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RF2861

DS120220

7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical

support, contact RFMD at (+1) 336-678-5570 or customerservice@rfmd.com.

Gain Control Logic Table

Cell Band Cascaded Performance High Mixer Gain Nominal IIP3

Cell Band Cascaded Performance Nominal Mixer Gain High IIP3

CDMA450 Band Cascaded Performance

Gain State

ENABLE

G1

G2

High Gain

100

Mid Gain

110

Low Gain

111

Low Gain (alternate)

1

0

1

NOTE: All IDC current numbers include bias circuitry current of 1.5mA to 2.0mA (dependent on mode).

TX Buffer On: Add 2mA to total current.

Parameter

CELL CDMA

LNA (High Gain)

LNA (Mid Gain)

LNA (Low Gain)

Cascaded:

Gain (dB)

25.0

16.5

8.0

Noise Figure (dB)

2.1

6.3

12.5

Input IP3 (dBm)

-5.6

+2.0

+11.4

Total Current (mA)

25.0

21.5

18.0

NOTES:

1. Assumes 2.5dB image filter insertion loss. The TX Buffer is off.NOTE:

2. All total current numbers include bias circuitry current of 1.5 mA to 2.0 mA (dependent on mode).

Parameter

CELL CDMA

LNA (High Gain)

LNA (Mid Gain)

LNA (Low Gain)

Cascaded:

Gain (dB)

22.5

14.0

5.5

Noise Figure (dB)

2.1

6.3

12.5

Input IP3 (dBm)

-3.7

+3.5

+13.3

Total Current (mA)

25.0

21.5

18.0

NOTE: Assumes 2.5dB image filter insertion loss. The TX Buffer is off.

Parameter

CDMA450

LNA (High Gain)

LNA (Mid Gain)

LNA (Low Gain)

Cascaded:

Gain (dB)

24.5

12.0

5.5

Noise Figure (dB)

2.2

8.5

14.0

Input IP3 (dBm)

-7.6

+4.5

+11.3

Total Current (mA)

29.5

25

21

NOTE: Assumes 2.5dB image filter insertion loss. The TX Buffer is off.