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LMX4268

Features: Fully integrated 2.4 GHz CMOS low-IF transceiver Low power consumption On-chip Voltage Controlled Oscillator (VCO) On-chip low noise amplifier (LNA) Open-loop modulation On chip Modulation Gain Amplifier (MGA) On-chip timing control Four digital (5 mA) output ports 0 dBm PA driver outpu...

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SeekIC No. : 004397406 Detail

LMX4268: Features: Fully integrated 2.4 GHz CMOS low-IF transceiver Low power consumption On-chip Voltage Controlled Oscillator (VCO) On-chip low noise amplifier (LNA) Open-loop modulation On chip Modulatio...

LMX4268 Data Sheet

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Part Number:
LMX4268
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Fully integrated 2.4 GHz CMOS low-IF transceiver
Low power consumption
On-chip Voltage Controlled Oscillator (VCO)
On-chip low noise amplifier (LNA)
Open-loop modulation
On chip Modulation Gain Amplifier (MGA)
On-chip timing control
Four digital (5 mA) output ports
0 dBm PA driver output
dual bit rate 0.576 MHz (LRb) / 1.152 MHz (HRb)
sensitivity -96 dBm (LRb) / -93 dBm (HRb)
2.5V operation
Small 44 pin Leadless Leadframe Package


Application

(DCT) Digital Cordless Telecommunications


Specifications

Description
Parameter
Min

Typ
Max
Units
Power Supply Voltage
(Vdd_shield, Vdd_ADC, Vdd_mix, Vdd_LNA, Vdd_ESD,
Vdd_PAdr, Vdd_presc, Vdd_PLL, Vdd_VCO, Vdd_bias, Vdd_dig,
Vdd_RSSI)
Vddmax
-0.3
 -
3.0
V
-
-
0.3
V
Absolute difference between power supplies
Voltage on any pin

Vnmax
-0.3
-
Vdd+0.3
V
Storage Temperature

Tstorage
-40
 -
+150
V
Lead Temp. (solder 4 sec)3
TLead
-
--
+260
V
ESD - human body model 4
VHBM
-
-
2.0
kV
ESD - machine model 4
VMM
 -
-
200
°C



Description

The LMX4268 is a radio transceiver integrated circuit optimized for the Digital Cordless Telecommunications (DCT) system. The transceiver, when combined with a power amplifier and a Tx/Rx switch, implements a complete 2.4GHz ISM band digital radio transceiver compliant with the FCC rules part 15. The LMX4268 interfaces directly to National Semiconductor's SC144XX DCT family of baseband processors. The LMX4268 integrates a complete transmitter, consisting of a phase locked loop, VCO and PA driver.

The receiver contains LNA, quadrature downconverter, polyphase filter, automatic gain control and demodulator. The LMX4268 operates from a single 2.5V supply. The LMX4268 is manufactured in National's 0.25µm CMOS technology, and is packaged in a 44 pin LLP package.




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