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參數資料
| 型號： | MAX2120 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Complete, Direct-Conversion Tuner for DVB-S and Free-to-Air Applications |
| 中文描述： | 完備的直接變頻調諧器，用于DVB-S和免費廣播系統(tǒng) |
| 文件頁數： | 1/21頁 |
| 文件大?。?/td> | 316K |
| 代理商： | MAX2120 |
General Description
The MAX2120 low-cost, direct-conversion tuner IC is
designed for satellite set-top and VSAT applications.
The IC is intended for QPSK, Digital Video Broadcast
(DVB-S), DSS, and free-to-air applications.
The MAX2120 directly converts the satellite signals
from the LNB to baseband using a broadband I/Q
downconverter. The operating frequency range extends
from 925MHz to 2175MHz.
The device includes an LNA and an RF variable-gain
amplifier, I and Q downconverting mixers, and baseband
lowpass filters with programmable cutoff frequency
control and digitally controlled baseband variable-gain
amplifiers. Together, the RF and baseband variable-gain
amplifiers provide more than 80dB of gain-control range.
The IC is compatible with virtually all QPSK demodulators.
The MAX2120 includes fully monolithic VCOs, as well as
a complete frequency synthesizer. Additionally, an on-
chip crystal oscillator is provided along with a buffered
output for driving additional tuners and demodulators.
Synthesizer programming and device configuration are
accomplished with a 2-wire serial interface. The IC fea-
tures a VCO autoselect (VAS) function that automatically
selects the proper VCO. For multituner applications, the
device can be configured to have one of two 2-wire
interface addresses. A low-power standby mode is
available whereupon the signal path is shut down while
leaving the reference oscillator, digital interface, and
buffer circuits active, providing a method to reduce
power in single and multituner applications.
The MAX2120 is the most advanced DBS tuner available
today. The low noise figure eliminates the need for an
external LNA. A small number of passive components are
needed to form a complete DVB, DBS, or VSAT RF front-
end solution. The tuner is available in a very small 28-pin
thin QFN package.
Applications
DirecTV and Dish Network DBS
DVB-S
Two-Way Satellite Systems
VSATs
Free-to-Air
Features
925MHz to 2175MHz Frequency Range
Monolithic VCO: No Calibration Required
-75dBm to 0dBm High Dynamic Range
4MHz to 40MHz Integrated Variable BW LP Filters
Single +3.3V ±5% Supply
Low-Power Standby Mode
Multiple 2-Wire Addresses for Multituner
Applications
Differential I/Q Interface
I
2
C 2-Wire Serial Interface
Very Small 28-Pin Thin QFN Package
M
Complete, Direct-Conversion Tuner for DVB-S
and Free-to-Air Applications
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1
19-0832; Rev 0; 6/07
EVALUATION KIT
AVAILABLE
V
G
C
V
X
V
S
V
Q
A
Q
I
RFIN
GC1
VCC_LO
+
÷
IOUT+
QOUT-
VCC_DIG
G
S
19
17
16
3
5
18
4
6
VCC_VCO
REFOUT
15
7
GND
IOUT-
20
2
VCC_RF1
21
IDC+
1
26
24
23
10
12
25
11
13
22
14
27
9
28
8
VCC_RF2
MAX2120
INTERFACE LOGIC
AND CONTROL
DC OFFSET
CORRECTION
LPF BW
CONTROL
DIV2/DIV4
EP
FREQUENCY
SYNTHESIZER
QOUT+
Pin Configuration/
Functional Diagram
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
PKG
CODE
MAX2120CTI+
0°C to +70°C
28 Thin QFN-EP*
T2855+3
*
EP = Exposed paddle.
+
Denotes lead-free package.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX2120_10 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Complete, Direct-Conversion Tuner for DVB-S and Free-to-Air Applications |
| MAX2120CTI+ | 功能描述:調諧器 Direct Conversion Tu Ner For Dvb-S -75 To RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數: 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| MAX2120CTI+T | 功能描述:調諧器 Direct Conversion Tu Ner For Dvb-S -75 To RoHS:否 制造商:NXP Semiconductors 功能: 噪聲系數: 工作電源電壓: 最小工作溫度: 最大工作溫度: |
| MAX2120EVKIT+ | 功能描述:射頻開發(fā)工具 MAX2120 Eval Kit RoHS:否 制造商:Taiyo Yuden 產品: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 |
| MAX2121 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Complete Direct-Conversion L-Band Tuner |
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