MAX3541 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – Complete Single-Conversion Television Tuner

19-1029; Rev 0; 10/07
Complete Single-Conversion
Television Tuner
General Description
The MAX3541 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.
The MAX3541 is designed to convert PAL or DVB-C sig-
nals in the 47MHz to 68MHz, 174MHz to 230MHz, and
470MHz to 862MHz bands to an intermediate frequency
(IF) of 36MHz.
The MAX3541 includes a variable-gain low-noise amplifi-
er (LNA), multiband tracking filters, a harmonic-rejection
mixer, a low-noise IF amplifier, an IF power detector, and
a variable-gain IF amplifier. The MAX3541 also includes
fully monolithic VCOs and tank circuits, as well as a
complete frequency synthesizer. This highly integrated
design allows for low-power tuner-on-board applications
without the cost and power dissipation issues of dual-
conversion tuner solutions.
The MAX3541 is specified for operation in the -40°C to
+85°C temperature range and is available in a leadless
48-pin flip-chip (fcLGA) package.
Applications
Televisions
Analog/Digital Terrestrial Receivers
Digital Set-Top Boxes
Features
♦ Low Power Consumption: 760mW (typ) from a
+3.3V Supply Voltage
♦ Integrated Tracking Filters
♦ Low Noise Figure: 4.9dB (typ)
♦ Small 7mm x 7mm fcLGA Leadless Package
♦ IF Overload Detector Controls RF Variable-Gain
Amplifier
♦ 2-Wire, I²C-Compatible Serial Control Interface
Ordering Information
PART
TEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX3541ELM#G42 -40°C to +85°C 48 fcLGA-EP* L4877F-A
*EP = Exposed paddle.
#Indicates RoHS-compliant and exempt from lead-free
requirements.
Pin Configuration/Functional Diagram
SCL 1
SDA 2
VCC 3
UHF_IN 4
VHF_IN 5
RFGND2 6
LEXT 7
RFGND3 8
RFAGC 9
VCC 10
GND 11
GND 12
48 47 46 45 44 43 42 41 40 39 38 37
÷ R PD CP
SERIAL
÷N
INTERFACE
VCO
DIVIDER
MAX3541
EP
36 IFOUT1-
35 IFOUT1+
34 IFOVLD
VREF
+
-
33 VCC
32 VCC
31 GND
30 IFIN+
29 IFIN-
28 VCC
27 GND
26 IFAGC
25 IFOUT2+
13 14 15 16 17 18 19 20 21 22 23 24
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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.