RF2460PCBA-41X(V2) 查看數據表（PDF） - RF Micro Devices

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RF2460PCBA-41X
(Rev.:V2)

PCS CDMA LOW NOISE AMPLIFIER/MIXER 1500MHz TO 2200MHz DOWNCONVERTER

RF Micro Devices 

RF2460

US-PCS

LNA Gain, Noise Figure and IIP3 versus ICC - LNA Only

(LNA High Gain)

18.0

15.0

16.0

10.0

14.0

12.0

5.0

10.0

0.0

8.0

Gain (dB)

6.0

NF (dB)

-5.0

IIP3 (dBm)

4.0

-10.0

2.0

0.0

-15.0

1.0

3.0

5.0

7.0

9.0

11.0

13.0

15.0

X Axis Label (units)

Mixer Gain, Noise Figure and IIP3 versus ICC - Mixer

(Mixer High Gain, LO = -7 dBm)

25.0

10.0

20.0

15.0

5.0

10.0

0.0

5.0

0.0

-5.0

-10.0

-15.0

Gain (dB)

NF (dB)

IIP3 (dBm)

-5.0

-10.0

-20.0

-15.0

2.0

4.0

6.0

8.0

10.0 12.0 14.0 16.0 18.0

ICC (mA)

200.0

180.0

160.0

140.0

120.0

100.0

80.0

60.0

40.0

20.0

0.0

1.0

180.0

160.0

140.0

120.0

100.0

80.0

60.0

40.0

20.0

0.0

2.0

Resistor (R6) versus ICC (mA) - LNA Only

(LNA High Gain)

3.0

5.0

7.0

9.0

11.0

13.0

15.0

ICC (mA)

Resistor (R3) versus ICC - Mixer

(Mixer High Gain, LO = 2170 @ -7 dBm)

4.0

6.0

8.0

10.0 12.0 14.0 16.0 18.0

ICC (mA)

Special Instructions (Board loss, taking into consideration description in the schematic)

LNA

VCC1=VCC2=Enable=2.75V; Mix Gain=0.0V

To measure ICC LNA only:

LNA Gain was switched between 0V and 2.75V, and record the delta current.

Mixer

VCC1=VCC2=Enable=Mix Gain=2.75V; LNA Gain=0.0V

To measure ICC Mixer (LNA should be in bypass mode and LO signal should be present):

Mixer Current=Total IC Current-LO Circuitry (~4.23mA) (See “Current Measurement” section for more details)

VCC2 only affects LO current buffer and R6 doesn’t affect the mixer current.

8-98

Rev B5 060921

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