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參數資料
| 型號： | LTC6412IUF#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/24頁 |
| 文件大小： | 0K |
| 描述： | IC VGA ANLG-CNTRL 31DB 24-QFN |
| 標準包裝： | 2,500 |
| 放大器類型： | 可變增益 |
| 電路數： | 1 |
| 輸出類型： | 差分 |
| -3db帶寬： | 800MHz |
| 電流 - 電源： | 110mA |
| 電流 - 輸出 / 通道： | 70mA |
| 電壓 - 電源，單路/雙路(±)： | 3 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 24-QFN 裸露焊盤（4x4） |
| 包裝： | 帶卷 (TR) |
LTC6412
1
6412fa
TYPICAL APPLICATION
DESCRIPTION
800MHz, 31dB Range
Analog-Controlled VGA
The LTC
6412 is a fully differential variable gain amplier
with linear-in-dB analog gain control. It is designed for
AC-coupled operation in IF receiver chains from 1MHz
to 500MHz. The part has a constant OIP3 across a wide
output amplitude range and across the 31dB gain control
range. The output noise (NF + Gain) is also at versus gain
to provide a uniform spurious-free dynamic range (SFDR)
>120dB over the full gain control range at 240MHz.
The LTC6412 is ideal for interfacing with the LT
5527 and
LT5557 downconverting mixers, LTC6410-6 IF amplier
and the LTC6400/LTC6401/LTC6416 ADC drivers for use
in 12-, 14-, and 16-bit ADC applications.
The LTC6412 recovers quickly from an overdrive condition,
and the EN pin allows for a fast output signal disable to
protect sensitive downstream components. Asserting the
SHDN pin reduces the current consumption below 1mA
for power-down or sleep modes.
3.3V Fully Differential 240MHz IF Receiver Chain with 31dB Gain Control
FEATURES
APPLICATIONS
n 800MHz –3dB Small-Signal Bandwidth
n Continuously-Adjustable Gain Control
n –14dB to +17dB Linear-in-dB Gain Range
n 35dBm OIP3 at 240MHz Across All Gain Settings
n 10dB Noise Figure at Maximum Gain
n (IIP3 – NF) = +8dBm at 240MHz Across All Gains
n 2.7nV/√Hz Input Referred Noise
n Differential Inputs and Outputs
n 50Ω Input Impedance Across all Gains
n Single Supply Operation from 3V to 3.6V
n 110mA Supply Current
n 4mm
× 4mm × 0.75mm 24-Pin QFN Package
n IF Signal Chain Automatic Gain Control (AGC)
n 2.5G and 3G Cellular Basestation Transceivers
n WiMAX, WiBro, WLAN Receivers
n Satellite and GPS Receiver IF
V
CC
SHDN
EN
GND
V
CM
V
REF
DECL1
DECL2
–V
G
+V
G
+IN
10nF
0.1μF
BPF
VCM
GND
6412 TA01
VDD
LTC2208
0.1μF
3.3V
1nF
0.1μF
180nH
3.3V
+OUT
–OUT
AIN
+
AIN
–
–OUT
+OUT
10nF
0.1μF
GAIN CONTROL
(+ SLOPE MODE)
IF INPUT
+IN V+
V–
VCM
LTC6400-8
–IN
LTC6412
–IN
2.2μF
VGA Gain vs Frequency
Over Gain Control Range
FREQUENCY (MHz)
–20
GAIN
(dB)
–10
0
10
20
1
100
1000
10000
6412 G01
–30
10
GMAX
GMIN
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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相關代理商/技術參數 |
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| LTC6416 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:2 GHz Low Noise Differential 16-Bit ADC Buffer |
| LTC6416CDDB#TRMPBF | 功能描述:IC ADC BUFFER 16BIT DIFF 10-DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應商設備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LTC6416CDDB#TRPBF | 功能描述:IC ADC BUFFER 16BIT DIFF 10-DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標準包裝:73 系列:Over-The-Top® 放大器類型:通用 電路數:4 輸出類型:滿擺幅 轉換速率:0.07 V/µs 增益帶寬積:200kHz -3db帶寬:- 電流 - 輸入偏壓:1nA 電壓 - 輸入偏移:285µV 電流 - 電源:50µA 電流 - 輸出 / 通道:25mA 電壓 - 電源，單路/雙路(±):2 V ~ 44 V，±1 V ~ 22 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-WFDFN 裸露焊盤 供應商設備封裝:16-DFN-EP（5x3） 包裝:管件 |
| LTC6416CDDB-TRMPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:2 GHz Low Noise Differential 16-Bit ADC Buffer |
| LTC6416CDDB-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:2 GHz Low Noise Differential 16-Bit ADC Buffer |
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