CDMA IF VGAs and I/Q Demodulators
with VCO and Synthesizer
Typical Operating Characteristics (continued)
(MAX2306/MAX2308/MAX2309 EV kits, V CC = +2.75V, registers set to default power-up states, f IN = 183.7MHz, f REF = 19.2MHz,
synthesizer locked with passive 3rd-order lead-lag loop filter, SHDN = high, VGC set for +35dB voltage gain, differential output load
= 10k ? , all power levels referred to 50 ? , T A = +25°C, unless otherwise noted.)
2500
IF PORT PARALLEL RESISTANCE
vs. FREQUENCY
1.2
IF PORT PARALLEL CAPACITANCE
vs. FREQUENCY
2300
2100
1900
1700
1500
1300
1100
900
700
500
CDMA PORT
MEASURED DIFFERENTIALLY
FM PORT
1.1
1.0
0.9
0.8
0.7
0.6
0.5
MEASURED DIFFERENTIALLY
FM PORT
CDMA PORT
0
100
200
300
400
500
600
0
100
200
300
400
500
600
-240
FREQUENCY (MHz)
TANK PORT PARALLEL RESISTANCE
vs. FREQUENCY
1.2
FREQUENCY (MHz)
TANK PORT PARALLEL CAPACITANCE
vs. FREQUENCY
-260
-280
-300
-320
-340
-360
-380
-400
MEASURED DIFFERENTIALLY
TANKH
TANKL
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
TANK
TANKL
MEASURED DIFFERENTIALLY
80
160
240 320
400 480
560
80
160
240
320
400
400
560
FREQUENCY (MHz)
LOOUT PORT
S11 vs. FREQUENCY
START: 10MHz
STOP: 600MHz
FREQUENCY (MHz)
6
_______________________________________________________________________________________
相关PDF资料
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相关代理商/技术参数
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MAX230CWP+ 功能描述:RS-232接口集成电路 5V MultiCh RS-232 Driver/Receiver RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX230CWP+T 功能描述:RS-232接口集成电路 5V MultiCh RS-232 Driver/Receiver RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装:
MAX230CWP-T 功能描述:RS-232接口集成电路 RoHS:否 制造商:Exar 数据速率:52 Mbps 工作电源电压:5 V 电源电流:300 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:LQFP-100 封装: