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參數(shù)資料
| 型號： | MT8931B |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | () |
| 中文描述： | （） |
| 文件頁數(shù)： | 20/29頁 |
| 文件大?。?/td> | 277K |
| 代理商： | MT8931B |
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MSAN-141
Application Note
A-220
the analog PLL is its capability to reject input jitter.
The PLL has a second order jitter transfer function
with a 3 dB cutoff point situated at 1kHz as shown in
Figure 22.
Figure 22 - Jitter Transfer Function
In the NT mode, the SNIC will produce a 192 kHz
baud rate clock by dividing the 4096 kHz system
clock. In the TE mode, the 192 kbit/s line data will
generate the 4096 kHz system clock as well as the
system frame pulse.
6.0
TRANSFORMER SPECIFICATION
The SNIC interfaces to the line port through 2:1
transformers whose typical schematic is shown in
Figure 23. To meet all the CCITT I.430 and ANSI
T1.605 Specifications on the S interface, the
specifications of the transformers used with the
SNIC must comply with the values listed in Table 6.
Figure 25 shows the test circuit used to measure the
longitudinal conversion loss parameter given in Table
6.
Figure 23 - Typical Transformer Schematic
Figure 24 - Filtran TPW3852 connected to
MT8930B/31B
(Protection Circuitry not shown)
Jitter out
Jitter in
(dB)
0
1
20
(dB/dec)
1
Frequency (kHz)
Secondary
Primary
2 : 1
SNIC
LTx
V
Bias
LRx
40
V
DD
+
10
μ
F
2 : 1
2 : 1
5
4
3
3
4
5
6
1
2
2
1
6
Table 6. MT8930B/31B Transformer Specification
Transformer Parameter
Min.
Typ.
Max.
Units
Test Conditions
1. DC Resistance
Primary
Secondary
2.0
3.0
Ohm
Ohm
2.
DCR Match Between Split Windings
5
%
3.
Turns Ratio Primary:Secondary
1:2
4. Inductance
Primary (L
P
)
Secondary (L
S
)
22
88
30
41
164
mH
mH
μ
H
μ
H
10kHz @ 1V
rms
5. Leakage Inductance
Primary (L
LP
)
Secondary (L
LS
)
6
24
Secondary Short Circuited,10kHz @ 1V
rms
Primary Short Circuited,10kHz @ 1V
rms
6. Distributed Capacitance Primary (C
P
)
Secondary (C
S
)
152
38
pF
pF
Secondary Open Circuit, 1 MHz @ 1V
rms
Primary Open Circuit, 1 MHz @ 1V
rms
7.
Interwinding Capacitance
30
pF
1 MHz @ 1V
rms
8.
Dielectric Strength
Primary to Secondary
1500
V
rms
9.
Volt-Microsecond Prod.
100
1000
V-
μ
S
10.
Longitudinal Conversion Loss
30
43
dB
dB
Termination 1, f=1.2 MHz. See Test Cct. Fig.3
Termination 2, f=1.2 MHz. See Test Cct. Fig.3
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MT8931BC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Subscriber Network Interface Circuit |
| MT8931BE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Subscriber Network Interface Circuit |
| MT8931BP | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Subscriber Network Interface Circuit |
| MT8931C | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Subscriber Network Interface Circuit |
| MT8931C-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Subscriber Network Interface Circuit |
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