pi6c20800b features ? 4 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-20 package PI6C4931504-04 block diagram preliminary information - company confidential 1 PI6C4931504-04 rev a 08/14/2012 pin confguration (20-pin tssop) description te PI6C4931504-04 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 q0 v dd q1 q2 nq2 nc 20 19 18 17 16 15 14 13 gnd clk_en nq1 nq0 q3 9iref 12 nq3 10v dd 11 q0 pullup clk_sel iref clk1 clk0 nclk0 d le q clk_en pulldown pullup/ pulldown pulldown 0 1 pulldown nq0 q1 nq1 q2 nq2 q3 nq3 12-0251
PI6C4931504-04 high performance hcsl fanout bufer preliminary information - company confidential 2 PI6C4931504-04 rev a 08/14/2012 2 pin # pin name type description 1 gnd power ground 2 clk_en input clock output enable/ disable 3 clk_sel input clock input source selection pin 4, 5 clk0 nclk0 input clock input 6 clk1 input clock input 7, 8 nc - no connect 9 iref power external resistor connection to set diferential out - put current 10, 13, 18 v dd power power supply 11, 12 nq3 q3 output hcsl output clock 14, 15 nq2 q2 output hcsl output clock 16, 17 nq1 q1 output hcsl output clock 19, 20 nq0 q0 output hcsl output clock 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:q4 nq0:nq4 0 disabled; low disabled; high 1 enabled enabled 12-0251
PI6C4931504-04 high performance hcsl fanout bufer preliminary information - company confidential 3 PI6C4931504-04 rev a 08/14/2012 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 symbol parameter min. typ. max. units 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 model input voltage gnd + 0.5 v dd -0.85 v power supply characteristics and operating conditions symbol parameter test condition min. typ. max. units 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 70 ma v dd = 2.5v, unloaded 70 t a ambient operating temperature -40 85 c 12-0251
PI6C4931504-04 high performance hcsl fanout bufer preliminary information - company confidential 4 PI6C4931504-04 rev a 08/14/2012 4 dc electrical specifcations - lvcmos inputs symbol parameter conditions min. typ. 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. typ. max. units v oh output high voltage v dd =3.3v 520 800 mv v ol output low voltage v dd =3.3v 0 150 mv 12-0251
PI6C4931504-04 high performance hcsl fanout bufer preliminary information - company confidential 5 PI6C4931504-04 rev a 08/14/2012 5 ac electrical specifcations C differential outputs parameter description conditions min. typ. 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 48 52 % 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 PI6C4931504-04 12-0251
PI6C4931504-04 high performance hcsl fanout bufer preliminary information - company confidential 6 PI6C4931504-04 rev a 08/14/2012 6 ordering information (1-3) ordering code package code package description PI6C4931504-04lie l 20-pin, pb-free & green, tssop, (l20) 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: 20-pin, 173mil wide tssop package code: l document control #: pd-1311 revision: f notes: 1. refer jedec mo-153f/ac 2. controlling dimensions in millimeters 3. package outline exclusive of mold flash and metal burr 12-0373 12-0251
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