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ML12079 Arkusz danych(PDF) 1 Page - LANSDALE Semiconductor Inc. |
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ML12079 Arkusz danych(HTML) 1 Page - LANSDALE Semiconductor Inc. |
1 / 4 page www.lansdale.com Page 1 of 4 Issue A ML12079 2.8 GHz Prescaler MECL PLL Components ÷64/128/256 Prescaler Legacy Device: Motorola MC12079 The ML12079 is a single modulus divide by 64, 128, 256 prescaler for low power frequency division of a 2.8 GHz (typical) high frequen- cy input signal. Divide ratio control inputs SW1 and SW2 select the required divide ratio of ÷64, ÷128, or ÷256. An external load resistor is required to terminate the output. A 1.2 k Ω resistor is recommended to achieve a 1.6 Vpp output swing, when dividing a 1.1 GHz input signal by the minimum divide ratio of 64, assuming a 12 pF load. Output current can be minimized dependent on conditions such as output frequency, capacitive load being driven, and output voltage swing required. Typical values for load resistors are included in the Vout specification for various divide ratios at 2.8 GHz input frequency. • 2.8 GHz Toggle Frequency • Supply Voltage 4.5 to 5.5 V • Low Supply Current 9mA Typical at VCC = 5.0 V • Operating Temperature Range of TA = –40 to 85°C P DIP 8 = PP PLASTIC PACKAGE CASE 626 SO 8 = -5P PLASTIC PACKAGE CASE 751 8 1 1 8 CROSS REFERENCE/ORDERING INFORMATION MOTOROLA P DIP 8 MC12079P ML12079PP SO 8 MC12079D ML12079-5P LANSDALE PACKAGE 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 (Top View) 8 IN VCC SW1 OUT NC SW2 Gnd 7 6 5 1 2 3 4 FUNCTIONAL TABLE SW1 SW2 Divide Ratio H H 64 H L 128 L H 128 L L 256 NOTE: SW1 & SW2: H = VCC, L = Open. MAXIMUM RATINGS Characteristic Symbol Range Unit Power Supply Voltage, Pin 2 VCC –0.5 to 7.0 Vdc Operating Temperature Range TA –40 to 85 °C Storage Temperature Range Tstg –65 to 150 °C Maximum Output Current, Pin 4 IO 4.0 mA |
Podobny numer części - ML12079 |
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Podobny opis - ML12079 |
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