ML12054A 2.0 GHz Super Low Power Dual Modulus Prescaler MECL PLL COMPONENTS ÷64/65, ÷128/129 SEMICONDUCTOR TECHNICAL DATA Legacy Device: Motorola MC12054A The ML12054A is a super low power dual modulus prescaler used in phase-locked loop applications with low power dissipation of 5.4 mW at a minimum supply voltage of 2.7 V. The ML12054A can be used with CMOS synthesizers requiring positive edges to trigger internal counters such as Motorola's MC145xxx or Lansdale’s ML145xxx series in a PLL to provide tuning signals up to 2.0 GHz in programmable frequency steps. A Divide Ratio Control (SW) permits selection of a 64/65 or 128/129 divide ratio as desired. The Modulus Control (MC) selects the proper divide number after SW has been biased to select the desired divide ratio. • 2.0 GHz Toggle Frequency • The ML12054A is Pin and Functionally Compatible with the Motorola MC12031 • Low Supply Current 2.0 mA Typical • 2.6mA Maximum, VCC = 2.7 to 5.5 Vdc • Short Setup Time (Tset) 10ns Maximum @ 2.0 GHz • Modulus Control Input Level is Compatible with Standard CMOS and TTL • Maximum Input Voltage Should Be Limited to 6.5 Vdc • Operating Temperature Range TA = –40 to 85°C SO 8 = -5P PLASTIC PACKAGE CASE 751 (SO–8) 8 1 CROSS REFERENCE/ORDERING INFORMATION MOTOROLA LANSDALE PACKAGE SO 8 MC12054AD ML12054A-5P Note: Lansdale lead free (Pb) product, as it becomes available, will be identified by a part number prefix change from ML to MLE. PIN CONNECTIONS IN VCC SW OUT 1 8 2 7 3 6 4 5 IN NC MC Gnd (Top View) FUNCTIONAL TABLE SW MC Divide Ratio H H 64 H L 65 L H 128 L L 129 NOTES: 1. SW: H = VCC, L = Open. A logic L can also be applied by grounding this pin, but this is not recommended due to increased power consumption. 2. MC: H = 2.0 V to VCC, L = GND to 0.8 V. MAXIMUM RATINGS Characteristic Symbol Range Unit VCC –0.5 to 7.0 Vdc TA –40 to 85 °C Storage Temperature Range Tstg –65 to 150 °C Modulus Control Input, Pin 6 MC –0.5 to 6.5 Vdc Power Supply Voltage, Pin 2 Operating Temperature Range Page 1 of 4 www.lansdale.com Issue A LANSDALE Semiconductor, Inc. ML12054A ELECTRICAL CHARACTERISTICS (VCC = 2.7 to 5.5 Vdc, TA = –40 to 85°C, unless otherwise noted.) Symbol Min Typ Max Unit ft 0.1 2.5 2.0 GHz ICC VIH1 VIL1 – 2.0 2.6 mA 2.0 – V Gnd – VCC + 0.5 V 0.8 VIH2 VIL2 VCC – 0.5 V Open VCC Open VCC + 0.5 V Open VDC Vout tset 0.8 1.1 – – 8.0 10 Vpp ns Input Voltage Sensitivity 250–2000 MHz 100–250 MHz Vin 100 400 – – 1000 1000 Output Current (Note 1) VCC = 2.7 V, CL = 8.0 pF, RL = 1.65 kΩ VCC = 5.0 V, CL = 8.0 pF, RL = 3.6 kΩ IO – – 1.0 1.0 4.0 4.0 Characteristic Toggle Frequency (Sine Wave Input) Supply Current (Pin 2) Modulus Control Input High (MC) Modulus Control Input Low (MC) Divide Ratio Control Input High (SW) Divide Ratio Control Input Low (SW) Output Voltage Swing (Note 2) (CL = 8.0 pF, RL = 1.65 kΩ) Modulus Setup Time MC to Out @ 2000 MHz V – mVpp mA NOTES: 1. Divide ratio of ÷64/65 @ 2.0 GHz 2. Valid over voltage range 2.7 to 5.5 V; RL = 1.65 kΩ @ VCC = 2.7 V; RL = 3.6 kΩ @ VCC = 5.0 V Figure 1. Logic Diagram (ML12054A) D Q D D Q B A Figure 2. Modulus Setup Time Q Prop. Delay C In QB C C QB C M QB In In Out MC MC Setup D Q D QB C D C QB D E Q D QB C F Q C QB D G H C S Q Q MC QB MC Release Out Modulus setup time MC to out is the MC setup or MC release plus the prop delay. SW Figure 3. AC Test Circuit VCC = 2.7 to 5.5 V C3 Sine Wave Generator C1 VCC SW IN 50 Ω OUT C2 CL IN RL MC GND MC Input Page 2 of 4 www.lansdale.com EXTERNAL COMPONENTS C1 = C2 = 1000 pF C3 = 0.1 µF CL = 8.0 pF (Including Scope and jig capacitance) RL = 1.65 kΩ @ VCC = 2.7 V RL = 3.6 kΩ @ VCC = 5.0 V Issue A LANSDALE Semiconductor, Inc. ML12054A Figure 4. Generic block diagram showing prescaler connection to PLL device Prescaler PLL Fout Fin ML145146 ML145158 ML145159 ML12054 MC in MC VCO Loop Filter Figure 4 shows a generic block diagram for connecting a prescaler to a PLL device that supports dual modulus control. Application note AN535 decribes using a twomodulus prescaler technique.By using prescaler higher frequencies can be achieve than by a single CMOS PLL device. Page 3 of 4 www.lansdale.com Issue A LANSDALE Semiconductor, Inc. ML12054A OUTLINE DIMENSIONS PLASTIC PACKAGE (ML12054A-5P) (SO–8) ISSUE T D A 8 NOTES: 1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M, 1994. 2. DIMENSIONS ARE IN MILLIMETER. 3. DIMENSION D AND E DO NOT INCLUDE MOLD PROTRUSION. 4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE. 5. DIMENSION B DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOW ABLE DAMBAR PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS OF THE B DIMENSION AT MAXIMUM MATERIAL CONDITION. C 5 0.25 H E M B M 1 4 h B X 45° e A C SEATING PLANE L 0.10 A1 B 0.25 M C B S A DIM A A1 B C D E e H h L MILLIMETERS MIN MAX 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 4.80 5.00 3.80 4.00 1.27 BSC 5.80 6.20 0.25 0.50 0.40 1.25 S Lansdale Semiconductor reserves the right to make changes without further notice to any products herein to improve reliability, function or design. Lansdale does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others. “Typical” parameters which may be provided in Lansdale data sheets and/or specifications can vary in different applications, and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by the customer’s technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc. Page 4 of 4 www.lansdale.com Issue A