Maxim RRFP1A/T Bedienungsanleitung PDF herunterladen (Seite 23)

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

World-Band Transceiver ICs

RX I/Q COMMON-MODE VOLTAGE SPREAD

MAX2828/9 toc76

1σ/div

MEAN = 917mV

DEV = 17.2mV

SAMPLE SIZE = 2270

RX BB VGA SETTLING RESPONSE

(-16dB GAIN STEP)

MAX2828/9 toc70

1.5V

0.5V

40ns/div

RX BB VGA SETTLING RESPONSE

(-32dB GAIN STEP)

MAX2828/9 toc71

1.5V

0.5V

40ns/div

RX BB FREQUENCY RESPONSE

vs. FINE SETTING (COARSE SETTING = 9.5MHz)

MAX2828/9 toc72

-15

-30

-45

-60

-75

-105

-90

-120

-135

70MHz1MHz

(dB)

RX BB FREQUENCY RESPONSE

vs. COARSE SETTING (FINE SETTING = 010)

MAX2828/9 toc73

-15

-30

-45

-60

-75

-105

-90

-120

-135

70MHz1MHz

(dB)

-10

-20

-30

-40

-50

-60

-70

-80

-90

110100

TX BASEBAND FREQUENCY RESPONSE

MAX2828/9 toc74

OUT

(dBm)

EVM (%)

156342 7 8 9 10 11

GROUP DELAY RIPPLE

vs. FREQUENCY (COARSE SETTING = 9.5MHz)

MAX2828/9 toc75

FREQUENCY (MHz)

GROUP DELAY RIPPLE (ns)

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.)

RX BB VGA SETTLING RESPONSE

(+8dB GAIN STEP)

MAX2828/9 toc68

0.3V

0.2V

0.1V

40ns/div

RX BB VGA SETTLING RESPONSE

(-8dB GAIN STEP)

MAX2828/9 toc69

0.8V

0.6V

0.4V

0.2V

40ns/div

802.11g/802.11a

MAX2828/MAX2829

Maxim Integrated

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 38 39

MAX2828/MAX2829 1

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