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2.3GHz to 2.7GHz MIMO Wireless
Broadband RF Transceiver
AC ELECTRICAL CHARACTERISTICS—MISCELLANEOUS BLOCKS
(MAX2839AS Evaluation Kit. Unless otherwise noted, V CC_ = 2.8V, f REF = 40MHz, CS = high, SCLK = DIN = low, and T A = +25°C.) (Note
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PA BIAS DAC: VOLTAGE MODE
Output High level
Output Low level
Turn-On Time
10mA source current
100μA sink current
Excludes programmable delay of 0 to 7μs in steps of
0.5μs
V CC - 0.1
0.1
200
V
V
ns
CRYSTAL OSCILLATOR
On-Chip Tuning Capacitance
Range
On-Chip Tuning Capacitance
Step Size
Maximum capacitance, A[4:0] = 11000, D[6:0] = 1111111
Minimum capacitance, A[4:0] = 11000, D[6:0] = 0000000
15.5
0.5
0.12
pF
pF
ON-CHIP TEMPERATURE SENSOR
Digital Output Code
Readout at DOUT pin through SPI
A[4:0] = 01011, D[4:0]
T A = +25°C
T A = +85°C
T A = -40°C
01111
11101
00001
AC ELECTRICAL CHARACTERISTICS—TIMING
(MAX2839AS Evaluation Kit. Unless otherwise noted, V CC_ = 2.8V, f LO = 2.5GHz, f REF = 40MHz, CS = high, SCLK = DIN = low, PLL
closed-loop unity gain bandwidth = 120kHz, and T A = +25°C.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM TIMING
Measured from Tx or
Rx enable edge;
Rx to Tx
2
Turnaround Time
signal settling to
μs
within 2dB of steady
state
Tx to Rx, RXHP = 1
2
Tx Turn-On Time
(from Standby Mode)
Tx Turn-Off Time
(to Standby Mode)
Rx Turn-On Time
(from Standby Mode)
Rx Turn-Off Time
(to Standby Mode)
Measured from Tx-enable edge; signal
settling to within 2dB of steady state
From Tx-disable edge
Measured from Rx-enable edge; signal
settling to within 2dB of steady state
From Rx-disable edge
2
0.1
2
0.1
μs
μs
μs
μs
8
_______________________________________________________________________________________
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