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參數(shù)資料
| 型號： | RF212-21 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Image-Reject Front End for Dual or Tri-Band GSM Applications |
| 中文描述： | 鏡像抑制前端雙或三頻GSM應(yīng)用 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 89K |
| 代理商： | RF212-21 |
RF212
Image-Reject Front End
4
May 24, 2000
Conexant
100780D
Proprietary Information and Specifications are Subject to Change
Table 5. Absolute Maximum Ratings
Parameter
Mnimum
Maximum
Units
Storage Temperature
40
+125
°C
Supply Voltage (VCC)
0.3
+3.6
V
Input Voltage Range
0.3
Vcc
V
Table 6. RF212 Recommended Operating Conditions
Parameter
Mn
Typical
Max
Units
Supply Voltage
2.7
3.0
3.6
V
Operating Temperature
30
+25
+85
°
C
Table 7. RF212 Electrical Specifications (1 of 3)
(T
A
= 25
°
C, Vcc = 2.7 V,
f
IF
= 400 MHz,
Plo
=
10 dBm)
Parameter
Symbol
Test Condition
Mn
Typical
Max
Units
EGSM900 Mode
Supply current::
Enable mode
Sleep mode
ENA = 1
ENA = 0
15
30
mA
μ
A
RF Input frequency
925
960
MHz
IF frequency
f
IF
350
400
450
MHz
LO to RF input isolation
30
dB
Input impedance
50
Power gain (for 2 k
differential output impedance):
High gain mode
Low gain mode 1
Low gain mode 2
Gain step 1
Gain step 2
Temperature coefficient
Gain variation versus frequency
G
MAX
1
G
MIN
1
G
MIN
2
G
STEP
1
G
STEP
2
F
TC
1
GAINSEL = 0
GAINSEL = 1, STEPSEL = 1
GAINSEL = 1, STEPSEL = 0
20
–24
–14
22
0
10
–22
–12
–0.02
25
–20
–10
0.8
dB
dB
dB
dB
dB
dB/
°
C
dB
Noise figure:
High gain
Low gain mode 1
Low gain mode 2
GAINSEL = 0
GAINSEL = 1, STEPSEL = 1
GAINSEL = 1, STEPSEL = 0
2.3
18
10
3.5
dB
dB
dB
Noise figure degradation with blocker:
High gain
22 dBmblocker,
GAINSEL = 0 (Note 1)
1.6
dB
Input 1 dB compression point
IP
1
D
B
high gain mode
low gain mode
22
18
–20
–13
dBm
dBm
Input third order intercept point
IP3
12
dBm
Differential IF shunt output resistance
2
k
Image rejection:
f
IF
= 400 MHz
f
IF
= 350 or 450 MHz
35
25
50
dB
dB
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