- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄376976 > DS3171N Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers PDF資料下載
參數(shù)資料
| 型號： | DS3171N |
| 英文描述： | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| 中文描述： | 單/雙/三/四DS3/E3單芯片收發(fā)器 |
| 文件頁數(shù)： | 105/232頁 |
| 文件大?。?/td> | 2133K |
| 代理商： | DS3171N |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁當前第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁第164頁第165頁第166頁第167頁第168頁第169頁第170頁第171頁第172頁第173頁第174頁第175頁第176頁第177頁第178頁第179頁第180頁第181頁第182頁第183頁第184頁第185頁第186頁第187頁第188頁第189頁第190頁第191頁第192頁第193頁第194頁第195頁第196頁第197頁第198頁第199頁第200頁第201頁第202頁第203頁第204頁第205頁第206頁第207頁第208頁第209頁第210頁第211頁第212頁第213頁第214頁第215頁第216頁第217頁第218頁第219頁第220頁第221頁第222頁第223頁第224頁第225頁第226頁第227頁第228頁第229頁第230頁第231頁第232頁
DS3171/DS3172/DS3173/DS3174
105 of 231
generated by inserting an HDB3 signature into the bipolar data stream if both the POS and NEG signals are zero
for four consecutive clock periods. Zero suppression encoding can be disabled which will result in AMI-coded data.
Error insertion is also performed. Error insertion inserts bipolar violation (BPV) or excessive zero (EXZ) errors onto
the bipolar signal. A BPV error will be inserted when three consecutive ones occur. An EXZ error will be inserted
when three (or four) consecutive zeros on the bipolar signal occur by inhibiting the insertion of a B3ZS (HDB3)
signature. There will be at least one intervening pulse between consecutive BPV or EXZ errors. A single BPV or
EXZ error inserted will be detected as a single BPV/EXZ error at the far-end, and will not cause any other type of
error to be detected. For example, if a BPV error is inserted, the far-end should not also detect a data error.
10.10.4 Transmit Line Interface
The Transmit Line Interface accepts a bipolar data stream from the B3ZS/HDB3 Encoder, performs error insertion,
and transmits the bipolar data stream.
Error insertion inserts BPV or EXZ errors into the bipolar signal. When a BPV error is to be inserted, the Transmit
Line Interface waits for the next occurrence of three consecutive ones. The first bipolar one is generated according
to the normal AMI rules. The second bipolar one is generated by transmitting the same values on TPOS and TNEG
as the values for the first one. The third bipolar one is generated according to the normal AMI rules. When an EXZ
error is to be inserted, the Transmit Line Interface waits for the next occurrence of three (four) consecutive zeros on
the bipolar signal, and inhibits the insertion of a B3ZS (HDB3) signature. There must be at least one intervening
one between consecutive BPV or EXZ errors. A single BPV or EXZ error inserted must be detected as a single
BPV/EXZ error at the far-end, and not cause any other type of error to be detected. For example, if a BPV error is
inserted, the far-end should not also detect a data error. If a second error insertion request of a given type (BPV or
EXZ) is initiated before a previous request has been completed, the second request will be ignored.
The outgoing bipolar data stream consists of positive pulse data (TPOSn) and negative pulse data (TNEGn).
TPOSn and TNEGn are updated on the rising edge of TLCLKn.
10.10.5 Receive Line Interface
The Receive Line Interface receives a bipolar signal. The incoming bipolar data line consists of positive pulse data
(RPOSn), negative pulse data (RNEGn), and clock (RLCLKn) signals. RPOSn and RNEGn are sampled on the
rising edge of RLCLKn. The incoming bipolar signal is checked for a Loss Of Signal (LOS) condition, and passed
on to B3ZS/HDB3 Decoder. An LOS condition is declared if both RPOSn and RNEGn do not have any transitions
for 192 clock cycles. The LOS condition is terminated after 192 clock cycles without any EXZ errors. Note: When
zero suppression (B3ZS or HDB3) decoding is disabled, the LOS condition is cleared, and cannot be detected.
10.10.6 B3ZS/HDB3 Decoder
The B3ZS/HDB3 Decoder receives a bipolar signal from the LIU (or the RPOS/RNEG pins). The incoming bipolar
signal is checked for a Loss of Signal (LOS) condition. An LOS condition is declared if both the positive pulse data
and negative pulse data signals do not have any transitions for 192 clock cycles. The LOS condition is terminated
after 192 clock cycles without any EXZ errors.
B3ZS/HDB3 Decoder performs EXZ detection, zero suppression decoding, BPV detection, and bipolar to unipolar
conversion.
EXZ detection checks the bipolar data stream for excessive zeros (EXZ) errors. In B3ZS mode, an EXZ error is
declared whenever there is an occurrence of 3 or more zeros. In HDB3 mode, an EXZ error is declared whenever
there is an occurrence of 4 or more zeros. EXZ errors are accumulated in the EXZ counter (
LINE.REXZCR
register).
Zero suppression decoding converts B3ZS or HDB3 encoded bipolar data into an AMI bipolar signal. In B3ZS
mode, the encoded bipolar signal is checked for a B3ZS signature. If a B3ZS signature is found, it is replaced with
three zeros. In HDB3 mode, the encoded bipolar signal is checked for an HDB3 signature. If an HDB3 signature is
found, it is replaced with four zeros. The format of both an HDB3 signature and a B3ZS signature is programmable.
When
LINE.RCR
.REZSF = 0, the decoder will search for a zero followed by a BPV in B3ZS mode, and in HDB3
mode it will search for two zeros followed by a BPV. If
LINE.RCR
.REZSF = 1, the same criteria is applied with an
additional requirement that the BPV must be the opposite polarity of the previous BPV. See
Figure 10-26
and
Figure 10-27
. Zero suppression decoding is also programmable (on or off). Note: Immediately after a reset or a
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| DS3172 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3172N | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3173 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3173N | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
| DS3174 | Single/Dual/Triple/Quad DS3/E3 Single-Chip Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| DS3171N+ | 功能描述:網(wǎng)絡控制器與處理器 IC Single DS3/E3 Single Chip Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS3172 | 功能描述:網(wǎng)絡控制器與處理器 IC Dual DS3/E3 Single Chip Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS3172+ | 功能描述:網(wǎng)絡控制器與處理器 IC Dual DS3/E3 Single Chip Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS3172N | 功能描述:網(wǎng)絡控制器與處理器 IC Dual DS3/E3 Single Chip Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| DS3172N+ | 功能描述:網(wǎng)絡控制器與處理器 IC Dual DS3/E3 Single Chip Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
發(fā)布緊急采購，3分鐘左右您將得到回復。