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LMX2332LEPLMDA Datasheet

Download or read online National Semiconductor LMX2332LEPLMDA 1.2 GHz/510 MHZ Pllatinum Low Power Dual Frequency Synthesizer For RF Personal Communications, Package: Evaluation Board, Pin Nb pdf datasheet.



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LMX2330L/LMX2331L/LMX2332L
PLLatinum
Low Power Dual Frequency Synthesizer for
RF Personal Communications
LMX2330L 2.5 GHz/510 MHz
LMX2331L 2.0 GHz/510 MHz
LMX2332L 1.2 GHz/510 MHz
General Description
The LMX233XL family of monolithic, integrated dual fre-
quency synthesizers, including prescalers, is to be used as a
local oscillator for RF and first IF of a dual conversion
transceiver. It is fabricated using National’s 0.5µ ABiC V
silicon BiCMOS process.
The LMX233XL contains dual modulus prescalers. A 64/65
or a 128/129 prescaler (32/33 or 64/65 in the 2.5 GHz
LMX2330L) can be selected for the RF synthesizer and a 8/9
or a 16/17 prescaler can be selected for the IF synthesizer.
LMX233XL, which employs a digital phase locked loop tech-
nique, combined with a high quality reference oscillator,
provides the tuning voltages for voltage controlled oscillators
to generate very stable, low noise signals for RF and IF local
oscillators. Serial data is transferred into the LMX233XL via
a three wire interface (Data, Enable, Clock). Supply voltage
can range from 2.7V to 5.5V. The LMX233XL family features
very low current consumption;
LMX2330L — 5.0 mA at 3V, LMX2331L — 4.0 mA at 3V,
LMX2332L — 3.0 mA at 3V.
The LMX233XL are available in a TSSOP 20-pin, CSP
24-pin surface mount plastic package, and thin CSP 20-pin
surface mount plastic package.
Functional Block Diagram
© 2001 National Semiconductor Corporation
Features
n Ultra low current consumption
n 2.7V to 5.5V operation
n Selectable synchronous or asynchronous powerdown
mode:
I
= 1 µA typical at 3V
CC
n Dual modulus prescaler:
LMX2330L
LMX2331L/32L
LMX2330L/31L/32L (IF) 8/9 or 16/17
n Selectable charge pump TRI-STATE
n Selectable charge pump current levels
n Selectable Fastlock
n Upgrade and compatible to LMX233XA family
Applications
n Portable Wireless Communications
(PCS/PCN, cordless)
n Cordless and cellular telephone systems
n Wireless Local Area Networks (WLANs)
n Cable TV tuners (CATV)
n Other wireless communication systems
DS012806
October 2001
(RF) 32/33 or 64/65
(RF) 64/65 or 128/129
®
mode
mode
01280601
www.national.com

Summary of Contents

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... LMX2332L 3 3V. The LMX233XL are available in a TSSOP 20-pin, CSP 24-pin surface mount plastic package, and thin CSP 20-pin surface mount plastic package. Functional Block Diagram © 2001 National Semiconductor Corporation Features n Ultra low current consumption n 2.7V to 5.5V operation n Selectable synchronous or asynchronous powerdown ...

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Connection Diagrams Chip Scale Package (SLB) (Top View) Order Number LMX2330LSBX, LMX2331LSLBX or LMX2332LSLBX NS Package Number SLB24A 20-Pin Thin Chipscale Package (SLD) (Top View) Order Number LMX2330LSLDX, LMX2331LSLDX, or LMX2332LSLDX NS Package Number SLD20A www.national.com Thin Shrink Small Outline ...

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Pin Descriptions Pin No. Pin No. Pin No. LMX233XLSLD LMX233XLSLB LMX233XLTM 20-pin Thin 24-pin CSP 20-pin TSSOP CSP Package Package Package ...

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Block Diagram Note: The RF prescaler for the LMX2331L/32L is either 64/65 or 128/129, while the prescaler for the LMX2330L is 32/33 or 64/65. Note supplies power to the RF prescaler, N-counter, R-counter and phase detector ...

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... Absolute Maximum Ratings 2) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Supply Voltage Voltage on Any Pin with GND Storage Temperature Range ( Lead Temperature (solder 4 sec Electrical Characteristics < ...

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Electrical Characteristics < 3.0V 3.0V; 40˚ Symbol Parameter t Clock Pulse Width High CWH t Clock Pulse Width Low CWL t Clock to Load Enable Set Up Time ES t Load Enable ...

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Charge Pump Current Specification Definitions sink current − sink current sink current ...

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RF Sensitivity Test Block Diagram Note 10,000 Note 2: Sensitivity limit is reached when the error of the divided RF output, F Typical Performance Characteristics LMX2330L ...

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Typical Performance Characteristics Charge Pump Current HIGH CP Charge Pump Current Variation (See (Note 6) under Charge Pump Current Specification Definitions) (Continued) Voltage Charge Pump Current 01280623 (See (Note 7) under Charge Pump ...

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Typical Performance Characteristics RF Input Impedance V 2.7V to 5.5V MHz to 3 GHz CC IN www.national.com (Continued) IF Input Impedance V 2.7V to 5.5V 01280627 MHz to 1000 ...

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Typical Performance Characteristics LMX233xSLD RF Input Impedance V 2.7V to 5.5V 500 MHz to 3 GHz 100 pF Marker 1 500 MHz, Real 202.98, Imaginary 200.09 Marker 2 1.8 GHz, ...

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Typical Performance Characteristics LMX2332L RF Sensitivity vs Frequency Oscillator Input Sensitivity vs Frequency Functional Description The simplified block diagram below shows the 22-bit data register, two 15-bit R Counters and the 15- and 18-bit N Counters (intermediate latches are not ...

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Functional Description PROGRAMMABLE REFERENCE DIVIDERS (IF AND RF R COUNTERS) If the Control Bits are (00 for IF and 01 for RF) data is transferred from the 22-bit shift register into a latch which sets the 15-bit ...

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Functional Description 7-BIT SWALLOW COUNTER DIVIDE RATIO (A COUNTER) RF Divide Ratio 127 ...

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Functional Description PROGRAMMABLE MODES Several modes of operation can be programmed with bits R16R20 including the phase detector polarity, charge pump TRI-STATE and the output of the F LD pin. The prescaler and powerdown modes are selected with bits N19 ...

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Functional Description RF R[19] IF R[19] (RF LD) (IF LD dont care condition Note ...

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Functional Description SERIAL DATA INPUT TIMING Note 1: Parenthesis data indicates programmable reference divider data. Data shifted into register on clock rising edge. Data is shifted in MSB first. Note Data to Clock Set-Up Time cs t ...

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Typical Application Example Operational Notes: VCO is assumed AC coupled increases impedance so that VCO output power is provided to the load rather than the PLL. Typical values are 10 IN power level impedance ranges ...

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Application Information A block diagram of the basic phase locked loop is shown in Figure 1 . FIGURE 1. Basic Charge Pump Phase Locked Loop LOOP GAIN EQUATIONS A linear control system model of the phase feedback for a PLL ...

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Application Information margin. This implies that another resistor of equal value to R2 will need to be switched in parallel with R2 during the initial lock period. We must also insure that the magnitude of the open loop gain, H(s)G(s) ...

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Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead (0.173" Wide) Thin Shrink Small Outline Package (TM) Order Number LMX2330LTM, LMX2331LTM or LMX2332LTM Order Number LMX2330LTMX, LMX2331LTMX or LMX2332LTMX For Tape and Reel (2500 units per reel) NS Package Number ...

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Physical Dimensions Order Number LMX2330LSLBX, LMX2331LSLBX or LMX2332LSLBX www.national.com inches (millimeters) unless otherwise noted (Continued) 24-Pin Chip Scale Package For Tape and Reel (2500 Units per Reel) NS Package Number SLB24A 22 ...

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... NATIONALS 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 ...

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