2006 Teridian Semiconductor Corporation Rev. 2." />
參數(shù)資料
型號(hào)： 78P2352-IGTR/F
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 41/42頁(yè)
文件大?。?/td> 0K
描述： IC LIU SDH SONET 2CH 128-LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 1,000
類型： 線路接口裝置（LIU）
驅(qū)動(dòng)器/接收器數(shù)： 2/2
規(guī)程： E4，OC-3，STM1-E
電源電壓： 3.15 V ~ 3.45 V
安裝類型： 表面貼裝
封裝/外殼： 128-LQFP 裸露焊盤
供應(yīng)商設(shè)備封裝： 128-LQFP-EP（14x14）
包裝： 帶卷 (TR)
78P2352
Dual Channel
OC-3/ STM1-E/ E4 LIU
Page: 8 of 42
2006 Teridian Semiconductor Corporation
Rev. 2.4
In SW mode only, a Full Remote (digital) Loopback
bit FLBK is also available in the Advanced Tx
Control register. This loopback exercises the entire
Rx and Tx paths of the 78P2352 including the Tx
clock recovery unit. As such, the user must enable
either Serial Plesiochronous or Serial Loop-timing
transmit modes to utilize the Full Remote (digital)
Loopback.
Rx CDR
CMI
Decoder
RXxP/N
SOxDP/N
SOxCKP/N
POx[3:0]D
POxCK
PTOxCK
PIx[3:0]D
PIxCK
SIxCKP/N
SIxDP/N
FIFO
Tx CDR
Lock Detect
EACH CHANNEL: Rx
CMI
Encoder
ECLxP/N
CMIxP/N
TXxCKP/N
Lock Detect
EACH CHANNEL: Tx
Adaptive
Eq.
LOS Detect
PMOD, SMOD[1:0], PAR
LLBK
RLBK
CMI
Figure 8: Remote (Digital) Loopback
INTERNAL POWER-ON RESET
Power-On Reset (POR) function is provided on chip.
Roughly 50
s after Vcc reaches 2.4V at power up, a
reset pulse is internally generated. This resets all
registers to their default values as well as all state
machines within the transceiver to known initial
values. The reset signal is also brought out to the
PORB pin.
The PORB pin is a special function
analog pin that allows for the following:
Override the internal POR signal by driving in
an external active low reset signal;
Use the internally generated POR signal to
trigger other resets;
Add external capacitor to slow down the
release of power-on reset (approximately 8
s
per nF added).
NOTE: Do not pull-up the PORB pin to Vcc or drive
this pin high during power-up. This will prevent the
internal reset generator from resetting the entire chip
and may result in errors.
SERIAL CONTROL INTERFACE
The serial port controlled registers allows a generic
controller to interface with the 78P2352. It is used
for mode settings, diagnostics and test, retrieval of
status and performance information, and for on-chip
fuse trimming during production test. The SPSL pin
must be high in order to use the serial port.
The serial interface consists of four pins: Serial Port
Enable (SEN_CMI), Serial Clock (SCK_MON), Serial
Data In (SDI_PAR), and Serial Data Out (SDO_E4).
The SEN_CMI pin initiates the read and write
operations.
It can also be used to select a
particular device allowing SCK_MON, SDI_PAR
and SDO_E4 to be bussed together.
SCK_MON is the clock input that times the data
on SDI_PAR and SDO_E4. Data on SDI_PAR
is latched in on the rising-edge of SCK_MON,
and data on SDO_E4 is clocked out using the
falling edge of SCK_MON.
SDI_PAR is used to insert mode, address, and
register data into the chip. Address and Data
information are input least significant bit (LSB)
first. The mode and address bit assignment and
register table are shown in the following section.
SDO_E4 is a tri-state capable output. It is used
to output register data during a read operation.
SDO_E4 output is normally high impedance,
and is enabled only during the duration when
register data is being clocked out. Read data is
clocked out least significant bit (LSB) first.
If SDI_PAR coming out of the micro-controller chip is
also tri-state capable, SDI_PAR and SDO_E4 can
be connected together to simplify connections. The
maximum clock frequency for register access is
20MHz.
PROGRAMMABLE INTERRUPTS
In addition to the receiver LOS and LOL status pins,
the 78P2352 provides a programmable interrupt for
each transmitter.
In HW control mode, the default events that trigger
the Tx interrupt is a transmit Loss of Lock (TXLOL)
or FIFO error (FERR).
相關(guān)PDF資料
PDF描述
VE-26V-IU-F3 CONVERTER MOD DC/DC 5.8V 200W
MC100EP16FDG IC RCVR/DRVR ECL DIFF 5V 8SOIC
DS26303L-75+A3 IC LIU E1/T1/J1 3.3V 144-ELQFP
MS27474E14B15P CONN RCPT 15POS JAM NUT W/PINS
D38999/26FH55PA CONN PLUG 55POS STRAIGHT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
78P236-IP 制造商:SSI 功能描述:
78P47404T15 制造商:n/a 功能描述:0.47MFD 400VDC caps
78P7200 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Line Interface Unit
78P7200IH 制造商:TDK CORPORATION OF AMERICA 功能描述:Line Interface 28-Pin PLCC
78P7200-IH 制造商:TDK 功能描述:Line Interface 28-Pin PLCC
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*