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LMX2492QRTWTQ1 bảng dữ liệu(HTML) 1 Page - Texas Instruments

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Vcc (x5)
GND (x3)
Fin
Fin*
OSCin
R Divider
(16 bit)
Charge
Pump
CPout
MICROWIRE
Interface
CLK
LE
DATA
CE
GND/OSCin*
2X
Vcp
MUX
MUXout
MOD
TRIG1
TRIG2
Modulation
Generator
N Divider
(18 bit)
6'
Compensation
(24 bit)
18 :
68 :
R2_LF
C2_LF
C1_LF
51 :
51 :
36 :
Phase
Comp
51 :
18 :
18 :
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LMX2492, LMX2492-Q1
SNAS624B – MARCH 2014 – REVISED MAY 2015
LMX2492/LMX2492-Q1 14 GHz Low Noise Fractional N PLL with Ramp/Chirp Generation
1 Features
3 Description
The
LMX2492/92-Q1
is
a
low
noise
14
GHz
1
-227 dBc/Hz Normalized PLL Noise
wideband delta-sigma fractional N PLL with ramp and
500 MHz - 14 GHz Wideband PLL
chirp generation. It consists of a phase frequency
3.15 - 5.25 V Charge Pump PLL Supply
detector, programmable charge pump, and high
frequency
input
for
the
external
VCO.
The
Versatile Ramp / Chirp Generation
LMX2492/92-Q1 supports a broad and flexible class
200 MHz Max Phase Detector Frequency
of ramping capabilities, including FSK, PSK, and
FSK / PSK Modulation Pin
configurable piecewise linear FM modulation profiles
of up to 8 segments. It supports fine PLL resolution
Digital Lock Detect
and fast ramp with up to a 200 MHz phase detector
Single 3.3 V Supply Capability
rate. The LMX2492/92-Q1 allows any of its registers
Automotive 125°C Q100 Grade 1 Qualification
to be read back. The LMX2492/92-Q1 can operate
Non-Automotive (LMX2492) Option
with a single 3.3 V supply. Moreover, supporting up to
5.25 V charge pump can eliminate the need of
external amplifier, leading to a simpler solution with
2
Applications
improved phase noise performance.
Automotive FMCW Radar
Military Radar
Device Information
Microwave Backhaul
PART NUMBER
PACKAGE
BODY SIZE (NOM)
LMX2492-Q1RTW
WQFN (24)
4.00 mm x 4.00 mm
Test and Measurement
LMX2492RTW
WQFN (24)
4.00 mm x 4.00 mm
Satellite Communications
Wireless Infrastructure
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
Sampling Clock for High Speed ADC/DAC
4 Simplified Schematic
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.


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Texas Instruments
LMX2492 TI1-LMX2492 Datasheet
1Mb / 41P
[Old version datasheet]   -227 dBc/Hz Normalized PLL Noise
LMX2492-Q1RTW TI-LMX2492-Q1RTW Datasheet
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[Old version datasheet]   LMX2492/LMX2492-Q1 14 GHz Low Noise Fractional N PLL with Ramp/Chirp Generation
LMX2492-Q1 TI-LMX2492-Q1_15 Datasheet
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[Old version datasheet]   LMX2492/LMX2492-Q1 14 GHz Low Noise Fractional N PLL with Ramp/Chirp Generation
LMX2492RTW TI-LMX2492RTW Datasheet
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[Old version datasheet]   LMX2492/LMX2492-Q1 14 GHz Low Noise Fractional N PLL with Ramp/Chirp Generation
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