LMX1601TMX Datasheet, PDF (1/18 Pages) Texas Instruments – LMX1600 2.0 GHz/500 MHz, LMX1601 1.1 GHz/500 MHz, LMX1602 1.1 GHz/1.1 GHz PLLatinum™ Low Cost Dual Frequency Synthesizer

OBSOLETE
LMX1600, LMX1601, LMX1602
www.ti.com
SNAS017F – MARCH 1998 – REVISED APRIL 2013
LMX1600 2.0 GHz/500 MHz, LMX1601 1.1 GHz/500 MHz, LMX1602 1.1 GHz/1.1 GHz
PLLatinum™ Low Cost Dual Frequency Synthesizer
Check for Samples: LMX1600, LMX1601, LMX1602
FEATURES
1
•23 V_CC = 2.7V to 3.6V Operation
• Low Current Consumption:
– 4 mA @ 3V (Typ) for LMX1601
– 5 mA @ 3V (Typ) for LMX1600 or LMX1602
• PLL Powerdown Mode: I_CC = 1 µA Typical
• Digital Filtered Lock Detects
• Dual Modulus Prescaler:
– 2 GHz/500 MHz Option: (Main) 32/33 (Aux)
8/9
– 1.1 GHz/500 MHz Option: (Main) 16/17 (Aux)
8/9
– 1.1 GHz/1.1 GHz Option: (Main) 16/17 (Aux)
16/17
APPLICATIONS
• Cordless / Cellular / PCS Phones
• Other Digital Mobile Phones
DESCRIPTION
The LMX1600/01/02 is part of a family of monolithic
integrated dual frequency synthesizers designed to
be used in a local oscillator subsystem for a radio
transceiver. It is fabricated using TI's 0.5u ABiC V
silicon BiCMOS process.
The LMX1600/01/02 contains two dual modulus
prescalers, four programmable counters, two phase
detectors and two selectable gain charge pumps
necessary to provide the control voltage for two
external loop filters and VCO loops. Digital filtered
lock detects for both PLLs are included. Data is
transferred into the LMX1600/01/02 via a
MICROWIRE serial interface (Data, Clock, LE).
V_CC supply voltage can range from 2.7V to 3.6V. The
LMX1600/01/02 features very low current
consumption - typically 4.0 mA at 3V for LMX1601,
5.0 mA at 3V for LMX1600 or LMX1602. Powerdown
for the PLL is hardware controlled.
The LMX1600/01/02 is available in a 16 pin TSSOP
surface mount plastic package.
Functional Block Diagram
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PLLatinum is a trademark of Texas Instruments.
2
All other trademarks are the property of their respective owners.
3
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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