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| Micrel, Inc. 3.3V/5V, 4GHz PECL/ECL / 2 CLOCK GENERATOR Precision Edge SY89312V Precision Edge(R) SY89312V (R) FEATURES s Guaranteed AC performance over temperature and voltage: * > 4GHz fMAX input * < 160ps tr/tf * < 440ps tpd s 3.3V and 5V power supply operation s 100k ECL/PECL compatible I/O s Internal 75K input pull-down resistors s Wide operating temperature range: -40C to +85C s Available in ultra-small 8-pin MLF(R) (2mm x 2mm) package Precision Edge(R) DESCRIPTION The SY89312V is an integrated /2 divider with differential clock inputs. It is functionally equivalent to the SY100EP32V but in an ultra-small 8-lead MLF(R) package that features a 70% smaller footprint. The VBB pin, an internally generated voltage supply, is available for this device only. For single-ended input conditions, the unused differential input is connected to VBB as a switching reference voltage. VBB may also bias AC-coupled inputs. When used, decouple VBB and VCC via a 0.01F capacitor and limit current sourcing or sinking to 0.5mA. When not used, VBB should be left open. The reset pin is asynchronous and is asserted when it is high. Upon power-up, the internal flip-flops will be in a random state; the reset allows for the synchronous use of multiple SY89312Vs in a system. TRUTH TABLE(1) CLK X /CLK X RESET H L Note: 1. F = Divide by 2 function Q L F /Q H F Precision Edge is a registered trademark of Micrel, Inc. MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc. M9999-051006 hbwhelp@micrel.com or (408) 955-1690 Rev.: C Amendment: /0 1 Issue Date: May 2006 Micrel, Inc. Precision Edge(R) SY89312V PACKAGE/ORDERING INFORMATION Ordering Information RESET CLK /CLK VBB 1 8 VCC Q /Q VEE R 2 3 4 7 Part Number SY89312VMITR SY89312VMGTR(1) Note: Package Type MLF-8 MLF-8 Operating Range Industrial Industrial Package Marking 312 312 with Pb-Free bar-line indicator Lead Finish Sn-Pb Pb-Free NiPdAu /2 6 5 1. Pb-Free package is recommended for new designs. TOP VIEW 8-Pin MLF(R) Ultra-Small Outline (2mm x 2mm) PIN DESCRIPTION Pin Number 2, 3 Pin Name CLK, /CLK Type 100K ECL/PECL Input ended inputs. 100K ECL/PECL Output Positive Power Supply Negative Power Supply Reference Voltage Output 100k ECL/PECL Input Pin Function Differential PECL/ECL Input: Internal 75k pull-down resistor. If left open, pin defaults LOW. See "Input Interface Applications" section for singleDifferential PECL/ECL Output: Output CLK input divided by 2. See "Output Interface Applications" section for recommendations on terminations. Positive Power Supply: Bypass with 0.1F//0.01F low ESR capacitors. Negative Power Supply: VEE and Exposed pad must be tied to most negative supply. For PECL/LVPECL connect to ground. Bias Reference Voltage: VCC-1.4V. Used as reference voltage for singleended inputs or AC-coupling to the CLK, /CLK inputs. Max sink/source is 0.5mA. See "Input Interface Applications" section. Single-ended Input: PECL/ECL Asynchronous reset. 7, 6 8 5 4 Q, /Q VCC VEE, Exposed Pad VBB 1 Reset M9999-051006 hbwhelp@micrel.com or (408) 955-1690 2 Micrel, Inc. Precision Edge(R) SY89312V Absolute Maximum Ratings( 1) Supply Voltage (|VCC-VEE|) ......................................... 6.0V Input Voltage (VIN) ......................................... -0.5V to VCC LVPECL Output Current (IOUT) Continuous ............................................................. 50mA Surge .................................................................... 100mA Current (VBB) Source or sink current on VBB,(3) .............................. 1.5mA Lead Temperature (soldering, 20 sec.) ................... +260C Storage Temperature (TS) ....................... -65C to +150C Operating Ratings(2) Supply Voltage (|VCC-VEE|) ............................ 3.0V to 3.6V ................................................................ 4.5V to 5.5V Ambient Temperature (TA) ......................... -40C to +85C Package Thermal Resistance(4) MLF(R) (JA) Still-Air ................................................................. 93C/W 500lfpm ............................................................... 87C/W MLF(R) (JB) Junction-to-Board ................................................ 56C/W PECL/ECL (100K) DC ELECTRICAL CHARACTERISTICS VCC = +3.3V 10% or +5V 10% and VEE = 0V; VCC = 0V and VEE = -3.3V 10% or -5V 10%; RL = 50 to VCC-2V; TA = -40C to +85C unless otherwise stated. Symbol IEE VOH VOL VIH VIL VIHCMR VBB IIH IIL Parameter Power Supply Current Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage Input HIGH Voltage Common Mode Range Bias Voltage Input HIGH Current Input LOW Current CLK Input LOW Current /CLK Notes: 1. Permanent device damage may occur if absolute maximum ratings are exceeded. This is a stress rating only and functional operation is not implied at conditions other than those detailed in the operational sections of this data sheet. Exposure to absolute maximum ratlng conditions for extended periods may affect device reliability. 2. The data sheet limits are not guaranteed if the device is operated beyond the operating ratings. 3. Due to the limited drive capability use for input of the same package only. 4. Package thermal resistance assumes exposed pad is soldered (or equivalent) to the devices most negative potential on the PCB. 5. VIHCMR(min) varies 1:1 with VEE, (max) varies 1:1 with VCC. Condition Max VCC, no load Min -- VCC-1.145 VCC-1.945 VCC-1.225 VCC-1.945 Typ 30 -- -- -- -- -- Max 42 VCC-0.895 VCC-1.695 VCC-0.88 VCC-1.625 VCC Units mA V V V V V V A A A Note 5 VEE+2.0 VCC-1.525 VCC-1.425 VCC-1.325 -- 0.5 -150 -- -- -- 150 -- -- M9999-051006 hbwhelp@micrel.com or (408) 955-1690 3 Micrel, Inc. Precision Edge(R) SY89312V AC ELECTRICAL CHARACTERISTICS(6) PECL: VCC = +3.3V 10% or +5V 10% and VEE = GND; ECL: VEE = -3.3V 10% or -5V 10% and VCC = GND; RL = 50 to VCC-2V; TA = -40C to +85C unless otherwise stated. Symbol fMAX tpd tRR tPW tJITTER VPP tr tf Note: 6. Measured using a 750mV source, 50% duty cycle clock source. Parameter Maximum Input Frequency Propagation Delay to Output Differential RESET, CLK Q, /Q Set/Reset Recovery Minimum Pulse Width Cycle-to-Cycle RMS Jitter Input Voltage Swing (Differential) Output Rise/Fall Times (20% to 80%) Q, /Q RESET Condition Min 4 250 200 550 -- 150 50 Typ -- 275 100 200 -- 800 100 Max -- 440 -- -- 1 1200 160 Units GHz ps ps ps psRMS mV ps TIMING DIAGRAM CLK t RR RESET Q M9999-051006 hbwhelp@micrel.com or (408) 955-1690 4 Micrel, Inc. Precision Edge(R) SY89312V INPUT INTERFACE APPLICATIONS Single-Ended CLK SY89312V VCC /CLK 0.01F VBB Figure 1. Single-Ended LVPECL Input (Terminating Unused Input) LVPECL OUTPUT INTERFACE APPLICATIONS VCC VCC R1 ZO = 50 ZO = 50 VCC --2V R2 VCC = 3.3V; R1 = 130, R2 = 82 VCC = 5V; R1 = 83, R2 = 125 R1 VCC VCC ZO = 50 ZO = 50 50 50 Rpd VCC R2 VCC = 3.3V; Rpd = 50 VCC = 5V; Rpd = 100 C (Optional) 0.01F Figure 2a. Parallel Thevenin-Equivalent Termination Figure 2b. Three Resistor "Y Termination" VCC VCC VCC R1 R1 ZO = 50 VCC --2V R3 VCC R2 R2 R4 VCC --1.3V VCC = 3.3V; R1 = 130, R2 = 82, R3 = 1k, R4 = 1.6k, VCC = 5V; R1 = 83, R2 = 125, R3 = 1k, R4 = 2.8k, Figure 2c. Terminating Unused I/O M9999-051006 hbwhelp@micrel.com or (408) 955-1690 5 Micrel, Inc. Precision Edge(R) SY89312V 8 LEAD ULTRA-SMALL EPAD-MicroLeadFrame(R) (MLF-8) Package EP- Exposed Pad Die CompSide Island Heat Dissipation Heat Dissipation VEE Heavy Copper Plane VEE Heavy Copper Plane PCB Thermal Consideration for 8-Pin MLF(R) Package Package Notes: 1. Package meets Level 2 qualification. 2. All parts are dry-packaged before shipment. 3. Exposed pads must be soldered to the most negative plane, equivalent to device VEE, for proper thermal management. MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 TEL USA + 1 (408) 944-0800 FAX + 1 (408) 474-100 WEB http://www.micrel.com The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser's use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser's own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. (c) 2006 Micrel, Incorporated. M9999-051006 hbwhelp@micrel.com or (408) 955-1690 6 |
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