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參數(shù)資料
| 型號： | RF2948B |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 2.4GHz SPREAD-SPECTRUM TRANSCEIVER |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT, QCC32 |
| 封裝： | 5 X 5 MM, QFN-32 |
| 文件頁數(shù)： | 2/18頁 |
| 文件大?。?/td> | 413K |
| 代理商： | RF2948B |
11-240
RF2948B
Rev A6 040930
NOTFORNEWDESGNS
Absolute Maximum Ratings
Parameter
Supply Voltage
Control Voltages
Input RF Level
LO Input Levels
Operating Ambient Temperature
Storage Temperature
MSL JEDEC level 3 at 240
o
C
Rating
-0.5 to +3.6
-0.5 to +3.6
+12
+5
-40 to +85
-40 to +150
Unit
V
DC
V
DC
dBm
dBm
°C
°C
Parameter
Specification
Typ.
Unit
Condition
Min.
Max.
Overall Receiver
T=25°C, V
CC
=3.0V, Freq=374MHz,
BW
=10k
RX Frequency Range
Cascaded Voltage Gain
45
65
0
5.5
374
500
76
3
35.0
MHz
dB
dB
dB
dB
μ
V
dB
μ
V
dBm
°
RX V
GC
=1.2V
RX V
GC
=2.0V
Varies with gain.
V
GC
<1.2V
V
GC
>2.0V
f=374MHz, LO Power=-10dBm
With expected LO amplitude and harmonic
content.
Cascaded Noise Figure
Cascaded Input IP3
Cascaded Input IP3
IF LO Leakage
Quadrature Phase Variation
50
115
-68
0
±3
Quadrature Amplitude Variation
Output P1dB
Distortion
IF AMP and Quad Demod
Gain
0
+1
dB
V
PP
%
1.2
1.4<RX V
GC
<1.8V
At 0.70V
PP
output level.
2
4.5
70
5.5
7.5
dB
V
GC
=1.95V=min gain
V
GC
=1.25V max gain
Single Sideband, max gain.
Single-ended. 374MHz
65
Noise Figure
IF Input Impedance
RX Baseband Amplifiers
THD
Output Voltage
DC Output Voltage
RX Baseband Filters
Baseband Filter 3dB Bandwidth
dB
515-j994
2
%
At 0.707V
P-P
output level
L
>5k
, C
L
<15pF
700
VREF1
mV
PP
mV
VREF1-15
VREF1+15
1
10
35
MHz
5th order Bessel LPF.
Set by BW CTRL (RBW)
Passband Ripple
Baseband Filter 3dB
Frequency Accuracy
Group Delay
0.1
±30
dB
%
±10
15
ns
At 35MHz, increasing as bandwidth
decreases.
At 2MHz.
Group Delay
Baseband Filter
Ultimate Rejection
400
>80
ns
dB
Designed to drive>5k
, <15pF load.
Caution!
ESD sensitive device.
RF Micro Devices believes the furnished information is correct and accurate
at the time of this printing. However, RF Micro Devices reserves the right to
make changes to its products without notice. RF Micro Devices does not
Refer to “Handling of PSOP and PSSOP Products” on page 16-15 for
special handling information.
Refer to “Soldering Specifications” on page 16-13 for special solder-
ing information.
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