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MAX3540

更新时间： 2024-11-23 04:42:03
品牌 Logo 应用领域
美信 - MAXIM 电视
页数 文件大小 规格书
16页 262K
描述
Complete Single-Conversion Television Tuner

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MAX3540 数据手册

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19-0848; Rev 0; 10/07  
Complete Single-Conversion Television Tuner  
MAX3540  
General Description  
Features  
The MAX3540 complete single-conversion television  
tuner is designed for use in analog/digital terrestrial appli-  
cations and digital set-top boxes. This television tuner  
draws only 760mW of power from a +3.3V supply voltage.  
♦ Low Power Consumption: 760mW (typ) from a  
+3.3V Supply Voltage  
♦ Integrated Tracking Filters  
♦ ATSC A/74 Compliant  
The MAX3540 is designed to convert NTSC or ATSC sig-  
nals in the 54MHz to 860MHz band to a 44MHz interme-  
diate frequency (IF).  
♦ 40dB Adjacent Channel Protection Ratio (ACPR)  
♦ 4.4dB (typ) Low Noise Figure  
The MAX3540 includes a variable-gain low-noise ampli-  
fier (LNA), multiband tracking filters, a harmonic-rejec-  
tion mixer, a low-noise IF amplifier, an IF power detector,  
and a variable-gain IF amplifier. The MAX3540 also  
includes fully monolithic VCOs and tank circuits as well  
as a complete frequency synthesizer. This highly inte-  
grated design allows for low-power tuner-on-board  
applications without the cost and power-dissipation  
issues of dual-conversion tuner solutions.  
♦ Small, 7mm x 7mm, fcLGA Leadless Package  
♦ 256-QAM-Compatible Phase-Noise Performance  
♦ IF Overload Detector Controls RF Variable-Gain  
Amplifier  
2
♦ 2-Wire I C-Compatible Serial Control Interface  
The MAX3540 is specified for operation in the 0°C to  
+85°C temperature range and is available in a leadless  
48-pin flip-chip (fcLGA) package.  
Ordering Information  
TEMP  
RANGE  
PIN-  
PACKAGE  
PKG  
CODE  
PART  
Applications  
Televisions  
MAX3540ULM#G42 0°C to +85°C 48 fcLGA-EP* L4877A-E  
Analog/Digital Terrestrial Receivers  
Digital Set-Top Boxes  
Cable Modems  
*EP = Exposed paddle.  
Pin Configuration  
VOIP Gateways  
48 47 46 45 44 43 42 41 40 39 38 37  
+
36  
35  
34  
33  
32  
31  
30  
IFOUT1-  
IFOUT1+  
IFOVLD  
1
2
SCL  
SDA  
÷R PD CP  
÷N  
3
V
CC  
SERIAL  
INTERFACE  
VCO  
DIVIDER  
V
CC  
4
UHF_IN  
VHF_IN  
RFGND2  
LEXT  
V
CC  
5
GND  
6
V
REF  
IFIN+  
7
+
-
29 IFIN-  
8
RFGND3  
RFAGC  
28  
27  
26  
V
9
CC  
MAX3540  
EP  
GND  
10  
11  
12  
V
CC  
IFAGC  
GND  
GND  
25 IFOUT2+  
13 14 15 16 17 18 19 20 21 22 23 24  
________________________________________________________________ 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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