Name I/O Ty pe Description 1 S0 Input Select pin 0 (Internal pull-up resistor). See Table 1. 2 S1 Input Select pin 1 (Internal pull-up resistor). See Table 1.

3 NC - Do not connect

4 X1/CLK Input Crystal or clock input. Connect to a 25MHz crystal or single ended clock. 5 X2 Output Crystal connection. Leave unconnected for clock input. 6 OE Input Output enable. Internal pull-up resistor.

7 GND Power Ground

8 NC - Do not connect

9 IREF Output Precision resistor attached to this pin is connected to the internal current reference.

10 CLK1 Output HCSL compliment clock output

11 CLK1 Output HCSL clock output

12 VDDA Power Connect to a +3.3V source. 13 GNDA Power Output and analog circuit ground.

14 CLK0 Output HCSL compliment clock output

15 CLK0 Output HCSL clock output

16 VDDX Power Connect to a +3.3V source. Table 1: Output Select Table S1 S0 CLK(MHz) 0 0 25 0 1 100 1 0 125 1 1 200

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q

Application Information

Decoupling capacitors of 0.01μF should be connected between each VDD pin and the ground plane and placed as close to the VDD pin as possible. Crystal Use a 25MHz fundamental mode parallel resonant crystal with less than 300PPM of error across temperature. Crystal Capacitors CL = Crystals's load capacitance in pF Crystal Capacitors (pF) = (CL - 8) *2 For example, for a crystal with 16pF load caps, the external ef - fective crystal cap would be 16 pF. (16-8)*2=16. Current Source (IREF) Reference Resistor - R R If board target trace impedance is 50Ω, then RR = 475Ω providing an IREF of 2.32 mA. The output cur - rent (IOH) is 6*IREF. Output Termination The PCI Express differential clock outputs of the PI6LC48H02 are open source drivers and require an external series resistor and a resistor to ground. These resistor values and their allow - able locations are shown in detail in the PCI Express Layout Guidelines section. The PI6LC48H02 can be configured for LVDS compatible volt- age levels. See the LVDS Compatible Layout Guidelines section. Output Structures R R =475 6*IREF =2.3mA IREF See Output Termination Sections Ω

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q Typical PCI Express (HCSL) Waveform 0.175 V 0.525 V 0.175 V 0.525 V tOR t OF 250 ps 400 ps 800 mV PCI Express Device Routing R S R S R T R T PCI-Express Load or Connector L1 L2 L3’ L1’ L2’ L4’ PI6LC48H02 Output Clock PCI Express Layout Guidelines Common Recommendations for Differential Routing Dimension or Value Unit L1 length, route as non-coupled 50Ω trace. 0.5 max inch L2 length, route as non-coupled 50Ω trace. 0.2 max inch L3 length, route as non-coupled 50Ω trace. 0.2 max inch RS 33 Ω RT 49.9 Ω Differential Routing on a Single PCB Dimension or Value Unit L4 length, route as coupled microstrip 100Ω differential trace. 2 min to 16 max inch L4 length, route as coupled stripline 100Ω differential trace. 1.8 min to 14.4 max inch Differential Routing to a PCI Express connector Dimension or Value Unit L4 length, route as coupled microstrip 100Ω differential trace. 0.25 min to 14 max inch L4 length, route as coupled stripline 100Ω differential trace. 0.225 min to 12.6 max inch

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q LVDS Recommendations for Differential Routing Dimension or Value Unit L1 length, route as non-coupled 50Ω trace. 0.5 max inch L2 length, route as non-coupled 50Ω trace. 0.2 max inch RP 100 Ω RQ 100 Ω RT 150 Ω L3 length, route as 100Ω differential trace. L3 length, route as 100Ω differential trace. LVDS Device Routing L2’ L1’ L3’ R Q R P LVDS Device Load PI6LC48H02 Clock Output R T R T

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q Electrical Specifications Recommended Operation Conditions Parameter Min. Ty p. Max. Unit Ambient Operating Temperature -40 +85 °C Power Supply Voltage (measured in respect to GND) +3.0 +3.6 V DC Characteristics (VDD = 3.3V ±10%, TA = -40°C to +85°C) Symbol Parameter Conditions Min. Ty p. Max. Unit VDD Supply Voltage 3.0 3.3 3.6 V VIH Input High Voltage(1) OE, S0, S1 2.0 VDD +0.3 V VIL Input Low Voltage(1) OE, S0, S1 GND -0.3 0.8 V IIH Input High Current Vin = VDD -5 5 µA IIL Input Low Current Vin = 0 -20 20 IDD Operating Supply Cur- rent RL = 50Ω, CL = 2pF 115 mA IDDOE OE = LOW 65 mA CIN Input Capacitance @ 55MHz 7 pF COUT Output Capacitance @ 55MHz 6 pF LPIN Pin Inductance 5 nH ROUT Output Resistance CLK Outputs 3.0 kΩ Notes: 1. Single edge is monotonic when transitioning through region. Maximum Ratings (Above which useful life may be impaired. For user guidelines, not tested.) Note: Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the de - vice. This is a stress rating only and functional op - eration of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q HCSL Output AC Characteristics (VDD = 3.3V ±10%, TA = -40°C to +85°C) Symbol Parameter Conditions Min. Ty p. Max. Unit FIN Input Frequency 25 MHz FOUT Output Frequency 25 200 MHz VOH Output High Voltage (1,2) 100 MHz HCSL output @ VDD = 3.3V 660 800 900 mV VOL Output Low Voltage(1,2) -150 0 mV VCPA Crossing Point Voltage(1,2) Absolute 250 350 550 mV VCN Crossing Point Voltage(1,2,4) Variation over all edges 140 mV JCC Jitter, Cycle-to-Cycle(1,3) 35 60 ps JPhase RMS Phase Jitter, (Random) 100MHz 25MHz Xtal input, 12kHz - 20MHz 0.32 0.5 ps 125MHz 25MHz Xtal input, 12kHz - 20MHz 0.3 0.5 ps JRMS2.0 PCIe 2.0 RMS Jitter PCIe 2.0 Test Method @ 100MHz Output 3.1 ps JRMS3.0 PCIe 3.0 RMS Jitter PLL L-BW @ 2M & 5M 1st H3 1.42 3 ps PLL L-BW @ 2M & 4M 1st H3 2.05 3 ps PLL H-BW @ 2M & 5M 1st H3 0.45 1 ps PLL H-BW @ 2M & 4M 1st H3 0.45 1 ps tOR Rise Time(1,2) From 0.175V to 0.525V 175 700 ps tOF Fall Time(1,2) From 0.525V to 0.175V 175 700 ps TSKEW Skew between outputs At Crossing Point Voltage 50 ps TDUTY-CYCLE Duty Cycle(1,3) 45 55 % TOE Output Enable Time(5) All outputs 10 μs TOT Output Disable Time(5) All outputs 10 μs tSTABLE Stabilization Time From Power-up VDD=3.3V 3.0 ms Notes: 1. RL = 50-Ohm with CL = 2 pF 2. Single-ended waveform 3. Differential waveform 4. Measured at the crossing point 5. CLK pins are tri-stated when OE is LOW

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q Thermal Characteristics Symbol Parameter Conditions Min. Ty p. Max. Unit θJA Thermal Resistance Junction to Ambient Still air 90 °C/W θJC Thermal Resistance Junction to Case 24 °C/W Recomended Crystal Specification Pericom recommends: a) FL2500184Q, SMD 3.2x2.5(4P), 25M, CL=20pF , Frequency Tolerance ±15ppm, Stability ±20ppm http://www.pericom.com/pdf/datasheets/se/FL.pdf Phase Noise Plot 100MHz 125MHz

PI6LC48H02Q Rev A www.diodes.com December 2016 © Diodes Incorporated 16-0217 A product Line of Diodes Incorporated PI6LC48H02Q

Ordering Information

Ordering Code Package Code Package Ty pe PI6LC48H02QLIE L 16-pin, 173mil Wide (TSSOP) PI6LC48H02QLIEX L 16-pin, 173mil Wide (TSSOP), Tape & Reel Notes:

• Thermal characteristics can be found on the company web site at www.pericom.com/packaging/
• "E" denotes Pb-free and Green
• Adding an "X" at the end of the ordering code denotes tape and reel packaging Packaging Mechanical: 16-Pin TSSOP (L) 16-0061 Note: For latest package info, please check: http://www.pericom.com/support/packaging/packaging-mechanicals-and-thermal-characteristics/

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