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參數(shù)資料
| 型號(hào)： | RF2689 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無(wú)繩電話/電話 |
| 英文描述： | W-CDMA/GSM/DCS RECEIVE AGC AND DEMODULATOR |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC20 |
| 封裝： | 4 X 4 MM, LCC-20 |
| 文件頁(yè)數(shù)： | 3/20頁(yè) |
| 文件大小： | 383K |
| 代理商： | RF2689 |
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Preliminary
7-41
RF2689
Rev A4 010815
7
Q
D
Parameter
Specification
Typ.
Unit
Condition
Min.
Max.
GSM/DCS Mode
Temp=25°C, V
CC
=3V, Z
LOAD
=60k
diff.,
LO=1080MHz@-10dBm, Z
SOURCE
=500
IF Frequency
2nd IF Frequency
LO Frequency
LO Input Level
LO Input Impedance
Maximum Voltage Gain
225
45
1080
-10
50
83
MHz
MHz
MHz
dBm
dB
-20
0
Single-ended.
V
GC
=0.5V to 2.4V
Pin-to-Pin voltage gain.
Note: 10dB additional voltage gain in input
match 50
to 500
.
77
Minimum Voltage Gain
Gain Variation versus V
CC
and
Temperature
Gain Control Voltage
-15
-3
-10
+2
-5
+3
dB
dB
0.3
2.4
V
Defined with external 10k
resistor in series
with GC pin. Analog gain control.
Maximum Gain. V
GC
=2.4V
Minimum Gain V
GC
=0.3V
Blockers at 800kHz and 1650kHz offset.
Maximum Gain. V
GC
=2.4V
Minimum Gain. V
GC
=0.3V
Maximum Gain. Measured differentially.
Out of band blocker causing 1dB of inband
gain compression. Blocker at 800kHz offset.
Maximum Gain. V
GC
=2.4V
Minimum Gain. V
GC
=0.3V
Single-ended
Balance. An external resistor across the dif-
ferential input is used to define the input
impedance.
Butterworth third order, F
C
250k+10%
3dB rolloff from 50kHz offset
Calibrated. F
CLK
=13MHz
Uncalibrated.
A measure of IQ gain match and IQ quadra-
ture accuracy. Measured for baseband fre-
quencies 100kHz to 2.5MHz.
Noise Figure
6
8
dB
80
82
Input IP3
-54
-5
1.5
-49
0
2.5
dBm
dBm
V
P-P
Inband Output 1dB Compression
Compression
-65
-17
1200
2400
dBm
dBm
GSM IF Input Impedance
Baseband 3dB Bandwidth
225
250
275
kHz
100
400
27
kHz
dB
Sideband Suppression
DC Offset
Baseband External Load
+60
60
mV
k
20
Resistive Load Impedance.
Differentially across op pins.
Capacitive Load Impedance.
To ground.
5
pF
Output DC Voltage
IQ Amplitude Balance
IQ Amplitude Balance
V
CC
-1.3
V
CC
-1.6
+0.2
+2
V
CC
-1.9
+0.5
+5
V
dB
V
GC
=0.3V, P
IN
=-30dBm
V
GC
=0.3V, P
IN
=-30dBm
degree
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