參數(shù)資料
型號: XRT81L27
廠商: Exar Corporation
英文描述: Seven Channel E1 Line Interface Unit with Clock Recovery(7通道 E1線接口單元(帶時(shí)鐘恢復(fù)))
中文描述: 七通道E1線路接口單元的時(shí)鐘恢復(fù)(7通道素E1線接口單元(帶時(shí)鐘恢復(fù)))
文件頁數(shù): 13/28頁
文件大?。?/td> 140K
代理商: XRT81L27
XRT81L27
SEVEN CHANNEL E1 LINE INTERFACE UNIT WITH CLOCK RECOVERY
PRELIMINARY
REV. P1.0.1
13
T
ABLE
1: R
ECEIVER
E
LECTRICAL
C
HARACTERISTICS
(Ta= -40°C to +85°C, Vdd=3.3V + 5% unless otherwise Specified)
P
ARAMETER
M
IN
T
YP
M
AX
U
NIT
T
EST
C
ONDITIONS
Receiver loss of signal:
Number of consecutive zeros
before
LOS
is set
Number of consecutive Zeros
before
EXLOS
is set
Input signal level at
LOS
LOS
Delay
Hysteresis
----
----
12
10
----
32
4096
16
-------
2
----
----
----
255
2
bit
bit
dB
bit
dB
Cable attenuation @1024KHz
ITU-G.775, ETSI 300 233
Receiver Sensitivity
11
13
----
dB
With nominal pulse amplitude of
3.0V for 120
and 2.37V for
75
application.
Interference Margin
-18
-14
----
dB
With 6dB cable loss.
Input Impedance
10
----
----
K
Between RTIP or RRing to
ground
Jitter Tolerance:
20 Hz
700Hz
10KHz 100KHz
10
5
0.3
----
----
UIpp
ITU G.823
Recovered Clock Jitter Transfer
Corner Frequency
Peaking Amplitude
----
36
----
0.5
KHz
dB
ITU G.736
Return Loss:
51KHz -- 102KHz
102KHz -- 2048KHz
2048KHz -- 3072KHz
14
20
16
----
----
----
----
----
----
dB
dB
dB
ITU-G.703
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