PI6C48535-11CLIE

PI6C48535-11C 4 Output LVPECL Fanout Buffer Features Description ÎÎ4 LVPECL outputs The PI6C48535-11C is a fanout buffer device with embedded oscillator circuiit which supports up to 266MHz frequency. This device is ideal for systems that need to generate and distribute low jitter clock signals to multiple destinations. ÎÎUp to 266MHz output frequency ÎÎUltra low additive phase jitter: < 0.03 ps (typ) ÎÎTwo selectable inputs ÎÎLow delay from input to output (Tpd typ. < 1.5ns) Applications ÎÎ2.5V / 3.3V power supply ÎÎNetworking systems including switches and Routers ÎÎIndustrial temperature support ÎÎHigh frequency backplane based computing and telecom ÎÎTSSOP-20 package platforms Block Diagram SYNC_OE Pullup Pin Configuration (20-Pin TSSOP) D LE REF_IN XTAL_IN XTAL_OUT IN_SEL Pulldown OSC Pulldown GND 1 20 Q0+ Q0+ Q0- SYNC_OE 2 19 Q0- IN_SEL 3 18 VDD Q1+ Q1- REF_IN 4 17 Q1+ NC 5 16 Q1- XTAL_IN 6 15 Q2+ XTAL_OUT 7 14 Q2- NC 8 13 VDD NC 9 12 Q3+ 10 11 Q3- Q 0 1 Q2+ Q2- Q3+ Q3- VDD 15-0110 1 www.pericom.com PI6C48535-11C Rev A 8/31/15 PI6C48535-11C 4 Output LVPECL Fanout Buffer Pinout Table Pin # Pin Name 1 GND Power 2 SYNC_OE Input Pullup Synchronous clock enable. When High, clock outputs follow REF_IN. When low, Q+ outputs are forced low, Q- are forced high 3 IN_SEL Input Pulldown Clock input source selection pin 4 REF_IN Input Pulldown Clock input 5, 8, 9 NC - No connect Input Crystal Oscillator connection Power Power supply Output LVPECL output clock 3 Output LVPECL output clock 2 Output LVPECL output clock 1 Output LVPECL output clock 0 XTAL_IN 6, 7 XTAL_OUT 10, 13, 18 VDD Q3+ 11, 12 Q3Q2+ 14, 15 Q2Q1+ 16, 17 Q1Q0+ 19, 20 Q0- Type Description Ground Function Table Table 1: Clock source input select function IN_SEL Function 0 REF_IN is the selected reference input 1 XTAL_IN is the selected reference input Table 2: SYNC_OE select function SYNC_OE Function 0 All outputs disabled. Q+ disabled low, Q- disabled High. 1 All outputs enabled. Pin Characteristics Symbol R PULLUP R PULLDOWN 15-0110 Parameter Min Typ Max Units Input Pullup Resistor 51 kΩ Input Pulldown Resistor 51 kΩ 2 www.pericom.com PI6C48535-11C Rev A 8/31/15 PI6C48535-11C 4 Output LVPECL Fanout Buffer Maximum Ratings (Above which the useful life may be impaired. For user guidelines, not tested) Note: Storage temperature....................................................-55 to +150ºC Stresses greater than those listed under MAXIMUM RATINGS may cause permanent damage to the device. This 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 specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. Supply Voltage to Ground Potential (VDD)............ -0.5 to +4.65V Inputs (Referenced to GND).............................. -0.5 to VDD+0.5V Clock Output (Referenced to GND)................. -0.5 to VDD+0.5V Latch up...................................................................................200mA ESD Protection (Input)................................... 2000 V min (HBM) Power Supply Characteristics and Operating Conditions (TA = -40 to 85 °C ) Symbol Parameter VDD Supply Voltage IDD Power Supply Current Test Condition Min. Typ. Max. Units 3.135 3.3 3.465 V 2.375 2.5 2.625 V 85 mA Max. Units LVCMOS/ LVTTL DC Characteristics (TA = -40 to 85 °C ) Symbol Parameter VIH Input High Voltage VIL Input Low Voltage SYNC_OE IIH Input High Current IN_SEL SYNC_OE IIL Input Low Current IN_SEL 15-0110 Test Condition Min. VDD = VIN = 3.465V 2 VDD+0.3 V VDD = VIN = 2.625V 1.6 VDD+0.3 V VDD = VIN = 3.465V -0.3 0.8 V VDD = VIN = 2.625V -0.3 0.6 V VDD = VIN = 3.465V 5 µA VDD = VIN = 2.625V 5 µA VDD = VIN = 3.465V 150 µA VDD = VIN = 2.625V 150 µA VDD = VIN = 3.465V -150 VDD = VIN = 2.625V -150 VDD = VIN = 3.465V -5 VDD = VIN = 2.625V -5 3 www.pericom.com Typ. µA µA PI6C48535-11C Rev A 8/31/15 PI6C48535-11C 4 Output LVPECL Fanout Buffer DC Electrical Specifications- LVPECL Outputs (TA = -40 to 85 °C ) Parameter Description Conditions Min. Typ. Max. Units VOH Output High voltage VDD -1.4 VDD -0.9 V VOL Output Low voltage VDD -2.0 VDD -1.7 V VSWING Peak to Peak Output Voltage Swing 0.6 1.0 V Max. Units 266 MHz AC Electrical Specifications – Differential Outputs (TA = -40 to 85 °C ) Parameter Description Conditions Min. Typ. FOUT Clock output frequency LVPECL Tr Output rise time From 20% to 80% 300 700 ps Tf Output fall time From 80% to 20% 300 700 ps TODC Output duty cycle VPP Output swing Single-ended Taddjitter Buffer additive jitter RMS TSK Output Skew TPD Propagation Delay 1450 TOD Valid to HiZ 200 ns TOE HiZ to valid 200 ns TP2P Skew Part to Part Skew 48 LVPECL outputs 52 % 400 0.03 ps 4 outputs devices, outputs in same tank, with same load, at DUT. 30 ps 1600 ps TBD 1 ns Notes: 1. This parameter is guaranteed by design Crystal Characteristics Parameter Test Condition Min. Max. Units 50 MHz Equivalent Series Resistance (ESR) 50 Ω Shunt Capacitance 7 pF Drive Level 1 mW Mode of Oscillation Fundamental Frequency 15-0110 Typ. 12 4 www.pericom.com PI6C48535-11C Rev A 8/31/15 PI6C48535-11C 4 Output LVPECL Fanout Buffer Configuration Test Load Board Termination for LVPECL VDD ZO = 50Ω TLA L = 0 ~ 10in Device 100Ω TLA ZO = 50Ω 150Ω 150Ω Thermal Information Symbol Description QJA Junction-to-ambient thermal resistance 84.0 OC/W QJC Junction-to-case thermal resistance 17.0 OC/W 15-0110 5 www.pericom.com PI6C48535-11C Rev A 8/31/15 PI6C48535-11C 4 Output LVPECL Fanout Buffer Packaging Mechanical: 20-Contact TSSOP (L) Ordering Information Ordering Number Package Code Package Description Operating Temperature PI6C48535-11CLIE L Pb-free & Green 20-Contact TSSOP -40 to 85 °C PI6C48535-11CLIEX L Pb-free & Green 20-Contact TSSOP, Tape and Reel -40 to 85 °C • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • E = Pb-free and Green • X suffix = Tape/Reel 15-0110 6 www.pericom.com PI6C48535-11C Rev A 8/31/15