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參數(shù)資料
| 型號(hào)： | 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)： | 15/18頁 |
| 文件大小： | 413K |
| 代理商： | RF2948B |
11-253
RF2948B
Rev A6 040930
NOTFORNEWDESGNS
RX Gain versus IF LO Amplitude and Temp
(V
CC
=3V; RX
V
GC
=1.6V; RX IF IN=375MHz, I and Q OUT~650mV
P-P
; IF LO=748MHz)
36.5
37.0
37.5
38.0
38.5
39.5
40.0
40.5
41.0
41.5
-30.0
-25.0
-20.0
-15.0
LO Ampl. (dBm)
-10.0
-5.0
0.0
5.0
Gain, 25°C
Gain, 85°C
Gain, -40°C
RX IQ Amplitude and Phase Error versus IF LO Amplitude and Temp
(V
CC
=3V; RX V
GC
=1.6V; RX IF IN=375MHz, I&Q OUT~650mV
P-P
; IF LO=748MHz)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
-30.0
-25.0
-20.0
-15.0
-10.0
-5.0
0.0
5.0
LO Amplitude (dBm)
A
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Ampl. Err, 25°C
Ampl. Err, 85°C
Ampl. Err, -40°C
Phase Err, 25°C
Phase Err, 85°C
Phase Err, -40°C
RX OP1dB versus VGC and Temp (
V
CC
= 3 V; RX IF
IN
= 375
MHz; IF LO = 748 MHz at -10 dBm)
600.0
650.0
700.0
750.0
800.0
850.0
900.0
950.0
1000.0
1050.0
1100.0
1150.0
1200.0
1250.0
1300.0
1350.0
1400.0
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
RX VGC (V
DC
)
V
P
)
RX Voltage Gain versus V
GC
and V
CC
(Temp=25
o
C; RX IF
IN=375MHz; I and Q out
～
300mV
P-P
IF LO=748MHz @ -10dBm)
-5.00
0.00
5.00
10.00
15.00
20.00
25.00
30.00
40.00
45.00
50.00
55.00
60.00
65.00
70.00
75.00
1.20
1.30
1.40
1.50
1.60
1.70
1.80
1.90
2.00
RX V
GC
(V
DC
)
Gain, 2.7V
Gain, 3V
Gain, 3.3V
RX 3dB BW versus R
BW
(Temp=Ambient, V
CC
=3.15V, V
GC
=1.6V,
RX IF
IN
=-67dBm, IF LO=560MHz@-10dBm)
0.0
5.0
10.0
15.0
20.0
25.0
30.0
1.0
10.0
100.0
1000.0
R
BW
[k
]
3
TX 3dB BW Point versus R
BW
(Broadband 50
match on IFOUT, Temp=Ambient,
V
CC
=3.15V, GCTX=1.5V, I&Qin=100mV
P-P
, IFLO=560MHz@-10dBm)
50.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
1.0
10.0
100.0
1000.0
R
BW
[k
]
3
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