MAX3544 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – Multiband Digital Television Tuner

19-5470; Rev 0; 7/10
EVAALVUAAILTAIOBNLEKIT
Multiband Digital Television Tuner
General Description
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.
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.
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.
Applications
DVB-T/DVB-T2
DVB-C
DTMB/GB20600
ATSC
Features
S Standard IF Architecture Ensures < -70dBc Spurs
S Integrated RF Tracking Filter
S Integrated IF Bandpass Filter
S Full-Band Coverage (47MHz to 862MHz)
S 70dB Image Rejection
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
Ordering Information
PART
MAX3544CTL+
TEMP RANGE
0NC to +70NC
PIN-PACKAGE
40 TQFN-EP*
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.
Block Diagram/Typical Application Circuit/Pin Configuration
30 29 28 27
TFVL2 ₃₁
TFVH1 ₃₂
TFVH2 ₃₃
TFU1 ₃₄
MAX3544
TFU2A ₃₅
TFU2B ₃₆
TFU3 ₃₇
LEXT ₃₈
TRACKING
FILTER
PDET
VCC ₃₉
RFINL ₄₀
+
12 34
26 25 24
FRAC-N
PLL
567
23 22 21
I2C
/N
8 9 10
20 ^SCL
19 ^VCCDIG
REFOUT
18
GND
17
16 ^DTVOUT+
15 ^DTVOUT-
14 ^GND
13 ^VCC
12 ^GND
11 ^IFIN+
I2C
DIGITAL
DEMODULATOR
REF_OUT
IFVGC
DIG_IF
LC BANDPASS
FILTER
NOTE: LAYOUT FITS 25mm x 20mm ON 2-LAYER BOARD WITH DEVICE PLACEMENT ON TOP SIDE ONLY.
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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.