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参数资料
| 型号： | MC13110AFB |
| 厂商： | MOTOROLA INC |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| 中文描述： | TELECOM, CORDLESS, RF AND BASEBAND CIRCUIT, PQFP52 |
| 封装： | PLASTIC, QFP-52 |
| 文件页数： | 42/68页 |
| 文件大小： | 1316K |
| 代理商： | MC13110AFB |
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MC13110A/B MC13111A/B
42
MOTOROLA ANALOG IC DEVICE DATA
the first LO may effect parameters like adjacent channel
rejection and intermodulation. Figure 100 shows a loopfilter
architecture incorporating an additional pole.
From
Phase
Detector
To VCO
R2
C2
C1
Figure 100. Loop Filter
with Additional Integrating Element
C3
R3
For the additional pole formed by R3 and C3 to be efficient,
the cut–off frequency must be much lower than the reference
frequency. However, it must also be higher than wp in order
not to compromise phase margin too much. The following
equations were derived in a similar manner as for the basic
filter previously described.
Similarly, it can be shown:
Aopenloop
–
KpdKo
C3
)
– w2C1C2C3R2R3
Knw2
(
C1
C2
1
1
jwT2
jwT1
(16)
In which:
T1
(
C1
C1
C2
)
T2
C2
(
C1C2
)
T3
w2C1T2T3
C3
(17)
T2
R2C2
T3
R3C3
(19)
(18)
From T1 it can be derived that:
C2
(
T1
T2
)
C3
C1 T2
T3
T1
T1
w2T1T2T3
T3
(20)
In analogy with (10), by forcing the loopgain to 1 (0 dB) at
wp, we obtain:
C1
(
T1
T2
)
C2T3
C3T2
KpdKo
Knwp2
1
wpT2
2
1
wpT1
2
(21)
Solving for C1:
C1
(
T2
T1
)
T3C3
(
T3
T1
)
T2C3
(
T3
T1
)
KpdKoT1
wp2Kn
1
wpT2
2
1
wpT1
2
(
T3
T1
)
T2
(
T3
T1
)
T3
T2
T3
T1
wp2T1T2T3 T3
(22)
By selecting wp via (9), the additional time constant
expressed as T3, can be set to:
T3
1
Kwp
(23)
相关PDF资料 |
PDF描述 |
|---|---|
| MC13110AFTA | UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| MC13110BFB | UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| MC13111AFB | UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| MC13110BFTA | UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| MC13111AFTA | UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC13110AFTA | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| MC13110BFB | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| MC13110BFTA | 制造商:Motorola 功能描述:MOTOROLA 9942 |
| MC13111AFB | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:UNIVERSAL NARROWBAND FM RECEIVER INTEGRATED CIRCUIT |
| MC13111AFTA | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:UNIVERSAL CORDLESS TELEPHONE SUBSYSTEM IC |
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