參數(shù)資料
型號(hào)： DS21FF42N
廠商： DALLAS SEMICONDUCTOR
元件分類： Digital Transmission Controller
英文描述： DATACOM, FRAMER, PBGA300
封裝： 27 X 27 MM, BGA-300
文件頁數(shù)： 30/115頁
文件大小： 534K
代理商： DS21FF42N
DS21FF42/DS21FT42
21 of 115
Signal Name:
TLINK
Signal Description:
Transmit Link Data
Signal Type:
Input
If enabled via TCR1.2, this pin will be sampled on the falling edge of TCLK for data insertion into either
the FDL stream (ESF) or the Fs–bit position (D4) or the Z–bit position (ZBTSI). See Section 19 for
details. This signal is not bonded out in the DS21FF42/DS21FT42.
Signal Name:
TSYNC
Signal Description:
Transmit Sync
Signal Type:
Input /Output
A pulse at this pin will establish either frame or multiframe boundaries for the transmit side.
Via
TCR2.2, the DS21Q42 can be programmed to output either a frame or multiframe pulse at this pin. If
this pin is set to output pulses at frame boundaries, it can also be set via TCR2.4 to output double–wide
pulses at signaling frames. See Section 24 for details.
Signal Name:
TSSYNC
Signal Description:
Transmit System Sync
Signal Type:
Input
Only used when the transmit side elastic store is enabled. A pulse at this pin will establish either frame
or multiframe boundaries for the transmit side. Should be tied low in applications that do not use the
transmit side elastic store.
Signal Name:
TSIG
Signal Description:
Transmit Signaling Input
Signal Type:
Input
When enabled, this input will sample signaling bits for insertion into outgoing PCM T1 data stream.
Sampled on the falling edge of TCLK when the transmit side elastic store is disabled. Sampled on the
falling edge of TSYSCLK when the transmit side elastic store is enabled. This function is available when
FMS = 0. FMS is tied to ground for the DS21FF42/DS21FT42.
Signal Name:
TPOS
Signal Description:
Transmit Positive Data Output
Signal Type:
Output
Updated on the rising edge of TCLK with the bipolar data out of the transmit side formatter. Can be
programmed to source NRZ data via the Output Data Format (CCR1.6) control bit.
Signal Name:
TNEG
Signal Description:
Transmit Negative Data Output
Signal Type:
Output
Updated on the rising edge of TCLK with the bipolar data out of the transmit side formatter.
RECEIVE SIDE PINS
Signal Name:
RLINK
Signal Description:
Receive Link Data
Signal Type:
Output
Updated with either FDL data (ESF) or Fs bits (D4) or Z bits (ZBTSI) one RCLK before the start of a
frame. See Section 24 for details. This signal is not bonded out in the DS21FF42/DS21FT42.
相關(guān)PDF資料
PDF描述
DS21FT44N DATACOM, FRAMER, PBGA300
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DS21Q41BT DATACOM, FRAMER, PQFP128
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS21FF42N+ 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl T1/T1 Framer 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FF44 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 4x4 16/4x3 12 Chnl E1/E1 Framer 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FF44N 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 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(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
DS21FT40 制造商:DALLAS 制造商全稱:Dallas Semiconductor 功能描述:Four x Three 12 Channel E1 Framer
DS21FT40N 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
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