MAX3540 Datasheet, PDF (1/16 Pages) Maxim Integrated Products – Complete Single-Conversion Television Tuner

19-0848; Rev 0; 10/07
EVAALVUAAILTAIOBNLEKIT
Complete Single-Conversion Television Tuner
General Description
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.
The MAX3540 is designed to convert NTSC or ATSC sig-
nals in the 54MHz to 860MHz band to a 44MHz interme-
diate frequency (IF).
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.
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.
Televisions
Applications
Analog/Digital Terrestrial Receivers
Digital Set-Top Boxes
Cable Modems
VOIP Gateways
Features
♦ Low Power Consumption: 760mW (typ) from a
+3.3V Supply Voltage
♦ Integrated Tracking Filters
♦ ATSC A/74 Compliant
♦ 40dB Adjacent Channel Protection Ratio (ACPR)
♦ 4.4dB (typ) Low Noise Figure
♦ Small, 7mm x 7mm, fcLGA Leadless Package
♦ 256-QAM-Compatible Phase-Noise Performance
♦ IF Overload Detector Controls RF Variable-Gain
Amplifier
♦ 2-Wire I²C-Compatible Serial Control Interface
Ordering Information
PART
TEMP
RANGE
PIN-
PACKAGE
PKG
CODE
MAX3540ULM#G42 0°C to +85°C 48 fcLGA-EP* L4877A-E
*EP = Exposed paddle.
Pin Configuration
48 47 46 45 44 43 42 41 40 39 38 37
+
SCL 1
SDA 2
VCC 3
UHF_IN 4
÷ R PD CP
÷N
SERIAL
INTERFACE
VCO
DIVIDER
VHF_IN 5
RFGND2 6
LEXT 7
RFGND3 8
RFAGC 9
VCC ¹⁰
GND 11
VREF
+
-
MAX3540
EP
GND 12
36 IFOUT1-
35 IFOUT1+
34 IFOVLD
33 V_CC
32 VCC
31 GND
30 IFIN+
29 IFIN-
28 V_CC
27 GND
26 IFAGC
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.