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参数资料
| 型号： | MAX2112ETI+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/19页 |
| 文件大小： | 0K |
| 描述： | IC TUNER DIR-CONV DVB-S2 28TQFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 60 |
| 频率： | 925MHz ~ 2.175GHz |
| 应用： | 数字 TV，CATV，机顶盒 |
| 电流 - 接收： | 100mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 电源电压： | 3.13 V ~ 3.47 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-WFQFN 裸露焊盘 |
| 供应商设备封装： | 28-TQFN-EP（5x5） |
| 包装： | 托盘 |
EVALUATION KIT AVAILABLE
AVAILAB
LE
MAX2112
Complete, Direct-Conversion
Tuner for DVB-S2 Applications
General Description
The MAX2112 low-cost, direct-conversion tuner IC is
designed for satellite set-top and VSAT applications.
The IC is intended for 8PSK and Digital Video
Broadcast (DVB-S2) applications.
The MAX2112 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 DVB-S2 demodulators.
The MAX2112 includes fully monolithic VCOs, as well as
a complete fractional-N frequency synthesizer.
Features
o 925MHz to 2175MHz Frequency Range
o Monolithic VCO
Low Phase Noise: -97dBc/Hz at 10kHz
No Calibration Required
o High Dynamic Range: -75dBm to 0dBm
o Integrated Variable BW LP Filters: 4MHz to 40MHz
o Single +3.3V ±5% Supply
o Low-Power Standby Mode
o Address Pin for Multituner Applications
o Differential I/Q Interface
o I 2 C 2-Wire Serial Interface
o Very Small 28-Pin TQFN Package
Ordering Information
Additionally, an on-chip crystal oscillator is provided
along with a buffered output for driving additional tuners
and demodulators. Synthesizer programming and device
PART
MAX2112CTI+
TEMP RANGE
0°C to +70°C
PIN-PACKAGE
28 Thin QFN-EP*
Functional Diagrams
configuration are accomplished with a 2-wire serial inter-
face. The IC features 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 inter-
face, and buffer circuits active, providing a method to
reduce power in single and multituner applications.
The MAX2112 is the most advanced DBS tuner avail-
able today. The low noise figure eliminates the need for
MAX2112ETI+ -40°C to +85°C 28 Thin QFN-EP*
*EP = Exposed paddle.
+Denotes a lead(Pb)-free/RoHS-compliant package.
Pin Configuration/
Functional Diagram
an external LNA. A small number of passive compo-
nents are needed to form a complete DVB-S2 RF front-
end solution. The tuner is available in a very small
28-pin thin QFN package.
Applications
VCC_RF2
VCC_RF1
1
2
+
28
27
INTERFACE LOGIC
AND CONTROL
26
25 24
MAX2112
LPF BW
CONTROL
23 22
DC OFFSET
CORRECTION
21
20
IDC+
IOUT-
DirecTV and Dish Network DBS
GND
3
19
IOUT+
DVB-S2
VSATs
RFIN
GC1
4
5
18
17
QOUT-
QOUT+
VCC_LO
6
EP
DIV2/DIV4
FREQUENCY
SYNTHESIZER
16
VCC_DIG
VCC_VCO
7
15
REFOUT
Pin Configurations appear at end of data sheet.
8
9
10
11
12
13
14
Functional Diagrams continued at end of data sheet.
UCSP is a trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maxim integrated .com.
19-0869; Rev 2; 5/10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2112ETI/GG8 | 制造商:Maxim Integrated Products 功能描述:COMPLETE, DIRECT-CONVERSION TUNER FOR DVB-S2 APPLICATIONS - Rail/Tube |
| MAX2112ETI+ | 功能描述:调谐器 Direct Conv Tuner Tuner for DVB-S2 RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| MAX2112ETI+T | 功能描述:调谐器 Direct Conv Tuner Tuner for DVB-S2 RoHS:否 制造商:NXP Semiconductors 功能: 噪声系数: 工作电源电压: 最小工作温度: 最大工作温度: |
| MAX2112EVKIT+ | 功能描述:射频开发工具 MAX2112 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| MAX2113EVKIT | 功能描述:射频开发工具 MAX2113 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
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