参数资料
| 型号： | XRT75R12IB |
| 厂商： | Exar Corporation |
| 文件页数： | 56/90页 |
| 文件大小： | 0K |
| 描述： | IC LIU E3/DS3/STS-1 12CH 420TBGA |
| 标准包装： | 40 |
| 类型： | 线路接口装置（LIU） |
| 驱动器/接收器数： | 12/12 |
| 规程： | DS3，E3，STS-1 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 420-LBGA 裸露焊盘 |
| 供应商设备封装： | 420-TBGA（35x35） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页当前第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页
XRT75R12
3
TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR
REV. 1.0.4
PIN DESCRIPTIONS (BY FUNCTION)
SYSTEM-SIDE TRANSMIT INPUT AND TRANSMIT CONTROL PINS
PIN #
SIGNAL NAME
TYPE
DESCRIPTION
P4
TxON
I
Transmit On/Off Input
Upon power up, the transmitters are powered on. Turning the transmitters
On or Off is selected through the microprocessor interface by programming
the appropriate channel register if this pin is pulled "High". If the TxON pin
is pulled "Low", all 12 transmitters are powered off.
NOTE: TxON is ideal for redundancy applications. See the R3 Technology
section of this datasheet for more details. Internally pulled "High".
F22
AA22
H22
Y23
G26
AA25
G1
AA2
H5
Y4
F5
AA5
TxCLK0
TxCLK1
TxCLK2
TxCLK3
TxCLK4
TxCLK5
TxCLK6
TxCLK7
TxCLK8
TxCLK9
TxCLK10
TxCLK11
I
Transmit Clock Input
These input pins have three functions:
They function as the timing source for the Transmit Section of the
corresponding channel within the XRT75R12.
They are used by the Transmit Section of the LIU IC to sample the
corresponding TxPOS_n and TxNEG_n input pins.
They are used to clock the PRBS generator
NOTE: The user is expected to supply a 44.736MHz ± 20ppm clock signal
(for DS3 applications), 34.368MHz ± 20 ppm clock signal (for E3
applications) or a 51.84MHz ± 4.6ppm clock signal (for STS-1,
Stratum 3E or better applications).
E23
AB24
J22
AA23
G25
AA26
G2
AA1
J5
AA4
E4
AB3
TxPOS0
TxPOS1
TxPOS2
TxPOS3
TxPOS4
TxPOS5
TxPOS6
TxPOS7
TxPOS8
TxPOS9
TxPOS10
TxPOS11
I
Transmit Positive Data Input
The function of these digitial input pins depends upon whether the corre-
sponding channel has been configured to operate in the Single-Rail or
Dual-Rail Mode.
Single Rail Mode - Transmit Data Input
Operating in the Single-Rail Mode; all transmit input data will be serially
applied to this input pin. This signal will be latched into the Transmit Sec-
tion circuitry on the active edge of the TxCLK_n signal.
The Transmit Section of the LIU IC will then encode this data into either the
B3ZS line code (for DS3 and STS-1 applications) or the HDB3 line code
(for E3 applications).
Dual Rail Mode - Transmit Positive Data Input
In the Dual-Rail Mode, the user should apply a pulse to this input pin when
a positive-polarity pulse is to be transmitted onto the line. This signal will
be latched into the Transmit Section circuitry upon the active edge of the
TxCLK_n signal,.
The Transmit Section of the LIU IC will NOT encode this data into either the
B3ZS or HDB3 line codes. If the user configures the LIU IC to operate in
the Dual-Rail Mode, B3ZS/HDB3 encoding must have already been done
prior to this input.
相关PDF资料 |
PDF描述 |
|---|---|
| ISL267450AIUZ-T | IC INTERFACE |
| MS3116P16-8P | CONN PLUG 8POS STRAIGHT W/PINS |
| IDT72V815L15PFI | IC FIFO SYNC 512X18 15NS 128QFP |
| MS27513E8F35SD | CONN RCPT 6POS BOX MNT W/SCKT |
| MS3101E16-12S | CONN RCPT 1POS FREE HNG W/SCKT |
相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT75R12IB-F | 功能描述:外围驱动器与原件 - PCI 12 Channel 3.3V-5V temp -45 to 85C RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| XRT75R12IB-L | 功能描述:LIN 收发器 Attenuator RoHS:否 制造商:NXP Semiconductors 工作电源电压: 电源电流: 最大工作温度: 封装 / 箱体:SO-8 |
| XRT75VL00 | 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75VL00_08 | 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER ATTENUATOR |
| XRT75VL00D | 制造商:EXAR 制造商全称:EXAR 功能描述:E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
发布紧急采购，3分钟左右您将得到回复。