Rainbow-electronics MAX2325 Bedienungsanleitung PDF herunterladen (Seite 4)

Note 1: Devices are production tested for functionality at frequencies stated; 30 units from 3 independent wafer lots, when one lot

was at the upper process extreme, one lot was nominal, and one lot was at the lower process extreme, were characterized.

The resulting standard deviation therefore includes process variations. Data sheet limits are ±3σ from the mean.

Note 2: Operation over this frequency range requires the ports to be rematched for the desired operating range. Performance at

various frequencies is indicated by the S-parameter data in Tables 3–7.

Note 3: Specifications are based on R

BIAS

= 20kΩ. I

for all LNAs (except HGHL) and mixers are inversely proportional to R

RBIAS

IIP3 can be traded for I

by selecting other values of R

RBIAS

MAX2323/MAX2325

Triple/Dual-Mode

CDMA LNA/Mixers

4 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2323 EV kit, F

PLNAIN

= 1960MHz, F

CLNAIN

= 881MHz, F

= 110MHz, high-side LO, 50Ω system, R

RBIAS

= 20kΩ,

RLNA

= 24kΩ. Typical values are V

= 2.75V, T

= +25°C. LO input power = -7dBm, LOW = 0V, HIGH = V

, unless otherwise

noted.) (Note 1)

PARAMETER CONDITIONS MIN TYP MAX UNITS

CDMA HIGH-GAIN, LOW-LINEARITY PAGING MODE

Gain T

= T

MIN

to T

MAX

12.5 14 14.5 dB

LNA Noise Figure 1.9 2.1 dB

= +25°C

4.5 5.5

LNA IIP3 (Note 3)

= T

MIN

to T

MAX

3.0

dBm

CDMA MIDGAIN MODE

Gain T

= T

MIN

to T

MAX

-2.0 -1.0 -0.5 dB

Noise Figure 5.6 6.0 dB

IIP3 (Note 3)

12 13.5 dBm

CELLULAR MIXER PERFORMANCE (MAX2323/MAX2325)

CDMA, ALL MODES

Gain T

= T

MIN

to T

MAX

11.5 13 14.5 dB

Noise Figure 7.5 8.5 dB

IIP3 T

= T

MIN

to T

MAX

(Note 3) 3.5 4.8 dBm

FM MODE

Gain T

= T

MIN

to T

MAX

8.5 10 11.5 dB

Noise Figure 10.5 11.5 dB

IIP3 T

= T

MIN

to T

MAX

(Note 3) 1.5 5 dBm

PCS MIXER PERFORMANCE (MAX2323)

CDMA HIGH-GAIN, HIGH-LINEARITY MODE

Gain T

= T

MIN

to T

MAX

12 13.5 15.5 dB

Noise Figure 7.9 8.5 dB

IIP3 T

= T

MIN

to T

MAX

(Note 3) 1.5 4 dBm

1 2 3 4 5 6 7 8 9 ... 13 14

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