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Maxim RRFP1A/T Instrukcja Użytkownika Strona 12

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Single-/Dual-Band 802.11a/b/g
World-Band Transceiver ICs
AC ELECTRICAL CHARACTERISTICS—Miscellaneous Blocks
(MAX2828/MAX2829 evaluation kits: V
CC
= +2.7V, f
RF
= 2.437GHz (802.11g) or f
RF
= 5.25GHz (802.11a), f
REFOSC
= 40MHz, SHDN =
CS = high, SCLK = DIN = low, R
BIAS
= 11kΩ, T
A
= +25°C, unless otherwise noted.)
PARAMETER CONDITIONS
MIN TYP MAX
UNITS
PA BIAS DAC
Number of Programmable Bits 6 Bits
Minimum Output Sink Current
D5:D0 = 000000 (see the PA Bias DAC Register
Definition section)
0µA
Maximum Output Sink Current
D5:D0 = 111111 (see the PA Bias DAC Register
Definition section), output voltage = 0.8V
313 µA
Turn-On Time
D9:D6 = 0000 (see the PA Bias DAC Register Definition
section)
0.2 µs
DNL 1 LSB
ON-CHIP TEMPERATURE SENSOR
T
A
= -40°C 0.5
T
A
= +25°C
1.05
Output Voltage
D11 = 1 (see the Rx
Control/RSSI
Register Definition
section)
T
A
= +85°C 1.6
V
AC ELECTRICAL CHARACTERISTICS—Timing
(MAX2828/MAX2829 evaluation kits: V
CC
= 2.7V, f
RF
= 2.437GHz (802.11g) or f
RF
= 5.25GHz (802.11a), f
REFOSC
= 40MHz, SHDN =
CS = high, SCLK = DIN = low, PLL loop bandwidth = 150kHz, R
BIAS
= 11kΩ, T
A
= +25°C, unless otherwise noted.)
PARAMETER CONDITIONS
MIN
TYP
MAX
UNITS
SYSTEM TIMING (See Figure 1)
Turn-On Time From SHDN rising edge (PLL locked) 50 µs
Shutdown Time 2µs
f
RF
= 2.412GHz to 2.5GHz 25
f
RF
= 5.15GHz to 5.35GHz 35
f
RF
= 5.45GHz to 5.875GHz
130
Channel Switching Time
f
RF
= 4.9GHz to 5.875GHz
130
µs
Rx to Tx 1
Rx/Tx Turnaround Time
Measured from Tx or Rx enable
rising edge; signal settling to
within ±2dB of steady state
Tx to Rx, RXHP = 1
1.2
µs
Tx Turn-On Time (From Standby
Mode)
From Tx enable rising edge; signal settling to within ±2dB
of steady state
1µs
Rx Turn-On Time (From Standby
Mode)
From Rx enable rising edge; signal settling to within
±2dB of steady state
1.2
µs
MAX2828/MAX2829
12
Maxim Integrated
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