Maxim RRFP1A/T Bedienungsanleitung PDF herunterladen (Seite 20)

Single-/Dual-Band 802.11a/b/g

World-Band Transceiver ICs

-12

-6

-10

-4

-8

-2

-0

4.9 5.6 5.7 5.85.0 5.1 5.2 5.3 5.4 5.5 5.9

TX OUTPUT POWER vs. FREQUENCY

(B6:B1 = 111111)

MAX2828/9 toc49

FREQUENCY (GHz)

OUT

(dBm)

= +85°C

= +25°C

= -40°C

RX I/Q DC OFFSET SETTLING RESPONSE

(-8dB BB VGA GAIN STEP)

MAX2828/9 toc43

20ns/div

6mV

4mV

2mV

RX I/Q DC OFFSET SETTLING RESPONSE

(-16dB BB VGA GAIN STEP)

MAX2828/9 toc44

400ns/div

6mV

4mV

2mV

RX I/Q DC OFFSET SETTLING RESPONSE

(-32dB BB VGA GAIN STEP)

MAX2828/9 toc45

400ns/div

6mV

4mV

2mV

-80 -20-70 -60 -40 -10-50 -30 0

RX EVM vs. P

MAX2828/9 toc46

(dBm)

EVM (%)

LNA = LOW GAIN

LNA = MEDIUM GAIN

LNA = HIGH GAIN

2.5

1.5

0.5

2.0

1.0

3.0

3.5

4.0

-29 -15-27 -25 -21 -11-17 -13-23 -19 -9

RX EVM vs. V

OUT

(dBV

RMS

)

EVM (%)

= -50dBm

MAX2828/9 toc47

-9

-8

-4

-6

-3

-5

-7

-2

2.7 3.42.8 2.9 3.1 3.3 3.53.0 3.2 3.6

TX OUTPUT POWER vs. V

(B6:B1 = 111111)

MAX2828/9 toc48

(V)

OUT

(dBm)

= +85°C

= +25°C

= -40°C

-90

-60

-70

-80

-85

-55

-65

(dBm)

-75

-50

1GHz 14GHz

RX EMISSION SPECTRUM, LNA INPUT

(TX OFF, LNA = LOW GAIN)

MAX2828/9 toc41

f = 4.1GHz

f = 8.3GHz

RX I/Q DC OFFSET SETTLING RESPONSE

(+8dB BB VGA GAIN STEP)

MAX2828/9 toc42

20ns/div

6mV

4mV

2mV

Typical Operating Characteristics (continued)

= 2.7V, f

= 2.437GHz (802.11g) or f

= 5.25GHz (802.11a), f

REFOSC

= 40MHz, SHDN = CS = high, RXHP = SCLK = DIN =

low, R

BIAS

= 11kΩ, T

= +25°C using the MAX2828/MAX2829 evaluation kits.)

802.11a

MAX2828/MAX2829

Maxim Integrated

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 38 39

MAX2828/MAX2829 1

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