Rainbow Electronics MAX3540 - Manual

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.
Applications
Televisions
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 I 2 C-Compatible Serial Control Interface
MAX3540
Complete Single-Conversion Television Tuner
________________________________________________________________ Maxim Integrated Products 1
GND GND GND GND GND V CC
GND
IFOUT2-
GND GND GND GND
IFOVLD
V CC
GND
IFOUT1-
IFOUT1+
IFIN+
IFIN-
IFAGC
IFOUT2+
V CC
GND
LEXT
RFGND3
RFAGC
V CC
GND
+
V CC
V REF
XTALP V
CC
CP ADDR2 ADDR1 MUX V
CC
LDO V
CC
VTUNE GND_TUNE XTALN
3
5
4
6
GND
7
8
10
9
11
12
VHF_IN
RFGND2
2
V CC
UHF_IN
1
R
34
32
33
31
30
+
-
29
27
28
26
25
35
36
17 16 21 20 19 18 22 23 24 15 14 13
44 45
÷
N
÷
PD CP
40 41 42 43 39 38 37 46 47 48
SCL
SDA
MAX3540
VCO
DIVIDER
EP
SERIAL
INTERFACE
Pin Configuration
Ordering Information
19-0848; Rev 0; 10/07
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.
* EP = Exposed paddle.
EVALUATION KIT
AVAILABLE
PART
TEMP
RANGE
PIN-
PACKAGE PKG
CODE
MAX3540ULM#G42 0°C to +85°C 48 fcLGA-EP* L4877A-E