AK8160BV2 AKM | Alldatasheet
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[AK8160BV2] 014003471-E-00 2014/06 - 1 - 1. General Description The AK8160BV2 is a member of AKM’s low power and low jitter clock generator family designed for PCI Express generation 2.0. T his device has one PLL with spread spectrum (SS) function and enables to output high quality differential 100MHz as PCI Express clock and 25MHz as reference simultaneously. 2. Features Low Current Consumption 31mA Typ. (Full function, 25MHz output and 100MHz output) 25MHz Crystal Input or External Clock Input One single-end 25MHz-Reference Output without Spread Spectrum Two differential 100MHz Clock Outputs with Spread Spectrum Selectable Spread Spectrum ON / OFF Spread Spectrum Modulation ratio 0% (Off), -0.5% Spread Spectrum Modulation frequency 30kHz to 33kHz Low Jitter Performance of 100MHz Output Clock RMS Jitter: 2.6ps Max. (PCIE0p-1p/0n-1n pin, BW=10kHz – 1.5MHz) 2.6ps Max. (PCIE0p-1p/0n-1n pin, BW=1.5MHz – 50MHz) Cycle to Cycle Jitter: 125ps Max. (PCIE0p-1p/0n-1n pin) 23ps Typ. (1σ), (REFOUT pin) Supply Voltage 3.0V – 3.6V Operating Temperature Range -40C to +105C Package 0.5mm pitch 4mm x 4mm 20-pin QFN (Lead free) Application - Automotive Infotainment - DSLR : Digital Single-Lens Reflex camera - Network apparatus, Server, Datacenter - MFP : Multi-Function Printer - Game Low Power & Low Jitter Clock Generator for PCI Express AK8160BV2
[AK8160BV2] 014003471-E-00 2014/06 - 2 - 3. Table of Contents
- Block Diagram and Functions
Figure 1. AK8160BV2 Block Diagram
- Pin Configurations and Functions
Figure 2. AK8160BV2 Package: 20-Pin QFN (Top View)
1 SS_SEL DI
2 VSS3 PWR Ground pin 3
3 VDD3 PWR Power Supply Pin 3
4 VREF AO
This pin must be connected to 1F capacitor. This pin goes to Hi-Z when power down.
5 VDD4 PWR Power Supply Pin 4
6 VSS4 PWR Ground Pin 4
7 PCIE1p DO PCI Express Gen2 Clock Output pin 1 (Positive)
8 PCIE1n DO PCI Express Gen2 Clock Output pin 1 (Negative)
9 PCIE0p DO PCI Express Gen2 Clock Output pin 0 (Positive)
10 PCIE0n DO PCI Express Gen2 Clock Output pin 0 (Negative)
[AK8160BV2] 014003471-E-00 2014/06 - 5 -
11 PCIE1_OE DI
PCIE1p/n Output Control Pin This pin must be connected to “H” or “L”. (1). PCIE1_OE = “L” : PCIE1p/n outputs “L”. PCIE1_OE = “H” : PCIE1p/n outputs 100MHz.
12 PCIE0_OE DI
PCIE0p/n Output Control Pin This pin must be connected to “H” or “L”. (1) PCIE0_OE = “L” : PCIE0p/n outputs “L”. PCIE0_OE = “H” : PCIE0p/n outputs 100MHz.
13 VDD2 PWR Power Supply Pin 2
14 VSS2 PWR Ground Pin 2
15 XOUT AO 25MHz Crystal Connection Pin
OPEN when an External Clock Input is used
16 XIN AI 25MHz Crystal Connection Pin or External Clock Input Pin
17 VSS1 PWR Ground Pin 1
18 VDD1 PWR Power Supply Pin 1
19 REFOUT DO 25MHz Output Pin
20 REFOUT_OE DI
This pin must be connected to “H” or “L”. (1) REFOUT_OE = “L” : REFOUT outputs “L”. REFOUT_OE = “H” : REFOUT outputs 25MHz. Exposed Pad --- Connecting exposed pad of package to board ground must be required. Note: (1) This pin is recommended to connect with more than 10[k] resistor as pull-up or pull-down. If the device is mounted with wrong angle on the PCB, the resistor can prevent the device from overcurrent. (2) AI : Analog input pin AO : Analog output pin DI : Digital input pin DO : Digital output pin PWR : Power supply and Ground pin
[AK8160BV2] 014003471-E-00 2014/06 - 6 - 6. Absolute Maximum Ratings Over operating free-air temperature range unless otherwise noted (1) Items Symbol Ratings Unit Supply voltage VDD -0.3 to 4.6 V Input voltage Vin VSS-0.3 to VDD+0.3 V Input current (any pins except supplies) IIN ±10 mA Storage temperature Tstg -65 to 150 C Note (1) Stress beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only. Functional operation of the device at these or any other conditions beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to absolute-maximum-rating conditions for extended periods may affect device reliability. Electrical parameters are guaranteed only over the recommended operating temperature range. This device is manufactured on a CMOS process, therefore, generically susceptible to damage by excessive static voltage. Failure to observe proper handling and installation procedures can cause damage. AKM recommends that this device is handled with appropriate precautions. 7. Recommended Operating Conditions Parameter Symbol Conditions Min Typ Max Unit Operating temperature Ta -40 105 C Supply voltage (1) VDD Pin: VDD1 - 4 3.0 3.3 3.6 V Output Load Capacitance Cpl Pin: REFOUT 25 pF Note: (1) Power to VDD1 – VDD4 requires to be supplied from a single source. A decoupling capacitor of 0.1μF for power supply line should be connected close to each VDD pin. ESD Sensitive Device
[AK8160BV2] 014003471-E-00 2014/06 - 7 - 8. Electrical Characteristics Current Consumption All specifications at VDD: 3.0V to 3.6V, Ta: -40 to +105C, 25MHz Crystal, unless otherwise noted Parameter Symbol Conditions Min Typ Max Unit Current Consumption 1 IDD1 (1), (2) 31 38 mA Current Consumption 2 IDD2 (1), (3) 30 37 mA Current Consumption 3 IDD3 (1), (4) 0 100 A Note: (1) REFOUT : No load, PCIE0p/n, PCIE1p/n : CL=2[pF] (2) Full function REFOUT output, 100MHz output *REFOUT_OE = PCIE0_OE = PCIE1_OE = SS_SEL = “H” (3) REFOUT output off, 100MHz output *REFOUT_OE = “L”, PCIE0_OE = PCIE1_OE = SS_SEL = “H” (4) Full power down * REFOUT_OE = PCIE0_OE = PCIE1_OE = “L” DC Characteristics All specifications at VDD: 3.0V to 3.6V, Ta: -40 to +105C, 25MHz Crystal, unless otherwise noted Parameter Symbol Conditions Min Typ Max Unit High Level Input Voltage VIH REFOUT_OE pin PCIE0_OE pin PCIE1_OE pin SS_SEL pin 0.7*VDD V Low Level Input Voltage VIL REFOUT_OE pin PCIE0_OE pin PCIE1_OE pin SS_SEL pin 0.3*VDD V Input Leakage Current IL REFOUT_OE pin PCIE0_OE pin PCIE1_OE pin SS_SEL pin -1 +1 A VREF Output Voltage VREF VREF pin CVREF = 1F 0.72 0.8 0.88 V High Level Output Voltage VOH REFOUT pin IOH = -4mA 0.8*VDD V Low level Output Voltage VOL REFOUT pin IOL = 4mA 0.2*VDD V
[AK8160BV2] 014003471-E-00 2014/06 - 8 - AC Characteristics (except Differential Output) All specifications at VDD: 3.0V to 3.6V, Ta: -40 to +105C, 25MHz Crystal, unless otherwise noted Note: (1) Specification of Frequency Accuracy is measured by connecting the standard 25MHz crystal unit for part number XRCGB25M000F3M00R0 of Murata Manufacturing Co., Ltd. on page 11. This Output Clock Frequency Accuracy does not include accuracy of crystal unit. Total output clock frequency accuracy could be up to “Output Clock Frequency Accuracy” + “Crystal unit accuracy”. (2) Use Case of External Clock Input (3) Transition time between 0.2VDD and 0.8VDD (4) When the standard 25MHz Crystal Unit is connected. (5) When the Duty Cycle of External Clock Input is 50%. (6) 1σ in 10000 sampling or more (7) Transition time to settle output into ±0.1% of specified frequency after escaping power down mode. (REFOUT_OE pin = PCIE0_OE pin = PCIE1_OE pin = ‘L’). Parameter Symbol Conditions Min Typ Max Unit Crystal Clock Frequency Fin_xo XIN pin XOUT pin 25.000 MHz Oscillation Accuracy Faccuracy REFOUT pin (1) -30 0 +30 ppm External Clock Frequency Fin_ext XIN pin (2) 25.000 MHz Input Clock Voltage Swing Vswing_ext XIN pin (2) 1 VDD Vpp Input Clock Duty Cycle Textindc XIN pin (2) 50 % Output Frequency Fosc REFOUT pin 25.000 MHz Output Rising and Falling TRF REFOUT pin (3) 1.8 5.0 ns Output Clock Duty Cycle Toutdc_xtal (4) REFOUT pin 45 50 55 % Toutdc_ext (5) REFOUT pin 40 50 60 % Cycle to Cycle Jitter Jitc2c REFOUT pin (6) 23 48 ps Output Lock Time Tlock REFOUT pin (7) 0.5 2 ms
Figure 11. Equivalent parameters of crystal and load capacitance
- Recommended External Circuits
Figure 12. Recommended External Circuits connection diagram shown in Figure 12. AK8160BV2 has four power supply pins (VDD1-4) which deliver power to internal circuitry segments. eliminate any common impedance with other critical switching signal return. VSS1pin, the VSS2 pin, VSS3 pin and the VSS4 pin, respectively. as possible. These traces should be also located away from any traces with switching signal. Refer the specification of the crystal.
[AK8160BV2] 014003471-E-00 2014/06 - 14 - 10. Package Outline Dimensions 0.5mm pitch 4mm x 4mm 20-pin QFN (Unit: mm) 4.00±0.10 4.00±0.10 A B 0.25±0.05 610 C0.350.55±0.10 2.10±0.10 0.50TYP Ｃ
0.10 C BAM
0.75±0.05 0.05MAX 0.08 C 2.10±0.10 Package & Lead Frame Material Package molding compound : Epoxy Resin (Green Compound) Lead frame material : Cu Lead frame surface treatment : 100% Sn
[AK8160BV2] 014003471-E-00 2014/06 - 15 - Marking a: #1 Pin Index : Circle b: Part number : 160BV2 c: Date code : 4 digits 3 2 1 4 5 13 14 15 12 11 xxxx 160BV2
Revision History
Date Revision Reason Page/Line Contents 14/06/24 00 Initial Release. a b C
[AK8160BV2] 014003471-E-00 2014/06 - 16 - 11. Important Notice IMPORTANT NOTICE 0. Asahi Kasei Microdevices Corporation (“AKM”) reserves the right to make changes to the information contained in this document without notice. When you consider any use or application of AKM product stipulated in this document ( “Product”), please make inquiries the sales office of AKM or authorized distributors as to current status of the Products. 1. All information included in this document are provided only to illustrate the operation and applicatio n examples of AKM Products . AKM neither makes warranties or representations with respect to the accuracy or completeness of the information contained in this document nor grants any license to any intellectual property rights or any other rights of AKM or any third party with respect to the information in this document. You are fully responsible for use of such information contained in this document in your product design or applications. AKM ASSUMES NO LIABILITY FOR ANY LOSSES INCURRED BY YOU OR THIRD PART IES ARISING FROM THE USE OF SUCH INFORMATION IN YOUR PRODUCT DESIGN OR APPLICATIONS. 2. The Product is neither intended nor warranted for use in equipment or systems that require extraordinarily high levels of quality and/or reliability and/or a malfunction or failure of which may cause loss of human life, bodily injury, serious property damage or serious public impact , including but not limited to, equipment used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control combustions or explosions, safety devices, elevators and escalators, devices related to electric power, and equipment used in finance -related fields. Do not use Product for the above use unless specifically agreed by AKM in writing. 3. Though AKM works continually to improve the Product’s quality and reliability, you are responsible for complying with safety standards and for providing adequ ate designs and safeguards for your hardware, software and systems which minimize risk and avoid situations in which a malfunction or failure of the Product could cause loss of human life, bodily injury or damage to property, including data loss or corruption. 4. Do not use or otherwise make available the Product or related technology or any information contained in this document for any military purposes, including without limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile technology products (mass destruction weapons). When exporting the Products or related technology or any information contained in this document, you should comply with the applicable export control laws and regulations and follow the procedures required by such laws and regulations. The Products and related technology may not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any applicable domestic or foreign laws or regulations. 5. Please contact AKM sales representative for details as to environmental matters such as the RoHS compatibility of the Product. Please use the Product in compliance with all applicable laws and regulations that regulate the inc lusion or use of controlled substances, including without limitation, the EU RoHS Directive. AKM assumes no liability for damages or losses occurring as a result of noncompliance with applicable laws and regulations. 6. Resale of the Product with provisions different from the statement and/or technical features set forth in this document shall immediately void any warranty granted by AKM for the Product and shall not create or extend in any manner whatsoever, any liability of AKM. 7. This document may not be reproduced or duplicated, in any form, in whole or in part, without prior written consent of AKM.