78p2343jat Teridian Semiconductor Corporation, 78p2343jat Datasheet - Page 32
78p2343jat
Manufacturer Part Number
78p2343jat
Description
3-port E3/ds3/sts-1 With Jitter Attenuator
Manufacturer
Teridian Semiconductor Corporation
Datasheet
1.78P2343JAT.pdf
(37 pages)
- Current page: 32 of 37
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78P2343JAT
3-port E3/DS3/STS-1 LIU
with Jitter Attenuator
ELECTRICAL SPECIFICATIONS
Page 32 of 37
PARAMETER
Receiver Jitter transfer function
Receiver Jitter Bandwidth, Fc
Jitter transfer function roll-off
RECEIVER JITTER TRANSFER FUNCTION
The receiver clock recovery loop characteristics are such that the receiver has the following transfer function.
When the Jitter Attenuator (JAT) is enabled in the receive or transmit path, the receiver or transmitter will
exhibit a jitter transfer as shown in the graph and table below. Jitter Attenuator operation is guaranteed through
digital scan testing. The actual jitter transfer is guaranteed by logic design and is not tested during production
testing.
-10
-20
-30
-40
-50
10
0
10
2005 Teridian Semiconductor Corporation
DS3 JAT
CONDITION
Below Fc
At –3dB point
After Fc
E3 JAT
JABW= 0, E3 mode (default)
JABW= 1, E3 mode
JABW= 0, DS3 mode (default)
JABW= 1, DS3 mode
JABW= 0, STS1 mode
JABW= 1, STS1 mode (default)
JAEN= 0, JAT disabled
(continued)
27Hz
40Hz
100
Jitter Frequency
STS1 JAT
1k
1kHz
ETSI TBR 24 (E3)
10k
MIN
20
NOM
100k
JAT Disabled
40kHz
59.6kHz
MAX
188
245
283
0.1
13
17
20
55
1M
decade
dB per
Rev 2.2
UNIT
kHz
dB
Hz
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