AK8125AE Spread Spectrum Clock Generator AK8125AE Features Description Input Frequency: - Crystal: 6.1-36MHz - External: 6.1- 49.92MHz Configurable Spread Spectrum Modulation: The AK8125A is a spread spectrum clock generator designed for general purpose EMI elimination. The device uses the AKM’s original spread spectrum profile to provide excellent EMI reduction effect without degradation of system performance. The device is available in a very small 10-pin TMSOP package, and its pin configuration offers simple PCB layout. Modulation Ratio: -0.25%,-0.5%,-1.5%, -3.0% ±0.125%,±0.25%,±0.75%, ±1.5% - Modulation Frequency Around 30KHz Low Jitter Performance: - Applications 300 psec (peak) Cycle to Cycle Jitter 600 psec(p-p non-SS) long term Low Current Consumption: 6.5mA typ. Supply Voltage: 3.0 – 3.6V Operating Temperature Range: -20 to +85℃ Package: 10-pin TMSOP Lead Free & Halogen Free HDTV, STB, MFP, etc. VDD XIN Crystal OSC PLL CLKOUT XOUT SS_SEL1 Control SS_SEL0 Logic OUTMPX F_SEL0 Vref F_SEL1 VSS MS1099-E-03 Aug-11 -1- AK8125AE Pin Descriptions XIN F_SEL0 VDD SS_SEL0 OUTMPX Pin No. 9 8 7 3 4 5 6 Pin Name Package: 10-Pin TMSOP (Top View) XOUT F_SEL1 VSS SS_SEL1 CLKOUT 10 1 2 Pin Type Description 1 XIN IN Crystal connection pin or Reference clock input pin 2 F_SEL0 IN Frequency range Select Pin0 3 VDD PWR 4 SS_SEL0 IN Spread Spectrum Modulation Ratio Select Pin0 (1) 5 OUTMPX IN x1, x2, x4 Select pin (1) 6 CLKOUT OUT 7 SS_SEL1 IN 8 VSS PWR 9 F_SEL1 IN 10 XOUT OUT (1) Power Supply Clock Output (1) Spread Spectrum Modulation Ratio Select Pin1 Ground (1) Frequency range Select Pin1 Crystal connection pin. clock is used. (1) 3-Level Input for Low/Mid/Hi. Leave this pin floating when the external Biased at 1/2 of VDD with pull-up/down resistors of 150kW (Typ.). Ordering Information Part Number Marking Shipping Packaging Package Temperature Range AK8125AE 125AE Tape and Reel 10-pin TMSOP -20 to 85 ℃ Aug-11 MS1099-E-03 -2- AK8125AE Absolute Maximum Rating Over operating free-air temperature range unless otherwise noted Items Symbol Supply Voltage (1) Ratings Unit V VDD -0.3 to 4.6 Input Voltage Vin VSS-0.3 to VDD+0.3 V Input Current (any pins except supplies) IIN ±10 mA Tstg -55 to 130 °C Storage Temperature 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. ESD Sensitive Device 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. Recommended Operation Conditions Parameter Operating Temperature Symbol Conditions Min Ta -20 VDD 3.0 Input Clock Frequency Fin 6.1 Output Load Capacitance Cpl Supply Voltage Typ Max Unit 85 °C 3.3 3.6 V 49.92 MHz 15 pF Note: (1) A decoupling capacitor of 0.1mF for power supply line should be installed close to VDD pin. MS1099-E-03 Aug-11 -3- AK8125AE DC Characteristics All specifications at VDD: over 3.0 to 3.6V, Ta: -20 to 85℃, Output Frequency: over specified frequency, unless otherwise noted Parameter Conditions Symbol MIN TYP MAX Unit High Level Input Voltage VIH 0.85VDD Middle Level Input Voltage VIM 0.35VDD 0.50VDD 0.65VDD V Low Level Input Voltage VIL 0.15VDD V Input Current IL +40 μA Pin: OUTMPX SS_SEL[1:0], F_SEL[1:0] High Level Output Voltage VOH Low Level Output Voltage VOL Current Consumption IDD Pin: CLKOUT IOH=-6mA V -40 0.8VDD V Pin: CLKOUT IOL=+6mA No load, SS_SEL[1:0]=H/H 6.5 OUTMPX=M 0.2VDD V 10 mA AC Characteristics All specifications at VDD: over 3.0 to 3.6V, Ta:-20 to 85℃, Output Frequency: over specified frequency, unless otherwise noted Parameter Pins Conditions MIN MAX Unit 6.1 36 MHz 70 % Crystal Oscillator Frequency XIN XOUT Input Clock duty cycle XIN 30 Input Clock Swing XIN 1 Output Lock Time Settling Time (1) (2) CLKOUT AT cut Crystal Power-up CLKOUT Vpp 1 5 ms 1 2 ms 50 55 % Output Clock Duty Cycle CLKOUT Output Clock Rise Time CLKOUT 0.2VDD to 0.8VDD 1.5 3.0 ns Output Clock Fall Time CLKOUT 0.8VDD to 0.2 VDD 1.5 3.0 ns Cycle to cycle jitter CLKOUT Long term jitter CLKOUT 45 TYP See table 1 Cpl=15pF 1000 cycle delay Cpl=15pF,p-p SS_SEL[1:0]=”M,M” ps 600 ps 1. The time that output reaches the target frequency within accuracy of ±0.1% from the point that the power supply reaches VDD 2. The time that output reaches the target frequency within a ccuracy of ±0.1% after SS_SEL[1:0] are affected. Aug-11 MS1099-E-03 -4- AK8125AE Table 1. Cycle to Cycle Jitter(Peak, Typ./Max.) Output Frequency Modulation Ratio Down -0.25%,-0.5% Down -1.5%,-3.0% Center±0.125%,±0.25% Center ±0.75%,±1.5% 700ps/1000ps 150ps/450ps 400ps/700ps 200ps/500ps SS Off 6.1MHz≦fout≦9.36MHz 9.36MHz<fout≦15.6MHz 15.6MHz<fout≦24.96MHz 24.96MHz<fout≦98.98MHz 100ps/300ps Definition of Jitters 1. Cycle to cycle jitter: The variation in cycle time of a single between adjacent cycles, over a random sample of adjacent cycle pairs. 1/2VDD CLKOUT tcycle n CCJ = | tcyclen - tcycle n+1 tcyclen+1 | : where tcycle n and tcyclen+1 are any two adjacent cycles measured on controlled edges. 2. Long term jitter: 1000Cycles after oscilloscope trigger. LTJ CLKOUT Vref 1000 cycles MS1099-E-03 Aug-11 -5- AK8125AE Frequency Characteristics All specifications at VDD: over 3.0 to 3.6V, Ta:-20 to 85℃, Output Frequency: over specified frequency, unless otherwise noted Term Input range Pins XIN MIN 6.10 7.80 9.36 12.48 15.60 18.72 TYP 24.96 31.20 37.44 Modulation Frequency Output CKOUT Modulation CKOUT Average Modulation Frequency ( ) Offset *3 @Down Spread MAX 8.32 10.40 12.48 16.64 20.80 24.96 33.28 41.60 49.92 CKOUT CKOUT Unit MHz kHz - 1 2 4 -0.25 -0.5 -1.5 -3.0 OFF ±0.125 ±0.25 - - ±0.75 ±1.5 -0.18 -0.36 -0.90 -1.68 -0.19 -0.38 -0.91 -1.68 -0.20 -0.36 - % % -0.92 -1.68 (*1) Pin Setting F_SEL[1:0]=LL F_SEL[1:0]=LM F_SEL[1:0]=LH F_SEL[1:0]=ML F_SEL[1:0]=MM F_SEL[1:0]=MH F_SEL[1:0]=HL F_SEL[1:0]=HM F_SEL[1:0]=HH (*1) OUTMPX=L OUTMPX=M OUTMPX=H, (*2) SS_SEL[1:0]=LL SS_SEL[1:0]=LM SS_SEL[1:0]=LH SS_SEL[1:0]=ML SS_SEL[1:0]=MM SS_SEL[1:0]=MH SS_SEL[1:0]=HL SS_SEL[1:0]=HM SS_SEL[1:0]=HH SS_SEL[1:0]=LL, F_SEL0=L SS_SEL[1:0]=LM, F_SEL0=L SS_SEL[1:0]=LH, F_SEL0=L SS_SEL[1:0]=ML, F_SEL0=L SS_SEL[1:0]=LL, F_SEL0=M SS_SEL[1:0]=LM, F_SEL0=M SS_SEL[1:0]=LH, F_SEL0=M SS_SEL[1:0]=ML, F_SEL0=M SS_SEL[1:0]=LL, F_SEL0=H SS_SEL[1:0]=LM, F_SEL0=H SS_SEL[1:0]=LH, F_SEL0=H SS_SEL[1:0]=ML, F_SEL0=H Modulation frequency is determined by input frequency range. Following equations provide the theoretical modulation frequency of AK8125AE. Fmod = 40kHz x (Input Frequency / Max Range Frequency) Example) @10MHz Input: (*2) (*3) Fmod = 40kHz x (10.0MHz/10.4MHz) = 38.46kHz Please use 4x setting under output frequency 99.84MHz or less. The average output frequency in the mode of down spread modulation is intentionally offset against the ideal average frequency. Aug-11 MS1099-E-03 -6- AK8125AE Spread Spectrum Modulation Selection The modulation ration are selectable by pin setting of SS_SEL[1:0] (Pin 7 and 4), as defined in Table1. Table 2: Modulation Ratio Setting SS_SEL[1:0] 1 0 L L L M L H M L M M M H H L H M H H Spread Mode -0.25% -0.5% -1.5% -3.0% SS Off ±0.125% ±0.25% ±0.75% ±1.5% Operation frequency Range Selection The operation frequency range are selectable by pin setting of F_SEL[1:0] (Pin 9 and 2), as defined in Table3. Table 3: Operation Frequency Table F_SEL[1:0] Input Range Output Range (OUTMPX=”L) Output Range (OUTMPX=”M”) Output Range (OUTMPX=”H”) 1 L 0 L 6.1 - 8.32MHz 6.1 - 8.32MHz 12.2 – 16.64MHz 24.4 – 33.28MHz L M 7.80 - 10.40MHz 7.80 - 10.40MHz 15.60 - 20.80MHz 31.20 – 41.60MHz L H 9.36 - 12.48MHz 9.36 - 12.48MHz 18.72 – 24.96MHz 37.44 – 49.92MHz M L 12.48 - 16.64MHz 12.48 - 16.64MHz 24.96 – 33.28MHz 49.92 – 66.56MHz M M 15.60 - 20.80MHz 15.60 - 20.80MHz 31.20 – 41.60MHz 62.40 – 83.20MHz M H 18.72 - 24.96MHz 18.72 - 24.96MHz 37.44 – 49.92MHz 74.88 – 99.84MHz H L 24.96 - 33.28MHz 24.96 - 33.28MHz 49.92 – 66.56MHz - H M 31.20 - 41.60MHz 31.20 - 41.60MHz 62.40 – 83.20MHz - H H 37.44 - 49.92MHz 37.44 - 49.92MHz 74.88 – 99.84MHz - MS1099-E-03 Aug-11 -7- AK8125AE Package Information · Mechanical data 0 ~ 10° 2.9 ± 0.2 +0.1 0.127 -0.05 5 0.2 ± 0.1 +0.1 0.1 -0.05 1.0 MAX 0.5 0.55 ± 0.2 2.8 ± 0.2 1 4.0 ± 0.2 6 10 Unit: mm · Marking 10 b 6 d c AKM AKM 125AE 8126 XXX XXX a 1 a: b: c: d #1 Pin Index Part number Date code (3 digits) (1) Product Family Logo 5 · RoHS Compliance All integrated circuits form Asahi Kasei Microdevices Corporation (AKM) assembled in “lead-free” packages* are fully compliant with RoHS. (*) RoHS compliant products from AKM are identified with “Pb free” letter indication on product label posted on the anti-shield bag and boxes. Aug-11 MS1099-E-03 -8- AK8125AE IMPORTANT NOTICE l These products and their specifications are subject to change without notice. When you consider any use or application of these products, please make inquiries the sales office of Asahi Kasei Microdevices Corporation (AKM) or authorized distributors as to current status of the products. l Descriptions of external circuits, application circuits, software and other related information contained in this document are provided only to illustrate the operation and application examples of the semiconductor products. You are fully responsible for the incorporation of these external circuits, application circuits, software and other related information in the design of your equipments. AKM assumes no responsibility for any losses incurred by you or third parties arising from the use of these information herein. AKM assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of such information contained herein. l Any export of these products, or devices or systems containing them, may require an export license or other official approval under the law and regulations of the country of export pertaining to customs and tariffs, currency exchange, or strategic materials. l AKM products are neither intended nor authorized for use as critical componentsNote1) in any safety, life support, or other hazard related device or systemNote2), and AKM assumes no responsibility for such use, except for the use approved with the express written consent by Representative Director of AKM. As used here: Note1) A critical component is one whose failure to function or perform may reasonably be expected to result, whether directly or indirectly, in the loss of the safety or effectiveness of the device or system containing it, and which must therefore meet very high standards of performance and reliability. Note2) A hazard related device or system is one designed or intended for life support or maintenance of safety or for applications in medicine, aerospace, nuclear energy, or other fields, in which its failure to function or perform may reasonably be expected to result in loss of life or in significant injury or damage to person or property. l It is the responsibility of the buyer or distributor of AKM products, who distributes, disposes of, or otherwise places the product with a third party, to notify such third party in advance of the above content and conditions, and the buyer or distributor agrees to assume any and all responsibility and liability for and hold AKM harmless from any and all claims arising from the use of said product in the absence of such notification. MS1099-E-03 Aug-11 -9-