參數(shù)資料
型號(hào)： LTC4400-2
廠商： Linear Technology Corporation
英文描述： RF Power Controllers with 450kHz Loop BW and 45dB Dynamic Range
中文描述： 射頻功率控制器與450kHz環(huán)路帶寬和45dB的動(dòng)態(tài)范圍
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 186K
代理商： LTC4400-2
1
LTC4400-1/LTC4400-2
RF Power Controllers with
450kHz Loop BW and
45dB Dynamic Range
sn4400 4400fas
FEATURES
DESCRIPTIOU
The LTC
4400-1 is a SOT-23 RF power controller for fast
turn-on RF power amplifiers operating in the 300MHz to
2.7GHz range. Examples include the Hitachi PF08109B,
PF08122B, PF08123B, PF08107B and RF Micro Devices
RF3108. For slow turn-on RF power amplifiers refer to the
LTC4401-1/LTC4401-2.
RF power is controlled by driving the RF amplifier power
control pin and sensing the resultant RF output power via
a directional coupler or capacitive tap. The RF input
voltage is peak detected using an on-chip Schottky diode.
This detected voltage is compared to the DAC voltage at
the PCTL pin to control the output power. The RF power
amplifier is protected against high power control pin
voltages.
Internal and external offsets are cancelled over tempera-
ture by an autozero control loop, allowing accurate low
power programming. The shutdown feature disables the
part and reduces the supply current to <10
μ
A.
A dual control channel version (LTC4400-2) is also
available in an 8-pin MSOP package.
APPLICATIU
TYPICAL APPLICATIOU
I
RF Power Amplifier Control in ThinSOT
TM
Package
I
Internal Schottky Diode Detector with >45dB Range
I
Wide Input Frequency Range:
300MHz to 2.7GHz (LTC4400-1)
300MHz to 2GHz (LTC4400-2)
I
Autozero Loop Cancels Offset Errors and
Temperature Dependent Offsets
I
Wide V
CC
Range: 2.7V to 6V
I
Automatic Bandwidth Control Improves Low Power
Ramp Response
I
Allows Direct Connection to Battery
I
RF Output Power Set by External DAC
I
Internal Frequency Compensation
I
Rail-to-Rail Power Control Output
I
Power Control Signal Overvoltage Protection
I
Low Operating Current: 1mA
I
Low Shutdown Current: 10
μ
A
I
Two Pole PCTL Input Filtering
I
Low Profile (1mm) ThinSOT (LTC4400-1) and
8-Pin MSOP (LTC4400-2) Packages
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
LTC4400-1 Dual Band Cellular Telephone Transmitter
I
GSM/GPRS Cellular Telephones
I
PCS Devices
I
Wireless Data Modems
I
U.S. TDMA Cellular Phones
V
CC
SHDN
PCTL
1
5
2
6
4
3
RF
V
PCA
GND
LTC4400-1
SHDN
DAC
1.8GHz
INPUT
900MHz
INPUT
4400 TA01
0.1
μ
F
0.4pF
50
Li-Ion
V
PC
900MHz
OUTPUT
1.8GHz
OUTPUT
PA MODULE
BAND
SELECT
RF INPUT POWER (dBm)
10
P
O
100
1000
10000
–26 –22–18 –14 –10 –6 –2
2
6
10 14 18
1
4400 TA04
T
A
= 25
°
C
V
CC
= 3.6V
900MHz
1800MHz
LTC4400-1 Detector Characteristics at
900MHz and 1800MHz
相關(guān)PDF資料
PDF描述
LTC4400-2EMS8 RF Power Controllers with 450kHz Loop BW and 45dB Dynamic Range
LTC4412HV Dual 2.6A, 2.5V to 5.5V, Ideal Diodes in 3mm 3mm DFN
LTC4412ES6 Low Loss PowerPathTM Controller in ThinSOT
LTC4412 Low Loss PowerPathTM Controller in ThinSOT
LTC4413 Standalone Linear Li-lon Battery Charger with Thermistor Input
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LTC4400-2EMS8 功能描述:IC RF PWR CNTRL 800MHZ-2GHZ8MSOP RoHS:否 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點(diǎn):四頻帶 封裝/外殼:8-VFBGA 供應(yīng)商設(shè)備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX
LTC4400-2EMS8#PBF 功能描述:IC RF PWR CNTRL 800MHZ-2GHZ8MSOP RoHS:是 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點(diǎn):四頻帶 封裝/外殼:8-VFBGA 供應(yīng)商設(shè)備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX
LTC4400-2EMS8#TR 功能描述:IC RF PWR CNTRL 800MHZ-2GHZ8MSOP RoHS:否 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點(diǎn):四頻帶 封裝/外殼:8-VFBGA 供應(yīng)商設(shè)備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX
LTC4400-2EMS8#TRPBF 功能描述:IC RF PWR CNTRL 800MHZ-2GHZ8MSOP RoHS:是 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點(diǎn):四頻帶 封裝/外殼:8-VFBGA 供應(yīng)商設(shè)備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX
LTC4401-1ES6#TR 功能描述:IC RF POWER CONTROLLER TSOT23-6 RoHS:否 類別:RF/IF 和 RFID >> RF 電源控制器 IC 系列:- 標(biāo)準(zhǔn)包裝:3,000 系列:- RF 型:GSM 頻率:450MHz ~ 2GHz 特點(diǎn):四頻帶 封裝/外殼:8-VFBGA 供應(yīng)商設(shè)備封裝:8-MicroSMD（1.51x1.51） 包裝:帶卷 (TR) 其它名稱:LMV243BLX
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*