MAX2829EVKIT【PDF 10/39 页】EVAL KIT MAX2828, MAX2829

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MAX2828/MAX2829

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

World-Band Transceiver ICs

AC ELECTRICAL CHARACTERISTICS — 802.11a Tx Mode (MAX2828/MAX2829)

(MAX2828/MAX2829 evaluation kits: V CC = +2.7V, f OUT = 5.25GHz, f REFOSC = 40MHz, SHDN = TXENA = CS = high, RXENA = SCLK

= DIN = low, R BIAS = 11k ? , 100mV RMS sine and cosine signal (or 100mV RMS , 54Mbps IEEE 802.11a I/Q signals wherever OFDM is

mentioned) applied to baseband I/Q inputs of transmitter, registers set to default settings and corresponding test mode, T A = +25 ° C,

unless otherwise noted.) (Table 4)

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

TRANSMIT SECTION: Tx BASEBAND I/Q INPUTS TO RF OUTPUTS

RF Output Frequency Range, f RF

Output Power

802.11a low-band mode

802.11a high-band mode

54Mbps 802.11a OFDM

signal

2% EVM

B6:B1 = 111100

4.900

5.470

-5

-6.5

5.350

5.875

GHz

dBm

Output Power (CW)

Output Power Variation Relative

to 5.25GHz

Output Power Range

Carrier Leakage

Unwanted Sideband Suppression

Tx Output ACP

RF Output Return Loss

V IN = 100mV RMS at 1MHz I/Q CW signal, B6:B1 =

111111

f RF = 4.9GHz

f RF = 5.35GHz

f RF = 5.875GHz

B6:B1 = 111111 to B6:B1 = 000000

Without DC offset cancellation

Uncalibrated

Measured with 1MHz resolution bandwidth at 30MHz

offset from channel center (B6:B1 = 111100), OFDM

signal

With external 50 ? match

4/5 x f RF

-4.5

-6

-0.5

-1

30

-27

-51

-80

-16

-55

dBm

dB

dB

dBc

dBc

dBm/

MHz

dB

RF Spurious Signal Emissions

B6:B1 = 111100,

OFDM signal

6/5 x f RF

7/5 x f RF

-64

-65

dBm/

MHz

8/5 x f RF

-49

Baseband -3dB Corner

Frequency

(see the Lowpass

Filter Register

Definition section)

Nominal mode

Turbo mode 1

Turbo mode 2

12

18

24

MHz

Baseband Filter Rejection

Tx Baseband Input Impedance

At 30MHz, in nominal mode (see the Lowpass Filter

Register Definition section)

Minimum differential resistance

Maximum differential capacitance

60

60

0.7

dB

k ?

pF

TRANSMITTER LO LEAKAGE AND I/Q CALIBRATION USING LO LEAKAGE AND SIDEBAND DETECTOR (SEE THE Tx/Rx

CALIBRATION MODE SECTION)

Tx BASEBAND I/Q INPUTS TO RECEIVER OUTPUTS

Output at 1 x f TONE (for LO

LO Leakage and Sideband-

Detector Output

Calibration register,

D12:D11 = 1, A3:A0

= 0110

leakage = -29dBc), f TONE =

2MHz, 100mV RMS

Output at 2 x f TONE (for sideband

-4.5

dBV RMS

suppression = -40dBc), f TONE =

2MHz, 100mV RMS

-14.5

Amplifier Gain Range

Lower -3dB Corner Frequency

10

D12:D11 = 00 to D12:D11 = 11, A3:A0 = 0110

26

1

dB

MHz

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