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PI6C557-05BLE

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PI6C557-05BLE

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Part Number PI6C557-05BLE
Manufacturer Diodes Incorporated
Description IC CLOCK GENERATOR 20-TSSOP
Datasheet PI6C557-05BLE Datasheet
Package 20-TSSOP (0.173", 4.40mm Width)
In Stock 2,936 piece(s)
Unit Price $ 2.7800 *
Lead Time Can Ship Immediately
Estimated Delivery Time Jun 3 - Jun 8 (Choose Expedited Shipping)
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Part Number # PI6C557-05BLE (Clock/Timing - Application Specific) is manufactured by Diodes Incorporated and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For PI6C557-05BLE specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add PI6C557-05BLE with quantity into BOM. Heisener.com does NOT require any registration to request a quote of PI6C557-05BLE.

PI6C557-05BLE Specifications

ManufacturerDiodes Incorporated
CategoryIntegrated Circuits (ICs) - Clock/Timing - Application Specific
Datasheet PI6C557-05BLEDatasheet
Package20-TSSOP (0.173", 4.40mm Width)
Series-
PLLYes
Main PurposeEthernet, PCI Express (PCIe)
InputHCSL, Crystal
OutputHCSL, LVDS
Number of Circuits1
Ratio - Input:Output1:4
Differential - Input:OutputNo/Yes
Frequency - Max200MHz
Voltage - Supply3.135 V ~ 3.465 V
Operating Temperature-40°C ~ 85°C
Mounting TypeSurface Mount
Package / Case20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package20-TSSOP

PI6C557-05BLE Datasheet

Page 1

Page 2

1 All trademarks are property of their respective owners. www.diodes.com 3/21/17 Features • PCIe® 3.0 complaint →PCIe 3.0 Phase jitter: 0.48ps RMS (High Freq. Typ.) • LVDS compatible outputs • Supply voltage of 3.3V ±5% • 25MHz crystal or clock input frequency • HCSL outputs, 0.7V Current mode differential pair • Jitter 40ps cycle-to-cycle (typ) • Spread of -0.5%, -1.0%, -1.5%, and no spread • Industrial temperature range • Spread Bypass option available • Spread and frequency selection via external pins • Packaging: (Pb-free and Green) →20-pin, 173-mil wide TSSOP Description The PI6C557-05B is a spread spectrum clock generator compliant to PCI Express® 3.0 and Ethernet requirements. The device is used for PC or embedded systems to substantially reduce Electromagnetic Interference (EMI). The PI6C557-05B provides four differential (HCSL) or LVDS spread spectrum outputs. The PI6C557-05B is configured to select spread and clock selection. Using Pericom's patented Phase-Locked Loop (PLL) techniques, the device takes a 25MHz crystal input and produces four pairs of differential outputs (HCSL) at 100MHz and 200MHz clock frequencies. It also provides spread selection of -0.5%, -1.0%, -1.5%, and no spread. Block Diagram Pin Configuration PLL Crystal Driver VDD GND X1/CLK X2 25 MHz crystal Spread Spectrum/ Output clock selection S[2:0] 3 CLK1 CLK1 Rr(IREF) CLK2 CLK2 2 2Pulling Capacitors SS Circuitry CLK3 CLK3 CLK0 CLK0 OEPD or clock 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 CLK0 CLK0 CLK1 CLK1 GNDODA VDDODA CLK2 CLK2 CLK3 CLK3 VDDXD S0 S1 S2 X1 X2 PD OE GNDXD IREF PI6C557-05B PCIe® 3.0 Clock Generator with 4 HCSL Outputs 17-0052

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2All trademarks are property of their respective owners. PI6C557-05B www.diodes.com 3/21/17 Pin Description Pin # Pin Name I/O Type Description 1 VDDXD Power Connect to a +3.3V source. 2 S0 Input Spread Spectrum Select pin #0. See Spred Spectrum Selec table. Internal pull-up resistor. 3 S1 Input Spread Spectrum Select pin #1. See Spred Spectrum Selec table. Internal pull-up resistor. 4 S2 Input Spread Spectrum Select pin #2. See Spred Spectrum Selec table. Internal pull-up resistor. 5 X1 Input Crystal connection. 6 X2 Output Crystal connection. 7 PD Input Power down. Internal pull-up resistor. 8 OE Input Output enable. Tri-states output (High=enable outputs); Low=disable outputs). Internal pull-up resister. 9 GND Power Connect to digital circuit ground. 10 IREF Output Precision resistor attached to this pin is connected to the internal current reference. 11 CLK3 Output Selectable 100/200 MHz Spread Spectrum differential compliment output clock 3. 12 CLK3 Output Selectable 100/200 MHz Spread Spectrum differential true output clock 3. 13 CLK2 Output Selectable 100/200 MHz Spread Spectrum differential compliment output clock 2. 14 CLK2 Output Selectable 100/200 MHz Spread Spectrum differential true output clock 2. 15 VDDODA Power Connect to a +3.3V analog source. 16 GND Power Output and Analog circuit ground 17 CLK1 Output Selectable 100/200 MHz Spread Spectrum differential compliment output clock 1. 18 CLK1 Output Selectable 100/200 MHz Spread Spectrum differential true output clock 1. 19 CLK0 Output Selectable 100/200 MHz Spread Spectrum differential compliment output clock 0. 20 CLK0 Output Selectable 100/200 MHz Spread Spectrum differential true output clock 0. Table 2: Spread Selection Table S2 S1 S0 Spread % Spread Type Output Frequency 0 0 0 -0.5 Down 100 0 0 1 -1.0 Down 100 0 1 0 -1.5 Down 100 0 1 1 No Spread Not Applicable 100 1 0 0 -0.5 Down 200 1 0 1 -1.0 Down 200 1 1 0 -1.5 Down 200 1 1 1 No Spread Not Applicable 200 17-0052

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3All trademarks are property of their respective owners. PI6C557-05B www.diodes.com 3/21/17 Application Information Decoupling Capacitors Decoupling capacitors of 0.01μF or 0.1μF must be connected between each VDD pin and the PCB ground plane and placed as close to the VDD pin as possible. PI6C557-05B must be isolated from system power supply noise to perform optimally. Crystal Use a 25MHz fundamental mode parallel resonant crystal with less than 30PPM of error across temperature. Current Source (Iref) Reference Resistor - RR If board target trace impedance is 50-Ohm, then RR = 475-Ohm providing an IREF of 2.32 mA. The output current (IOH) is 6*IREF. Output Termination The PCI-Express differential clock outputs of the PI6C557-05B 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 PI6C557-05B can be configured for LVDS compatible voltage levels. See the LVDS Compatible Layout Guidelines section. R R =475 6*IREF =2.3mA IREF See Output Termination Sections Ω Output Structures 17-0052

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4All trademarks are property of their respective owners. PI6C557-05B www.diodes.com 3/21/17 PCI-Express Layout Guidelines Common Recommendations for Differential Routing Dimension or Value Unit L1 length, route as non-coupled 50-Ohm trace. 0.5 max inch L2 length, route as non-coupled 50-Ohm trace. 0.2 max inch L3 length, route as non-coupled 50-Ohm trace. 0.2 max inch RS 33 Ohm RT 49.9 Ohm R S R S R T R T PCI-Express Load or Connector L1 L2 L3’ L4 L1’ L2’ L3 L4’ PI6C557-05 Output Clock 0.175 V 0.52 V 0.175 V 0.52 V t OR t OF 500 ps 500 ps 700 mV 0 PCI-Express Device Routing Typical PCI-Express (HCSL) Waveform Differential Routing on a Single PCB Dimension or Value Unit L4 length, route as coupled microstrip 100-Ohm differential trace. 2 min to 16 max inch L4 length, route as coupled stripline 100-Ohm 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 100-Ohm differential trace. 0.25 min to 14 max inch L4 length, route as coupled stripline 100-Ohm differential trace. 0.225 min to 12.6 max inch 17-0052

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5All trademarks are property of their respective owners. PI6C557-05B www.diodes.com 3/21/17 Application Information LVDS Recommendations for Differential Routing Dimension or Value Unit L1 length, route as non-coupled 50-Ohm trace. 0.5 max inch L2 length, route as non-coupled 50-Ohm trace. 0.2 max inch RP 100 Ohm RQ 100 Ohm RT 150 Ohm L3 length, route as 100Ω differential trace. L3 length, route as 100Ω differential trace. LVDS Device Routing Typical LVDS Waveform L1 L2’ L3 L1’ L2 L3’ R Q R P LVDS Device Load PI6C557-05 Clock Output R T R T 1150 mV 1250 mV t OR t OF 500 ps 500 ps 1325 mV 1000 mV 1150 mV 1250 mV 17-0052

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6All trademarks are property of their respective owners. PI6C557-05B www.diodes.com 3/21/17 Supply Voltage to Ground Potential ......................................................... 5.5V All Inputs and Outputs ..................................................... -0.5V to VDD+0.5V Ambient Operating Temperature ................................................ -40 to +85°C Storage Temperature ................................................................. -65 to +150°C Junction Temperature ............................................................................125°C ESD Protection (Input) ................................................... 2000 V min (HBM) Electrical Specifications Maximum Ratings Recommended Operation Conditions Parameter Min. Typ. Max. Unit Ambient Operating Temperature -40 +85 °C Power Supply Voltage (measured in respect to GND) 3.135 3.465 V DC Characteristics (VDD = 3.3V ±5%, TA = -40°C to +85oC) Symbol Parameter Conditions Min. Typ. Max. Unit VDD Supply Voltage 3.135 3.3 3.465 V VIH Input High Voltage(1) 2.0 VDD +0.3 V VIL Input Low Voltage(1) GND -0.3 0.8 V IIL Input Leakage Current 0 < Vin < VDD Without input pull-up and pull-downs -5 5 µA IDD Operating Supply Current RL = 50Ω, CL = 2pF @100MHz 105 120 mA IDDOE OE = LOW 40 50 mA IDDPD No load PD = LOW 60 100 µA CIN Input Capacitance Input pin capacitance 7 pF COUT Output Capacitance Output pin capacitance 6 pF LPIN Pin Inductance 5 nH ROUT Output Resistance CLK Outputs 3.0 kΩ Note: Stresses greater than those listed under MAXIMUM RAT- INGS may cause permanent damage to the device. This is a stress rating only and functional operation 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 ex- tended periods may affect reliability. Note: 1. Single edge is monotonic when transitioning through region. AC Characteristics (VDD = 3.3V ±5%, TA = -40°C to +85oC) Symbol Parameter Conditions Min. Typ. Max. Unit FIN Input Frequency 25 MHz VOUT Output Frequency HCSL terminal 200 MHz LVDS terminal 100 VOH Output High Voltage (1,2) @VDD = 3.3V 660 700 850 mV VOL Output Low Voltage(1,2) -150 0 27 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) 40 60 ps 17-0052

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7All trademarks are property of their respective owners. PI6C557-05B www.diodes.com 3/21/17 Notes: 1. RL = 50-Ohm with CL = 2 pF and RR 2. Single-ended waveform 3. Differential waveform 4. Measured at the crossing point 5. CLK pins are tri-stated when OE is LOW Thermal Characteristics Symbol Parameter Conditions Min. Typ. Max. Unit θJA Thermal Resistance Junction to Ambient Still air 93 °C/W θJB Thermal Resistance Junction to Board 54 °C/W θJC Thermal Resistance Junction to Case 20 °C/W Recomended Crystal Specification Pericom recommends: a) GC2500003 XTAL 49S/SMD(4.0 mm), 25M, CL=18pF, +/-30ppm http://www.pericom.com/pdf/datasheets/se/GC_GF.pdf b) FY2500081, SMD 5x3.2(4P), 25M, CL=18pF, +/-30ppm http://www.pericom.com/pdf/datasheets/se/FY_F9.pdf c) FL2500047, SMD 3.2x2.5(4P), 25M, CL=18pF, +/-20ppm http://www.pericom.com/pdf/datasheets/se/FL.pdf Symbol Parameter Conditions Min. Typ. Max. Unit JRMS2.0 PCIe 2.0 RMS Jitter PCI-SIG jitter test method 3.1 ps JRMS3.0 PCIe 3.0 RMS Jitter PLL L-BW @ 2M & 5M 1st H3 2.1 3 ps PLL L-BW @ 2M & 4M 1st H3 2.38 3 ps PLL H-BW @ 2M & 5M 1st H3 0.48 1 ps PLL H-BW @ 2M & 4M 1st H3 0.47 1 ps MF Modulation Frequency Spread Spectrum 30 31.5 33 kHz tOR Rise Time(1,2) From 0.175V to 0.525V 175 332 700 ps tOF Fall Time(1,2) From 0.525V to 0.175V 175 344 700 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 From power-up to VDD=3.3V From Power-up VDD=3.3V 3.0 ms tSPREAD Setting period after spread change Setting period after spread change 3.0 ms 17-0052

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8All trademarks are property of their respective owners. PI6C557-05B www.diodes.com 3/21/17 Ordering Information(1-3) Ordering Code Package Code PackageType PI6C557-05BLE L 20-Pin, 173mil Wide (TSSOP) PI6C557-05BLEX L 20-Pin, 173mil Wide (TSSOP), Tape & Reel Note: 1. Thermal characteristics and package top marking information can be found at http://www.pericom.com/packaging/ 2. E = lead-free and green packaging 3. Adding an X suffix = tape/reel Packaging Mechanical: 20-pin TSSOP (L) Note: For latest package info, please check: http://www.pericom.com/support/packaging/packaging-mechanicals-and-thermal-characteristics/ 17-0052

PI6C557-05BLE Reviews

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Kendr*****hauhan

May 24, 2020

Very good, fast shipping, super reliable seller.

Abrah*****evens

May 22, 2020

They are great as I need, I give 5 stars.

Bail*****asquez

May 20, 2020

Superb pricing and super fast delivery.

Elisa*****Panchal

May 10, 2020

I'm so sure that you're beating your competitor on delivery!

Charlo*****tchell

May 10, 2020

I wanted something that would handle voltage spikes. Worked perfectly. I plan to use four more.

Kar***** Buck

May 8, 2020

I had no problems with this product. Would I recommend it. Yes.

Kol*****barra

April 26, 2020

Used this on starter solenoid and works as expected.

Saoi*****Bedi

April 26, 2020

I took the chance and used it and I worked fine for me.

Morg*****olden

April 24, 2020

Worked like it was intended.

Forr*****Casey

April 23, 2020

Great capacitors. very fast post very good communication.

PI6C557-05BLE Guarantees

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