- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45001 > LTM9005CV-AA#PBF (LINEAR TECHNOLOGY CORP) SPECIALTY ANALOG CIRCUIT, PBGA204 PDF資料下載
參數(shù)資料
| 型號(hào)： | LTM9005CV-AA#PBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 模擬信號(hào)調(diào)理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PBGA204 |
| 封裝： | 22 X 15 MM, 4.32 MM HEIGHT, LEAD FREE, MO-222, LGA-204 |
| 文件頁數(shù)： | 5/24頁 |
| 文件大?。?/td> | 468K |
| 代理商： | LTM9005CV-AA#PBF |
LTM9005
13
9005p
operaTion
Down-Converting Mixer
The mixer stage consists of a high linearity double-bal-
anced mixer, RF buffer amplifier, high speed limiting LO
buffer amplifier and bias/enable circuits. The RF and LO
inputs are both single ended. Low side or high side LO
injection can be used.
The RF input consists of an integrated transformer and a
highlinearitydifferentialamplifier.Theprimaryterminalsof
the transformer are connected to the RF input and ground.
The secondary side of the transformer is internally con-
nected to the amplifier’s differential inputs.
The LO input consists of an integrated transformer and
high speed limiting differential amplifiers. The amplifiers
are designed to precisely drive the mixer for the highest
linearity and the lowest noise figure.
Attenuator
A dual PIN diode with common-cathode connection is
used for continuously variable attenuation. The anodes
are connected to the outputs of the mixer and pulled up
to VCC1 through 100nH inductors. The cathode includes a
series 50Ω resistor to GAIN. See the GAIN Control Input
section for applications information.
First and Second Amplifiers
The amplifiers used in the LTM9005 are low noise and
low distortion fully differential ADC drivers. The ampli-
fiers are fully differential amplifiers with on chip feedback
resistors.
SAW Filter
A high selectivity, surface acoustic wave (SAW) filter is
integrated in the LTM9005.
(Applications to provide additional text)
Band-Pass Filter
An L-C bandpass filter follows the second amplifier to
prevent aliasing and to minimize the noise contribution
of the second amplifier.
(Applications to provide additional text)
Analog to Digital Converter
The analog-to-digital converter (ADC) is a CMOS pipelined
multistep converter. The converter has six pipelined ADC
stages; a sampled analog input will result in a digitized
value five cycles later (see Digital Output Bus Timing). The
CLK input is single-ended. The ADC has two phases of
operation, determined by the state of the CLK input pin.
Each pipelined stage contains an ADC, a reconstruction
DAC and an interstage residue amplifier. In operation, the
ADC quantizes the input to the stage and the quantized
value is subtracted from the input by the DAC to produce a
residue. The residue is amplified and output by the residue
amplifier. Successive stages operate out of phase so that
when the odd stages are outputting their residue, the even
stages are acquiring that residue and visa versa.
When CLK is low, the analog input is sampled differen-
tially directly onto the input sample-and-hold capacitors.
At the instant that CLK transitions from low to high, the
sampled input is held. While CLK is high, the held input
voltage is buffered by the S/H amplifier which drives the
first pipelined ADC stage. The first stage acquires the
output of the S/H during this high phase of CLK. When
CLK goes back low, the first stage produces its residue
which is acquired by the second stage. At the same time,
the input S/H goes back to acquiring the analog input.
When CLK goes back high, the second stage produces its
residue which is acquired by the third stage. An identical
process is repeated for the third, fourth and fifth stages,
resulting in a fifth stage residue that is sent to the sixth
stage ADC for final evaluation.
Each ADC stage following the first has additional range to
accommodate flash and amplifier offset errors. Results
from all of the ADC stages are digitally synchronized such
that the results can be properly combined in the correction
logic before being sent to the output buffer.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTM9005CV-AB#PBF | SPECIALTY ANALOG CIRCUIT, PBGA204 |
| LTM9005IV-AB#PBF | SPECIALTY ANALOG CIRCUIT, PBGA204 |
| LUCW3000ACN-TR | PLL FREQUENCY SYNTHESIZER, 2200 MHz, PDSO14 |
| LUCW3000ACN | PLL FREQUENCY SYNTHESIZER, 2200 MHz, PDSO14 |
| LUCW3000ACN | PLL FREQUENCY SYNTHESIZER, 2200 MHz, PDSO14 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTM9005GD | 功能描述:LED 電路板指示器 Vert LED Assmbly 5mm Green RoHS:否 制造商:Lumex LED 大小:3 mm 照明顏色:Green 波長:565 nm 光強(qiáng)度:30 mcd 安裝類型:SMD/SMT 顯示角:60 deg 封裝:Reel |
| LTM9006-14 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:14-Bit, 65Msps/40Msps/25Msps Low Power Octal ADCs |
| LTM9006CY-14#PBF | 制造商:Linear Technology 功能描述:IC ADC 14BIT SPI/SRL 25M 140-BGA 制造商:Linear Technology 功能描述:ADC 8CH 1.8V 14BIT 25MSPS 制造商:Linear Technology 功能描述:ADC, 14BIT, 25MSPS, SPI, BGA-140; Resolution (Bits):14bit; Sampling Rate:25MSPS; Supply Voltage Type:Single; Supply Voltage Min:1.7V; Supply Voltage Max:1.9V; Supply Current:175mA; Digital IC Case Style:BGA; No. of Pins:140 ;RoHS Compliant: Yes |
| LTM9006IY-14#PBF | 制造商:Linear Technology 功能描述:IC ADC 14BIT SPI/SRL 25M 140-BGA 制造商:Linear Technology 功能描述:MS-uModule, 14-bit, 25Msps, 1.8V Octal ADC, Serial LVDS Outputs |
| LTM9007-14 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:14-Bit, 65Msps/40Msps/25Msps Low Power Octal ADCs |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。