RF2416PCBA datasheet(4/10 Pages) RFMD

4 / 10 page

Preliminary

4-202

RF2416

Rev A2 010810

Function

Description

Interface Schematic

1HB IN

DCS1800/PCS1900 RF input pin.

2HB BIAS

HB BIAS is set to the supply voltage at high gain mode. For bypass

mode see “Gain Select Possibility”.

3LB BIAS

LB BIAS is set to the supply voltage at high gain mode. For bypass

mode see “Gain Select Possibility”.

4LB IN

GSM900 RF input pin.

5LB GND

LNA emittance inductance. Total inductance is comprised of

package+bondwire+ L2 on PCB.

6LB OUT

GSM900 Amplifier Output pin. This pin is an open-collector output. It

must be biased to VCC through a choke or matching inductor. This pin

is typically matched to 50

Ω with a shunt bias/matching inductor and

series blocking/matching capacitor. Refer to application schematics.

LB SELECT This pin selects high gain and bypass for GSM900.

Select < 0.8V, high gain.

Select > 1.8V, low gain.

HB SELECT This pin selects high gain and bypass for DCS1800/PCS1900.

Select < 0.8V, high gain.

Select > 1.8V, low gain.

9HB OUT

DCS1800 Amplifier Output pin. This pin is an open-collector output. It

must be biased to VCC through a choke or matching inductor. This pin

is typically matched to 50

Ω with a shunt bias/matching inductor and

series blocking/matching capacitor. Refer to application schematics.

HB IN

VCC1 HB

To Bias

Circuit

HB GND1

HB VREF/P

LB VREF/PD

LBOUT

LB GND

LB IN

To Bias

Circuit

LB SELECT

HB SELECT

HB OUT

HB GND2

RF2416PCBA 数据表(PDF) 4 Page - RF Micro Devices

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