max2850 Maxim Integrated Products, Inc., max2850 Datasheet - Page 17

• Manufacturer Part Number: max2850
• Description: 5ghz, 4-channel Mimo Transmitter
• Manufacturer: Maxim Integrated Products, Inc.

(V
balun, T
-25kHz
25kHz
CC
= 2.8V, f
0s
MANUAL VCO SUB-BAND SELECTION)
A
SETTLING (4900MHz TO 5900MHz,
CHANNEL SWITCHING FREQUENCY
= +25NC, using the MAX2850 Evaluation Kit.)
LO
-50kHz
50kHz
-0.5
= 5.35GHz, f
2.5
2.0
1.5
1.0
0.5
0
______________________________________________________________________________________
10µs/div
0s
0
WITH KYOCERA 2520 40MHz CRYSTAL
Rx-TO-Tx TURNAROUND FREQUENCY
CRYSTAL OSCILLATOR TUNING STEP
SETTLING AT MAX Tx POWER
50
REF
XTAL TUNING CODE
100
= 40MHz, CS = high, SCLK = DIN = low, RF BW = 20MHz, Tx output at 50I unbalanced output of
5GHz, 4-Channel MIMO Transmitter
5µs/div
150
99.22µs
200
-25kHz
250
25kHz
Typical Operating Characteristics (continued)
49.84µs
0s
300
MANUAL VCO SUB-BAND SELECTION)
SETTLING (5900MHz TO 4900MHz,
CHANNEL SWITCHING FREQUENCY
10µs/div
-100
140
120
100
100
-20
-40
-60
-80
80
60
40
20
80
60
40
20
0
0
0
0
WITH KYOCERA 40MHz 2520 CRYSTAL
CAPACITANCE AT BASE AND EMITTER
CRYSTAL OSCILLATOR TUNING RANGE
99.22µs
(INCLUDE EV KIT COMPONENTS)
CRYSTAL OSCILLATOR TUNING
50
50
T
CRYSTAL TUNING CODE
A
CRYSTAL TUNING CODE
EMITTER-TO-GROUND
= +85°C
100
100
-50kHz
50kHz
CAPACITANCE
T
BASE-TO-GROUND
A
= +25°C
CAPACITANCE
150
150
0s
Tx-TO-Rx TURNAROUND FREQUENCY
T
A
200
200
SETTLING AT MAX Tx POWER
= -20°C
250
250
5µs/div
300
300
49.84µs
17