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MAX3544 PDF预览

MAX3544

更新时间: 2024-11-09 11:17:31
品牌 Logo 应用领域
美信 - MAXIM 电视
页数 文件大小 规格书
20页 1012K
描述
Multiband Digital Television Tuner

MAX3544 数据手册

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19-5470; Rev 0; 7/10  
Multiband Digital Television Tuner  
General Description  
Features  
S Standard IF Architecture Ensures < -70dBc Spurs  
S Integrated RF Tracking Filter  
The MAX3544 broadband single-conversion television  
tuner is designed for use in digital (DVB-T, DVB-C,  
GB20600) television sets and terrestrial receivers. It  
receives all television bands from 47MHz to 862MHz and  
converts the selected channel to an industry-standard  
36MHz IF.  
S Integrated IF Bandpass Filter  
S Full-Band Coverage (47MHz to 862MHz)  
S 70dB Image Rejection  
The MAX3544 includes a variable-gain low-noise input  
amplifier; an RF tracking filter; an image rejection mixer;  
a peak detector; an optional internal, self-contained RF  
gain-control loop (RFAGC); a VCO with fractional-N PLL;  
an IF bandpass filter; an IF variable-gain amplifier; and  
a crystal oscillator.  
S 4dB Noise Figure  
S Fast-Locking, Low Phase-Noise PLL Supports  
256QAM  
S Crystal Oscillator and Buffer/Divider to Drive  
Baseband IC  
S 745mW Power Dissipation  
The MAX3544 is available in a small, 6mm x 6mm, thin QFN  
package, and the application circuit fits in 20mm x 25mm on  
a two-layer board with single-sided component mounting.  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
Applications  
DTMB/GB20600  
MAX3544CTL+  
0NC to +70NC  
40 TQFN-EP*  
DVB-T/DVB-T2  
DVB-C  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
*EP = Exposed paddle.  
ATSC  
Block Diagram/Typical Application Circuit/Pin Configuration  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
TFVL2  
SCL  
V
2
I C  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
2
I C  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
FRAC-N  
PLL  
TFVH1  
TFVH2  
TFU1  
CCDIG  
DIGITAL  
DEMODULATOR  
REFOUT  
GND  
/N  
MAX3544  
REF_OUT  
IFVGC  
TFU2A  
TFU2B  
TFU3  
DTVOUT+  
DTVOUT-  
GND  
DIG_IF  
TRACKING  
FILTER  
PDET  
V
CC  
LEXT  
V
CC  
GND  
RFINL  
IFIN+  
+
1
2
3
4
5
6
7
8
9
10  
LC BANDPASS  
FILTER  
NOTE: LAYOUT FITS 25mm x 20mm ON 2-LAYER BOARD WITH DEVICE PLACEMENT ON TOP SIDE ONLY.  
_______________________________________________________________ Maxim Integrated Products  
1
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.  

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