AK8172A Single Clock Generator AK8172A Features Description The AK8172A is a single clock generator IC with an integrated PLL. It can generate a 72.36MHz clock from a 27MHz master clock input frequency. A high performance PLL locks to the master clock input, generating a low jitter, highly accurate clock output without an external crystal. Output Frequency Range: 72.36MHz Input Frequency: 27.000MHz Low Jitter Performance: 15 ps (Typ.) Period,1 Low Current Consumption: 3.6mA (Typ.) Output Load: 15pF (max.) Supply Voltage: VDD:1.7-1.9V Operating Temperature Range: -20 to +85 Package: 4-pin USON(lead free) Body size: 1.3 mm x 1.1mm Applications Digital still camera Block Diagram VDD CLKIN INPUT Buffer PLL OUTPUT Buffer CLKOUT VSS AK8172A Single Clock Generator MS1369-E-00 Mar-12 -1- AK8172A Pin Descriptions 4:VSS 1:VDD Package: 4-Pin USON (Top View) *lead-free 3:CLKIN 2:CLKOUT Pin No. Pin Name Pin Type 1 VDD -- 2 CLKOUT OUT 3 CLKIN IN Clock input (27MHz) 1.8V or 3.3V available. When CLKIN connects VDD or VSS, CLKOUT outputs low. 4 VSS -- Ground. Description Power Supply Clock output Output clock frequency is 72.36MHz. Ordering Information Part Number Marking Shipping Packaging Package Temperature Range AK8172AU 72A(AK8172A) Tape and Reel 4-pin USON -20 to 85 Mar-12 MS1369-E-00 -2- AK8172A Absolute Maximum Rating Over operating free-air temperature range unless otherwise noted Items Supply Voltage Input Voltage Symbol Ratings Unit VDD -0.3 to 4.6 V Vin VSS-0.3 to 3.6 V IIN 10 mA Tstg -55 to 130 C Input Current (any pins except supplies) Storage Temperature (1) 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 Supply Voltage (1) Symbol Min Ta -20 VDD 1.7 Input Clock Frequency Fin Input Clock Duty Cycle Findc Output Load Capacitance Conditions Cpl Typ Max Unit 85 C 1.8 1.9 V 27.0000 At VDDI/2 Pin: CLKOUT 30 50 MHz 70 % 15 pF (1) A decoupling capacitor of 0.1F for power supply line should be installed close to each VDD pin. MS1369-E-00 Mar-12 -3- AK8172A DC Characteristics All specifications at VDD: over 1.7 to 1.9V, Ta: -20 to +85, Input Frequency: 27MHz, unless otherwise noted Parameter Symbol High Level Input Voltage Low Level Input Voltage (1) (1) Input Current Conditions VIH Pin: CLKIN VIL Pin: CLKIN IL 1 Pin: CLKIN High Level Output Voltage VOH Low Level Output Voltage VOL Current Consumption IDD (1) VDDI=1.7-1.9V, 2.7-3.6V. MIN TYP MAX Unit 0.7VDDI Pin: CLKOUT IOH=-4mA V -1 0.3VDDI V +1 A 0.8VDD V Pin: CLKOUT 0.2VDD IOL=+4mA No load 3.6 V mA VDDI means XO operation voltage. AC Characteristics All specifications at VDD: over 1.7 to 1.9V, Ta: -20 to +85, Input Frequency: 27MHz, unless otherwise noted Parameter Symbol Output Clock Frequency Conditions Fo CLKIN=27MHz Fodc At VDD/2 trise Output Clock Fall Time (2) (3) Output Clock Duty Cycle Output Clock Rise Time (2) (3) (2) (3) (2) (3) Output Clock Jitter Output Lock Time (1) MIN TYP MAX 72.36 45 50 Unit MHz 55 % 0.2VDD to 0.8VDD 4.0 ns tfall 0.2VDD to 0.8VDD 4.0 ns Jit Period, 1 15 ps tlock Power-up 0.2 ms (1) The time that output reaches the target frequency within accuracy of 0.1% from the point that the power supply reaches VDD (2) With the load capacitance specified by the recommended operation conditions (3) Design value Mar-12 MS1369-E-00 -4- AK8172A Package Information Mechanical data (Units:mm) 0.580.02 0.03 1.300.05 1.100.05 S 0.05 0.250.05 M 0.250.05 0.5250.05 0.05 S .05 C0 0.50 Marking b 7 2 A YMA a: #1 Pin Index b: Part number c: Date code (3 digits) c a AKM is the brand name of AKM's IC's. AKM and the logo - - are the brand of AKM's IC's and identify that AKM continues to offer the best choice for high performance mixed-signal solution under this brand. MS1369-E-00 Mar-12 -5- AK8172A 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. IMPORTANT NOTICE 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. AKM assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of any information contained herein. 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. AKM products are neither intended nor authorized for use as critical components Note1) in any safety, life support, or other hazard related device or system Note2), 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. 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. Mar-12 MS1369-E-00 -6-