MAXIM MAX2666, MAX2668 Technical data
19-5479; Rev 0; 8/10
EVALUATION KIT
AVAILABLE
Tiny Low-Noise Amplifiers for HSPA/LTE
General Description
The MAX2666/MAX2668 are a family of low-noise amplifiers (LNAs) intended for use in HSPA mobile handsets.
The LNAs provide three programmable gain states,
delivering superior optimization for linearity and sensitivity versus traditional two-gain-state LNAs.
The MAX2666 is optimized for use over the 2100MHz
to 2200MHz frequency range (bands 1, 4, and 10) and
offers a typical maximum gain of 14.5dB.
The MAX2668 is optimized for use over the 850MHz to
1000MHz frequency range (bands 5, 6, and 8) and provides a typical maximum gain of 17dB.
Each device is available in a tiny 1mm x 1.5mm, 6-pin
ultra-thin LGA package.
MAX2666/MAX2668
Features
S Small Footprint: 1mm x 1.5mm Package
S Thin Profile: 0.55mm
S Low Noise Figure
1dB for MAX2668
1.1dB for MAX2666
S Three Gain States for Optimum Blocker Handling
S 3.8mA Low Supply Current
S Low Bill of Materials
Ordering Information
Applications
HSPA/LTE Front-End Modules
HSPA/LTE Preamplification
PART TEMP RANGE PIN-PACKAGE
MAX2666EYT+
MAX2668EYT+
+Denotes a lead(Pb)-free/RoHS-compliant package.
-40NC to +85NC
-40NC to +85NC
6 Ultra-Thin LGA
6 Ultra-Thin LGA
Typical Operating Circuit
GAIN CONTROL TABLE FOR TWO GAIN STEPS
GAIN1
0 — LOW
1 — HIGH
GAIN CONTROL TABLE FOR THREE GAIN STEPS
GAIN1
0 OFF
0 LOW
1 MID
1 HIGH
GAIN0 GAIN
GAIN0 GAIN
0
1
0
1
LNA_IN
MAX2666
MAX2668
1
2
CHOKE +
MATCHING
3
6
5
4
V
CC
GAIN1
GAIN0
LNA_OUT
_______________________________________________________________ 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.
Tiny Low-Noise Amplifiers for HSPA/LTE
ABSOLUTE MAXIMUM RATINGS
VCC to GND ..........................................................-0.3V to +3.6V
Other Pins to GND ................................... -0.3V to (VCC + 0.3V)
Maximum Input Power ................................................... +10dBm
Continuous Power Dissipation (TA = +70NC)
Ultra-Thin LGA (derate 2.1mW/NC above +70NC) ....... 167mW
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
(Typical Operating Circuit, MAX2666/MAX2668 Evaluation Kit, GAIN1 = High, GAIN0 = High-Z, VCC = 2.7V to 3.3V, no RF signal
applied, TA = -40NC to +85NC. Typical values are at VCC = 2.85V, TA = +25NC, unless otherwise noted.) (Note 1)
MAX2666/MAX2668
Supply Voltage 2.7 2.85 3.3 V
Supply Current, High Gain GAIN_ = 11 3.8 mA
Supply Current, Mid Gain GAIN_ = 10 3.8 mA
Supply Current, Low Gain GAIN_ = 01 100 FA
Shutdown Current GAIN_ = 00 100 FA
Logic-High (VIH) 1.2 V
Logic-Low (VIL) 0.5 V
PARAMETER CONDITIONS MIN TYP MAX UNITS
Operating Temperature Range .......................... -40NC to +85NC
Junction Temperature .....................................................+150NC
Storage Temperature Range ............................ -65NC to +160NC
Lead Temperature (soldering, 10s) ................................+260NC
Soldering Temperature (reflow) ......................................+260NC
AC ELECTRICAL CHARACTERISTICS
(MAX2666/MAX2668 Evaluation Kit, input matching network according to Table 1 (input matching network), GAIN1 = High, GAIN0 =
High-Z, VCC = 2.85V, TA = +25NC, unless otherwise noted.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
MAX2666
Frequency Range Bands 1, 4, 10 2110 2140 2170 MHz
HG mode 10 14.5 17.5
Gain
LG mode, GAIN_ = 01 -15.5 -12 -9
HG mode 1.1
Noise Figure
LG mode, GAIN_ = 01 12
HG mode -2
Input 3rd-Order Intercept (Note 2)
LG mode, GAIN_ = 01 > 20
Phase Shift with Gain Step 15 Degrees
2 ______________________________________________________________________________________
dBMG mode, GAIN_ = 10 0 5 8.5
dBMG mode, GAIN_ = 10 3
dBmMG mode, GAIN_ = 10 4
Tiny Low-Noise Amplifiers for HSPA/LTE
AC ELECTRICAL CHARACTERISTICS (continued)
(MAX2666/MAX2668 Evaluation Kit, input matching network according to Table 1 (input matching network), GAIN1 = High, GAIN0 =
High-Z, VCC = 2.85V, TA = +25NC, unless otherwise noted.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
MAX2668 (BAND 8)
Frequency Range Band 8 925 942 960 MHz
HG mode 13.5 17 21
Gain
LG mode, GAIN_ = 01 -19 -16 -13
HG mode 1
Noise Figure
LG mode, GAIN_ = 01 16
HG mode -4
Input 3rd-Order Intercept (Note 2)
LG mode, GAIN_ = 01 > 18
Phase Shift with Gain Step 15 Degrees
MAX2668 (BAND 5, BAND 6)
Frequency Range Bands 5 and 6 869 881.52 894 MHz
HG mode 13.5 17 21
Gain
LG mode, GAIN_ = 01 -19 -16 -13
HG mode 1
Noise Figure
LG mode, GAIN_ = 01 16
HG mode -5
Input 3rd-Order Intercept (Note 2)
LG mode, GAIN_ = 01 > 18
Phase Shift with Gain Step 15 Degrees
Note 1: Guaranteed by test at TA = +25NC; guaranteed by designed and characterization at TA = -40NC and TA = +85NC.
Note 2: -25dBm/tone at high gain, -15dBm/tone at mid gain, -15dBm/tone at low gain. Tone separation less than 5MHz.
dBMG mode, GAIN_ = 10 0 5 8
dBMG mode, GAIN_ = 10 5
dBmMG mode, GAIN_ = 10 2
dBMG mode, GAIN_ = 10 0 5 8
dBMG mode, GAIN_ = 10 5
dBmMG mode, GAIN_ = 10 2
MAX2666/MAX2668
_______________________________________________________________________________________ 3
Loading...