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參數(shù)資料
| 型號(hào)： | RF2890 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 衰減器 |
| 英文描述： | DUAL-BAND CDMA CELLULAR/GPS LOW NOISE AMPLIFIER/MIXER |
| 中文描述： | 800 MHz - 900 MHz RF/MICROWAVE WIDE BAND LOW POWER AMPLIFIER |
| 封裝： | 4 X 4 MM, ROHS COMPLIANT, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 5/14頁 |
| 文件大?。?/td> | 183K |
| 代理商： | RF2890 |
8-413
RF2890
Rev A4 040421
Operation Mode Control Table
Mode
Cellular CDMA
GPS
Gain Control Logic Table
Gain Setting
VCO Options and Divider Logic Table
Dual-Band Application
Dual VCO Configuration
2GHz CDMA VCO
1.4GHz GPS VCO
DIV SEL pin tied to BAND SEL
MODE
DIV SELECT
CDMA Cellular
GPS
BAND SEL
0
1
Resulting Gain State
GPS
LNA
High Gain
High Gain
High Gain
High Gain
VG1
0
1
1
0
VG2
0
0
1
1
Cellular
LNA
High Gain
Mid Gain
Low Gain
Low Gain
Comments
Cellular CDMA IMD Test 1 and 2
Cellular CDMA IMD Test 3 and 4
Cellular CDMA IMD Test 5 and 6
Cellular CDMA IMD Test 5 and 6
CONTROL PINS
ON-CHIP LO PRESCALER RESULT
Divide-by-2
ON
OFF
BAND SEL
0
1
0
1
Dual-Band Application
Dual VCO Configuration
1GHz CDMA VCO
1.4GHz GPS VCO
DIV SEL pin tied to VCC
MODE
CONTROL PINS
DIV SELECT
1
1
ON-CHIP LO PRESCALER RESULT
Divide-by-2
OFF
OFF
BAND SEL
0
1
CDMA Cellular
GPS
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