Features: Low Current Consumption
2.25V to 2.75V Operation
Selectable Synchronous or Asynchronous PowerdownMode
Selectable Dual Modulus Prescaler:LMX2430 RF: 8/9 or 16/17LMX2433 RF: 8/9 or 16/17LMX2434 RF: 16/17 or 32/33LMX243x IF: 8/9 or 16/17
Programmable Charge Pump Current LevelsRF and IF: 1 or 4 mA
Fastlock™ Technology with Integrated Timeout Counters
Digital Filtered Lock Detect Output
Analog Lock Detect Output (supports both Push-Pulland Open Drain configurations)
1.8V MICROWIRE Logic Interface
Available in 20-Pin TSSOP and 20-Pin UTCSPApplicationMobile Handsets(GSM, GPRS, W-CDMA, CDMA, PCS, AMPS, PDC,DCS)
Cordless Handsets(DECT, DCT)
Wireless Data
Cable TV TunersPinout
Specifications
| Max PLL Freq |
3600 MHz |
| Max Aux PLL Freq |
1700 MHz |
| Normalized PLL Phase Noise |
-219 dBc/Hz |
| Supply Min |
2.25 Volt |
| Supply Current |
5.2 mA |
| PLL Type |
Integer-N |
| Fastlock |
Yes |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
| PowerWise |
Undefined |
| View Using Catalog |
Power Supply Voltage
Vcc to GND −0.3V to +3.25V
Voltage on any pin to GND (VI)
VImust be < +3.25V −0.3V to Vcc+0.3V
Storage Temperature Range (TS) −65˚C to +150˚C
Lead Temperature (solder 4 s) (TL) +260˚CDescriptionThe LMX2433 devices are high performance frequency synthesizers with integrated dual modulus prescalers. The LMX243x devices are designed for use as RF and IF local oscillators for dual conversion radio transceivers.
A 32/33 or a 16/17 prescale ratio can be selected for the 5.0 GHz LMX2434 RF synthesizer. An 8/9 or a 16/17 prescale ratio can be selected for both the LMX2430 and LMX2433 RF synthesizers. The IF circuitry contains an 8/9 or a 16/17 prescaler. Using a proprietary digital phase locked loop technique, the LMX243x devices generate very stable, low noise control signals for RF and IF voltage controlled oscillators. Both the RF and IF synthesizers include a two-level programmable charge pump. Both the RF and IF synthesizers have dedicated Fastlock circuitry with integrated timeout counters. Furthermore, only a single word write is required to power up and tune the synthesizers to a new frequency.
Serial data is transferred to the devices via a three-wire interface (DATA, LE, CLK). A low voltage logic interface allows direct connection to 1.8V devices. Supply voltages from 2.25V to 2.75V are supported . The LMX243x family features low current consumption:
LMX2430 (3.0 GHz/ 0.8 GHz)-2.8 mA/ 1.4 mA, LMX2433 (3.6 GHz/ 1.7 GHz) -3.2 mA/ 2.0 mA, LMX2434 (5.0 GHz/ 2.5 GHz)-4.6 mA/ 2.4 mA at 2.50V.
The LMX243x devices are available in 20-Pin TSSOP and 20-Pin UTCSP surface mount plastic packages.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LMX2433SLEX |
BICMOS8 |
2 |
12313 |
163 |
0 |
1407500 |
3 |
399381968 |
| LMX2433TM |
BICMOS8 |
2 |
12313 |
163 |
0 |
1407500 |
3 |
399381968 |
| LMX2433TMX |
BICMOS8 |
2 |
12313 |
163 |
0 |
1407500 |
3 |
399381968 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
Design Tools
| Title |
Size in Kbytes |
Date |
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| LMX2433 Evaluation Board Instructions |
479 Kbytes |
22-Mar-2006 |
View Online |
Download |
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| LMX-Utility Evaluation Board: Add features and functionality to the standard evaluation boards, such as amplification, loop filter, and RF functions" |
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View |
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If you have trouble printing or viewing PDF file(s), see Printing Problems.
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More Application Notes
| Title |
Size in Kbytes |
Date |
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| AN-1275: Application Note 1275 Optimizing LMX243x Input Sensitivity Using Simple Matching Techniques |
178 Kbytes |
2-Jun-03 |
Download |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
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LMX2433 Data Sheet
