Datasheet

LMX2541SQ2060E, LMX2541SQ2380E
LMX2541SQ2690E, LMX2541SQ3030E
LMX2541SQ3320E, LMX2541SQ3740E
www.ti.com SNOSB31I –JULY 2009–REVISED FEBRUARY 2013
PIN DESCRIPTIONS (continued)
Pin # Name Type Description
Software controllable multiplexed CMOS output.
20 Ftest/LD Output
Can be used to monitor PLL lock condition.
Oscillator input signal. If not being used with an external crystal, this input should be AC
21 OSCin High-Z Input
coupled.
Complementary oscillator input signal. Can also be used with an external crystal. If not
22 OSCin* High-Z Input
being used with an external crystal, this input should be AC coupled.
23 VccOSCin Supply Supply for the OSCin buffer.
24 RFoutEN Input Software programmable output enable pin.
Supply
25 VccFRAC Power Supply for the PLL fractional circuitry.
(LDO Input)
26 VregFRAC LDO Output Regulated power supply used for the fractional delta-sigma circuitry.
27 GND GND
28 VccDig Supply Supply for digital circuitry, such the MICROWIRE.
29 VccBias Supply Supply for Bias circuitry that is for the whole chip.
30 Bypass Bypass Put a cap to the VccBias pin.
31 VccDiv Supply Supply for the output divider
32 DATA High-Z Input MICROWIRE serial data input. High impedance CMOS input.
MICROWIRE clock input. High impedance CMOS input.
33 CLK High-Z Input
This pin is used for the digital FSK modulation feature.
34 LE High-Z Input MICROWIRE Latch Enable input. High impedance CMOS input.
35 NC NC No connect.
36 RFout RF Output RF output. Must be AC coupled if used.
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
Absolute Maximum Ratings
(1)(2)(3)(4)
Parameter Symbol Ratings Units
Power Supply Voltage Vcc -0.3 to 3.6 V
Input Voltage to pins other than Vcc Pins
V
IN
-0.3 to (Vcc+0.3) V
IN
(5)
Storage Temperature
T
STG
-65 to 150 °C
Range
Lead Temperature (solder 4 sec.) T
L
+ 260 °C
(1) “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is intended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test
conditions, see the Electrical Characteristics. The guaranteed specifications apply only to for the test conditions listed.
(2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/Distributors for availability and
specifications.
(3) This device is has a ESD rating of ≥ 2500 V Human Body Model (HBM), ≥ 1750 V Charged Device Model (CDM), and ≥400 V Machine
Model (MM). It should only be assembled and handled in ESD-free workstations.
(4) Stresses in excess of the absolute maximum ratings can cause permanent or latent damage to the device. These are absolute stress
ratings only. Functional operation of the device is only implied at these or any other conditions in excess of those given in the
(5) Never to exceed 3.6 V.
Recommended Operating Conditions
Parameter Symbol Min Typ Max Units
Power Supply Voltage
Vcc 3.15 3.3 3.45 V
(All Vcc Pins)
Ambient Temperature T
A
-40 +85 °C
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Product Folder Links: LMX2541SQ2060E LMX2541SQ2380E LMX2541SQ2690E LMX2541SQ3030E
LMX2541SQ3320E LMX2541SQ3740E