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參數(shù)資料
| 型號： | RF2705 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 887664300 |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, PQCC24 |
| 封裝： | 4 X 4 MM, PLASTIC, QFN-24 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 379K |
| 代理商： | RF2705 |
5-118
RF2705
Rev A4 041026
Parameter
Specification
Typ.
Unit
Condition
Min.
Max.
Output Performance with CW Baseband Inputs
Low Band Mode (GSM850/GSM900)
Mode=Low Band F
LO
x1 (see Control Logic Truth Table for Mode Control Settings)
VGA and PA Driver
V
CC
=2.7V, T=+25°C,
LO=824MHz to 915MHz at 0dBm,
IQ=800mV
P-P
** at 100kHz,
unless otherwise noted
GC=2.0V, IQ=1.2V
P-P
8PSK
GC=2.0V, IQ=800mV
P-P
at 100kHz
GC=1.5V, IQ=800mV
P-P
at 100kHz
GC=1.0V, IQ=800mV
P-P
at 100kHz
GC=0.5V, IQ=800mV
P-P
at 100kHz
GC=0.2V, IQ=800mV
P-P
at 100kHz
Output Power 8PSK Modulated*
Output Power CW
+2.5
2.2
-1.2
-13.5
-30
-40
dBm
dBm
dBm
dBm
dBm
dBm
V
dB
0
+5
*
-44
0.2
-37
2.0
Gain Control Voltage Range
Gain Control Range
42
Difference between output power at
GC=2.0V and GC=0.2V
Calculated between GC=0.5V and 1.5V
Gain Control Slope
28
dB/V
Modulator
Sideband Suppression
-36
-36
-36
-36
-36
-44
-44
-44
-44
-40
-30
-30
-30
-30
-30
-34
-34
-34
-34
-34
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
GC=2.0V, No I/Q adjustment
GC=1.5V, No I/Q adjustment
GC=1.0V, No I/Q adjustment
GC=0.5V, No I/Q adjustment
GC=0.2V, No I/Q adjustment
GC=2.0V, No I/Q adjustment
GC=1.5V, No I/Q adjustment
GC=1.0V, No I/Q adjustment
GC=0.5V, No I/Q adjustment
GC=0.2V, No I/Q adjustment
*
*
*
*
Carrier Suppression
*
3rd Harmonic of Modulation
Suppression at F
C
-3x300kHz
Spurious Outputs
Spurious Outputs at Integer
Harmonics of 1/2xFLOHB*
-49
-40
dBc
GC=2.0V
F
LO
/2 Mode
GC=2.0V, I/Q=800mV
P-P
at 100kHz
FLO HB
-62.0
-19.0
dBm
dBm
Second harmonic of carrier and LO leakage
Third harmonic of carrier
(3/2)xFLO LB
Output Compression
Output P1dB*
* Not tested in Production
** Provides the same output power as modulated signal with associated crest factor.
+7.0
dBm
I/Q=100kHz
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