CS2300-02 1x, 2x, 4x, and 8x Clock Multiplier with Internal LCO Features Ordering Information Clock Multiplier / Jitter Reduction The CS2300-02 is available in a 10-pin MSOP package in Commercial (-10°C to +70°C) grade. Customer development kits are also available for custom device prototyping and device evaluation. Please see “Ordering Information” on page 2 for complete details. – Generates a Low Jitter 6 - 75 MHz Clock from a Jittery 750 kHz to 30 MHz Clock Source Internal LCO Reference Clock 128 Hz Loop Filter Bandwidth Selectable Multiplication Factors – 1x, 2x, 4x, and 8x Output Enable Pin Lock Indicator Minimal Board Space Required – No External Analog Loop-filter Components Pin-Out Diagram VD 1 10 GND CLK_OUT LOCK 2 9 3 8 4 7 CLK_IN 5 6 The CS2300-02 is an extremely versatile system clocking device that utilizes a programmable phase lock loop. The CS2300-02 is based on a hybrid analog-digital PLL architecture comprised of a unique combination of a Delta-Sigma Fractional-N Frequency Synthesizer and a Digital PLL. This architecture allows for generation of a low-jitter clock relative to an external noisy synchronization clock with frequencies as low as 750 kHz. The CS2300-02 is a CS2300-OTP device that has been preconfigured at the factory. There are three hardware configuration pins available for mode and feature selection. M1 0 0 1 1 M0 0 1 0 1 PLL_OUT 1x CLK_IN 2x CLK_IN 4x CLK_IN 8x CLK_IN OUT_EN CLK_OUT 0 Enabled 1 High Impedance FILTP LOCK 0.1 µF LCO FILTN M1 M0 Fractional-N Frequency Synthesizer M[1:0] 00=1x 01=2x 10=4x 11=8x CLK_IN Advance Product Information http://www.cirrus.com CLK_OUT N OUT_EN Output to Input Clock Ratio 750 kHz to 30 MHz Frequency Reference M1 OUT_EN FILTN FILTP Hardware Controls Settings General Description Ratio Selection M0 128 Hz BW Digital PLL & Fractional N Logic PLL Lock Indicator 6 MHz to 75 MHz PLL Output Output Enable/Disable VD 0.1 µF 1 µF 3.3 V GND This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. Copyright © Cirrus Logic, Inc. 2008 (All Rights Reserved) February '08 PS855A1 CS2300-02 1. PIN DESCRIPTIONS 2. SPECIFICATIONS Please see the CS2300-OTP datasheet for package information, device characteristics, and specifications except where noted due to specific programming options. Pin Name # Pin Description VD 1 Digital Power GND 2 Ground CLK_OUT 3 PLL Clock Output LOCK 4 Active Low PLL Lock Indicator CLK_IN 5 Clock Input FILTP FILTN 6 7 LCO Filter Connections OUT_EN 8 Active Low CLK_OUT Enable Input M1 M0 9 10 Mode Selection Inputs 3. OPERATIONAL INFORMATION See the CS2300-OTP datasheet for additional pin description information. Complete operational information can be found in the CS2300-OTP datasheet. Specific operational details dictated by the programming of the CS2300-02 are included below. • The PLL clock output is forced to 0 when the PLL is unlocked, both upon loss of the CLK_IN signal or briefly when switching mode pin configurations. • The minimum loop filter bandwidth once locked is 128 Hz. 4. CONFIGURATION INFORMATION The CS2300-02 has been factory pre-programmed with a unique configuration. The following table outlines the specific configuration profile which can be compared to the CS2300-OTP datasheet for detailed functional descriptions. OTP Modal and Global Configuration Parameters Form Mode 0 Mode 1 Ratio 0 (dec) 1 2 Ratio 0 (hex) 00:10:00:00 00:20:00:00 RModSel1 0 0 RModSel0 0 0 AuxOutSrc1 1 1 AuxOutSrc0 1 1 AutoRMod 0 0 Global Configuration Set ClkSkipEn AuxLockCfg ClkOutUnl LFRatioCfg M2Cfg2 0 0 0 1 0 ClkIn_BW2 ClkIn_BW1 ClkIn_BW0 1 1 1 Mode 2 4 00:40:00:00 0 0 1 1 0 M2Cfg1 0 Mode 3 8 00:80:00:00 0 0 1 1 0 M2Cfg0 0 5. ORDERING INFORMATION Product Description Package Pb-Free Grade Temp Range Container Rail CS2300-02 Clocking Device 10L-MSOP Yes Commercial -10° to +70°C CDK-2000 Evaluation Platform - Yes - - PS855A1 Order# CS230002-CZZ Tape and CS230002-CZZR Reel - CDK-2000-LCO 2 CS2300-02 6. REVISION HISTORY Release A1 Changes Initial Release Contacting Cirrus Logic Support For all product questions and inquiries, contact a Cirrus Logic Sales Representative. To find one nearest you, go to www.cirrus.com. IMPORTANT NOTICE “Advance” product information describes products that are in development and subject to development changes. Cirrus Logic, Inc. and its subsidiaries (“Cirrus”) believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided “AS IS” without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. 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CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER’S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER’S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS’ FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES. Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. PS855A1 3