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參數(shù)資料
| 型號： | MAX2046ETJ-T |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | High-Gain Vector Multipliers |
| 中文描述： | TELECOM, CELLULAR, BASEBAND CIRCUIT, QCC32 |
| 封裝： | 5 X 5 MM, 0.80 MM HEIGHT, TQFN-32 |
| 文件頁數(shù)： | 17/22頁 |
| 文件大?。?/td> | 999K |
| 代理商： | MAX2046ETJ-T |
Detailed Description
The MAX2045/MAX2046/MAX2047 provide vector
adjustment through the differential I/Q amplifiers. Each
part is optimized for separate frequency ranges:
MAX2045 for f
IN
= 2040MHz to 2240MHz, MAX2046 for
f
IN
= 1740MHz to 2060MHz, and MAX2047 for f
IN
=
790MHz to 1005MHz. All three devices can be inter-
faced using current- and/or voltage-mode DACs.
The MAX2045/MAX2046/MAX2047 accept differential
RF inputs, which are internally phase shifted 90
degrees to produce differential I/Q signals. The phase
and magnitude of each signal can then be adjusted
using the voltage- and/or current-control inputs.
Figure 1 shows a typical operating circuit when using
both current- and voltage-mode DACs. When using
only one of the two, leave the unused I/Q inputs open.
RF Ports
The RF input and output ports require external matching
for optimal performance. See Figures 1 and 2 for appro-
priate component values. The output ports require
external biasing. In Figures 1 and 2, the outputs are
biased through the balun (T2). The RF input ports can
be driven differentially or single ended (Figures 1, 2)
using a balun. The matching values for the MAX2045/
MAX2046 were set to be the same during characteriza-
tion. An optimized set of values can be found in the
MAX2045/MAX2046/MAX2047 Evaluation Kit
data
sheet.
I/Q Inputs
The control amplifiers convert a voltage, current, or
voltage and current input to a predistorted voltage that
controls the multipliers. The I/Q voltage-mode inputs
can be operated differentially (Figure 1) or single
ended (Figure 2). A 2.5V reference is provided on-chip
for single-ended operation.
M
High-Gain Vector Multipliers
______________________________________________________________________________________
17
Pin Description
PIN
1
2
3
4
5
6
7
8
NAME
VI1
VI2
VQ1
VQ2
II1
II2
IQ1
IQ2
FUNCTION
Noninverting in-phase voltage-control input. Requires common-mode input voltage (2.5V typ).
Inverting in-phase voltage-control input. Requires common-mode input voltage (2.5V typ).
Noninverting quadrature voltage-control input. Requires common-mode input voltage (2.5V typ).
Inverting quadrature voltage-control input. Requires common-mode input voltage (2.5V typ).
Noninverting in-phase current-control input. This pin can only sink current. It cannot source current.
Inverting in-phase current-control input. This pin can only sink current. It cannot source current.
Noninverting quadrature current-control input. This pin can only sink current. It cannot source current.
Inverting quadrature current-control input. This pin can only sink current. It cannot source current.
2.5V Reference Output. Integrated reference voltage provides a 2.5V output for single-ended voltage-
control applications. For single-ended operation, connect REFOUT to the inverting voltage inputs (VI2,
VQ2).
9
REFOUT
10, 11, 14,
15, 16, 19,
20, 21,
23
–
27, 30,
31, 32
12
13
17, 18
GND
Ground
RFOUT1
RFOUT2
V
CC
Noninverting RF Output
Inverting RF Output
Supply Voltage
22
RBIAS
Bias Setting Resistor. Connect a 280
(
±
1%) resistor from this pin to ground to set the bias current for
the IC.
28
29
RFIN1
RFIN2
Noninverting RF Input
Inverting RF Input
Exposed
Pad
—
Exposed Pad. Exposed pad on the bottom of the IC should be soldered to the ground plane for proper
heat dissipation and RF grounding.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2046EVKIT | 功能描述:射頻開發(fā)工具 RoHS:否 制造商:Taiyo Yuden 產(chǎn)品:Wireless Modules 類型:Wireless Audio 工具用于評估:WYSAAVDX7 頻率: 工作電源電壓:3.4 V to 5.5 V |
| MAX2047 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:High-Gain Vector Multipliers |
| MAX2047ETJ | 功能描述:特殊用途放大器 High-Gain Vector Multiplier RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX2047ETJ+ | 功能描述:特殊用途放大器 High-Gain Vector Multiplier RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX2047ETJ+T | 功能描述:特殊用途放大器 High-Gain Vector Multiplier RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
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