5GHz, 4-Channel MIMO Transmitter
______________________________________________________________________________________ 11
Typical Operating Characteristics (continued)
(V
CC
= 2.8V, f
LO
= 5.35GHz, f
REF
= 40MHz, CS = high, SCLK = DIN = low, RF BW = 20MHz, Tx output at 50I unbalanced output of
balun, T
A
= +25NC, using the MAX2850 Evaluation Kit.)
o
FREQUENCY (Hz)
-35
-135
10k
100M
Rx LPF 40MHz CHANNEL BANDWIDTH
RESPONSE
Rx LPF 20MHz CHANNEL
BANDWIDTH GROUP DELAY
MAX2850 toc21
0
10k
100M
100
FREQUENCY (Hz)
Rx LPF 40MHz CHANNEL
BANDWIDTH GROUP DELAY
MAX2850 toc22
0
10k
100M
100
FREQUENCY (Hz)
Rx DC OFFSET SETTLING RESPONSE
(-30dB Rx VGA GAIN STEP)
MAX2850 toc23
50mV/div
0V
Rx BASEBAND
I/Q OUTPUT
200ns/div
CH1 PEAK TO
PEAK: 81.9mV
GAIN-CONTROL
TOGGLE
Rx DC OFFSET SETTLING RESPONSE
(+8dB Rx VGA GAIN STEP)
MAX2850 toc24
10mV/div
0V
200ns/div
CH1 PEAK TO
PEAK: 8.60mV
GAIN-CONTROL
TOGGLE
Rx BASEBAND
I/Q OUTPUT
Rx DC OFFSET SETTLING RESPONSE
(+16dB Rx VGA GAIN STEP)
MAX2850 toc25
10mV/div
0V
200ns/div
CH1 PEAK TO
PEAK: 17.3mV
GAIN-CONTROL
TOGGLE
Rx BASEBAND
I/Q OUTPUT
Rx DC OFFSET SETTLING RESPONSE
(+32dB Rx VGA GAIN STEP)
MAX2850 toc26
50mV/div
0V
200ns/div
CH1 PEAK TO
PEAK: 69.0mV
GAIN-CONTROL TOGGLE
Rx BASEBAND
I/Q OUTPUT
Rx BASEBAND DC OFFSET SETTLING
RESPONSE WITH RxHP = 1
(MAX - 40dB TO MAX LNA GAIN STEP)
MAX2850 toc27
10mV/div
0V
10祍/div
GAIN-CONTROL
TOGGLE
Rx BASEBAND
I/Q OUTPUT
BASEBAND FREQUENCY (Hz)
-35
-135
10k
100M
Rx LPF 20MHz CHANNEL BANDWIDTH
RESPONSE