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2.3GHz to 2.7GHz Wireless
Broadband RF Transceiver
AC ELECTRICAL CHARACTERISTICS—MISCELLANEOUS BLOCKS
(MAX2837 evaluation kit: V CC_ = 2.8V, f REF = 40MHz, ENABLE = CS = high, SCLK = DIN = low, T A = +25°C, unless otherwise noted.)
(Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
PA BIAS DAC: CURRENT MODE
Numbers of Bits
6
Bits
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 7 μs in steps
of 0.5 μs
0.8
0
310
200
1
2.0
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 7 μs in steps
of 0.5 μs
V CC -
0.2
0.1
200
V
V
ns
CRYSTAL OSCILLATOR
On-Chip Tuning Capacitance
Range
On-Chip Tuning Capacitance
Step Size
Maximum capacitance, A4:A0 = 11000,
D6:D0 =1111111
Minimum capacitance, A4:A0 = 11000,
D6:D0 =0000000
15.5
0.5
0.12
pF
pF
ON-CHIP TEMPERATURE SENSOR
Digital Output Code
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
11101
00001
AC ELECTRICAL CHARACTERISTICS—TIMING
(MAX2837 evaluation kit: V CC_ = 2.8V, f LO = 2.5GHz, f REF = 40MHz, ENABLE = CS = high, SCLK = DIN = low, PLL loop bandwidth =
120kHz, T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM TIMING
Measured from Tx or
Rx enable rising
Rx to Tx
2
Turnaround Time
edge; signal settling
μs
to within 0.5dB of
steady state
Tx to Rx, RXHP = 1
2
Tx Turn-On Time
(from Standby Mode)
Measured from Tx enable rising edge; signal
settling to within 0.5dB of steady state
2
μs
8
_______________________________________________________________________________________
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