ALM-1812-TR1G

ALM-1812-TR1G Datasheet

ALM-1812 GPS Filter-LNA-Filter Front-End Module

Part	Datasheet
ALM-1812-TR1G	ALM-1812-TR1G (pdf)

Related Parts	Information
ALM-1812-BLKG	ALM-1812-BLKG

PDF Datasheet Preview
ALM-1812 GPS Filter-LNA-Filter Front-End Module Data Sheet Avago Technologies’ ALM-1812 is a GPS front-end module that combines a high-gain low-noise amplifier LNA with GPS FBAR filters. The LNA uses Avago Technologies’ proprietary GaAs Enhancement-mode pHEMT process to achieve high gain with very low noise figure and high linearity. Noise figure distribution is very tightly controlled. A CMOS-compatible shutdown pin is included either for turning the LNA on/off, or for current adjustment. The integrated filter utilizes an Avago Technologies’ leadingedge FBAR filter for exceptional rejection at Cell/PCS-Band frequencies. The low noise figure and high gain, coupled with low current consumption make it suitable for use in critical lowpower GPS applications or during low-battery situations. Component Image Surface Mount x mm3 12-lead MCOB NC pin 1 Gnd pin 2 RF in pin 3 pin 12 pin 11 pin 10 1812 YMXXXX Gnd pin 4 pin 5 pin 6 NC pin 9 RF Out pin 8 NC pin 7 NC pin 9 TOP VIEW Vdd NC pin 10 pin 11 pin 12 NC pin 1 RF Out pin 8 Gnd pin 2 NC pin 7 Gnd pin 6 Gnd pin 5 Gnd pin 4 RF in pin 3 BOTTOM VIEW Note Package marking provides orientation and identification “1812” = Product Code “Y” = Year of manufacture “M” = Month of manufacture “XXXX”= Last 4 digit of lot number • Very Low Noise Figure • Exceptional Cell/PCS-Band rejection • Low external component count • Fully-matched at RF input and RF output • Shutdown current < 1 uA • CMOS compatible shutdown pin SD • ESD > 3kV at RFin pin • x mm3 size • Adjustable bias current via single resistor/voltage • Lead-free, Halogen free and meets MSL3 Specifications Typical performance 25°C At 1.575GHz, Vdd = 2.8V, Idd = 6.8mA • Gain = dB • NF = dB • IIP3 = +2 dBm, IP1dB = -8 dBm • S11 = -10 dB, S22 = -15 dB • Cell-Band Rejection > 90dBc • PCS-Band Rejection > 85dBc Application • GPS Front-end Module Application Circuit external +Vdd = 2.8V VBias RBias RFin RFout Absolute Maximum Rating [1] TA = 25°C Parameter Units Device Drain to Source Voltage[2] V Drain Current[2] Part Number Ordering Information Part Number ALM-1812-BLKG ALM-1812-TR1G Qty 100 3000 Container Antistatic Bag 13” Reel ALM-1812 Typical Noise Parameters at 25°C, Freq = GHz, Vdd = 1.8V, Idd = 4mA Freq Fmin GAMMA OPT Rn/50 Notes • The exceptional noise figure performance of the ALM-1812 is due to its highly optimized design. In this regard, the Fmin of the ALM-1812 shown above is locked down by the internal input pre-match. This allows the use of relatively inexpensive chip inductors for external matching. Package Dimension 1812 YMXXXX TOP VIEW SIDE VIEW all gaps pitch 0.3350-4x 0.8250-4x pitch 0.80-3x 0.70-3x 0.10-3x 0.9875-8x pitch 0.9875-6x pitch BOTTOM VIEW 0.4975-8x PIN 1 0.8250-2x pitch 0.35sq-12x Note All dimensions are in milimeters Dimensions are inclusive of plating Dimensions are exclusive of mold and metal burr. Y refer to year, M refer to month & XXXX refer to last 4 digit of lot number Bottom Solder Mask PCB Land Patterns and Stencil Design 0.9875-8x 0.35sq-12x 0.70-3x 1.10-2x 0.8250-4x 0.56-3x 0.9875-8x 1.10-2x 0.3150sq-12x 0.8250-4x 0.80-3x Land Pattern

PDF Datasheet Preview

ALM-1812 GPS Filter-LNA-Filter Front-End Module

Data Sheet

Avago Technologies’ ALM-1812 is a GPS front-end module that combines a high-gain low-noise amplifier LNA with GPS FBAR filters. The LNA uses Avago Technologies’ proprietary GaAs Enhancement-mode pHEMT process to achieve high gain with very low noise figure and high linearity. Noise figure distribution is very tightly controlled. A CMOS-compatible shutdown pin is included either for turning the LNA on/off, or for current adjustment. The integrated filter utilizes an Avago Technologies’ leadingedge FBAR filter for exceptional rejection at Cell/PCS-Band frequencies.

The low noise figure and high gain, coupled with low current consumption make it suitable for use in critical lowpower GPS applications or during low-battery situations.

Component Image Surface Mount x mm3 12-lead MCOB

NC pin 1 Gnd pin 2 RF in pin 3
pin 12 pin 11 pin 10
1812 YMXXXX

Gnd pin 4 pin 5 pin 6

NC pin 9 RF Out pin 8 NC pin 7

NC pin 9

TOP VIEW

Vdd NC
pin 10 pin 11 pin 12

NC pin 1

RF Out pin 8

Gnd pin 2

NC pin 7

Gnd pin 6

Gnd pin 5

Gnd pin 4

RF in pin 3

BOTTOM VIEW

Note Package marking provides orientation and identification “1812” = Product Code “Y” = Year of manufacture “M” = Month of manufacture “XXXX”= Last 4 digit of lot number
• Very Low Noise Figure
• Exceptional Cell/PCS-Band rejection
• Low external component count
• Fully-matched at RF input and RF output
• Shutdown current < 1 uA
• CMOS compatible shutdown pin SD
• ESD > 3kV at RFin pin
• x mm3 size
• Adjustable bias current via single
resistor/voltage
• Lead-free, Halogen free and meets MSL3

Specifications Typical performance 25°C

At 1.575GHz, Vdd = 2.8V, Idd = 6.8mA
• Gain = dB
• NF = dB
• IIP3 = +2 dBm, IP1dB = -8 dBm
• S11 = -10 dB, S22 = -15 dB
• Cell-Band Rejection > 90dBc
• PCS-Band Rejection > 85dBc

Application
• GPS Front-end Module

Application Circuit
external
+Vdd = 2.8V VBias

RBias

RFin

RFout

Absolute Maximum Rating [1] TA = 25°C

Parameter

Units

Device Drain to Source Voltage[2] V

Drain Current[2]
Part Number Ordering Information

Part Number ALM-1812-BLKG ALM-1812-TR1G

Qty 100 3000

Container Antistatic Bag 13” Reel

ALM-1812 Typical Noise Parameters at 25°C, Freq = GHz, Vdd = 1.8V, Idd = 4mA

Freq

Fmin

GAMMA OPT

Rn/50

Notes
• The exceptional noise figure performance of the ALM-1812 is due to
its highly optimized design. In this regard, the Fmin of the ALM-1812 shown above is locked down by the internal input pre-match. This allows the use of relatively inexpensive chip inductors for external matching.

Package Dimension
1812 YMXXXX

TOP VIEW

SIDE VIEW
all gaps
pitch
0.3350-4x
0.8250-4x pitch
0.80-3x
0.70-3x
0.10-3x
0.9875-8x pitch
0.9875-6x pitch

BOTTOM VIEW
0.4975-8x PIN 1
0.8250-2x pitch
0.35sq-12x

Note All dimensions are in milimeters Dimensions are inclusive of plating Dimensions are exclusive of mold and metal burr. Y refer to year, M refer to month & XXXX refer to last 4 digit of lot number

Bottom Solder Mask

PCB Land Patterns and Stencil Design
0.9875-8x
0.35sq-12x
0.70-3x
1.10-2x
0.8250-4x
0.56-3x
0.9875-8x
1.10-2x
0.3150sq-12x 0.8250-4x
0.80-3x Land Pattern

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived ALM-1812-TR1G Datasheet file may be downloaded here without warranties.

Datasheet ID: ALM-1812-TR1G 520088