MC100LVEP34DR2

MC100LVEP34 2.5V / 3.3V ECL ÷2, ÷4, ÷8 Clock Generation Chip The MC100LVEP34 is a low skew ÷2, ÷4, ÷8 clock generation chip designed explicitly for low skew clock generation applications. The internal dividers are synchronous to each other, therefore, the common output edges are all precisely aligned. The VBB pin, an internally generated voltage supply, is available to this device only. For single- ended input conditions, the unused differential input is connected to VBB as a switching reference voltage. VBB may also rebias AC coupled inputs. When used, decouple VBB and VCC via a 0.01 mF capacitor and limit current sourcing or sinking to 0.5 mA. When not used, VBB should be left open. The common enable (EN) is synchronous so that the internal dividers will only be enabled/disabled when the internal clock is already in the LOW state. This avoids any chance of generating a runt clock pulse on the internal clock when the device is enabled/disabled as can happen with an asynchronous control. An internal runt pulse could lead to losing synchronization between the internal divider stages. The internal enable flip-flop is clocked on the falling edge of the input clock; therefore, all associated specification limits are referenced to the negative edge of the clock input. Upon start-up, the internal flip-flops will attain a random state; the master reset (MR) input allows for the synchronization of the internal dividers, as well as multiple LVEP34s in a system. Single-ended CLK input operation is limited to a VCC ≥ 3.0 V in PECL mode, or VEE ≤ -3.0 V in NECL mode. http://onsemi.com MARKING DIAGRAMS* 16 16 SO-16 D SUFFIX CASE 751B •35 ps Output-to-Output Skew •Synchronous Enable/Disable •Master Reset for Synchronization •The 100 Series Contains Temperature Compensation. •PECL Mode Operating Range: VCC = 2.375 V to 3.8 V 1 16 100 VP34 ALYWG G 16 1 TSSOP-16 DT SUFFIX CASE 948F A L, WL Y W, WW G or G Features 100LVEP34G AWLYWW 1 1 = Assembly Location = Wafer Lot = Year = Work Week = Pb-Free Package (Note: Microdot may be in either location) *For additional marking information, refer to Application Note AND8002/D. with VEE = 0 V ORDERING INFORMATION •NECL Mode Operating Range: VCC = 0 V See detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet. with VEE = -2.375 V to -3.8 V •Open Input Default State •LVDS Input Compatible •Pb-Free Packages are Available © Semiconductor Components Industries, LLC, 2007 June, 2007 - Rev. 10 1 Publication Order Number: MC100LVEP34/D MC100LVEP34 Q0 1 Q Q0 VCC 15 EN 14 NC 13 CLK 12 CLK ÷2 2 R VCC 16 Q D 3 R Q1 4 Q Q1 ÷4 5 R VCC 6 11 VBB Q2 7 10 MR 9 VEE Q ÷8 Q2 8 R Warning: All VCC and VEE pins must be externally connected to Power Supply to guarantee proper operation. Figure 1. 16-Lead Pinout (Top View) and Logic Diagram Table 1. PIN DESCRIPTION Pin Table 2. FUNCTION TABLE Function CLK*, CLK** ECL Diff Clock Inputs EN* ECL Sync Enable MR* ECL Master Reset Q0, Q0 ECL Diff ÷2 Outputs Q1, Q1 ECL Diff ÷4 Outputs Q2, Q2 ECL Diff ÷8 Outputs VBB Reference Voltage Output VCC Positive Supply VEE Negative Supply NC No Connect CLK EN MR FUNCTION Z ZZ X L H X L L H Divide Hold Q0- 3 Reset Q0- 3 Z = Low-to-High Transition ZZ = High-to-Low Transition * Pins will default LOW when left open. **Pins will default to VCC/2 when left open. http://onsemi.com 2 MC100LVEP34 Table 3. ATTRIBUTES Characteristics Value Internal Input Pulldown Resistor 75 kW Internal Input Pullup Resistor ESD Protection 37.5 kW Human Body Model Machine Model Charged Device Model > 2 kV > 200 V > 2 kV Moisture Sensitivity, Indefinite Time Out of Drypack (Note 1) Flammability Rating Level 1 Oxygen Index: 28 to 34 UL 94 V-O @ 0.125 in Transistor Count 210 Devices Meets or exceeds JEDEC Spec EIA/JESD78 IC Latchup Test 1. For additional Moisture Sensitivity information, refer to Application Note AND8003/D. Table 4. MAXIMUM RATINGS Symbol Parameter Condition 1 Condition 2 Rating Unit 6 V -6 V 6 -6 V V 50 100 mA mA ± 0.5 mA -40 to +85 °C VCC PECL Mode Power Supply VEE = 0 V VEE NECL Mode Power Supply VCC = 0 V VI PECL Mode Input Voltage NECL Mode Input Voltage VEE = 0 V VCC = 0 V Iout Output Current Continuous Surge IBB VBB Sink/Source TA Operating Temperature Range Tstg Storage Temperature Range -65 to +150 °C qJA Thermal Resistance (Junction-to-Ambient) 0 lfpm 500 lfpm SOIC-16 SOIC-16 100 60 °C/W °C/W qJC Thermal Resistance (Junction-to-Case) Standard Board SOIC-16 33 to 36 °C/W qJA Thermal Resistance (Junction-to-Ambient) 0 lfpm 500 lfpm TSSOP-16 TSSOP-16 138 108 °C/W °C/W qJC Thermal Resistance (Junction-to-Case) Standard Board TSSOP-16 33 to 36 °C/W Tsol Wave Solder