LMX2377UTM National Semiconductor, LMX2377UTM Datasheet
LMX2377UTM
Specifications of LMX2377UTM
Related parts for LMX2377UTM
LMX2377UTM Summary of contents
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... CSP, and 20-Pin UTCSP surface mount plastic pack- ages. Thin Shrink Small Outline Package (MTC20) 20022680 PLLatinum ™ trademark of National Semiconductor Corporation. © 2002 National Semiconductor Corporation Features n Ultra Low Current Consumption n Upgrade and Compatible to the LMX2370 n 2.7V to 5.5V Operation n 1.8V to 5.0V MICROWIRE Logic Interface ...
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Functional Block Diagram www.national.com 2 20022604 ...
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Connection Diagrams Thin Shrink Small Outline Package (TM) (Top View) Ultra Thin Chip Scale Package (SLE) (Top View) Pin Descriptions Pin Pin No. Pin No. Name 20-Pin UTCSP 24-Pin CSP Main ...
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Pin Descriptions (Continued) Pin Pin No. Pin No. Name 20-Pin UTCSP 24-Pin CSP f Main GND 6 7 OSC GND Clock 10 12 Data ...
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... Model Temperature Range LMX2377USLEX −40˚C to +85˚C LMX2377USLBX −40˚C to +85˚C LMX2377UTM −40˚C to +85˚C LMX2377UTMX −40˚C to +85˚C Package Description Packing Ultra Thin Chip Scale 2500 Units Per Reel Package (UTCSP) Tape and Reel Chip Scale Package ...
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Detailed Block Diagram Notes supplies power to the Main and Aux prescalers, Main and Aux feedback dividers, Main and Aux reference dividers, Main and Aux phase detectors, the OSC CC buffer, and F LD circuitry Vµc ...
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... Absolute Maximum Ratings Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage V to GND CC V Main to GND P V Aux to GND P Voltage on any pin to GND ( < V must be +6.5V I Storage Temperature Range (T ...
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Electrical Characteristics Aux = Vµc = 3.0V, −40˚C ≤ Main = Symbol Parameter MAIN SYNTHESIZER PARAMETERS ID Main Main Charge Pump Output Source o SOURCE Current ID Main Main Charge Pump Output ...
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Electrical Characteristics Aux = Vµc = 3.0V, −40˚C ≤ Main = Symbol Parameter AUX SYNTHESIZER PARAMETERS ID Aux Aux Charge Pump Output Source o SOURCE Current ID Aux Aux Charge Pump Output ...
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Electrical Characteristics Aux = Vµc = 3.0V, −40˚C ≤ Main = Symbol Parameter DIGITAL INTERFACE (Data, LE, Clock High-Level Input Voltage IH V Low-Level Input Voltage IL I High-Level Input ...
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Electrical Characteristics Aux = Vµc = 3.0V, −40˚C ≤ Main = Symbol Parameter PHASE NOISE CHARACTERISTICS L (f) Main Main Synthesizer Normalized Phase N Noise Contribution (Note 10) L(f) Main Main Synthesizer ...
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Typical Performance Characteristics Sensitivity www.national.com LMX2377U f Main Input Power Vs Frequency Main = Vµ LMX2330U f Main Input Power Vs Frequency Main = Vµc = 5.5V CC ...
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Typical Performance Characteristics Sensitivity (Continued) LMX2377U f Aux Input Power Vs Frequency Aux = Vµ LMX2377U f Aux Input Power Vs Frequency Aux = Vµc = 5.5V CC ...
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Typical Performance Characteristics Sensitivity (Continued) www.national.com LMX2377U OSC Input Voltage Vs Frequency Vµc = 3.0V CC LMX2377U OSC Input Voltage Vs Frequency Vµ 20022652 20022653 ...
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Typical Performance Characteristics Charge Pump LMX2377U Main Charge Pump Sweeps −40˚C ≤ T ≤ +85˚C, Vµ 20022660 www.national.com ...
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Typical Performance Characteristics Charge Pump (Continued) www.national.com LMX2377U Aux Charge Pump Sweeps −40˚C ≤ T ≤ +85˚C, Vµ 20022661 ...
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Typical Performance Characteristics Input Impedance LMX2377U TSSOP f Main and f Aux Input Impedance Vµc = 3.0V +25˚ LMX2377U CSP f Main and f Aux Input Impedance Vµc ...
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Typical Performance Characteristics Input Impedance (Continued) LMX2377U UTCSP f Main and f Aux Input Impedance Vµc = 3.0V +25˚ LMX2377U UTCSP f Main and Vµc = 5.5V, ...
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Typical Performance Characteristics Input Impedance (Continued) LMX2377U TSSOP OSC LMX2377U CSP OSC Input Impedance Vs Frequency +25˚C A Input Impedance Vs Frequency +25˚ 20022676 20022677 www.national.com ...
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Typical Performance Characteristics Input Impedance (Continued) LMX2377U UTCSP OSC Input Impedance Vs Frequency +25˚ 200226A1 www.national.com ...
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Charge Pump Current Specification Definitions − ∆ Charge Pump Sink Current Charge Pump Sink Current ∆ Charge Pump Sink Current ...
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Test Setups The block diagram above illustrates the setup required to measure the LMX2377U device’s Main charge pump sink current. The same setup is used for the LMX2370TMEB/ LMX2370SLEEB Evaluation Boards. The Aux charge pump measurement setup is similar to ...
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Test Setups (Continued) The block diagram above illustrates the setup required to measure the LMX2377U device’s Main input sensitivity level. The same setup is used for the LMX2370TMEB/ LMX2370SLEEB Evaluation Boards. The Aux input sensitiv- ity test setup is similar ...
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Test Setups (Continued) The block diagram above illustrates the setup required to measure the LMX2377U device’s OSC level. The same setup is used for the LMX2370TMEB/ LMX2370SLEEB Evaluation Boards. This setup is similar to the f sensitivity setup except that ...
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Test Setups (Continued) The block diagram above illustrates the setup required to measure the LMX2377U device’s Main input impedance. The Aux input impedance and reference oscillator imped- ance setups are very much similar. The same setup is used for the ...
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Test Setups (Continued) LMX2377U Serial Data Input Timing Notes: 1. Data is clocked into the 22-bit shift register on the rising edge of Clock 2. The MSB of Data is shifted in first. www.national.com 20022610 30 ...
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... Functional Description The basic phase-lock-loop (PLL) configuration consists of a high-stability crystal reference oscillator, a frequency synthe- sizer such as the National Semiconductor LMX2377U, a voltage controlled oscillator (VCO), and a passive loop filter. The frequency synthesizer includes a phase detector, cur- rent mode charge pump, programmable reference R and feedback N frequency dividers ...
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Functional Description 1.5 PHASE/FREQUENCY DETECTORS The Main and Aux phase/frequency detectors are driven from their respective N and R counter outputs. The maxi- mum frequency for both the Main and Aux phase detector inputs is 10 MHz. The phase/frequency ...
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Functional Description 1.8.2 Open Drain FastLock Output The LMX233xU Fastlock feature allows faster loop response time during lock aquisition. The loop response time (lock time) can be approximately halved if the loop bandwidth is doubled. In order to achieve ...
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Programming Description 2.1 MICROWIRE INTERFACE The 22-bit shift register is loaded via the MICROWIRE interface. The shift register consists of a 20-bit Data[19:0] Field and a 2-bit Address[1:0] Field as shown below. The Address Field is used to decode ...
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Programming Description 2.4 AUXILIARY R REGISTER The Aux R register contains the Aux R_CNTR, PD_POL Aux, ID bits that compose the F LD control word. The detailed description and programming information for each control word is o discussed in ...
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Programming Description 2.4.4 TRI-STATE ID Aux AUXILIARY SYNTHESIZER CHARGE PUMP TRI-STATE CURRENT o The TRI-STATE ID Aux bit allows the charge pump to be switched between a normal operating mode and a high impedance o output state. This happens ...
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Programming Description 2.5.3 PRE Aux AUXILIARY SYNTHESIZER PRESCALER SELECT The Aux synthesizer utilizes a selectable dual modulus prescaler. Control Bit Register Location PRE Aux Aux N[20] 2.5.4 PWDN Aux AUXILIARY SYNTHESIZER POWERDOWN The PWDN Aux bit is used to ...
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Programming Description 2.6.2 PD_POL Main MAIN SYNTHESIZER PHASE DETECTOR POLARITY The PD_POL Main bit is used to control the Main synthesizer’s phase detector polarity based on the VCO tuning characteristics. Control Bit Register Location PD_POL Main Main R[17] 2.6.3 ...
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Programming Description 2.7 MAIN N REGISTER The Main N register contains the Main N_CNTRA, Main N_CNTRB, PRE Main, and PWDN Main control words. The Main N_CNTRA and Main N_CNTRB control words are used to setup the programmable feedback divider. ...
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Programming Description 2.8 F LD[3:0] MULTI-FUNCTION OUTPUT SELECT o The F LD control word is used to select which signal is routed to the LD3 F LD2 F LD1 F LD0 ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 20-Pin Thin Shrink Small Outline Package (TM) NS Package Number MTC20 42 ...
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Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 24-Pin Chip Scale Package (SLB) NS Package Number SLB24A 43 www.national.com ...
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... NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant ...