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5GHz, 4-Channel MIMO Transmitter
_______________________________________________________________________________________ 3
DC ELECTRICAL CHARACTERISTICS (continued)
(Operating conditions, unless otherwise specified: V
CC
 = 2.7V~3.6V, ENABLE set according to operating mode, CS = high, SCLK
= DIN = low, transmitter in maximum gain, T
A
 = -25NC to +85NC. Power matching and termination for the differential RF output pins
using the Typical Operating Circuit. 100mV
RMS
 differential I and Q signals applied to I/Q baseband inputs of transmitters in transmit
mode. Typical values measured at V
CC
 = 2.85V, T
A
 = +25NC, LO frequency = 5.35GHz, T
A
 = +25NC. Channel bandwidth is set to
40MHz. PA control pins open circuit, V
CC_PA_BIAS
 is disconnected.) (Note 1)
AC ELECTRICAL CHARACTERISTICSRx MODE
(Operating conditions, unless otherwise specified: V
CC
 = 2.7V~3.6V, RF frequency = 5.351GHz, T
A
 = -25NC to +85NC. LO frequency
= 5.35GHz. Reference frequency = 40MHz, ENABLE = high, CS = high, SCLK = DIN = low, with power matching at RXRF+ and
RXRF- differential ports using the Typical Operating Circuit. Receiver I/Q output at 100mV
RMS
 loaded with 10kI differential load
resistance and 10pF load capacitance. The RSSI pin is loaded with 10kI load resistance to ground. Typical values measured at V
CC
 
= 2.85V, channel bandwidths of 40MHz, T
A
 = +25NC.) (Note 1)
PARAMETERS
CONDITIONS
MIN
TYP
MAX
UNITS
LOGIC INPUTS: ENABLE, SCLK, DIN, CS
Digital Input-Voltage High, V
IH
V
CC
 -
0.4
V
Digital Input-Voltage Low, V
IL
0.3
V
Digital Input-Current High, I
IH
-1
+1
FA
Digital Input-Current Low, I
IL
-1
+1
FA
LOGIC OUTPUTS: DOUT, CLKOUT
Digital Output-Voltage High, V
OH
Sourcing 1mA
V
CC
-
0.4
V
Digital Output-Voltage Low, V
OL
Sinking 1mA
0.4
V
Digital Output Voltage in
Shutdown Mode
Sinking 1mA
V
OL
V
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RECEIVER SECTION: RF INPUT TO I/Q BASEBAND LOADED OUTPUT (Includes 50I to 100I RF Balun and Matching)
RF Input Frequency Range
4.9
5.9
GHz
Peak-to-Peak Gain Variation
over RF Frequency Range at
One Temperature
4.9GHz to 5.35GHz
0.3
2.6
dB
5.35GHz to 5.9GHz
2.2
5.3
RF Input Return Loss
All LNA settings
-6
dB
Total Voltage Gain
Maximum gain; Main address 1 D7:0 = 11111111
61
68
dB
Minimum gain; Main address 1 D7:0 = 00000000
-2
+5
RF Gain Steps Relative to
Maximum Gain
Main address 1 D7:D5 = 110
-8
dB
Main address 1 D7:D5 = 101
-16
Main address 1 D7:D5 = 001
-32
Main address 1 D7:D5 = 000
-40
Baseband Gain Range
From maximum baseband gain (Main address 1 D3:D0
= 1111) to minimum baseband gain (Main address 1
D3:D0 = 0000)
27.5
30
32.5
dB
Baseband Gain Step
2
dB
RF Gain Change Settling Time
Gain settling to within Q0.5dB of steady state; RXHP = 1
400
ns
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