LMX2531

www.ti.com

SNAS252S – OCTOBER 2005 – REVISED DECEMBER 2014

7 Specifications

7.1 Absolute Maximum Ratings

over operating free-air temperature range (unless otherwise noted)

(1) (2)

MIN

MAX

UNIT

(VccDIG, VccVCO,

Power Supply Voltage

–0.3

3.5

V

VccBUF, VccPLL)

All other pins

Power Supply Voltage

–0.3

3.0

V

(Except Ground)

Lead Temperature (solder 4 sec.)

260

°C

Junction Temperature

125

°C

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)

If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and

specifications.

7.2 ESD Ratings

VALUE

UNIT

±500

Electrostatic discharge

V

Charged-device model (CDM), per JEDEC specification JESD22-

±250

(1)

JEDEC document JEP155 states that 500-V HBM allows safe manufacturing with a standard ESD control process. Manufacturing with

less than 500-V HBM is possible with the necessary precautions.

(2)

JEDEC document JEP157 states that 250-V CDM allows safe manufacturing with a standard ESD control process. Manufacturing with

less than 250-V CDM is possible with the necessary precautions.

7.3 Recommended Operating Conditions

over operating free-air temperature range (unless otherwise noted)

MIN

NOM

MAX

UNIT

Power Supply Voltage

2.8

3.0

3.2

V

(VccDig, VccVCO, VccBUF)

Serial Interface and Power Control Voltage

0

2.75

V

–40

85

°C

(1)

Maximum Allowable Temperature Drift for Continuous Lock is how far the temperature can drift in either direction from the value it was

at the time that the R0 register was last programmed, and still have the part stay in lock. The action of programming the R0 register,

even to the same value, activates a frequency calibration routine. This implies that the part will work over the entire frequency range, but

if the temperature drifts more than the maximum allowable drift for continuous lock, then it will be necessary to reload the R0 register to

ensure that it stays in lock. Regardless of what temperature the part was initially programmed at, the temperature can never drift outside

the frequency range of –40°C

7.4 Thermal Information

LMX2531

LMX2531

NJH0036D

NJG0036A

UNIT

36 PINS

36 PINS

Junction-to-ambient thermal resistance

35.5

35.5

°C/W

Junction-to-board characterization parameter

9.1

9.1

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report (SPRA953).

Copyright © 2005–2014, Texas Instruments Incorporated

Submit Documentation Feedback

5

Product Folder Links: LMX2531