参数资料
型号: MAX2820-MAX2821
厂商: Maxim Integrated Products, Inc.
英文描述: 2.4GHz 802.11b Zero-IF Transceivers
中文描述: 基于2.4GHz 802.11b零IF收发器
文件页数: 6/23页
文件大小: 392K
代理商: MAX2820-MAX2821
M
2.4GHz 802.11b Zero-IF Transceivers
6
_______________________________________________________________________________________
AC ELECTRICAL CHARACTERISTICS
SYNTHESIZER
(MAX2820/MAX2821 EV kit: V
CC
= +2.7V to +3.6V, f
RF
and f
LO
= 2400MHz to 2499MHz, f
OSC
= 22MHz or 44MHz, SHDNB = V
IH
,
CSB = V
IH
, RBIAS = 12k
, I
CP
= +2mA, BW
PLL
= 45kHz, registers set to default power-up settings, T
A
= +25
°
C, unless otherwise
noted. Typical values are at V
CC
= +2.7V, f
LO
= 2437MHz, f
OSC
= 22MHz, unless otherwise noted.) (Note 11)
AC ELECTRICAL CHARACTERISTICS
SYSTEM TIMING
(MAX2820/MAX2821 EV kit: V
CC
= +2.7V to +3.6V, f
RF
and f
LO
= 2400MHz to 2499MHz, f
OSC
= 22MHz or 44MHz, SHDNB = V
IH
,
CSB = V
IH
, RBIAS = 12k
, I
CP
= +2mA, BW
LOOP
= 45kHz, registers set to default power-up settings, T
A
= +25
°
C, unless otherwise
noted. Typical values are at V
CC
= +2.7V, f
LO
= 2437MHz, f
OSC
= 22MHz, unless otherwise noted.) (Note 11)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
FREQUENCY SYNTHESIZER
LO Frequency Range
2400
2499
MHz
R(0) = 0
R(0) = 1
22
44
Reference Frequency
MHz
Channel Spacing
1
MHz
ICP = 0
ICP = 1
±
2
±
1
Charge-Pump Output Current
mA
Charge-Pump Compliance Range
0.4
V
CC
- 0.4
V
-11MHz
f
OFFSET
11MHz
-22MHz
f
OFFSET
< -11MHz,
11MHz < f
OFFSET
22MHz
f
OFFSET
< -22MHz, f
OFFSET
> 22MHz
f
OFFSET
= 10kHz
f
OFFSET
= 100kHz
Noise integrated from 100Hz to 10MHz,
measured at the TX_RF output
-41
-75
Reference Spur Level (Note 10)
-90
-80
-87
dBc
Closed-Loop Phase Noise
dBc/Hz
Closed-Loop Integrated Phase Noise
2.5
°
RMS
Reference Oscillator Input Level
VOLTAGE-CONTROLLED OSCILLATOR
VCO Tuning Voltage Range
AC-coupled sine wave input
200
300
500
mV
P-P
0.4
2.3
V
f
LO
= 2400MHz
f
LO
= 2499MHz
170
130
VCO Tuning Gain
MHz/V
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Channel-Switching Time
f
LO
= 2400MHz
2499MHz,
f
LO
settles to
±
10kHz (Note 9)
150
200
μs
RX to TX, f
LO
settles to within
±
30kHz, relative to rising edge of TX_ON
5
RX/TX Turnaround Time
TX to RX, f
LO
settles to within
±
30kHz, relative to rising edge of RX_ON
10
μs
相关PDF资料
PDF描述
MAX2820EGM-TD 2.4GHz 802.11b Zero-IF Transceivers
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