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LMX2430TMX bảng dữ liệu(PDF) 4 Page - Texas Instruments |
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LMX2430TMX bảng dữ liệu(HTML) 4 Page - Texas Instruments |
4 / 53 page LMX2430, LMX2433, LMX2434 SNAS187D – FEBRUARY 2003 – REVISED JANUARY 2016 www.ti.com Pin Functions (continued) PIN I/O DESCRIPTION NAME ULGA TSSOP Programmable multiplexed output. Functions as a general-purpose CMOS tri-state output, N and R divider output, RF/ IF PLL push-pull analog lock-detect output, RF/ Ftest/LD 9 10 O IF PLL open-drain analog lock-detect output, or RF/ IF PLL digital filtered lock-detect output. 1 2 Ground for the IF PLL analog and digital circuits, MICROWIRE, Ftest/LD and GND 11 12 — oscillator circuits. 13 14 MICROWIRE Latch Enable input. High-impedance CMOS input. When LE LE 17 18 I transitions HIGH, DATA stored in the shift register is loaded into one of 6 internal control registers. Oscillator output/ IF PLL fastlock output. The output configuration is dependent on the state of the ENosc pin. When ENosc is set LOW, the pin functions as an IF OSCout/ fastlock output, which connects a resistor in parallel to R2 of the external loop filter. 6 7 O FLoutIF This configuration also functions as a general-purpose CMOS tri-state output. When ENosc is set HIGH, the pin functions as an oscillator output so that an external crystal can be used. Reference oscillator input. The input has an approximate Vcc/2 threshold and is OSCin 7 8 I driven by an external AC-coupled source. 16 17 Power supply bias for the RF PLL analog circuits. Vcc may range from 2.25 V to Vcc 8 9 — 2.75 V. Bypass capacitors must be placed as close as possible to this pin and be connected directly to the ground plane. 20 1 7 Specifications 7.1 Absolute Maximum Ratings See (1) (2) (3) (4) MIN MAX UNIT Power supply voltage −0.3 3.25 V VCC to GND Voltage on any pin to GND VI −0.3 VCC + 0.3 V VI must be < +3.25 V TL Lead temperature (solder 4 seconds) 260 °C Tstg Storage temperature −65 150 °C (1) Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) This device is a high-performance RF integrated circuit with an ESD rating < 2000 V and is ESD-sensitive. Handling and assembly of this device must be done at ESD-protected work stations. (3) GND = 0 V. (4) If Military/Aerospace specified devices are required, contact the Texas Instruments Sales Office/Distributors for availability and specifications. 7.2 Recommended Operating Conditions MIN MAX UNIT Power supply voltage Vcc to GND 2.25 2.75 V Operating temperature, TA −40 85 °C 4 Submit Documentation Feedback Copyright © 2003–2016, Texas Instruments Incorporated Product Folder Links: LMX2430 LMX2433 LMX2434 |
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Mô tả tương tự - LMX2430TMX |
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