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3.3GHz to 3.9GHz
Wireless Broadband RF Transceiver
AC ELECTRICAL CHARACTERISTICS—FREQUENCY SYNTHESIS (continued)
(MAX2838 Evaluation Kit, V CC = 2.8V, T A = +25°C, f LO = 3.6GHz, f REF = 40MHz, CS = high, SCLK = DIN = low, PLL loop bandwidth
= 180kHz, charge-pump comparison frequency = 40MHz, T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Programmable Reference Divider
Values
A4:A0 = 10100, D2:D1 = 00
A4:A0 = 10100, D2:D1 = 01
1
2
Closed-Loop Integrated Phase
Noise
Charge-Pump Output Current
Close-In Spur Level
Reference Spur Level
Turnaround LO Frequency Error
Temperature Range over which
VCO Maintains Lock
CLKOUT Frequency Divider Values
Loop BW = 180kHz, integrate phase noise from 200Hz to
5MHz
On each differential side
f OFFSET = 0 to 1.8MHz
f OFFSET = 1.8MHz to 7MHz
f OFFSET > 7MHz
f OFFSET ≥ 40MHz
Relative to steady state; measured 35μs after Tx-Rx or Rx-Tx
switching instant, and 4μs after any receiver gain changes
Relative to the initial ambient temperature T A , as long as
the final temperature is within operating temperature range
A4:A0 = 10100, D6:D5 = 01 (Note 4)
-39
0.8
-45
-70
-80
-73
±50
T A ± 40
2
dBc
mA
dBc
dBc
Hz
°C
CLKOUT Output Swing
External VCO Input Power
External VCO Output Power
R = 10k Ω , C = 10pF
MIMO slave mode only
MIMO master mode only
Low drive
High drive
1.6
2.4
-10
-8
V P-P
dBm
dBm
AC ELECTRICAL CHARACTERISTICS—MISCELLANEOUS BLOCKS
(MAX2838 Evaluation Kit, V CC = 2.8V, f REF = 40MHz, CS = high, SCLK = DIN = low, and T A = +25°C, unless otherwise noted) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PA BIAS DAC: CURRENT MODE
Numbers of bits
6
Minimum Output Sink Current
Maximum Output Sink Current
Compliance Voltage Range
Turn-On Time
DNL
D5:D0 = 000000 in A4:A0 = 11100
D5:D0 = 111111 in A4:A0 = 11100
Excludes programmable delay of 0 to 7μs in steps of 0.5μs
0.8
0
310
200
1
μA
μA
V
ns
LSB
PA BIAS DAC: VOLTAGE MODE
Output High Level
Output Low Level
Turn-On Time
10mA source current
10mA sink current
Excludes programmable delay of 0 to 7μs in steps of 0.5μs
V CC - 0.2
0.1
200
V
V
ns
ON-CHIP TEMPERATURE SENSOR
Digital Output Code
Temperature Step Size
Read-out at DOUT pin through SPI
A4:A0 = 00111, D4:D0
T A = +25°C
T A = +85°C
T A = -40°C
01111
11001
00100
5
°C
_______________________________________________________________________________________
7
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