Datasheet > UTCL8115

UTCL8115

更新时间： 2024-09-16 21:54:07

品牌	Logo	应用领域
友顺 - UTC		开关控制器
页数	文件大小	规格书
13页	175K
描述
FET BIAS CONTROLLER WITH POLARISATION SWITCH AND TONE DETECTION

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UTCL8115 数据手册

UTCL8115

LINEAR INTEGRATED CIRCUIT

FET BIAS CONTROLLER WITH

POLARISATION SWITCH AND

TONE DETECTION

DESCRIPTION

The UTC L8115 is designed to meet the bias

requirements of GaAs and HEMT FETs commonly used in

satellite receiver LNBs, PMR, cellular telephones etc. with

a minimum of external components.

SSOP-16(150mil)

With the addition of two capacitors and a resistor the

devices provide drain voltage and current control for three

external grounded source FETs, generating the regulated

negative rail required for FET gate biasing whilst operating

from a single supply. This negative bias, at -2.8 volts, can

also be used to supply other external circuits.

The UTC L8115 includes bias circuits to drive up to three

external FETs. A control input to the device selects either

one of two FETs as operational, the third FET is

permanently active. This feature is normally used as an

LNB polarization switch. Also specific to Universal LNB

applications is the 22kHz tone detection and logic output

feature which is used to enable high and low band

frequency switching.

SSOP-20(150mil)

Drain current setting of the UTC L8115 is user selectable

over the range 0 to 15mA, this is achieved with addition of

a single resistor. The UTC L8115 gives 2.2 volts drain

whilst.

FEATURES

*Provides bias for GaAs and HEMT FETs.

*Drives up to three FETs.

*Dynamic FET protection.

*Drain current set by external resistor.

*Regulated negative rail generator requires only 2 external

capacitors.

*Choice in drain voltage

*Wide supply voltage range

*Polarisation switch for LNBs

*22KHz tone detection for band switching.

*Tone detector ignores unwanted signals

*Support fr MIMIC, FET and Bipolar local oscillator devices

APPLICATIONS

*Satellite receiver LNBs

*Private mobile radio(PMR)

*Cellular telephones

UTC UNISONIC TECHNOLOGIES CO., LTD.

QW-R123-005,B

12 3 4 5 6 7...13

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