pi6c20800b features ? ? 4 lvpecl outputs ? ? up to 1.5ghz output frequency ? ? ultra low additive phase jitter: < 0.03 ps (typ) (diferential 156.25mhz, 12khz to 20mhz integration range) ? ? 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 block diagram p i 6 c 49115 0 4 - 0 3 1 pin confguration (20-pin tssop) description te PI6C4911504-03 is a high performance fanout bufer device which supports up to 1.5ghz frequency. PI6C4911504-03 fea - tures selectable single-ended clock or crystal inputs and trans - lates to four lvpecl outputs. the outputs are synchronized with input clock during asynchronous assertion /deassertion of clk_en pin. PI6C4911504-03 is ideal for crystal or lvcmos/ lvttl to lvpecl translation. typical clock translation and distribution applications are data-communications and telecom - munications. tis device is ideal for systems that need to distrib - ute low jitter clock signals to multiple destinations. applications ? ? networking systems including switches and routers ? ? high frequency backplane based computing and telecom platforms high performance lvpecl fanout buffer 1 2 3 clk 4 nc 5 clk_sel 6 xtal 2 7 v cc 8 xtal 1 q0 v cc q1 q2 n q2 nc 20 19 18 17 16 15 14 13 v ee clk_en n q1 n q0 q3 9nc 12 n q3 10v cc 11 PI6C4911504-03 rev. b 06/24/2013 13-0104
2 pin # pin name ty pe description 1 v ee power negative power supply 2 clk_en input pullup clock output enable/ disable 3 clk_sel input pulldown clock input source selection pin 4 clk input pulldown clock input 5 nc - no connect 6 xtal1 input xtal input 7 xtal2 output xtal output 8, 9 nc - no connect 10, 13, 18 v cc power power supply 11, 12 nq3 q3 output lvpecl output clock 14, 15 nq2 q2 output lvpecl output clock 16, 17 nq1 q1 output lvpecl output clock 19, 20 nq0 q0 output lvpecl output clock note: pullup and pulldown are for internal input resistors pinout table function table table 1: clock source input select function clk_sel function 0 clk is the selected reference input 1 xtal is the selected input table 2: clock output select function clk_en function 0 all outputs disabled. qx disabled low, nqx disabled high. 1 all outputs enabled. PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
3 power supply characteristics and operating conditions symbol parameter test condition min. ty p. max. units v cc supply voltage 3.135 3.465 v 2.375 2.625 v i dd power supply current all outputs unloaded 130 ma t a ambient operating temperature -40 85 c 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 (vcc) ......... -0.5 to +4.65v inputs (referenced to gnd) .............................. -0.5 to vcc+0.5v c lock output (referenced to gnd).................. -0.5 to vcc+0.5v s oldering temperature (max of 10 seconds) .................... +260oc latch up .................................................................................. 200ma 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. PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
4 dc electrical specifcations- lvpecl outputs parameter description conditions min. ty p. max. units v oh output high voltage v cc =3.3v 2.1 2.6 v v cc =2.5v 1.3 1.75 v ol output low voltage v cc =3.3v 1.0 1.8 v v cc =2.5v 0.4 0.8 dc electrical specifcations - lvcmos inputs symbol parameter conditions min. ty p. max. units v ih input high voltage v cc =3.3v 2.0 v cc +0.3 v v il input low voltage v cc =3.3v -0.3 0.8 v v ih input high voltage v cc =2.5v 1.7 v cc +0.3 v v il input low voltage v cc =2.5v -0.3 0.7 v i ih input high current clk, clk_sel 150 ua clk_en 10 ua i il input low current clk, clk_sel -10 ua clk_en -150 ua c in input capacitance 4 pf r pullup/ pulldown input pullup and pulldown resistor 50 k PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
5 parameter description conditions min. ty p. max. units f out clock output frequency lvpecl 1500 mhz t r output rise time from 20% to 80% 150 ps t f output fall time from 80% to 20% 150 ps t odc output duty cycle 48 52 % v pp output swing single-ended lvpecl outputs 400 mv t j bufer additive jitter rms 0.03 ps t sk output skew 4 outputs devices, outputs in same bank, with same load, at dut. 25 ps t pd propagation delay 1500 ps t od valid to hiz 200 ns t oe hiz to valid 200 ns notes: all parameters are measured with cmos input of 266mhz unless stated otherwise ac electrical specifcations C differential outputs PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
6 crystal characteristics parameters test conditions min. ty p. max. units mode of oscillation fundamental frequency 12 50 mhz equivalent series resis - tance (esr) 50 shunt capacitance 7 pf drive level 1 mw PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
7 propagation delay output skew clk t plh qn propagation delay t t f t phl v oh v ol t sk = t plh2 - t plh1 or t sk = t phl2 - t phl1 pd t r clk t plhx v oh v ol qn output skew t qn+1 t plhy t sk t phly t sk t phlx v oh v ol v oh v ol t sk = t plhy - t plhx or t sk = t phly - t phlx sk PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
8 confguration test load board termination for lvpecl PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
9 ordering information ordering number package code package description PI6C4911504-03lie l pb-free & green 20-contact tssop ? termal characteristics can be found on the company web site at www.pericom.com/packaging/ ? e = pb-free and green ? x sufx = tape/reel packaging mechanical: 20-contact tssop (l) 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 PI6C4911504-03 high performance lvpecl fanout bufer PI6C4911504-03 rev. b 06/24/2013 13-0104
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