XRT75R12IB-F Exar Corporation, XRT75R12IB-F Datasheet - Page 47

• Manufacturer Part Number: XRT75R12IB-F
• Description: Peripheral Drivers & Components (PCIs) 12 Channel 3.3V-5V temp -45 to 85C
• Manufacturer: Exar Corporation

Specifications of XRT75R12IB-F

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3.3 V
• Package / Case: TBGA-420
• Ic Interface Type: Parallel, Serial
• Supply Voltage Range: 3.135V To 3.465V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: BGA
• No. Of Pins: 420
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Data Rate Max: 51.84Mbps
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REV. 1.0.4
Transmit All Ones (TAOS) can be set by setting the TAOS_n control bits to “1” in the Channel control registers.
When the TAOS is set, the Transmit Section generates and transmits a continuous AMI all “1’s” pattern on
TTIP_n and TRing_n pins. The frequency of this ones pattern is determined by TxClk_n. the TAOS data path
is shown in
function in Digital loopback mode.
F
6.3
IGURE
TxPOS
TxNEG
RxCLK
RxPOS
RxNEG
TxCLK
33. T
TRANSMIT ALL ONES (TAOS)
Figure
RANSMIT
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
33. TAOS does not operate in Analog loopback or Remote loopback modes, however will
HDB3/B3ZS
DECODER
HDB3/B3ZS
A
ENCODER
LL
O
NES
(TAOS)
TAOS
44
RECOVERY
CONTROL
DATA &
CLOCK
TIMING
Tx
Rx
XRT75R12
Transmit All 1's
TTIP
RTIP
TRing
RRing