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| 型号： | MC13851-2140EVK |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 4/34页 |
| 文件大小： | 0K |
| 描述： | IC MC13851_2140_EVK |
| 其它有关文件： | MC13851 Overview |
| 标准包装： | 1 |
| 类型： | 放大器 |
| 频率： | 2.14GHz |
| 适用于相关产品： | MC13851 |
| 已供物品： | 板 |
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Electrical Specifications
Table 2. Recommended Operating Conditions (continued)
Characteristic
Symbol
Min
Typ
Max
Unit
Logic voltage
Input high voltage
Input low voltage
—
1.25
0
1.8
0
V CC
0.80
Vdc
Vdc
Table 3 shows the use of the Gain and Enable pins to select Active mode (High Gain), Bypass mode (Low
Gain) or Standby mode (Disable) operation.
Table 3. Truth Table
Enable
Disable
Pin Function
Pin Name
Low Gain
High Gain
Low Gain
High Gain
Logic Circuit Bias Vcc
Toggles Gain Mode (Active or Bypass)
Toggles LNA On/Off
Vcc
Gain
Enable
1
0
1
1
1
1
1
0
0
1
1
0
Notes:
1. Logic state 1 equals Vcc voltage. Logic state of 0 equals ground potential.
2. Vcc is inductively coupled to LNA Out pin and Vcc pin
3. Minimum logic state 1 for enable and gain pins is 1.25V
4. Maximum logic state 0 for enable and gain pins is 0.8V
Table 4 lists the electrical characteristics associated with noise performance measured in a 50 Ω system.
Additional noise parameters are listed in Table 15 and Table 16 . Also listed are the typical Icc and RF turn
on times for the device. Information and details on the boards are shown in Section 4, “Printed Circuit and
Bill of Materials .”
Table 4. Electrical Characteristics (Vcc = 2.75 V, Ta = 25°C)
Characteristic
Symbol
Min
Typ
Max
Unit
Insertion Gain
R1=1.2 k Ω , Freq=1.575 GHz
17.4
18.9
—
R1=1.2 k Ω , Freq=2.14 GHz
|S21|
2
14.5
16
—
dB
R1=1.5 k Ω , Freq=1.575 GHz
R1=1.5 k Ω , Freq=2.14 GHz
16.4
14.9
17.9
16.4
—
—
Maximum Stable Gain and/or Maximum Available Gain [Note1]
R1=1.2 k Ω , Freq=1.575 GHz
21.1
22.6
—
R1=1.2 k Ω , Freq=2.14 GHz
R1=1.5 k Ω , Freq=1.575 GHz
R1=1.5 k Ω , Freq=2.14 GHz
MSG, MAG
19.6
19
18.1
21.1
20.5
19.6
—
—
—
dB
Minimum Noise Figure
R1=1.2 k Ω , Freq=1.575 GHz
—
0.97
1.3
R1=1.2 k Ω , Freq=2.14 GHz
R1=1.5 k Ω , Freq=1.575 GHz
R1=1.5 k Ω , Freq=2.14 GHz
NFmin
—
—
—
1.07
0.98
1.1
1.4
1.3
1.4
dB
MC13851 Advance Information, Rev. 2.0
4
Freescale Semiconductor
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