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參數(shù)資料
| 型號： | MC13155D |
| 廠商： | MOTOROLA INC |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | WIDEBAND FM IF |
| 中文描述： | SPECIALTY TELECOM CIRCUIT, PDSO16 |
| 封裝： | PLASTIC, SO-16 |
| 文件頁數(shù)： | 6/16頁 |
| 文件大?。?/td> | 267K |
| 代理商： | MC13155D |
MC13155
6
MOTOROLA ANALOG IC DEVICE DATA
In the S–parameters measurements, the IF is treated as a
two–port linear class A amplifier. The IF amplifier is
measured with a single–ended input and output configuration
in which the Pins 16 and 7 are terminated in the series
combination of a 47
resistor and a 10 nF capacitor to VCC
ground (see Figure 14. S–Parameter Test Circuit).
The S–parameters are in polar form as the magnitude
(MAG) and angle (ANG). Also listed in the tables are the
calculated values for the stability factor (K) and the Maximum
Available Gain (MAG). These terms are related in the
following equations:
K = (1– IS11 I2 – I S22 I2 + I
I2 ) / ( 2 I S12 S21 I )
where: I
I = I S11 S22 – S12 S21 I.
MAG = 10 log I S21 I / I S12 I + 10 log I K – ( K2 – 1)1/2 I
where: K > 1. The necessary and sufficient conditions for
unconditional stability are given as K > 1:
B1 = 1 + I S11 I2 – I S22 I2 – I
I2 > 0
IN2
DEC2
VEE1
RSSI
Buffer
RSSI
VEE2
LIMO2
QUAD2
QUAD1
LIMO1
VCC2
DETO2
DETO1
VCC1
DEC1
IN1
9
10
11
12
13
14
15
16
8
7
6
5
4
3
2
1
Figure 14. S–Parameter Test Circuit
SMA
IF
Input
VEE
+
100n
1.0n
47
1.0n
C15
1.0n
C2
1.0n
SMA
47
1.0n
IF
Output
10
μ
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