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LMX3161VBHX Datasheet

  • LMX3161VBHX

  • Single Chip Radio Transceiver

  • 14頁

  • NSC

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LMX3161 Single Chip Radio Transceiver
PRELIMINARY
November 1999
LMX3161
Single Chip Radio Transceiver
General Description
The LMX3161 Single Chip Radio Transceiver is a monolithic,
integrated radio transceiver optimized for use in a Digital En-
hanced Cordless Telecommunications (DECT) system. It is
fabricated using National鈥檚 ABiC V BiCMOS process
(f
T
= 18 GHz).
The LMX3161 contains phase locked loop (PLL), transmit
and receive functions. The 1.1 GHz PLL block is shared be-
tween transmit and receive section. The transmitter includes
a frequency doubler, and a high frequency buffer. The re-
ceiver consists of a 2.0 GHz low noise mixer, an intermediate
frequency (IF) amplifier, a high gain limiting amplifier, a fre-
quency discriminator, a received signal strength indicator
(RSSI), and an analog DC compensation loop. The PLL,
doubler, and buffers can be used to implement open loop
modulation along with an external VCO and loop filter. The
circuit features on-chip voltage regulation to allow supply
voltages ranging from 3.0V to 5.5V. Two additional voltage
regulators provide a stable supply source to external dis-
crete stages in the Tx and Rx chains.
The IF amplifier, high gain limiting amplifier, and discrimina-
tor are optimized for 110 MHz operation, with a total IF gain
of 85 dB. The single conversion receiver architecture pro-
vides a low cost, high performance solution for communica-
tions systems. The RSSI output may be used for channel
quality monitoring.
The Single Chip Radio Transceiver is available in a 48-pin
7mm X 7mm X 1.4mm PQFP surface mount plastic pack-
age.
Features
n
n
n
n
n
n
n
Single chip solution for DECT RF transceiver
RF sensitivity to 鈭?3 dBm; RSSI sensitivity to 鈭?00 dBm
Two regulated voltage outputs for discrete amplifiers
High gain (85 dB) intermediate frequency strip
Allows unregulated 3.0V鈥?.5V supply voltage
Power down mode for increased current savings
System noise figure 6.5 dB (typ)
Applications
n
n
n
n
Digital Enhanced Cordless Telecommunications (DECT)
Personal wireless communications (PCS/PCN)
Wireless local area networks (WLANs)
Other wireless communications systems
Block Diagram
DS012815-1
MICROWIRE
鈩?/div>
is a trademark of National Semiconductor Corporation.
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS012815
www.national.com

LMX3161VBHX 產(chǎn)品屬性

  • 1,000

  • 集成電路 (IC)

  • 接口 - 驅動器，接收器，收發(fā)器

  • -

  • 收發(fā)器

  • -

  • -

  • 3 V ~ 5.5 V

  • 表面貼裝

  • 48-LQFP

  • 48-LQFP（7x7）

  • 帶卷 (TR)

  • *LMX3161VBHX

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  • 英文版
    RF Modulator/Demodulator
    ETC
  • 英文版
    National Semiconductor [Single Chip Radio Transceiver]
    NSC
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