TRF371125

SLWS219A – JANUARY 2010 – REVISED MARCH 2010

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TYPICAL CHARACTERISTICS

Table of Graphs

Gain

Figure 1, Figure 2, Figure 3

Noise figure

Figure 4, Figure 5, Figure 6

IIP3

Figure 7, Figure 8, Figure 9

IIP2

Figure 10, Figure 11, Figure 12

Gain

vs LO frequency

Figure 13, Figure 14, Figure 15

IIP3

Figure 16, Figure 17, Figure 18, Figure 19

IIP2

Figure 20, Figure 21, Figure 22, Figure 23

Optimized IIP2

Figure 24

Optimized IIP3

Figure 25

Noise figure

vs LO frequency

Figure 26, Figure 27, Figure 28

OIP3

Figure 29, Figure 30, Figure 31, Figure 32

Noise figure

vs BB gain setting

Figure 33

Gain

vs BB gain setting

Figure 34

Gain

vs Frequency offset

Figure 35, Figure 36

Gain

vs Frequency offset (bypass mode)

Figure 37, Figure 38

1-dB LPF corner frequency

vs LPFADJ setting

Figure 39

Relative LPF group delay

Figure 40

Image rejection

vs BB frequency offset

Figure 41

DC offset limit

Figure 42

Out-of-band P1dB

Figure 43

(1)

Measured with broadband Picosecond 5310A balun on the LO input and single ended connection on the RF input. Performance gain

adjusted for the 3 dB differential to single-ended insertion loss.

(2)

Performance ripple due to impedance mismatch on the RF input.

(3)

Measured with broadband Picosecond 5310A balun on the LO input and RF input. Balun insertion loss is compensated for in the

measurement.

(4)

Out-of-band intercept point is defined with tones that are at least 2 times farther out than the programmed LPF corner frequency that

generate an intermodulation tone that falls inside the LPF passband.

(5)

Out-of-band intercept point is dependent on the demodulator performance and not the baseband circuitry; the measurement is taken at

max gain but is valid across all PGA settings.

(6)

Optimized intercept point within the band 2.5 to 2.7 GHz is achieved by setting trim values Mix GM trim, Mix LO Trim, LO Trim, Mix Buff

Trim, Filter trim, Out Buff Trim to: 2, 3, 0, 1, 2, 1 respectively.

(7)

Measured with filter in bypass mode to characterize the passband circuitry across baseband frequencies.

(8)

Relative to the low frequency offset group delay in bypass mode.

(9)

Idet set to 50 µA; RF signal is off; LO at 2.4 GHz at 0 dBm; Det filter set to 1 kHz; Clk Div set to 1024.

(10) In-band tone set to 1 MHz; out-of-band jammer tone set to specified relative offset ratio from the programmed corner frequency. Jammer

tone is increased until in-band tone compresses 1 dB.

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