參數(shù)資料
型號(hào)： XRT73R12
廠商： Exar Corporation
英文描述： TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
中文描述： 第十二章通道E3/DS3/STS-1線路接口單元
文件頁(yè)數(shù)： 42/87頁(yè)
文件大小： 436K
代理商： XRT73R12
XRT73R12
REV. P1.0.3
PRELIMINARY
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
39
5.2
Jitter Transfer function is defined as the ratio of jitter on the output relative to the jitter applied on the input
versus frequency. There are two distinct characteristics in jitter transfer, jitter gain (jitter peaking) defined as
the highest ratio above 0dB and jitter transfer bandwidth. The overall jitter transfer bandwidth is controlled by a
low bandwidth loop, typically using a voltage-controlled crystal oscillator (VCXO).
The jitter transfer function is a ratio between the jitter output and jitter input for a component, or system often
expressed in dB. A negative dB jitter transfer indicates the element removed jitter. A positive dB jitter transfer
indicates the element added jitter. A zero dB jitter transfer indicates the element had no effect on jitter.
Table 10 shows the jitter transfer characteristics and/or jitter attenuation specifications for various data rates:
J
ITTER
T
RANSFER
N
OTE
:
The above specifications can be met only with a jitter attenuator that supports E3/DS3/STS-1 rates.
T
ABLE
9: J
ITTER
A
MPLITUDE
VERSUS
M
ODULATION
F
REQUENCY
(J
ITTER
T
OLERANCE
)
B
IT
R
ATE
(
KB
/
S
)
S
TANDARD
I
NPUT
J
ITTER
A
MPLITUDE
(UI
P
-
P
)
M
ODULATION
F
REQUENCY
A1
A2
A3
F
1(H
Z
)
F
2(H
Z
)
F
3(
K
H
Z
)
F
4(
K
H
Z
)
F
5(
K
H
Z
)
34368
ITU-T G.823
1.5
0.15
-
100
1000
10
800
-
44736
GR-499
CORE Cat I
5
0.1
-
10
2.3k
60
300
-
44736
GR-499
CORE Cat II
10
0.3
-
10
669
22.3
300
-
51840
GR-253
CORE Cat II
15
1.5
0.15
10
30
300
2
20
T
ABLE
10: J
ITTER
T
RANSFER
S
PECIFICATION
/R
EFERENCES
E3
DS3
STS-1
ETSI TBR-24
GR-499 CORE section 7.3.2
Category I and Category II
GR-253 CORE section 5.6.2.1
T
ABLE
11: J
ITTER
T
RANSFER
P
ASS
M
ASKS
R
ATE
(
KBITS
)
M
ASK
F1
(H
Z
)
F2
(H
Z
)
F3
(H
Z
)
F4
(
K
H
Z
)
A1(dB)
A2(dB)
34368
G.823
ETSI-TBR-24
100
300
3
K
800
K
0.5
-19.5
44736
GR-499, Cat I
GR-499, Cat II
GR-253 CORE
10
10
10
10k
56.6k
40
-
-
-
15k
300k
15k
0.1
0.1
0.1
-
-
-
51840
GR-253 CORE
10
40k
-
400k
0.1
-
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT73R12_07 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R12_0710 制造商:EXAR 制造商全稱:EXAR 功能描述:TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
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XRT73R12IB-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
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