E4438C

TRF3705

I+

I-

Q+

Q-

LO

V

_MOD

CC

Spectrum

Analyzer

Power Supply

J4

J3

J1

J5

J6

J7

V

_LO

CC

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TRF3705 EVM Test Configuration

2

TRF3705 EVM Test Configuration

2.1

Test Block Diagram

Figure 2 shows the test setup for general testing of the TRF3705.

Figure 2. Test Setup Block Diagram

2.2

Test Equipment

The following equipment is required for completing RF Testing:

•

Power supply with current readout

— Agilent E3631 or equivalent

•

Signal generator for LO input signal

— Agilent E4438C or equivalent

•

Arbitrary waveform generator

— Agilent E4438C or equivalent

•

Spectrum analyzer

— Agilent E4440A or equivalent

2.3

Calibration

The RF cables must be good quality RF cables due to the high-frequency signals.

•

Measure the insertion loss of the RF output cable, and use this value to compensate for the measured

output power.

•

Measure the insertion loss of the LO input cable, and use this value to compensate for the desired LO

power.

3

SLWU073

– October 2011

TRF3705EVM Evaluation Module

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© 2011, Texas Instruments Incorporated