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RF2641 参数 Datasheet PDF下载

RF2641图片预览
型号: RF2641
PDF下载: 下载PDF文件 查看货源
内容描述: CDMA上变频器/ BPSK调制器 [CDMA UPCONVERTER/BPSK MODULATOR]
分类和应用: PC
文件页数/大小: 6 页 / 99 K
品牌: RFMD [ RF MICRO DEVICES ]
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RF2641  
Pin  
1
Function Description  
Interface Schematic  
Balanced IF input pin. This pin is internally DC-biased and should be  
IF-  
BIAS  
DC-blocked if connected to a device with a DC level present. For single-  
ended input operation, one pin is used as an input and the other IF  
input is AC-coupled to ground. The balanced, as well as single-ended,  
input impedance is 260.  
130  
130  
IF+  
IF-  
Same as pin 1, except complementary input.  
See Pin 1.  
2
3
IF+  
BYP  
Bypass pin for internal bias circuitry. Bypass with a 1nF capacitor.  
BYP  
Balanced LO input pin. This pin is internally DC-biased and should be  
DC-blocked if connected to a device with a DC level present. For single-  
ended input operation, one pin is used as an input and the other LO  
input is AC-coupled to ground. The balanced, as well as single-ended,  
input impedance is 50.  
4
LO-  
BIAS  
6
LO-  
LO+  
Same as pin 4, except complementary input.  
See Pin 4.  
5
6
LO+  
GND  
Ground connection. For best performance, keep traces physically short  
and connect immediately to ground plane.  
Supply voltage pin. External bypassing is required. External RF, LO,  
and IF bypassing is required. The trace length between the pin and the  
bypass capacitors should be minimized. The ground side of the bypass  
capacitors should connect immediately to ground plane.  
7
VCC  
RF output pin.  
8
RF OUT  
300  
RF OUT  
Rev A5 010720  
6-43