參數(shù)資料
型號(hào): XRT75R12
廠商: Exar Corporation
英文描述: TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
中文描述: 第十二章通道E3/DS3/STS-1線路接口單元與抖動(dòng)衰減器
文件頁(yè)數(shù): 38/89頁(yè)
文件大?。?/td> 457K
代理商: XRT75R12
XRT75R12
REV. P1.0.2
PRELIMINARY
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
35
T
ABLE
8: DS3 T
RANSMITTER
L
INE
S
IDE
O
UTPUT
AND
R
ECEIVER
L
INE
S
IDE
I
NPUT
S
PECIFICATIONS
(GR-499)
N
OTE
:
The above values are at TA = 25
0
C and V
DD
= 3.3V ± 5%.
T
ABLE
7: DS3 P
ULSE
M
ASK
E
QUATIONS
T
IME
IN
U
NIT
I
NTERVALS
N
ORMALIZED
A
MPLITUDE
LOWER CURVE
-0.85
<
T
<
-0.36
- 0.03
-0.36
<
T
<
0.36
0.36
<
T
<
1.4
- 0.03
UPPER CURVE
-0.85
<
T
<
-0.68
0.03
-0.68
<
T
<
0.36
0.36
<
T
<
1.4
0.08 + 0.407 x e
-1.84[T-0.36]
P
ARAMETER
M
IN
T
YP
M
AX
U
NITS
T
RANSMITTER
LINE
SIDE
OUTPUT
CHARACTERISTICS
Transmit Output Pulse Amplitude
(measured with TxLEV = 0)
0.65
0.75
0.85
V
pk
Transmit Output Pulse Amplitude
(measured with TxLEV = 1)
0.90
1.00
1.10
V
pk
Transmit Output Pulse Width
10.10
11.18
12.28
ns
Transmit Output Pulse Amplitude Ratio
0.90
1.00
1.10
Transmit Intrinsic Jitter
0.02
0.05
UI
pp
R
ECEIVER
LINE
SIDE
INPUT
CHARACTERISTICS
Receiver Sensitivity (length of cable)
900
1100
feet
Jitter Tolerance @ 400 KHz (Cat II)
0.15
UI
pp
Signal Level to Declare Loss of Signal
Refer to Table 10
Signal Level to Clear Loss of Signal
Refer to Table 10
0.5 1
2
-- 1
0.18
--T
+
sin
+
·
0.03
0.5 1
2
-- 1
0.34
---T
+
sin
+
·
0.03
+
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