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参数资料
| 型号： | MC44BC374EJBR2 |
| 厂商： | Freescale Semiconductor |
| 文件页数： | 4/24页 |
| 文件大小： | 0K |
| 描述： | IC MODULATOR ANT BOOSTER 24TSSOP |
| 标准包装： | 2,500 |
| 类型： | 调制器 |
| 应用： | 机顶盒 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 带卷 (TR) |
MC44BC373/374 Technical Data
Antenna Booster/Splitter Characteristics
11 Antenna Booster /Splitter Characteristics
Unless otherwise stated: Vcc=5.0V, Ambient Temperature=25
o C, RF inputs/outputs into 75Ohm load.
All specifications use a BALUN at ANT1 & 2 inputs, assuming 0.8dB losses MAX from 40 MHz to
860 MHz.
11.1 Typical Performance—Gain and Isolation
Figure 6. Typical Performance—Gain and Isolation
Parameter
Test Conditions
Min
Typ
Max
Unit
Type
Frequency range
—
40
—
860
MHz
C
Gain
ANT1, 2 to VCRTU.
ANT1, 2 to TVOUT.
—
4
—
dB
B
Gain flatness
40 to 860MHz.
–1.5
+1.5dB
C
Noise figure
ANT1, 2 to VCRTU and TVOUT.
Modulator in standby mode.
5.57.59.5dB
C
Noise figure
ANT1, 2 to VCRTU and TVOUT.
Modulator in normal mode (ON).
6.58.510.5dB
C
VSWR
All pins, BST bias ON.
At TVout and VCRTU pins, BST bias OFF.
—
1.52.5
—
B
At TVin pins, BST bias OFF.
—
2.53
—
B
Intermodulation
(IMD)
Input level=90dBuV. See IMD measurement section.
F1
+F2 IMD
2F1–F2, 2F2
+F1, F1–F2 IMD
—
55
60
47
50
dBc
C
Isolations
From TVOUT or VCR to ANT1, 2
TVOUT/VCRTU
48
30
60
45
—
dBc
C
Gain ANT1,2 to VCRTU and TVOUT
1
2
3
4
5
6
7
0
150
300
450
600
750
900
Fr e que ncy (M hz )
dB
TV OU T
VC RTU
Is ola tion Output to Input
-90
-80
-70
-60
-50
-40
-30
0
150
300
450
600
750
900
Fr e que n cy (M hz)
dBc
Is olation Output t o Output
-70
-60
-50
-40
-30
-20
-10
0
150
300
450
600
750
900
Fr e q u e n cy (M h z )
dBc
Typical
Minimum specification
Maximum specification
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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