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MAX2112CTI+

更新时间： 2024-02-05 18:49:23
品牌 Logo 应用领域
美信 - MAXIM 消费电路调谐器集成电路商用集成电路放大器射频信息通信管理PC
页数 文件大小 规格书
19页 304K
描述
Complete, Direct-Conversion Tuner for DVB-S2 Applications

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中文翻译

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MAX2112CTI+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active包装说明：,
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.61
商用集成电路类型：VIDEO TUNERJESD-609代码：e3
湿度敏感等级：1峰值回流温度（摄氏度）：NOT SPECIFIED
端子面层：Matte Tin (Sn)处于峰值回流温度下的最长时间：NOT SPECIFIED
Base Number Matches：1

MAX2112CTI+ 数据手册

 浏览型号MAX2112CTI+的Datasheet PDF文件第2页浏览型号MAX2112CTI+的Datasheet PDF文件第3页浏览型号MAX2112CTI+的Datasheet PDF文件第4页浏览型号MAX2112CTI+的Datasheet PDF文件第5页浏览型号MAX2112CTI+的Datasheet PDF文件第6页浏览型号MAX2112CTI+的Datasheet PDF文件第7页 
19-0869; Rev 0; 8/07  
Complete, Direct-Conversion  
Tuner for DVB-S2 Applications  
MAX12  
General Description  
Features  
♦ 925MHz to 2175MHz Frequency Range  
♦ Monolithic VCO  
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.  
Low Phase Noise: -97dBc/Hz at 10kHz  
No Calibration Required  
♦ High Dynamic Range: -75dBm to 0dBm  
♦ Integrated Variable BW LP Filters: 4MHz to 40MHz  
♦ Single +3.3V 5ꢀ Suꢁꢁly  
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.  
♦ Low-Power Standby Mode  
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.  
♦ Multiꢁle 2-Wire Addresses for Multituner  
Aꢁꢁlications  
♦ Differential I/Q Interface  
2
♦ I C 2-Wire Serial Interface  
♦ Very Small 28-Pin TQFN Package  
The MAX2112 includes fully monolithic VCOs, as well as  
a complete fractional-N 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 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.  
Ordering Information  
PKG  
PART  
TEMP RANGE PIN-PACKAGE  
CODE  
0°C to +70°C 28 Thin QFN-EP* T2855+3  
MAX2112CTI+  
MAX2112ETI+ -40°C to +85°C 28 Thin QFN-EP* T2855+3  
*EP = Exposed paddle.  
+Denotes a lead-free package.  
Pin Configuration/  
Functional Diagram  
The MAX2112 is the most advanced DBS tuner avail-  
able today. The low noise figure eliminates the need for  
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.  
28  
27  
26  
25  
24  
23  
22  
+
21  
IDC+  
VCC_RF2  
VCC_RF1  
1
2
3
DC OFFSET  
CORRECTION  
MAX2112  
INTERFACE LOGIC  
AND CONTROL  
LPF BW  
CONTROL  
IOUT-  
IOUT+  
20  
19  
18  
17  
Applications  
DirecTV and Dish Network DBS  
GND  
RFIN  
GC1  
DVB-S2  
VSATs  
QOUT-  
QOUT+  
4
5
FREQUENCY  
SYNTHESIZER  
DIV2/DIV4  
VCC_LO  
6
7
16 VCC_DIG  
EP  
VCC_VCO  
15  
REFOUT  
8
9
10  
11  
12  
13  
14  
________________________________________________________________ Maxim Integrated Products  
1
For ꢁricing, delivery, and ordering information, ꢁlease contact Maxim Direct at 1-888-629-4642,  
or visit Maxim’s website at www.maxim-ic.com.  
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中文翻译

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MAX2112CTI+ 替代型号

型号 品牌 替代类型 描述 数据表
MAX2112CTI+T MAXIM

完全替代

 Video Tuner,
MAX2120CTI+ MAXIM

完全替代

 Complete, Direct-Conversion Tuner for DVB-S and Free-to-Air Applications
MAX2112ETI+ MAXIM

类似代替

 Complete, Direct-Conversion Tuner for DVB-S2 Applications

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