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MAX3580ETJ+

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
General Description
The MAX3580 fully integrated, direct-conversion TV tuner
is designed for Digital Video Broadcasting-Terrestrial
(DVB-T) applications. The integrated tuner covers a
170MHz to 230MHz input frequency range for the VHF-III
band and 470MHz to 878MHz for the UHF band.
The MAX3580 direct-conversion tuner integrates an RF
input switch and a multiband tracking filter, allowing
low-power tuner-on-board applications without the cost
and power-dissipation issues of dual-conversion tuner
solutions. The zero-IF architecture eliminates the need
for SAW filters by providing baseband I and Q outputs
directly to the demodulator. In addition, DC-offset can-
cellation is implemented on-chip using a mixed-signal
architecture to improve the second-order distortion per-
formance and the dynamic range of the downstream
digitizer and demodulator.
The MAX3580 features dynamic gain control of more
than 76dB and a typical midband noise figure of 4.7dB
referred to the LNA input. The VCO architecture opti-
mizes both in-band and wideband phase noise for
OFDM applications where sensitivity to both 1kHz
phase noise and wideband phase noise related to
strong adjacents can be a problem.
The MAX3580 communicates using a 2-wire serial bus.
The device operates from a typical +3.3V power supply
and dissipates 650mW. The MAX3580 is available in a
small 32-pin thin QFN package (5mm x 5mm) with an
exposed paddle.
Applications
Digital Televisions
Digital Terrestrial Set-Tops
Laptop Televisions
Automotive Televisions
USB Peripherals
Features
o 650mW Power Dissipation (at V
CC
= +3.3V)
o I and Q Baseband Outputs Eliminate All IF-SAW
Filters
o Integrated RF Tracking Filters
o Tunable Baseband Lowpass Filters
o Full-Band VHF-III and UHF Tuning
o +38dB Digital ACPR, +47dB Analog ACPR
o Low Noise Figure: 4.7dB (typ)
o Frac-N Synthesizer for -90dBc/Hz Close-In
Phase Noise
o +3.1V to +3.5V Supply Voltage Range
o Ultra-Small, 5mm x 5mm Thin QFN Package
MAX3580
Direct-Conversion TV Tuner
________________________________________________________________
Maxim Integrated Products
1
PART TEMP RANGE PIN-PACKAGE
MAX3580ETJ+ -40°C to +85°C 32 TQFN-EP*
MAX3580ETJ+T -40°C to +85°C 32 TQFN-EP*
Pin Configuration/
Functional Diagram
Ordering Information
TRACKING
FILTER
GND_TUNE
LDO
XE
XB
VCC_VCO
MUX
RFIN2
ADDR2
LEXT
VCC_SYN
RFIN
RF_AGC
SCL
SDA
BBI-
BBQ-
BBQ+
BB_AGC
BBI+
VCC_BB
REF_BUFF
VCC_RF
OVLD_DET
IND1
IND2
VCC_XTAL
VTUNE
CP
GND_LNA
GND_CP
GND_PLL
N.C.
TOP VIEW
+
32 28
293031
25
26
27
10
13
15
14
1611 12
9
17
18
19
20
21
22
23
24
2
3
4
5
6
7
8
1
MAX3580
0
90
LO
LO
CHARGE
PUMP
SERIAL INTERFACE, CONTROL,
AND
SYNTHESIZER
19-0611; Rev 9; 2/10
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.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
T = Tape-and-reel package.
EVALUATION KIT
AVAILABLE
MAX3580
Direct-Conversion TV Tuner
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(MAX3580 EV kit, V
CC
= +3.1V to +3.5V, V
GND
= 0V, V
BB_AGC
= V
RF_AGC
= +2.85V, RF input terminated into a 75Ω load, BBI_ and
BBQ_ are open, no input signal, VCO active, registers set according to the specified default register conditions, unless otherwise
specified. Typical values are at V
CC
= +3.3V, T
A
=+25°C, unless otherwise specified.) (Note 1)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
VCC_ _ to GND......................................................-0.3V to +3.6V
SDA, SCL, ADDR2, MUX, REF_BUFF,
BB_AGC, RF_AGC to GND ................................-0.3V to +3.6V
All Other Pins to GND ..............................-0.3V to (+V
CC
+ 0.3V)
RF Input Power ...............................................................+10dBm
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Continuous Power Dissipation (T
A
= +70°C)
(derate 21.3mW/°C above +70°C)..............................1702mW
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
SUPPLY VOLTAGE AND CURRENT
Supply Voltage V
CC
3.1 3.5 V
Active 197 225 mA
Supply Current I
CC
Shutdown mode <100 µA
RF_AGC AND BB_AGC
Input Bias Current I
AGC
V
AGC
at +0.5V and +2.85V -50 +50 µA
Maximum gain 2.85
RF and Baseband AGC Control
Voltage
V
AGC
Minimum gain 0.5
V
SERIAL INTERFACE AND MUX OUTPUT (SCL, SDA, MUX)
Input Logic-Level Low V
IL
0.3 x
V
CC
V
Input Logic-Level High V
IH
0.7 x
V
CC
V
Input Hysteresis
0.05 x
V
CC
V
SDA, SCL Input Current -10 +10 µA
Output Logic-Level Low V
OL
Sink current = 0.3mA 0.4 V
Output Logic-Level High V
OH
Source current = 0.3mA
V
CC
-
0.5
V
CAUTION! ESD SENSITIVE DEVICE
MAX3580
Direct-Conversion TV Tuner
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
170 230
Operating Frequency Range f
RF
Gain specification met across this
frequency band
470 878
MHz
V
RF_AGC
= V
BB_AGC
= +2.85V 71
Overall Voltage Gain (Note 2)
V
RF_AGC
= V
BB_AGC
= +0.5V 26
dB
RF Gain Flatness W i thi n each V H F- III and U H F b and ( N ote 10) -4 +4 dB
Input Return Loss Wor st case acr oss b and sel ected , 75Ω system 7 dB
230MHz 5.4
470MHz 4.7
Noise Figure (DSB) (Notes 3, 4) NF
858MHz 6.5
dB
Broadband (Notes 4, 5) 15
Input 2nd-Order Intercept Point IIP2
Br oad b and , RF_AGC ad j usted for 49d B of g ai n > 26
dBm
Broadband (Notes 4, 6) > -4
Br oad b and , RF_AGC ad j usted for 49d B of g ai n > 12
Narrowband (Notes 4, 7) -6 Input 3rd-Order Intercept Point IIP3
Narrowband, RF_AGC adjusted for 49dB of
gain (Note 7)
+16
dBm
P
DESIRED
= -78dBm and converted to
3.75MHz, P
TONE
10MHz higher (Note 4)
-22
RF 1dB Desense
RF_AGC adjusted for 49dB of gain,
P
DESIRED
= -55dBm
+1
dBm
RF i np ut r ang e of 170M H z to 960M H z ( N ote 8) > -60
LO Harmonic Reception
RF input range of 960MHz to 1400MHz > -40
dBc
RF Channel Flatness
8MHz RF channel at baseband, tested at
169MHz and 469MHz
-1 +1 dB
Isolation
DC to 30MHz, RF input to baseband output,
relative to desired channel
> 60 dBc
I/Q phase error at 1MHz -3 +3 D eg r ees
Quadrature Accuracy
I/Q amplitude error at 1MHz -1.5 +1.5 dB
50MHz to 470MHz -50 -20
470MHz to 878MHz -50 -35
Spurious at the RF Input (Note 3)
878MHz to 1732MHz < -50 -20
dBmV
At 1kHz to 10kHz (Note 3) -77 -90
At 100kHz (Note 3) -94 -107
Phase Noise (Single-Sideband,
Closed Loop)
ΦN
At 1MHz -130
dBc/Hz
AC ELECTRICAL CHARACTERISTICS
(MAX3580 EV kit, V
CC
= +3.1V to +3.5V, V
GND
= 0V. V
RF_AGC
= V
BB_AGC
= +2.85V, RF input terminated into a 75Ω load, BBI_ and
BBQ_ loaded by R
L
greater than 2kΩ and C
L
less than 10pF, VCO active, registers are set according to the recommended default
register conditions, unless otherwise noted. Typical values are at V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.) (Note 1)
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

MAX3580ETJ+

Mfr. #:
Buy MAX3580ETJ+
Manufacturer:
Maxim Integrated
Description:
Tuners Direct Conversion TV Tuner
Lifecycle:
New from this manufacturer.
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