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參數(shù)資料
| 型號(hào)： | MAX2102 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 16-Bit Buffers/Drivers With 3-State Outputs 48-TVSOP -40 to 85 |
| 中文描述： | 直接變頻調(diào)諧器IC，適合數(shù)字DBS應(yīng)用 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大小： | 151K |
| 代理商： | MAX2102 |
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M
Direc t-Conversion Tuner ICs for
Digital DBS Applic ations
10
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V
CC
28
27
26
25
24
23
22
21
20
56
33
19
18
17
16
15
0.22
μ
F
0.22
μ
F
22pF
22pF
10pF
1000pF
22
10pF
2
1
3
4
5
6
7
8
9
10
11
12
13
14
IOUT
GND
RFIN
RFIN
GND
GND
V
CC
V
CC
V
CC
V
CC
AGC
CONTROL
V
CC
100
LOAD
AGC
GND
GND
QOUT
V
CC
V
CC
V
CC
V
CC
PRESCALER
OUTPUT
LO
INPUT
(50
SOURCE)
MODULUS
CONTROL
V
CC
MOD
PSOUT
LO
LO
GND
V
CC
PSGND
V
CC
GND
IDC
IDC
QDC
QDC
10pF
1000pF
V
CC
22pF
22pF
22pF
22pF
51
0.1
μ
F
0.1
μ
F
10pF
47
μ
F
0.1
μ
F
47
μ
F
RF
INPUT
(50
SOURCE)
MAX2102
MAX2105
2k
100
LOAD
0.1
μ
F
Figure 1. Typical Operating Circuit
Detailed Desc ription
The MAX2102/MAX2105 down-convert signals in the
range 950MHz to 2150MHz directly to baseband I/Q
signals. They are targeted for digital DBS tuner applica-
tions where a direct downconversion provides a cost
savings over prior-art, multiple-conversion approaches.
However, the MAX2102/MAX2105 are applicable to any
system requiring a broadband I/Q downconversion.
Internally, the MAX2102 and MAX2105 consist of a
broadband front-end variable gain stage, a quadrature
downconverter, an oscillator buffer, high-linearity I and
Q baseband amplifiers, and offset correction amplifiers.
The MAX2102 features a front-end AGC dynamic range
of over 50dB, while the MAX2105 provides a front-end
AGC dynamic range of over 41dB. Specifically, the
AGC control can be adjusted so that a sine wave at
RFIN ranging in power from -69dBm to -19dBm
(MAX2102) or -60dBm to -19dBm (MAX2105) will pro-
duce a sine wave at IOUT and QOUT at 500mVp-p lev-
els. The noise figure is lowest when the AGC is at its
maximum gain setting (see Typical Operating
Characteristics). The VSWR at RFIN is unaffected by
the AGC setting.
The local-oscillator (LO) buffer accepts an external LO
signal at LO,
LO
, and internally limits the signal to pro-
vide a consistent on-chip LO level. The LO input drive
level should be maintained within the specified limits
(see Applications Informationsection).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX2102-MAX2105 | Direct-Conversion Tuner ICs for Digital DBS Applications |
| MAX2105 | 16-Bit Buffers/Drivers With 3-State Outputs 48-TSSOP -40 to 85 |
| MAX2105CWI | Direct-Conversion Tuner ICs for Digital DBS Applications |
| MAX2104 | 16-Bit Buffers/Drivers With 3-State Outputs 48-TSSOP -40 to 85 |
| MAX2104CCM | PLASTIC ENCAPSULATED DEVICES |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2102/MAX2105 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Direct-Conversion Tuner ICs for Digital DBS Applications |
| MAX2102_1 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Evaluation Kit |
| MAX2102CWI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX2102CWI.B50030 | 制造商:Maxim Integrated Products 功能描述: |
| MAX2102CWI+ | 功能描述:調(diào)諧器 RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數(shù): 工作電源電壓: 最小工作溫度: 最大工作溫度: |
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