IDT82P2288BB IDT, Integrated Device Technology Inc, IDT82P2288BB Datasheet - Page 31

• Manufacturer Part Number: IDT82P2288BB
• Description: TXRX T1/J1/E1 8CHAN 256-PBGA
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Transceiverr

Specifications of IDT82P2288BB

• Protocol: IEEE 1149.1
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 256-PBGA
• Screening Level: Industrial
• Mounting: Surface Mount
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Drivers/receivers: -
• Lead Free Status / RoHS Status: Not Compliant, Contains lead / RoHS non-compliant
• Other names: 82P2288BB

3.7.3
density of the received signal. When the received signal is below an
amplitude for continuous intervals, the LOS is detected. When the
received signal is above the amplitude and the density of marks meets
the requirement, the LOS is cleared.
Table 9 and Table 10. In T1/J1 mode, the LOS detection supports ANSI
T1.231 and I.431. In E1 mode, the LOS detection supports ITU-T G.775
and I.431. The criteria are selected by the LAC bit.
Functional Description
IDT82P2288
The Loss of Signal (LOS) Detector monitors the amplitude and
The different criteria for LOS Declaring/Clearing are illustrated in
LOS DETECTION
31
OCTAL T1/E1/J1 LONG HAUL / SHORT HAUL TRANSCEIVER
Selected by the LOS_IES bit, a transition from '0' to '1' on the LOS_S bit
or any transition (from ‘0’ to ‘1’ or from ‘1’ to ‘0’) on the LOS_S bit will set
the LOS_IS bit to ‘1’. When the LOS_IS bit is ‘1’, an interrupt will be
reported by the INT pin if enabled by the LOS_IE bit.
the received data stream.
When the LOS is detected, it will be indicated by the LOS_S bit.
During LOS, if the RAISE bit is set to ‘1’, all ’One’s will be inserted to
March 04, 2009