m28333-3x Mindspeed Technologies, m28333-3x Datasheet - Page 37

• Manufacturer Part Number: m28333-3x
• Description: Single/dual/triple E3/ds3/sts-1 Line Interface Unit
• Manufacturer: Mindspeed Technologies

M28331/M28332/M28333 (–3x)
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
Figure 2-8. Minimum Jitter Tolerance Requirement
28333-DSH-003-A
1.0 UI
0.1 UI
10 UI
T3 [GR-499 (1995)]
T3 [GR-499 (1995)]
Category II
Category I
10 Hz
E3 [GR.823 (1993)]
2.4 Jitter Tolerance
The M2833i receiver is able to tolerate a specified amount of high-frequency
jitter in the received signal while providing error-free operation (generally
defined as a bit error rate of less than 10
Figure
NOTE:
• E3 rate—ITU-T G.823 and ETSI TBR24 contain frequency masks for input
• DS3 rate—Bellcore GR499 specifies jitter tolerance frequency masks for
• STS-1 rate—Bellcore GR253 specifies jitter tolerance. It is noted that the
10
5
jitter tolerance.
To meet jitter transfer requirements for loop-timed operation, an external
jitter attenuator is required. The jitter attenuator lessens jitter from the
receive clock.
Category I and Category II interfaces.
STS-1 jitter tolerance differs from DS3 requirements only for Category II
interfaces.
2-9) for jitter tolerance are discussed in the following documents:
100 Hz
Mindspeed Technologies
1.5
Receiver Jitter Tolerance
Jitter Frequency (Hz)
1 kHz
2.3K
10 kHz
™
–9
). The specifications (illustrated in
22.3K
Jitter Tolerance
CX28333
60K
100 kHz
2.0 Functional Description
0.3
0.15
0.1
300K
2.4 Jitter Tolerance
800K
1 MHz
100604_014
2-13