ALM-2712-TR1G Avago Technologies US Inc., ALM-2712-TR1G Datasheet - Page 6

• Manufacturer Part Number: ALM-2712-TR1G
• Description: Nigel Filter, LNA, Filter
• Manufacturer: Avago Technologies US Inc.

Specifications of ALM-2712-TR1G

• Current - Supply: 20mA
• Frequency: 1.575GHz
• Gain: 14.2dB
• Noise Figure: 1.26dB
• P1db: 2dBm
• Package / Case: 12-PowerVQFN, 12-MCOB
• Rf Type: GPS
• Test Frequency: 1575.42MHz
• Voltage - Supply: 2.7V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

RFin
Figure 8. Application Circuit
* optional, see notes below
Notes
x The module is fully matched at the input and output RF pins. The RFinput pin is connected directly to a shunt inductor to ground. As such a DC
x Best noise performance is obtained using high-Q wirewound inductors. This circuit demonstrates that low noise figures are obtainable with
x C1 and C2 are bypass capacitors for RF and low frequency stability and linearity .
x L1 and R1 isolates the demoboard from external disturbances during measurement. It is not needed in actual application. Likewise, C3 mitigate the
x Bias control is achieved by either varying the Vsd voltage with/ without R2, or fixing the Vsd voltage to Vdd and adjusting R2 for the desired
6
blocking capacitor is required if DC voltages are present. The RFoutput pin is already DC-blocked by the internal filter inside the module.
standard 0402 chip inductors.
effect of external noise pickup on the Vsd line. This component are not required in actual operation. Minimal component operation is as shown in
the schematic on page 1.
current.
C3*
R2*
Vsd
R1*
Vdd=+2.7V
Vdd
L1*
C1 0.1uF
C2
47pF
RFout