PI6C3503 Low Power Spread Spectrum Frequency Multiplier Description Features • Produces a 1 time spread spectrum clock signal from the input frequency. The PI6C3503 is a Low Power Frequency Multiplier with Spread Spectrum function to reduce EMI interference. The PI6C3503 provides a 1 time Spread Spectrum modulated output from a single clock source or a crystal. The PI6C3503 can reduce EMI at the clock output and it allows significant system cost savings by reducing the number of circuit board layers ferrite beads and shielding that are traditionally required to pass EMI regulations. • 2.5 V or 3.3V power supply operation. • Input frequency range from 13MHz to 30MHz. • Frequency Spreading Ratio : +1.15% (Typical @15MHz output frequency) • Modulation Rate : Fin/640 • Low power consumption design Power down control is selectable through external logic state setting. The various and small package outlines can save board size and is easy for layout. • 6-pin SOT-23, 6-pin TDFN, 8-pin TSSOP, and 8-pin SOIC Packages. The PI6C3503 can be used in most portable devices with low power requirements like PDA, DSC, MFP, Media player, portable-TV, and LCM(LCD Panel Module). PI6C3503 is one of Pericom clock products, if you have application need with clock input or output not specified here, please contact with Pericom for further information or custom clock design. Block Diagram Pin Configuration PD X2 PD X1/CLKIN 1/M X2 PED /CP VCO CLKOU T VDD 1/K Modulation X1 /CLKIN 1/N X2 PD NC 08-0035 SOT-23 X1 /CLKIN CLKOUT LPF GND 6 Pin 1 VDD 8 Pin SOIC TSSOP NC CLKOU T GND PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier 6 Pin Description Pin Name Pin No. 1 PD IO TYPE I X2 2 O X1/CLKIN 3 I VDD CLKOUT GND 4 5 6 Power O GND 8 Pin Description Pin Name Pin No. X1/CLKIN 1 IO TYPE I X2 2 O PD 3 I NC GND CLKOUT NC VDD 4 5 6 7 8 NC GND O NC Power Descriptions Power down control pin. Pull low to enable power down mode. Connect to VDD if not used. Crystal connection. If using an external reference, this pin must be left unconnected. Crystal connection or external reference frequency input. This pin has dual functions. It can be connected either to an external crystal or an external reference clock. Power Supply. Spread spectrum clock output. Ground. Descriptions Crystal connection or external reference frequency input. This pin has dual functions. It can be connected either to an external crystal or an external reference clock. Crystal connection. If using an external reference, this pin must be left unconnected. Power down control pin. Pull low to enable power down mode. Connect to VDD if not used. No Connection. Ground. Spread spectrum clock output. No connection. Power Supply. Electrical Specification Maximum Ratings Item Supply Voltage to Ground All Inputs and Outputs Storage Temperature Junction Temperature Soldering Temperature Note: Rating 5.5V -0.5V to VDD+0.5V -65 to +150°C 150°C 260°C 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 period may affect reliability. 08-0035 2 PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier DC Characteristics VDD = 2.5V ±5%, Ambient Temperature 0 to +70°C Symbol Parameter Conditions Min. Operating Voltage – 2.375 VDD VIH Input High Voltage – 2.0 VIL Input Low Voltage – – VOH Output High Voltage IOH= –8mA 1.8 VOL Output Low Voltage IOL= 8mA – IDD Supply Current 13MHz output and no – load IDDq Power down static current – PD = low – ZOUT_DOWN Nominal output impedance Down side buffer Typ. 2.5 – – – – 1.9 Max. 2.625 – 0.8 – 0.6 2.4 Unit V V V V V mA – 40 1 – μA Ω ZOUT_UP Nominal output impedance Up side buffer – 45 – Ω CIN TON Input Capacitance Power on time X1 input pin PD from low to high – – 5 3 – – pF ms 08-0035 3 PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier AC Characteristics VDD = 2.5V ±5%, Ambient Temperature 0 to +70°C Symbol Parameter Conditions CLKIN Input Frequency – CLKOUT Output Frequency – Output Frequency = 13MHz Spreading ratio SRatio Output Frequency = 30MHz Measured from 20% tRise Output rise time to 80% VDD, 15pF load. Measured from 80% tFall Output fall time to 20% VDD. 15pF load. tJ_Short Short term jitter Cycle to cycle jitter TDCIN Input duty cycle – TDCOUT 08-0035 Output duty cycle – 4 Min. 13 13 Typ. – – Max. 30 30 – ±1.15 – Unit MHz MHz % – ±0.65 – – 1.7 – ns – 1.50 – ns – – 200 ps 30 45 50 50 70 55 % % PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier DC Characteristics VDD = 3.3V ±10%, Ambient Temperature 0 to +70°C Symbol Parameter Conditions Operating Voltage – VDD Input High Voltage – VIH Input Low Voltage – VIL VOH Output High Voltage IOH = –8mA Output Low Voltage IOL= 8mA VOL IDD Supply Current 13MHz output and no load IDDq Power down static current PD = low Min. 3.0 2.0 – 2.5 – – Typ. 3.3 – – – – 2.7 – – Max. 3.6 – 0.8 – 0.4 3.8 Unit V V V V V mA μA Ω ZOUT_DOWN Nominal output impedance Down side buffer – 38 1 – ZOUT_UP Nominal output impedance Up side buffer – 40 – Ω CIN TON Input Capacitance Power on time X1 input pin PD from low to high – – 5 2 – – pF ms 08-0035 5 PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier AC Characteristics VDD = 3.3V ±10%, Ambient Temperature 0 to +70°C Symbol Parameter Conditions CLKIN Input Frequency – CLKOUT Output Frequency – Output frequency = SRatio Spreading Ratio 13MHz Output frequency = 30MHz tRise Output rise time Measured from 20% to 80% VDD, 15pF load Output fall time Measured from 80% tFall to 20% VDD, 15pF load tj_Short Short term jitter Cycle to cycle jitter Input duty cycle – TDCIN TDCOUT Output duty cycle – Min. 13 13 – Typ. – – ±1.25 Max. 30 30 – Unit MHz MHz – ±0.7 – – 1.3 – ns – 1.2 – ns – 30 45 – 50 50 150 70 55 ps % % % Application Information Crystal Load Capacitors If a crystal is used with the device, the external trim capacitors CLtrim are used to adjust the effective capacitance to match the required crystal load capacitance. The CLtrim value can be derived from formula CLtrim = 2*CL – (Cs + Ci). Typical CLtrim = 28pF when crystal load = 18pF, stray capacitance Cs = 3pF and XTAL pins capacitance = 5pF. Crystal X1 X2 CLtrim 08-0035 CLtrim 6 PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier Physical Dimensions Packaging Mechanical: 6-Pin, SOT-23 DOCUMENT CONTROL NO. PD - 1912 0.075 1.90 BSC 6 5 REVISION: C DATE: 03/09/05 4 0.059 1.50 0.068 1.75 2 0.037 0.95 BSC 0.102 2.60 0.118 3.00 3 0º - 10º Datum "A" 0.004 0.10 0.023 0.60 0.014 0.35 0.019 0.50 0.110 2.80 0.118 3.00 0.057 1.45 MAX. X.XX DENOTES DIMENSIONS X.XX IN MILLIMETERS SEATING PLANE 0.000 0.00 0.005 0.15 Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Notes: 1) Controlling dimensions in millimeters 2) Ref: EIAJ SC-74A 3) Foot length is measured at flat portion of foot, reference to Datum “A” DESCRIPTION: 6-Pin Small Outline Transistor Plastic Package, SOT-23 PACKAGE CODE: T 08-0035 7 PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier Physical Dimensions Packaging Mechanical: 6-Pin, TDFN DOCUMENT CONTROL NO. PD - 2020 REVISION: A DATE: 03/09/05 Ò "3# -!8 Ò Ò 2%& Ò Ò Ò Ò Ò -!8 0IN 0IN .OTES !LLDIMENSIONSAREINMILLIMETERS #OPLANARITYSHALLNOTEXCEEDMM 7ARPAGESHALLNOTEXCEEDMM *%$%#-/#2EF Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com DESCRIPTION: 6-Contact, Thin Dual-in-line Flat No Lead Package, TDFN PACKAGE CODE: ZC 08-0035 8 PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier Physical Dimensions Packaging Mechanical: 8-Pin, SOIC $/#5-%.4#/.42/,./ 0$ 2%6)3)/.& $!4% X 3%!4).'0,!.% 2%& "3# Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com 888 $%./4%3$)-%.3)/.3 888 ).-),,)-%4%23 .OTES #ONTROLLINGDIMENSIONSINMILLIMETERS 2EF*%$%#-3$!! 08-0035 $%3#2)04)/.0IN-IL7IDE3/)# 0!#+!'%#/$%7 9 PS8929A 02/19/08 PI6C3503 Low Power Spread Spectrum Frequency Multiplier Physical Dimensions Packaging Mechanical: 8-Pin, TSSOP $/#5-%.4#/.42/,./ 0$ 2%6)3)/.% $!4% Pericom Semiconductor Corporation 3545 N. 1st Street, San Jose, CA 95134 1-800-435-2335 • www.pericom.com Note: 1. Package Outline Exclusive of Mold Flash and Metal Burr 2. Controlling dimentions in millimeters 3. Ref: JEDEC MO-153F/AA $%3#2)04)/.0IN-IL7IDE433/0 0!#+!'%#/$%, Ordering Information Ordering Code PI6C3503TE PI6C3503ZCE PI6C3503WE PI6C3503LE Packaging Code T ZC W L Package Description Pb-Free & Green, 6-Pin SOT-23 Pb-Free & Green, 6-Pin TDFN Pb-free & Green, 8-Pin SOIC Pb-free & Green, 8-Pin TSSOP Notes: 1. Thermal characteristics and package top marking can be found at www.pericom.com/packaging. 2. E=Pb-free and Green package 3. Adding an X suffix = Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 08-0035 10 PS8929A 02/19/08