PI6C4853111 2.5V/3.3V 500MHz Low Skew 1-to-10 Differential to LVPECL Fanout Buffer with 2 to 1 Differential Clock Input Mux Features Description • • • • The PI6C4853111 is a high-performance low-skew 1-to-10 LVPECL fanout buffer. The PI6C4853111 features two selectable differential clock inputs and translates to ten LVPECL outputs. The CLK inputs accept LVPECL, LVDS, CML and SSTL signals. Block Diagram Pin Configuration Q0 /Q0 Q1 /Q1 Q5 /Q5 Q6 /Q6 31 32 24 23 22 21 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 Q7 /Q7 7 8 vCCO Q7 /Q7 Q8 /Q8 Q9 10 /Q9 9 vCCO VEE Q4 /Q4 25 26 27 28 29 30 /CLK1 CLK_SEL 1 VCCO /Q2 Q2 /Q1 Q1 /Q0 Q0 vCCO NC CLK1 /CLK1 0 Q3 /Q3 VCC CLK0 /CLK0 Q3 /Q3 Q4 /Q4 Q5 /Q5 Q6 /Q6 Q2 /Q2 CLK1 • Operating Temperature: -40oC to 85oC Core Power supply: 3.3V+/-10%, Output Power supply: 2.5V ±5% & 3.3V ±10% Packaging (Pb-free & Green): — 32-pin TQFP (FA) CLK0 • • /CLK0 • PI6C4853111 is ideal for clock distribution applications demanding performance and repeatability. CLK_SEL • Pin-to-pin compatible to ICS853111-02 FMAX < 500MHz 10 pairs of differential LVPECL outputs Selectable differential input pairs with single ended input option Input CLK accepts: LVPECL, LVDS, CML, SSTL input level Output skew: 35ps (typ) Q8 /Q8 Q9 /Q9 06-0052 1 PS8805B 04/18/06 PI6C4853111 2.5V/3.3V 500MHz Low Skew 1-to-10 Differential to LVPECL Fanout Buffer w/ 2 to 1 Differential Clock Input Mux Pin Description(1) Name Pin # Type Description VEE 8 P Connect to negative power supply CLK_SEL 2 I Clock select input. When high, selects CLK1 input. When low, selects CLK0 input. LVCMOS/LVTTL level with 50kΩ pull down. CLK0 3 I Differential LVPECL clock input with 75kΩ pull-down /CLK0 4 I Inverting differential LVPECL clock input. Defaults to VCC/2 if left floating. CLK1 6 I Differential LVPECL clock input with 75kΩ pull-down /CLK1 7 I Inverting differential LVPECL clock input. Defaults to VCC/2 if left floating. NC 5 VCCO 9,16, 25,32 P Output Power pin VCC 1 P Core Power Supply Q3, /Q3 24,23 O Differential output pair, LVPECL interface level. Q2, /Q2 27,26 O Differential output pair, LVPECL interface level. Q1, /Q1 29,28 O Differential output pair, LVPECL interface level. Q0, /Q0 31,30 O Differential output pair, LVPECL interface level. Q9, /Q9 11,10 O Differential output pair, LVPECL interface level. Q8, /Q8 13,12 O Differential output pair, LVPECL interface level. Q7, /Q7 15,14 O Differential output pair, LVPECL interface level. Q6, /Q6 18,17 O Differential output pair, LVPECL interface level. Q5, /Q5 20,19 O Differential output pair, LVPECL interface level. Q4, /Q4 22,21 O Differential output pair, LVPECL interface level. No Connect Note: 1. I = Input, O = Output, P = Power supply connection. Pin Characteristics Symbol Parameter R Input Pullup/Pulldown Resistance Conditions Min. Typ. Max. Units 50 kΩ Control Input Function Table Inputs Outputs 0 CLK0 1 CLK1 06-0052 2 PS8805B 04/18/06 PI6C4853111 2.5V/3.3V 500MHz Low Skew 1-to-10 Differential to LVPECL Fanout Buffer w/ 2 to 1 Differential Clock Input Mux Absolute Maximum Ratings(1) Symbol Parameter Conditions Min VCC Supply voltage Referenced to GND VIN Input voltage Referenced to GND IOUT Surge Current Typ -0.5 Max Units 4.6 V VCC+0.5V V 100 mA TSTG Storage temperature -65 150 oC VBB Smk/source Current, IBB -0.5 +0.5 ӨjA Package Thermal Resistance 86 mA ˚C/Watt ӨjC Package Thermal Resistance 12.7 ˚C/Watt Note: 1. Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These ratings are stress specifications only and correct functional operation of the device at these or any other conditions above those listed in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect product reliability. Operating Conditions Symbol Parameter Conditions VCC Power Supply Voltage VCCO Output Power Supply Voltage TA Ambient Temperature Min Typ Max Units 3.0 3.6 V 2.375 3.6 V 85 oC -40 LVCMOS/LVTTL DC Characteristics (TA = -40oC to +85oC, VCC = 3.3V ±5%, VCCO = 2.5V ±5% to 3.3V ±10%) Symbol Parameter Conditions Min Typ Max VIH Input High Voltage CLK_SEL 2 VCC+0.3 VIL Input Low Voltage CLK_SEL -0.3 0.8 IIH Input High Current CLK_SEL VIN = VCC = 3.6V IIL Input Low Current CLK_SEL VIN = 0V, VCC = 3.6V 06-0052 3 150 -5 Units V μA μA PS8805B 04/18/06 PI6C4853111 2.5V/3.3V 500MHz Low Skew 1-to-10 Differential to LVPECL Fanout Buffer w/ 2 to 1 Differential Clock Input Mux LVPECL DC Characteristics (TA = -40oC to +85oC, VCC = 3.3V ±10%, VCCO = 2.5V ±5% to 3.3V ±10%) Symbol Parameter Conditions Min Typ Max Units IIH Input High Current CLK0, CLK1 VIN = VCC = 3.6V 150 µA /CLK0, /CLK1 VIN = VCC = 3.6V 150 µA IIL Input Low Current CLK0, CLK1 VCC = 3.6V, VIN = 0V -5 µA /CLK0, /CLK1 VCC = 3.6V, VIN = 0V -150 µA VPP Peak-to-peak Voltage VCMR Common Mode Input Voltage(1) 0.3 1 V VEE+1.5 VCC V VOH Output High Voltage(2) Vcco=2.5V or 3.3V VCCO-1.4 VCCO-0.9 V VOL Output Low Voltage(2) Vcco=2.5V or 3.3V VCCO-2.0 VCCO-1.7 V 0.6 1.0 V 140 mA VSWING IEE Peak-to-peak Output Voltage Swing Power Supply Current @ 400 MHz 120 Notes: 1. For single-ended applications, the maximum input voltage for CLK and /CLK is VCC+0.3V 2. Outputs terminated with 50Ω to VCC-2.0V AC Characteristics (TA = -40oC to +85oC, VCC = 3.3V ±10%, VCCO = 2.5V ±5% to 3.3V ±10%) Symbol fmax Parameter Conditions Min Typ Output Frequency Delay(1) tpd Propagation Tsk Output-to-output tr/tf Output Rise/Fall time odc Output duty cycle Skew(2) 35 Max Units 500 MHz 4 ns 60 ps 20% - 80% 150 700 ps f ≤ 400 MHz 45 55 % Notes: 1. Measured from the differential input to the differential output crossing point 2 Defined as skew between outputs at the same supply voltage and with equal loads. Measured at the output differential crossing point 06-0052 4 PS8805B 04/18/06 PI6C4853111 2.5V/3.3V 500MHz Low Skew 1-to-10 Differential to LVPECL Fanout Buffer w/ 2 to 1 Differential Clock Input Mux Packaging Mechanical: 32-pin TQFP (FA) 9.00 BSC .354 Square Square 7.00 BSC 0.09 0.20 .004 .008 GAUGE PLANE 0.25 mm .276 1.20 Max. .047 0° 7° 0.45 .018 0.75 .030 1.00 REF .039 .004 0.10 Seating Plane 0.30 .012 0.45 .018 0.80 BSC .032 0.95 1.05 .037 .041 0.05 0.15 .002 .006 X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS Ordering Information(1,2,3) Ordering Code Package Code Package Description PI6C4853111FAE FA Pb-free & Green, 32-pin TQFP Notes: 1. Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. E = Pb-free & Green 3. X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 06-0052 5 PS8805B 04/18/06