Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

LMX2335U Datasheet(PDF) 1 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part No. LMX2335U
Description  PLLatinum Ultra Low Power Dual Frequency Synthesizer for RF Personal Communications
Download  48 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  NSC [National Semiconductor (TI)]
Homepage  http://www.national.com
Logo 

LMX2335U Datasheet(HTML) 1 Page - National Semiconductor (TI)

 
Zoom Inzoom in Zoom Outzoom out
 1 / 48 page
background image
LMX2335U/LMX2336U
PLLatinumUltra Low Power Dual Frequency
Synthesizer for RF Personal Communications
LMX2335U
1.2 GHz/1.2 GHz
LMX2336U
2.0 GHz/1.2 GHz
General Description
The LMX2335U and LMX2336U devices are high perfor-
mance frequency synthesizers with integrated dual modulus
prescalers. The LMX2335U and LMX2336U devices are
designed
for
use
in
applications
requiring
two
RF
phase-locked loops.
A 64/65 or a 128/129 prescale ratio can be selected for each
RF synthesizer. Using a proprietary digital phase locked loop
technique, the LMX2335U and LMX2336U devices generate
very stable, low noise control signals for the RF voltage
controlled oscillators. Both RF synthesizers include a
two-level programmable charge pump. The RF1 synthesizer
has dedicated Fastlock circuitry.
Serial data is transferred to the devices via a three wire
interface (Data, LE, Clock). Supply voltages from 2.7V to
5.5V are supported. The LMX2335U and the LMX2336U
feature very low current consumption:
LMX2335U (1.2 GHz)– 3.0 mA, LMX2336U (2.0 GHz)–
3.5 mA at 3.0V.
The LMX2335U device is available in 16-pin TSSOP, and
16-pin Chip Scale Package (CSP) surface mount plastic
packages. The LMX2336U device is available in 20-Pin
TSSOP, 24-Pin CSP, and 20-Pin UTCSP surface mount
plastic packages.
Features
n
Ultra Low Current Consumption
n
Upgrade and Compatible to the LMX2335L and
LMX2336L devices
n
2.7V to 5.5V operation
n
Selectable Synchronous or Asynchronous Powerdown
Mode:
I
CC-PWDN = 1 µA typical at 3.0V
n
Selectable Dual Modulus Prescaler
RF1: 64/65 or 128/129
RF2: 64/65 or 128/129
n
Selectable Charge Pump TRI-STATE® Mode
n
Programmable Charge Pump Current Levels
RF1 and RF2: 0.95 or 3.8 mA
n
Selectable FastlockMode for the RF1 Synthesizer
n
Push-Pull Analog Lock Detect Mode
n
LMX2335U is available in 16-Pin TSSOP and 16-Pin
CSP
n
LMX2336U is available in 20-Pin TSSOP, 24-Pin CSP,
and 20-Pin UTCSP
Applications
n
Mobile Handsets
(GSM, GPRS, W-CDMA, CDMA, PCS, AMPS, PDC,
DCS)
n
Cordless Handsets (DECT, DCT)
n
Wireless Data
n
Cable TV Tuners
Thin Shrink Small Outline Package (MTC16)
Thin Shrink Small Outline Package (MTC20)
10136787
10136780
Chip Scale Package (SLB16A)
Chip Scale Package (SLB24A)
Ultra Thin Chip Scale Package
(SLE20A)
10136788
10136781
10136795
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
Fastlock, MICROWIREand PLLatinumare trademarks of National Semiconductor Corporation.
November 2002
© 2002 National Semiconductor Corporation
DS101367
www.national.com


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48 


Datasheet Download




Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn