asahi kasei emd corporation ms0668 - e - 02 feb - 08 - 1 - low power multic lock generator with vcxo AK8130B features 27mhz crystal input four frequency - selectable clock outputs one 27mhz - reference output selectable clock out frequencies: - 74.1758, 74.250 mhz - 25 .000mhz - 4.9152, 12.000, 48.000 mhz - 24.576, 33.333 mhz built - in vcxo - pull range: 110ppm (m in.) low jitter performance - period jitter: 150 psec (typ.) at clk1 - 4 - long term jitter : 160 psec (typ.) at refout low current consumption: 16.5ma (typ.) at 3.3v supply voltage: 3.0 ? 3.6v operating temperature r ange: - 20 to +85 package: 16 - pin ssop (lead free) description the ak81 30b is a member of akemd ? s low power multi clock generator family designed for a feature rich dtv or stb , requiring a ra nge of system clocks with high performance. the AK8130B gene rat es different frequency clocks f r o m a 27mhz crystal oscillator and provides them to up to four outputs configured by pin - setting. the on - chip vcxo accepts a voltage control input to allow the output clocks to vary by 1 1 0 ppm for synchronizing to the ext ernal clock system. b oth circuitries of vcxo and pll in AK8130B are derived f r o m akemd ? s long - term - experienced clock devic e technology , and enable clock output to perform low jitter and to operate with very low current consumption. the ak 8130b is ava ilab le in a 16 - pin ssop pa ckage. applications digital tv sets personal video recorders set - top - boxes multi media receivers block diagram AK8130B multi clock generator pll1 pll2 clk1 clk2 clk3 clk4 refout gnd pll1 s0 s1 s2 divide logic and output control vdd pll 3 voltage controlled crystal oscillator x 1 x 2 vin
AK8130B feb - 08 ms0668 - e - 02 - 2 - the brand name of akemd ? s ic ? s pin d escription s package: 16 - pin ssop (top view) pin no. pin name pin type description 1 x1 x o crystal connection , connect to 27.000mhz crystal 2 s0 in clock out frequency s elect 0 , see table 1 for the selection (1) 3 s1 in clock out frequency select 1 , see t able 1 for the selection (1) 4 vin in vcxo c ontrol voltage i nput 5 vdd1 -- power s upply 1 6 gnd1 -- ground 1 7 clk1 out clock output 1 , see table 1 for its selectable frequency 8 clk2 out clock output 2 , see table 1 for its selectable frequency (2) 9 ref out out reference c l ock o utput of vcxo based on 27.000mhz crystal 10 clk3 out clock output 3, see table 1 for its selectable frequency (2) 11 clk4 out clock output 4, see table 1 for its selectable frequency (2) 12 gnd2 -- ground 2 13 vdd2 -- power s upply 2 14 s2 in c lock out frequency select 1 , see t able 1 for the selection (1) 15 vdd3 -- power s upply 3 16 x2 x i crystal connection , connect to 27.000mhz crystal ( 1 ) internal pull up 360k w ( 2 ) internal pull down 510k w ordering information part number marking shipping pa ckaging package temperature range AK8130B 8130b tape and reel 16 - pin ssop - 20 to 85 1 6 15 14 13 12 11 10 9 x 1 s0 s1 vin vdd1 gnd1 clk1 clk2 x 2 vdd3 s2 vdd2 gnd2 clk4 clk3 refout 1 2 3 4 5 6 7 8
AK8130B ms0668 - e - 02 feb - 08 - 3 - the brand name of akemd ? s ic ? s absolute maximum rating over operating free - air temperature range unless otherwise noted (1) items s ymbol ratings unit s upply v oltage vdd - 0.3 to 4.6 v input v oltage vin vss - 0.3 to vdd+0.3 v input c urrent (any pins except supplies) i in 10 ma storage temperature tstg - 55 to 130 c note (1) stress beyond those listed under ? absolute m ax imum r atings ? may cause perman ent damage to the device. these are stress ra tings only. f unctional 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 reliabili ty. electrical par ameters 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 handlin g and in stallation procedures can cause damage . akemd recommends that this device is handled with appropriate precautions. recommended operation condition s parameter s ymbol conditions m in typ m ax unit operating t emperature ta - 2 0 85 c supply vol tage (1) vdd 3.0 3.3 3.6 v cp1 pin: clk1 - 4 15 pf output load capacitance cp2 pin: refout 25 pf note: (1) power to vdd1 , vdd2 and vdd3 require s to be supplied from a single source. a decoupling capacitor of 0.1 m f for power supply line should be install ed close to each vdd pin. esd sensitive device
AK8130B feb - 08 ms0668 - e - 02 - 4 - the brand name of akemd ? s ic ? s dc characteristics all specifications at vdd : over 3.0 to 3.6 v, ta: - 20 to +85 , 27 mh z crystal, unless otherwise noted parameter symbol conditions min typ max unit high l evel i nput v oltage v ih pin: s0 ,s 1,s2 0. 7 v dd v low l evel i nput v oltage v il pin: s0 ,s 1,s2 0. 3 vdd v input c urrent 1 i l 1 pin: s0 ,s 1,s2 - 2 0 +10 a input c urrent 2 i l 2 pin: vin - 3 + 3 a high level o utput v oltage v oh pin: clk1 - 4 , refout i oh = - 4 ma 0.8vdd v low level o utput voltage v ol pin: c lk1 - 4 , refout i o l = +4 ma 0. 2vdd v c urrent c onsumption i dd no load clock out selection by note (1 ) ta=25 16.5 ma (1) pin setting for output clock selection: [s2:s0] = hlh ac characteristics all specifications at vdd : over 3.0 to 3. 6 v, ta : over - 20 to +85 , 27m h z crystal, unless otherwise noted ( 1 ) measured with load capacitance of 15pf ( 2 ) measured with load capacitance of 25pf ( 3 ) pullable range depends on crystal characteristics , on - chip load capacitance, and stray capacity of pcb . min. 110 ppm is applied to akemd ? s authorized test condition. ( 4 ) 3 s in 1 000 sampling or more ( 5 ) 3 s in 5000 sampling or more ( 6 ) t ime to settle output into 20ppm of specified frequency parameter symbol conditions min typ max unit crystal c lock f requency 27.0000 mhz vcxo p ullable r ange (3) vin at over 0 to vdd v 110 ppm vcxo g ain g vcxo vin range at 1.5v1.0v 150 ppm/ v period j itt er (4) clk1 - 4 15 0 ps clk1 at 74.250mhz 1000 cycle delay 0.85 n s long te rm j itter (5) refout at 27.000mhz 1000 cycle delay 160 ps pin: clk1 - 4 (1) 45 50 55 % output c lock d uty cycle pin: refout (2) 40 50 60 % pin: clk1 - 4 (1) 1.5 ns output c lock r ise t ime t ri se pin: refout (2 ) 2.5 ns pin: clk1 - 4 (1) 1.5 ns output c lock f all ti me t fall pin: refout (2 ) 2.5 ns power - up t ime pin: clk1 - 4 (1) 1 ms output t ransition t ime (6) pin: clk1 at 74.25 or 74.175mhz 60 m s
AK8130B ms0668 - e - 02 feb - 08 - 5 - the brand name of akemd ? s ic ? s output clock frequency selection the ak 8130b generates a range of low - jitter and hi - accuracy clock frequencies with three built - in plls and provide s to up to four assigned outputs. a frequency selection at assigned output pin is configured by pin - setting of s0 (pin2 ) , s1 (pin3), and s2 (pin14). the selectable frequency is shown in table 1 . . table 1 : clock output frequency selection pin clock output frequency (mhz) s2 (pin 14) s1 (pin 3 ) s0 (pin 2 ) clk1 (pin 7 ) clk2 (pin 8 ) clk3 (pin 10 ) clk4 (pin 11 ) l l l 74.250 25.000 48.000 33.333 l l h 74.250 25.000 12.000 off l h l 74.1758 2 5.000 48.000 33.333 l h h 74.1758 25.000 12.000 off h l l 74.1758 25.000 off 33.333 h l h 74.1758 25.000 4.9152 off h h l 74.1758 25.000 4.9152 24.576 h h h 74.1758 off off off voltage control crystal oscillator (vcxo) the AK8130B has a voltage c ontrol crystal oscillator (vcxo) , featuring fine frequency tuning for 27mhz of primary clock frequency by external dc voltage control. t his tuning enable s output clock frequency to synchronize the exte rnal clock system. vin (pin 4) accepts dc voltage con trol from a processor or a system controller, and pulls the primary frequenc y of crystal to higher or lower. this pulling range is determined by crystal characteristic, on - chip load capacitor , and stray capacitance of pcb. the AK8130B is designed to rang e 110ppm of primary frequency in akemd ? s authorized condition, and the typical pulling profile is shown in figure 1 . for details about the condition and other specific crystal application case, refer the ak8130 family applicatio n note . 27.0mhz vcxo characteristics ndk at-41cd2 cl=12.0pf cext1=18.0pf,cext2=5.0pf) -150 -100 -50 0 50 100 150 0 0.5 1 1.5 2 2.5 3 3.5 vin(v) f ( p p m ) figure 1 : typical vcxo pulling profile
AK8130B feb - 08 ms0668 - e - 02 - 6 - the brand name of akemd ? s ic ? s typical connection diagram figure 2 : typical connection diagram c1, c2, c3: 0.1 m f c ext 1, c ext 2: depends on crystal characteristics. refer the sp ecification of the crystal. r1 1 , c1 1 : in case of interface by pwm. for r ight configuration , refer the specification of the applied processor. pcb layout consideration the AK8130B is a high - accuracy and low - jitter multi clock generator. for proper perfo rmances specified in this datasheet, careful pcb layout should be taken . the f ollowing s are layout guidelines based on the typical connection diagram shown in figure 2 p ower supply line ? AK8130B has three power supply pins (vdd1 - 3) which deliver power to internal circuitry segments. a 0.1 m f decoupling capacitor should be placed as close to each vdd pin as possible. ground pin connection ? AK8130B has two ground pins (gnd1 - 2 ) . these pin require co nnecting to pl ane ground which will eliminate any common impedance with other critical switching signal return. 0.1 m f decoupling capacitor s placed at vdd1, vdd2, and vdd3 should be grounded at close to the gnd1pin, the gnd2 pin, and the gnd2, respectively. crystal c onnection ? proper oscillation performance and pullable range are susceptible to stray or parasitic capacitors around cryst al. the wiring traces to a crystal form x1 (pin 1) and x2 (pin 14) have equal lengths with no via and as short in length as possible . these traces should be also located away from any traces with switching signal. 1:x 1 2:s0 3:s1 4: vin 5:vdd1 6:gnd1 7:clk1 8:clk2 x 2 :16 vdd3:15 s 2 :14 vdd2:13 gnd2:12 clk4:11 clk3:10 refout:9 ak813 0b +3.3v typ. gnd cext1 cext2 c1 c2 c3 ref clk in ctl out2 ctl out0 ctl out1 27.0mhz at cut crystal dc voltage ctl out (pwm) ieee1394 24.576mhz usb i/f 12.0/48.0 mhz ethernet i/f 25.0 mhz hdmi lvds i/f 74.25/74.1758 mhz r 11 c11 mpeg - ts decoder
AK8130B ms0668 - e - 02 feb - 08 - 7 - the brand name of akemd ? s ic ? s package information mechanical data 0. 1 0. 1 0 - 10 detail a 0.1 5 0. 1 0. 22 0. 1 0. 6 5 5.00typ a 1 8 9 16 16 pin ssop (unit: mm) 4 . 4 t y p 6 . 4 0 . 3 0 . 5 0 . 2 1 . 2 5 t y p marking a: #1 pin index b: part number c: date code (5 digits) d product family logo (1) (1) akm is the brand name of akemd ? s ic ? s. akm and the logo - - are the brand of akemd ? s ic ? s and identify that akemd continues to offer t he best choice for high performance mixed - signal solution under this brand. rohs complian ce all integrated circuits form asahi kasei emd corporation (akemd) assembled in ?lead - free? packages* are fully compliant with rohs. (*) rohs compliant products from akemd are identified with ?pb free? letter indication on product label posted on the anti - shield bag and boxes. 1 16 8 9 813 0b xxxxx akm a b c d
AK8130B feb - 08 ms0668 - e - 02 - 8 - the brand name of akemd ? s ic ? s 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 emd corporation (akemd) or authorized distributors as to curren t status of the products. l akemd assumes no liability for infringement of any patent, intellectual property, or other rights in the application or use of any 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 akemd products are neither intended nor authorized for use as crit ical components note1) in any safety, life support, or other hazard related device or system note2) , and akemd assumes no responsibility for such use, except for the use approved with the express written consent by representative director of akemd. as used h ere: 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 me et 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 akemd 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 akemd harmless from any and all claims ar ising from the use of said product in the absence of such notification.
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