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Maxim Integrated Semiconductor Electronic Components Datasheet

MAX2180 Datasheet

AM/FM Car Antenna Low-Noise Amplifier

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MAX2180 pdf
19-5322; Rev 0; 6/10
EVAALVUAAILTAIOBNLEKIT
AM/FM Car Antenna Low-Noise Amplifier
General Description
The MAX2180 is a highly integrated AM/FM variable-gain
low-noise amplifier ideal for use in automotive active
antenna applications. The device features separate
AM and FM signal paths, each providing 30dB of gain
range, controlled by individual on-chip power detectors.
The AM signal path covers a 148kHz to 30MHz input
frequency range, while the FM signal path covers 65MHz
to 162.5MHz.
The device integrates a voltage regulator and pass tran-
sistor, allowing operation using battery voltages in the
+8V to +24V range. On-chip thermal protection automati-
cally limits junction temperatures during extreme thermal
conditions.
The device is available in a small, 4mm x 4mm, TQFN
package and operates over the extended industrial tem-
perature range (-40NC to +85NC).
Applications
Automotive Active Antenna
Features
S +8V to +24V Supply Voltage Range
S Integrated AGC Function Eliminates External Pin
Diodes
S High Dynamic Range
S Low-Noise Design
S Low External BOM
S Integrated Thermal Protection
S Small Package (4mm x 4mm TQFN)
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX2180ETG+
-40NC to +85NC
24 TQFN-EP*
+Denotes a lead(Pb)-free/ROHS-compliant package.
*EP = Exposed pad.
Simplified Block Diagram
FM VLDO
DET
VLDO
VREG
AM VLDO
DET MAX2180
AM/FM
VANT OUTPUT
________________________________________________________________ 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.


Maxim Integrated Semiconductor Electronic Components Datasheet

MAX2180 Datasheet

AM/FM Car Antenna Low-Noise Amplifier

No Preview Available !

MAX2180 pdf
AM/FM Car Antenna Low-Noise Amplifier
ABSOLUTE MAXIMUM RATINGS
VBATT.....................................................................-0.5V to +26V
LDO..........................................................................-0.5V to +6V
FMOUT, AMOUT....................................................-0.5V to VLDO
Short-Circuit Protection FMOUT, AMOUT.................... Indefinite
FMIN, AMIN....................................................................... 12VPP
Continuous Power Dissipation (TA = +70NC)
(derate 27.8mW/NC above +70NC).............................2220mW
BJC (Junction to Case) (Note 1).........................................2NC/W
BJA (Junction to Ambient) (Note 1)..................................36NC/W
Operating Temperature Range........................... -40NC to +85NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................ -65NC to +165NC
Lead Temperature (TQFN only, soldering, 10s)..............+300NC
Soldering Temperature (reflow).......................................+260NC
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial.
CAUTION! ESD SENSITIVE DEVICE
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.
DC ELECTRICAL CHARACTERISTICS
(MAX2180 Evaluation Kit as shown, VBATT = 8V to 15V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VBATT
= 10V, TA = +25NC.) (Note 2)
PARAMETER
CONDITIONS
MIN
SUPPLY VOLTAGE (VBATT)
VBATT
Operational range
Functional range (Note 3)
8
15
Voltage Regulation
VLDO (pin 15)
Supply Current
Normal operation (VANTSENSE = 0V or
6V < VANTSENSE < 12V)
Antenna fault, ANTSENSE open
10
GAIN CONTROL AND AGC CONTROL (AM_GAIN, AM_DET, FM_DET, FM_GAIN, ANT_SENSE)
Ground
-50
ANTSENSE
Open
LDO
FMDET
Ground
LDO
-50
Ground
-50
Digital Control
Open
LDO
TYP
10
5.25
78
2.5
2.5
MAX UNITS
15
24
V
V
95 mA
30
FA
V
50 FA
50 FA
FA
V
50 FA
AC ELECTRICAL CHARACTERISTICS
(MAX2180 Evaluation Kit, TA = -40NC to +85NC, VBATT = 8V to 15V, unless otherwise noted. Typical values are at VBATT = 10V, TA =
+25NC, load impedance = 50I, AM channel bandwidth = 9kHz, RAM = 10I (AM gain = 6dB), FM low-gain configuration, FM gain
= 6dB.) (Note 2)
PARAMETER
AM AMPLIFIER
Frequency Range
Voltage Gain Maximum
Voltage Gain Minimum
Input Capacitance
Output Impedance
CONDITIONS
RAM = short, fIN = 1MHz
RAM = 330I, fIN = 1MHz
fIN = 1MHz
fIN = 1MHz
MIN TYP MAX UNITS
0.148
5
-2.8
6.5
-1.3
12.5
30
8
+0.2
17
MHz
dB
dB
pF
I
2


Part Number MAX2180
Description AM/FM Car Antenna Low-Noise Amplifier
Maker Maxim
Total Page 10 Pages
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