ALM-12124 datasheet(2/12 Pages) AVAGO

2 / 12 page

Absolute Maximum Rating [1] TA = 25° C

Symbol

Parameter

Units

Absolute Max.

Vc1,max

Device Control Voltage 1

(At Rx mode)

V30

Ic1 ,max

Device Control Current 1

(At Rx mode)

Vc2,max

Device Control Voltage 2

(At Tx mode)

V30

Ic2,max

Device Control Current 1

(At Tx mode)

Vbias

Device Bias Voltage

5.5

Vdd1,2

Device Voltage, RF output to ground

5.5

Gate Voltage

0.7

Pin,max

Ant CW RF Input Power (Tx mode);

5 mins testing

dBm

+47.5

Pin,max

Ant CW RF Input Power (Rx mode)

(Vdd = 5.0 V, Idd1 = 50 mA)

dBm

+20

Pin,max

LNA2_In CW RF Input Power

(Vdd = 5.0 V, Idd2 = 120 mA)

dBm

+25

Rx Pdiss

Rx mode Total Power Dissipation [3]

LNA1

0.3

Rx mode Total Power Dissipation [3]

LNA2

0.5

Tx Pdiss

Tx mode Total Power Dissipation

8.70

Junction Temperature

°C

150

TSTG

Storage Temperature

°C

-65 to 150

Tamb

Ambient Temperature

°C

-40 to 85

Rx mode Thermal Resistance [2]

LNA1: Vdd1 = 5.0 V, Idd1 = 50 mA

LNA2: Vdd2 = 5.0 V, Idd2 = 120 mA;

LNA1

jc = 72.4°C/W

LNA2

jc = 65.0°C/W

Tx mode Thermal Resistance [2]

LNA1: Vdd1 = 5.0 V, Idd1 = 50 mA

LNA2: Vdd2 = 5.0 V, Idd2 = 120 mA;

jc = 11.7°C/W

Notes:

1. Operation of this device in excess of any of

these limits may cause permanent damage.

2. Thermal resistance measured using Infra-Red

Measurement Technique.

3. Power dissipation in Rx mode with both LNA1

and LNA2 turned on. Board temperature TB is

25° C.

LNA1: Derate at 14 mW/°C for TB > 114° C.

LNA2: Derate at 15.6 mW/°C for TB > 92° C.

4. Switch Turn On Condition:

Tx mode: Vbias = 5 V, Vc1 = 0 V, Vc2 = 28 V

Rx mode: Vbias = 5 V, Vc1 = 28 V, Vc2 = 0 V

Rx/Tx Switch Operating Truth Table [1]

Mode

Vbias (V)

Vc1 (V)

Vc2 (V)

Rx (Ant – Rx)

Tx (Ant – Tx)

Note:

1. Any state other than described above in the truth table may cause permanent damage to

the device.

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