Position: Home > DataSheet > Index L > LMX Series > LMX2354, LMX2354LSLB, LMX2354SLBA/X

Low Cost Custom Prototype PCB Manufacturer

LMX2354, LMX2354LSLB, LMX2354SLBA/X

Table of contents:
Info of LMX2354
Info of LMX2354LSLB
Info of LMX2354SLBA/X

LMX2354, LMX2354LSLB, LMX2354SLBA/X Selling Leads, Datasheet

MFG:NSC Package Cooled:QFN D/C:06+

LMX2354, LMX2354LSLB, LMX2354SLBA/X Picture

LMX2354, LMX2354LSLB, LMX2354SLBA/X Datasheet download

Five Points

Part Number: LMX2354

MFG: NSC

Package Cooled: QFN

D/C: 06+

Attentive hint

Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.

How to buy ?

How long will receive a response.

Top Sellers:

TOP

LMX2354 General Description

The LMX2354 is part of a family of monolithic integrated fractional N/Integer N frequency synthesizers designed to be used in a local oscillator subsystem for a radio transceiver. It is fabricated using National's 0.5 µ ABiC V silicon BiCMOS process. The LMX2354 contains quadruple modulus prescalers along with modulo 15 or 16 fractional compensation circuitry in the RF divider. The LMX2354 provides a continuous divide ratio of 80 to 32767 in 16/17/20/21 (1.2 GHz2.5 GHz) fractional mode and 40 to 16383 in 8/9/12/13 (550 MHz1.2 GHz) fractional mode. The IF circuitry for the LMX2354 contains an 8/9 prescaler, and is fully programmable.

Using a fractional N phase locked loop technique, the LMX2354 can generate very stable low noise control signals for UHF and VHF voltage controlled oscillators (VCOs). For the RF PLL, a highly flexible 16 level programmable charge pump supplies output current magnitudes from 100 µA to 1.6 mA. Two uncommitted CMOS outputs can be used to provide external control signals, or configured to FastLock mode. Serial data is transferred into the LMX2354 via a three wire interface (Data, LE, Clock). Supply voltage can range from 2.7V to 5.5V. The LMX2354 family features very low current consumption; typically LMX2354 (2.5 GHz) - 7.0 mA. The LMX2354 are available in a 24-pin TSSOP surface mount plastic package and 24-pin CSP.

LMX2354 Maximum Ratings

TR>

Parameter	Symbol	Value			Unit
Parameter	Symbol	Min	Typ	Max	Unit
Power Supply Voltage	VCCRF	−0.3		6.5	V
	VCCIF
	VpRF
	VpIF
Voltage on any pin with GND = 0V	Vi	−0.3		VCC + 0.3	V
Storage Temperature Range	Ts	−65		+150	v
Lead Temperature (Solder 4 sec.)	TL			+260

LMX2354 Features

Pin compatible/functional equivalent to the LMX2350
Enhanced Low Noise Fractional Engine
2.7V to 5.5V operation
Low current consumption LMX2354: ICC = 7 mA typical at 3V
Programmable or logical power down mode: ICC = 5 µA typical at 3V
Modulo 15 or 16 fractional RF N divider supports ratios of 1, 2, 3, 4, 5, 8, 15, or 16
Programmable charge pump current levels RF 100 µA to 1.6 mA in 100 µA steps F 100 µA or 800 µA
Digital filtered lock detect
Available in 24-pin TSSOP and 24-pin CSP

LMX2354 Typical Application

Portable wireless communications (PCS/PCN, cordless)
Dual mode cellular telephone systems
Zero blind slot TDMA systems
Spread spectrum communication systems (CDMA)
Cable TV Tuners (CATV)

LMX2354 Connection Diagram

Hotspot Suppliers Product

Product List A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9

MT58L64L18CT-10

Price: 4-6 USD

MT58L64L18CT-10 TQFP100
DL-7140-211M

Price: 5-6.5 USD

DL-7140-211M laser tube
74LVC74APG

Price: 4-5 USD

74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2

Price: 6.5-8 USD

CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX

Price: 0.284-0.286 USD

PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2

Price: 1-2 USD

IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB

Price: 1-2 USD

a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1

Price: 0.124-0.2 USD

PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L

Price: 0.177-0.178 USD

RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A

Price: 0.053-0.055 USD

STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013

Price: 1.45-1.5 USD

STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B

Price: 0.073-0.075 USD

SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components