pi6c20800b features ? ? 2 hcsl outputs ? ? up to 250mhz output frequency ? ? ultra low additive phase jitter: < 0.1 ps (typ) ? ? two selectable inputs ? ? low delay from input to output (tpd typ. 1.5ns) ? ? 2.5v / 3.3v power supply ? ? industrial temperature support ? ? tssop-16 package pi6c4931502-04 block diagram 1 pin confguration (16-pin tssop) description te pi6c4931502-04 is a high performance fanout bufer device which supports up to 250mhz frequency. tis device is ideal for systems that need to distribute low jitter clock signals to multiple destinations. applications ? ? networking systems including switches and routers ? ? high frequency backplane based computing and telecom platforms high performance hcsl fanout buffer 1 2 3 clk0 4 nclk0 5 clk_sel 6 nc 7 v dd 8 clk1 gnd q0 nq0 nq1 v dd nc 16 15 14 13 12 11 10 9 clk_en q1 v dd iref q0 pullup clk_sel iref clk1 clk0 nclk0 d le q clk_en pulldown pullup/ pulldown pulldown 0 1 pulldown nq0 q1 nq1 pi6c4931502-04 rev b 04/10/2014 14-0049
2 2 pin # pin name ty pe description 1 clk_en input pull up clock output enable/ disable 2 clk_sel input pulldown clock input source selection pin 3, 4 clk0 nclk0 input pull up pull up/ pull - down diferential clock input 5 clk1 input pulldown single ended clock input 6, 7 nc - no connect 8 iref output external resistor connection to set diferential out - put current. typically 475 9, 10, 15 v dd power power supply 11, 12 q1 nq1 output hcsl output clock 13, 14 q0 nq0 output hcsl output clock 16 gnd power ground pinout table function table table 1: input select function clk_sel function 0 clk0, nclk0 1 clk1 table 2: output enable function clk_en outputs q0:q1 nq0:nq1 0 disabled; low disabled; high 1 enabled enabled pi6c4931502-04 high performance hcsl fanout bufer pi6c4931502-04 rev b 04/10/2014 14-0049
3 3 maximum ratings (above which the useful life may be impaired. for user guidelines, not tested) storage temperature ................................................... - 55 to +150oc s upply voltage to ground potential (v dd ) ............. - 0.5 to +4.6v inputs (referenced to gnd) ............................. -0.5 to v dd +0.5v c lock output (referenced to gnd)................. -0.5 to v dd +0.5v s oldering temperature (max of 10 seconds) .................... +260oc note: stresses greater than those listed under maximum ratings may cause permanent damage to the device. tis is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specifcation is not implied. exposure to absolute maximum rating conditions for extended periods may afect reliability. dc electrical specifcations - differential inputs i ih input high current: clk0, nclk0 input = v dd 200 ua i il input low current: nclk0 -200 ua input low current: clk0 -10 ua c in input capacitance 4 pf v ih input high voltage v dd +0.3 v v il input low voltage -0.3 v v id input diferential amplitude pk-pk 150 1300 mv v cm common mode input voltage gnd + 0.5 v dd -0.85 v power supply characteristics and operating conditions v dd core supply voltage 2.97 3.63 v 2.375 2.625 v i dd power supply current v dd = 3.3v, unloaded 60 ma v dd = 2.5v, unloaded 60 t a ambient operating temperature -40 85 c pi6c4931502-04 high performance hcsl fanout bufer pi6c4931502-04 rev b 04/10/2014 14-0049
4 4 dc electrical specifcations - lvcmos inputs symbol parameter conditions min. ty p. max. units i ih input high current clk1, clk_sel input = v dd 200 ua clk_en 20 ua i il input low current clk1, clk_sel input = gnd -10 ua clk_en -200 ua v ih input high voltage v dd =3.3v 2.0 3.765 v v il input low voltage v dd =3.3v -0.3 0.8 v v ih input high voltage v dd =2.5v 1.7 2.8 v v il input low voltage v dd =2.5v -0.3 0.7 v dc electrical specifcations C hcsl outputs parameter description conditions min. ty p. max. units v oh output high voltage 520 800 mv v ol output low voltage 0 150 mv pi6c4931502-04 high performance hcsl fanout bufer pi6c4931502-04 rev b 04/10/2014 14-0049
5 5 ac electrical specifcations C differential outputs parameter description conditions min. ty p. max. units f out output frequency 250 mhz t r output rise time from 20% to 80% 175 700 ps t f output fall time from 80% to 20% 175 700 ps t odc output duty cycle 47 53 % t j bufer additive jitter rms 0.1 ps v max absolute maximum output volt - age 1150 mv v min absolute minimum output volt - age -300 mv v cross absolute crossing voltage hcsl 250 550 mv d v cross total variation of crossing voltage hcsl 140 mv t sk output skew 40 100 ps t pd propagation delay 1500 ps t p2p skew part to part skew 1 600 ps notes: 1. tis parameter is guaranteed by design confguration test load board termination for hcsl outputs rs 33 5% rs 33 5% rp 49.9 1% 475 1% rp 49.9 1% 2pf 5% 2pf 5% clock# clock tla tlb pi6c4931502-04 pi6c4931502-04 high performance hcsl fanout bufer pi6c4931502-04 rev b 04/10/2014 14-0049
6 6 ordering information (1-3) ordering code package code package description PI6C4931502-04LIE l 16-pin, pb-free & green, tssop, (l16) notes: 1. thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. e = pb-free and green 3. adding an x suffx = tape/reel note: ? for latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php date: 05/03/12 description: 16-pin, 173mil wide tssop package code: l document control #: pd-1310 revision: f notes: 1. refer jedec mo-153f/ab 2. controlling dimensions in millimeters 3. package outline exclusive of mold flash and metal burr 12-0372 pi6c4931502-04 high performance hcsl fanout bufer pi6c4931502-04 rev b 04/10/2014 14-0049
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