840002AGLFT

840002AGLFT

  • 厂商:

    RENESAS(瑞萨)

  • 封装:

    TSSOP-16

  • 描述:

    IC FREQ SYNTHESIZER 16-TSSOP

  • 数据手册
  • 价格&库存
840002AGLFT 数据手册
840002 FEMTOCLOCKS™ Crystal-to-LVCMOS/ LVTTL Frequency Synthesizer DATASHEET GENERAL DESCRIPTION FEATURES The 840002 is a 2 output LVCMOS/LVTTL Synthesizer optimized to generate Fibre Channel reference clock frequencies. Using a 26.5625MHz, 18pF parallel resonant crystal, the following frequencies can be generated based on the 2 frequency select pins (F_SEL1:0): 212.5MHz, 159.375MHz, 156.25MHz, 106.25MHz, and 53.125MHz. The 840002 uses low phase noise VCO technology and can achieve 1ps or lower typical rms phase jitter, easily meeting Fibre Channel jitter requirements. The 840002 is packaged in a 16-pin TSSOP package. • Two LVCMOS outputs @ 3.3V, 17Ω typical output impedance • Selectable crystal oscillator interface or LVCMOS single-ended input • Output frequency range: 46.66MHz - 233.33MHz • VCO range: 560MHz - 700MHz • Supports the following output frequencies: 212.5MHz, 159.375MHz, 156.25MHz, 106.25MHz and 53.125MHz • RMS phase jitter @ 212.5MHz (637kHz - 10MHz): 0.83ps (typical) Typical phase noise at 212.5MHz: Offset Noise Power 100Hz ................-91.3 dBc/Hz 1kHz ..............-114.3 dBc/Hz 10kHz ..............-120.7 dBc/Hz 100kHz ..............-120.2 dBc/Hz • Full 3.3V or 3.3V core/2.5V output supply modes • 0°C to 70°C ambient operating temperature • Available in lead-free RoHS compliant package FREQUENCY SELECT FUNCTION TABLE FOR FIBRE CHANNEL APPLICATIONS Inputs Input Frequency (MHz) F_SEL1 F_SEL0 M Divider Value N Divider Value M/N Ratio Value 26.5625 0 0 24 3 8 212.5 26.5625 0 1 24 4 6 159.375 26.5625 1 0 24 6 4 106.25 26.5625 1 1 24 12 2 53.125 26.04166 0 1 24 4 6 156.25 BLOCK DIAGRAM OE PIN ASSIGNMENT Pullup F_SEL0 nXTAL_SEL TEST_CLK OE MR nPLL_SEL VDDA VDD 2 F_SEL1:0 Pullup:Pullup nPLL_SEL Pulldown nXTAL_SEL XTAL_IN Output Frequency (MHz) Pulldown 26.5625MHz OSC F_SEL1:0 0 1 00 01 10 11 XTAL_OUT TEST_CLK Pulldown 1 Phase Detector VCO 0 N ÷3 ÷4 ÷6 ÷12 (default) 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 F_SEL1 GND GND Q0 Q1 VDDO XTAL_IN XTAL_OUT Q0 840002 Q1 16-Lead TSSOP 4.4mm x 5.0mm x 0.92mm package body G Package Top View M = ÷24 (fixed) MR Pulldown 840002 REVISION C NOVEMBER 10, 2014 1 ©2014 Integrated Device Technology, Inc. 840002 DATA SHEET TABLE 1. PIN DESCRIPTIONS Number Name 1 F_SEL0 Type Input Description Pullup Frequency select pin. LVCMOS/LVTTL interface levels. 2 nXTAL_SEL Input Selects between the crystal or TEST_CLK inputs as the PLL reference Pulldown source. When HIGH, selects TEST_CLK. When LOW, selects XTAL inputs. LVCMOS/LVTTL interface levels. 3 TEST_CLK Input Pulldown Single-ended LVCMOS/LVTTL clock input. 4 OE Input 5 MR Input 6 nPLL_SEL Input 7 VDDA Power Analog supply pin. 8 VDD Power Core supply pin. 9, 10 XTAL_OUT, XTAL_IN Input Crystal oscillator interface. Output enable pin. When HIGH, the outputs are active. When LOW, the outputs are in a high impedance state. LVCMOS/LVTTL interface levels. Active HIGH Master Reset. When logic HIGH, the internal dividers are Pulldown reset causing active outputs to go low. When logic LOW, the internal dividers and the outputs are enabled. LVCMOS/LVTTL interface levels. PLL Bypass. When LOW, the output is driven from the VCO output. When HIGH, the PLL is bypassed and the output frequency = reference Pulldown clock frequency/n output divider. LVCMOS/LVTTL interface levels. Pullup 11 VDDO Power Output supply pin. 12, 13 Q1, Q0 Output Single-ended clock outputs. LVCMOS/LVTTL interface levels. 14, 15 GND Power 16 F_SEL1 Input Power supply ground. Pullup Frequency select pin. LVCMOS/LVTTL interface levels. NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values. TABLE 2. PIN CHARACTERISTICS Symbol Parameter CIN Input Capacitance CPD Power Dissipation Capacitance 8 pF RPULLUP Input Pullup Resistor 51 kΩ RPULLDOWN Input Pulldown Resistor ROUT Test Conditions Minimum Typical Maximum 4 pF 51 Output Impedance Units kΩ 3.3V±5% 14 17 21 Ω 2.5V±5% 16 21 25 Ω TABLE 3. FREQUENCY SELECT FUNCTION TABLE Input Frequency (MHz) Inputs M Divider Value N Divider Value 24 3 26.5625 F_SEL1 0 F_SEL0 0 26.5625 0 1 24 26.5625 1 0 26.5625 1 1 26.04166 0 1 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER M/N Divider Value 8 Output Frequency (MHz) 212.5 4 6 159.375 24 6 4 106.25 24 12 2 53.125 24 4 6 156.25 2 REVISION C 11/10/14 840002 DATA SHEET ABSOLUTE MAXIMUM RATINGS Supply Voltage, VDD 4.6V Inputs, VI -0.5V to VDD + 0.5 V Outputs, VO -0.5V to VDD + 0.5V Package Thermal Impedance, θJA 89°C/W (0 lfpm) Storage Temperature, TSTG -65°C to 150°C NOTE: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings are stress specifications only. Functional operation of product at these conditions or any conditions beyond those listed in the DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. TABLE 4A. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDA = 3.3V±5%, VDDO = 3.3V±5% OR 2.5V±5%, TA = 0°C TO 70°C Symbol VDD Parameter Core Supply Voltage VDDA Analog Supply Voltage VDDO Output Supply Voltage IDD Test Conditions Minimum 3.135 Typical 3.3 Maximum 3.465 Units V 3.135 3.3 3.465 V 3.135 3.3 3.465 V 2.375 2.5 2.625 V Power Supply Current 100 mA IDDA Analog Supply Current 12 mA IDDO Output Supply Current 5 mA TABLE 4B. LVCMOS/LVTTL DC CHARACTERISTICS, VDD = VDDA = 3.3V±5%, VDDO = 3.3V±5% OR 2.5V±5%, TA = 0°C TO 70°C Symbol VIH VIL Parameter Input High Voltage Input Low Voltage IIH Input High Current IIL Input Low Current Test Conditions Minimum F_SEL1:0, nPLL_SEL, nXTAL_SEL, OE, MR TEST_CLK F_SEL1:0, nPLL_SEL, nXTAL_SEL, OE, MR TEST_CLK OE, F_SEL0, F_SEL1 nPLL_SEL, MR, nXTAL_ SEL, TEST_CLK OE, F_SEL0, F_SEL1 nPLL_SEL, MR, nXTAL_ SEL, TEST_CLK VOH Output High Voltage; NOTE 1 VOL Output Low Voltage; NOTE 1 Typical Maximum Units 2 VDD + 0.3 V 2 VDD + 0.3 V -0.3 0.8 V -0.3 1.3 V VDD = VIN = 3.465V 5 µA VDD = VIN = 3.465V 150 µA VDD = 3.465V, VIN = 0V -150 µA VDD = 3.465V, VIN = 0V -5 µA VDDO = 3.3V ± 5% 2.6 V VDDO = 2.5V ± 5% 1.8 V VDDO = 3.3V or 2.5V ± 5% 0.5 V NOTE 1: Outputs terminated with 50W to VDDO/2. See Parameter Measurement Information, Output Load Test Circuit. TABLE 5. CRYSTAL CHARACTERISTICS Parameter Test Conditions Mode of Oscillation Minimum Typical Maximum Units Fundamental Frequency 26.5625 MHz Ω Equivalent Series Resistance (ESR) 50 Shunt Capacitance 7 pF Drive Level 1 mW NOTE: Characterized using an 18pf parallel resonant crystal. REVISION C 11/10/14 3 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 840002 DATA SHEET TABLE 6A. AC CHARACTERISTICS, VDD = VDDA = VDDO = 3.3V±5%, TA = 0°C TO 70°C Symbol Parameter fOUT Output Frequency Range tsk(o) Output Skew; NOTE 1, 3 tjit(Ø) RMS Phase Jitter (Random); NOTE 2 tR / tF Output Rise/Fall Time odc Output Duty Cycle Test Conditions Minimum F_SEL[1:0] = 00 186.67 Typical Maximum Units 226.67 MHz F_SEL[1:0] = 01 140 170 MHz F_SEL[1:0] = 10 93.33 113.33 MHz F_SEL[1:0] = 11 46.67 56.67 MHz 12 ps 212.5MHz @ Integration Range: 637kHz - 10MHz 159.375MHz @ Integration Range: 637kHz - 10MHz 156.25MHz @ Integration Range: 1.875MHz - 20MHz 106.25MHz @ Integration Range: 637kHz - 10MHz 53.125MHz @ Integration Range: 637kHz - 10MHz 20% to 80% 200 F_SEL[1:0] ¹ 00 46 0.83 ps 0.62 ps 0.59 ps 0.80 ps 0.68 ps 700 F_SEL[1:0] = 00 42 NOTE 1: Defined as skew between outputs at the same supply voltages and with equal load conditions. Measured at VDDO/2. NOTE 2: Please refer to the Phase Noise Plot. NOTE 3: This parameter is defined in accordance with JEDEC Standard 65. ps 54 % 58 % Maximum Units 226.67 MHz TABLE 6B. AC CHARACTERISTICS, VDD = VDDA = 3.3V±5%, VDDO = 2.5V±5%, TA = 0°C TO 70°C Symbol Parameter fOUT Output Frequency Range tsk(o) Output Skew; NOTE 1, 3 tjit(Ø) RMS Phase Jitter (Random); NOTE 2 tR / tF Output Rise/Fall Time odc Output Duty Cycle Test Conditions Minimum F_SEL[1:0] = 00 186.67 Typical F_SEL[1:0] = 01 140 170 MHz F_SEL[1:0] = 10 93.33 113.33 MHz F_SEL[1:0] = 11 46.67 56.67 MHz 12 ps 212.5MHz @ Integration Range: 637kHz - 10MHz 159.375MHz @ Integration Range: 637kHz - 10MHz 156.25MHz @ Integration Range: 1.875MHz - 20MHz 106.25MHz @ Integration Range: 637kHz - 10MHz 53.125MHz @ Integration Range: 637kHz - 10MHz 20% to 80% 200 F_SEL[1:0] ¹ 00 46 0.73 ps 0.62 ps 0.56 ps 0.76 ps 0.72 ps F_SEL[1:0] = 00 42 NOTE 1: Defined as skew between outputs at the same supply voltages and with equal load conditions. Measured at VDDO/2. NOTE 2: Please refer to the Phase Noise Plot. NOTE 3: This parameter is defined in accordance with JEDEC Standard 65. FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 4 700 ps 54 % 58 % REVISION C 11/10/14 840002 DATA SHEET TYPICAL PHASE NOISE AT 53.125MHZ @3.3V ➤ 0 -10 -20 Fibre Channel Filter -30 -40 53.125MHz NOISE POWER dBc Hz -50 RMS Phase Jitter (Random) 637KHz to 10MHz = 0.68ps (typical) -60 -70 -80 -90 -100 Raw Phase Noise Data -110 -120 ➤ -130 -140 -150 ➤ -160 -170 Phase Noise Result by adding Fibre Channel Filter to raw data -180 -190 100 1k 10k 100k 1M 10M 100M OFFSET FREQUENCY (HZ) TYPICAL PHASE NOISE AT 212.5MHZ @3.3V ➤ 0 -10 -20 Fibre Channel Filter -30 -40 212.5MHz RMS Phase Jitter (Random) 637KHz to 10MHz = 0.83ps (typical) -60 -70 -80 -90 Raw Phase Noise Data -100 ➤ NOISE POWER dBc Hz -50 -110 -120 -130 -140 ➤ -150 -160 -170 Phase Noise Result by adding Fibre Channel to raw data -180 -190 100 1k 10k 100k 1M 10M 100M OFFSET FREQUENCY (HZ) REVISION C 11/10/14 5 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 840002 DATA SHEET PARAMETER MEASUREMENT INFORMATION 3.3V CORE/3.3V OUTPUT LOAD AC TEST CIRCUIT 3.3V CORE/2.5V OUTPUT LOAD AC TEST CIRCUIT RMS PHASE JITTER OUTPUT SKEW OUTPUT RISE/FALL TIME OUTPUT DUTY CYCLE/PULSE WIDTH/PERIOD FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 6 REVISION C 11/10/14 840002 DATA SHEET APPLICATION INFORMATION POWER SUPPLY FILTERING TECHNIQUES As in any high speed analog circuitry, the power supply pins are vulnerable to random noise. The 840002 provides separate power supplies to isolate any high switching noise from the outputs to the internal PLL. VDD, VDDA, and VDDO should be individually connected to the power supply plane through vias, and bypass capacitors should be used for each pin. To achieve optimum jitter performance, power supply isolation is required. Figure 1 illustrates how a 10Ω resistor along with a 10µF and a .01μF bypass capacitor should be connected to each VDDA. 3.3V VDD .01μF 10Ω VDDA .01μF 10μF FIGURE 1. POWER SUPPLY FILTERING CRYSTAL INPUT INTERFACE The 840002 has been characterized with 18pF parallel resonant crystals. The capacitor values shown in Figure 2 below were determined using a 26.5625MHz, 18pF parallel resonant crystal and were chosen to minimize the ppm error. XTAL_IN C1 22p X1 18pF Parallel Cry stal XTAL_OUT C2 22p ICS84332 840002 Figure 2. CRYSTAL INPUt INTERFACE REVISION C 11/10/14 7 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 840002 DATA SHEET RECOMMENDATIONS FOR UNUSED INPUT AND OUTPUT PINS INPUTS: OUTPUTS: CRYSTAL INPUT: For applications not requiring the use of the crystal oscillator input, both XTAL_IN and XTAL_OUT can be left floating. Though not required, but for additional protection, a 1kΩ resistor can be tied from XTAL_IN to ground. LVCMOS OUTPUT: All unused LVCMOS output can be left floating. We recommend that there is no trace attached. TEST_CLK INPUT: For applications not requiring the use of the test clock, it can be left floating. Though not required, but for additional protection, a 1kΩ resistor can be tied from the TEST_CLK to ground. LVCMOS CONTROL PINS: All control pins have internal pull-ups or pull-downs; additional resistance is not required but can be added for additional protection. A 1kΩ resistor can be used. LAYOUT GUIDELINE Figure 3 shows a schematic example of the 840002. An example of LVCMOS termination is shown in this schematic. Additional LVCMOS termination approaches are shown in the LVCMOS Termination Application Note. In this example, an 18 pF parallel resonant 26.5625MHz crystal is used. The C1=22pF and C2=22pF are recommended for frequency accuracy. For different board layout, the C1 and C2 may be slightly adjusted for optimizing frequency accuracy. 1KΩ pullup or pulldown resistors can be used for the logic control input pins. Logic Control Input Examples Set Logic Input to '1' VDD RU1 1K Set Logic Input to '0' VDD R2 33 RU2 Not Install To Logic Input pins To Logic Input pins U1 RD2 1K RD1 Not Install VDD 1 2 3 4 5 6 7 8 VDDA R1 10 C3 10uF Zo = 50 Ohm VDD C4 0.01u LVCMOS FSEL0 XTAL_SEL TEST_CLK OE MR nPLL_SEL VDDA VDD FSEL1 GND GND Q0 Q1 VDDO XTAL_IN XTAL_OUT 16 15 14 13 12 11 10 9 VDD R3 100 C6 0.1u Zo = 50 Ohm C5 0.1u ICS840002 R4 100 XTAL2 If not using the crystal input, it can be left floating. For additional protection the XTAL_IN pin can be tied to ground. LVCMOS C2 22pF X1 XTAL1 Optional Termination C1 22pF Unused output can be left floating. There should no trace attached to unused output. Device characterized with all outputs terminated. FIGURE 3. 840002 SCHEMATIC EXAMPLE FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 8 REVISION C 11/10/14 840002 DATA SHEET RELIABILITY INFORMATION TABLE 7. θJAVS. AIR FLOW TABLE FOR 16 LEAD TSSOP θJA by Velocity (Linear Feet per Minute) Single-Layer PCB, JEDEC Standard Test Boards Multi-Layer PCB, JEDEC Standard Test Boards 0 200 500 137.1°C/W 89.0°C/W 118.2°C/W 81.8°C/W 106.8°C/W 78.1°C/W NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs. TRANSISTOR COUNT The transistor count for 840002 is: 3085 REVISION C 11/10/14 9 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 840002 DATA SHEET PACKAGE OUTLINE - G SUFFIX FOR 16 LEAD TSSOP TABLE 8. PACKAGE DIMENSIONS Millimeters SYMBOL Minimum N Maximum 16 A -- 1.20 A1 0.05 0.15 A2 0.80 1.05 b 0.19 0.30 c 0.09 0.20 D 4.90 5.10 E E1 6.40 BASIC 4.30 e 4.50 0.65 BASIC L 0.45 0.75 α 0° 8° aaa -- 0.10 Reference Document: JEDEC Publication 95, MO-153 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 10 REVISION C 11/10/14 840002 DATA SHEET TABLE 9. ORDERING INFORMATION Part/Order Number Marking Package Shipping Packaging Temperature ICS840002AGLF 840002AL 16 Lead “Lead-Free” TSSOP tube 0°C to 70°C ICS840002AGLFT 840002AL 16 Lead “Lead-Free” TSSOP tape & reel 0°C to 70°C NOTE: Parts that are ordered with an “LF” suffix to the part number are the Pb-Free configuration and are RoHS compliant. REVISION C 11/10/14 11 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER 840002 DATA SHEET REVISION HISTORY SHEET Rev Table Page T5 T9 3 6 8 11 B C T9 11 FEMTOCLOCKS™ CRYSTAL-TOLVCMOS/ LVTTL FREQUENCY SYNTHESIZER Description of Change Crystal Characteristics Table - added Drive Level. Updated Output Load AC Test Circuit diagrams. Added Recommendations for Unused Input and Output Pins. Ordering Information Table - corrected standard marking and added lead-free marking and note. Ordering information - removed leaded devices - PDN CQ-13-02 expired. Updated Datasheet format. 12 Date 2/17/06 11/10/14 REVISION C 11/10/14 Corporate Headquarters 6024 Silver Creek Valley Road San Jose, California 95138 Sales 800-345-7015 or +408-284-8200 Fax: 408-284-2775 www.IDT.com Technical Support email: clocks@idt.com DISCLAIMER Integrated Device Technology, Inc. (IDT) and its subsidiaries reserve the right to modify the products and/or specifications described herein at any time and at IDT’s sole discretion. All information in this document, including descriptions of product features and performance, is subject to change without notice. Performance specifications and the operating parameters of the described products are determined in the independent state and are not guaranteed to perform the same way when installed in customer products. The information contained herein is provided without representation or warranty of any kind, whether express or implied, including, but not limited to, the suitability of IDT’s products for any particular purpose, an implied warranty of merchantability, or non-infringement of the intellectual property rights of others. This document is presented only as a guide and does not convey any license under intellectual property rights of IDT or any third parties. IDT’s products are not intended for use in applications involving extreme environmental conditions or in life support systems or similar devices where the failure or malfunction of an IDT product can be reasonably expected to significantly affect the health or safety of users. Anyone using an IDT product in such a manner does so at their own risk, absent an express, written agreement by IDT. Integrated Device Technology, IDT and the IDT logo are registered trademarks of IDT. Other trademarks and service marks used herein, including protected names, logos and designs, are the property of IDT or their respective third party owners. Copyright 2014. All rights reserved. IMPORTANT NOTICE AND DISCLAIMER RENESAS ELECTRONICS CORPORATION AND ITS SUBSIDIARIES (“RENESAS”) PROVIDES TECHNICAL SPECIFICATIONS AND RELIABILITY DATA (INCLUDING DATASHEETS), DESIGN RESOURCES (INCLUDING REFERENCE DESIGNS), APPLICATION OR OTHER DESIGN ADVICE, WEB TOOLS, SAFETY INFORMATION, AND OTHER RESOURCES “AS IS” AND WITH ALL FAULTS, AND DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY RIGHTS. These resources are intended for developers skilled in the art designing with Renesas products. You are solely responsible for (1) selecting the appropriate products for your application, (2) designing, validating, and testing your application, and (3) ensuring your application meets applicable standards, and any other safety, security, or other requirements. These resources are subject to change without notice. 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(Rev.1.0 Mar 2020) Corporate Headquarters Contact Information TOYOSU FORESIA, 3-2-24 Toyosu, Koto-ku, Tokyo 135-0061, Japan www.renesas.com For further information on a product, technology, the most up-to-date version of a document, or your nearest sales office, please visit: www.renesas.com/contact/ Trademarks Renesas and the Renesas logo are trademarks of Renesas Electronics Corporation. All trademarks and registered trademarks are the property of their respective owners. © 2020 Renesas Electronics Corporation. All rights reserved.
840002AGLFT 价格&库存

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