參數(shù)資料
型號(hào): XRT7302
廠商: Exar Corporation
英文描述: 2 Channel E3/DS3/STS-1 Line Interface Unit(2通道 E3/DS3/STS-1線接口單元)
中文描述: 2頻道E3/DS3/STS-1線路接口單元(2通道E3/DS3/STS-1線接口單元)
文件頁(yè)數(shù): 21/62頁(yè)
文件大小: 715K
代理商: XRT7302
á
2 CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT7302
REV. 1.1.6
17
E
LECTRICAL
C
HARACTERISTICS
(C
ONTINUED
), (T
A
= 25
0
C, V
DD
= 5V + 5%,
UNLESS
OTHERWISE
SPECIFIED
)
L
INE
S
IDE
P
ARAMETERS
E3 A
PPLICATION
S
YMBOL
P
ARAMETER
M
IN
.
T
YP
.
M
AX
U
NITS
T
RANSMIT
C
HARACTERISTICS
(
SEE
IGURE
2)
Transmit Output Pulse Amplitude
(Measured at Secondary Output of Transformer, see Figure 1)
0.9
1.0
1.1
Vpk
Transmit Output Pulse Amplitude Ratio
0.95
1.00
1.05
Transmit Output Pulse Width
12.5
14.55
16.5
ns
Transmit Output Pulse Width Ratio
0.95
1.00
1.05
Transmit Output Jitter with jitter-free input @ TxClk(n)
0.02
0.05
UIpp
Receive Line Characteristics (See igure 3)
Receive Sensitivity (Length of cable)
1100
feet
Interference Margin
-20
-17
dB
Signal Level to Declare Loss of Signal
-35
dB
Signal Level to Clear Loss of Signal
-15
dB
Occurrence of LOS to LOS Declaration Time
10
100
255
UI
Termination of LOS to LOS Clearance Time
10
100
255
UI
Intrinsic Jitter (all “1’s” Pattern)
(1)
0.01
UI
Intrinsic Jitter (“100” Pattern)
0.03
UI
Jitter Tolerance @ Jitter Frequency = 100Hz
64
UI
Jitter Tolerance @ Jitter Frequency = 1kHz
30
UI
Jitter Tolerance @ Jitter Frequency = 10kHz
4
UI
Jitter Tolerance @ Jitter Frequency = 800kHz
0.15
UI
E
LECTRICAL
C
HARACTERISTICS
(C
ONTINUED
), (T
A
= 25
0
C, V
DD
= 5V + 5%,
UNLESS
OTHERWISE
SPECIFIED
)
L
INE
S
IDE
P
ARAMETERS
S
ONET
STS-1 A
PPLICATION
T
RANSMIT
C
HARACTERISTICS
(S
EE
F
IGURE
2)
S
YMBOL
P
ARAMETER
M
IN
.
T
YP
.
M
AX
U
NITS
Transmit Output Pulse Amplitude
(Measured with TxLEV=0, see Figure 1)
0.68
0.75
0.85
Vpk
Transmit Output Pulse Amplitude
(Measured with TxLEV=1, see Figure 1)
0.93
0.98
1.08
Vpk
Transmit Output Pulse Width
8.6
9.65
10.6
ns
Transmit Output Pulse Amplitude Ratio
0.9
1.0
1.1
Transmit Output Jitter with jitter-free input @ TxClk(n)
0.02
0.05
UI
Receive Line Characteristics (See Figure 3)
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