參數(shù)資料
型號： CDB8952
廠商： Cirrus Logic, Inc.
英文描述： CrystalLAN 100BASE-X and 10BASE-T Transceiver
中文描述： CrystalLAN個100Base - X和10Base - T的收發(fā)器
文件頁數(shù)： 72/82頁
文件大?。?/td> 1130K
代理商： CDB8952
CS8952
72
CrystalLAN
100BASE-X and 10BASE-T Transceiver
When the TCM pin is high on power-up or reset, the CLK25 pin may be used as a source for the
TX_CLK pin. When the TCM pin is floating on power-up or reset, TX_CLK must be supplied externally.
TX_CLK should have the following nominal frequency:
TX_EN - Transmit Enable. Input, Pin 43.
Asserted high to indicate valid data nibbles are present on TXD[3:0]. When BPALIGN is selected,
TX_EN must be pulled up to VDD_MII.
TX_ER/TXD4 - Transmit Error Encoding/Transmit Data 4. Input, Pin 38.
When high, TX_ER indicates to the CS8952 that a transmit error has occurred. If TX_ER is asserted
simultaneously with TX_EN in 100 Mb/s mode, the CS8952 will ignore the data on the TXD[3:0] pins
and transmit one or more 100 Mb/s HALT symbols in its place. In 10 Mb/s mode, TX_ER has no effect
on the transmitted data.
If BP4B5B or BPALIGN are set, TX_ER/TXD4 is used to transmit the most-significant bit of the five-bit
code group.
TXD[3:0] - Transmit Data. Input, Pins 47, 46, 45, and 44.
Transmit data input pins. For MII modes, nibble-wide data (synchronous to TX_CLK) must be presented
on pins TXD[3:0] when TX_EN is asserted high. TXD0 is the least significant bit. In 10 Mb/s serial
mode, pin TXD0 is used as the serial input pin, and TXD[3:1] are ignored.
When either BP4B5B or BPALIGN is selected, pin TXD4 contains the most significant bit of the five-bit
code-group.
Control and Status Pins
10BT_SER - 10 Mb/s Serial Mode Select. Input, Pin 23.
When asserted high during power-up or reset and 10 Mb/s operation is selected, serial data will be
transferred on pins RXD0 and TXD0. When low during power-up or reset and 10 Mb/s operation is
selected, data is transferred a nibble at a time on RXD[3:0] and TXD[3:0]. This pin is ignored during
100 Mb/s operation.
10 Mb/s serial mode may also be entered under software control through bit 9 of the 10BASE-T Status
Register (address 1Bh).
At power-up or at reset, the value on this pin is latched into bit 9 of the 10BASE-T Status Register
(address 1Bh). This pin includes a weak internal pull-down (> 20 K
), or the value may be set by an
external 4.7 K
pull-up or pull-down resistor.
AN[1:0] - Auto-Negotiate Control. Input, Pins 58 and 57.
These three-level input pins are sampled during power-up or reset. They control the forced or
advertised auto-negotiation operating modes. If one of these pins is left unconnected, internal logic pulls
its signal to a mid-range value, 'M'.
Speed
100 Mb/s
10 Mb/s
10 Mb/s
10BT_SER pin
n/a
low (parallel)
high (serial)
Nominal frequency
25 MHz
2.5 MHz
10 MHz
AN1 pin
0
AN0 pin
M
Speed
10 Mb/s
Forced/Auto
Forced
Full/Half Duplex
Half
相關(guān)PDF資料
PDF描述
CDBH38D18 POWER INDUCTORS
CDBM128 POWER INDUCTORS
CDBM73MN POWER INDUCTORS
CDBM7D28 POWER INDUCTORS
CDC112 1-Line To 9-Line Differential LVPECL Clock Driver(1線-9線差分 LVPECL時鐘驅(qū)動器)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
CDB8952T 功能描述:以太網(wǎng)開發(fā)工具 Eval Bd 100BASE-TX/ 10BASE-T Transceiver RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
CDB-9PF 制造商:HRS 制造商全稱:HRS 功能描述:CD CRIMP TYPE CONNECTOR
CDB-9SF 制造商:HRS 制造商全稱:HRS 功能描述:CD CRIMP TYPE CONNECTOR
CDBA1100 制造商:COMCHIP 制造商全稱:Comchip Technology 功能描述:SMD Schottky Barrier Rectifier
CDBA1100-G 功能描述:肖特基二極管與整流器 SCHOTTKY DIODE 1A, 100V RoHS:否 制造商:Skyworks Solutions, Inc. 產(chǎn)品:Schottky Diodes 峰值反向電壓:2 V 正向連續(xù)電流:50 mA 最大浪涌電流: 配置:Crossover Quad 恢復時間: 正向電壓下降:370 mV 最大反向漏泄電流: 最大功率耗散:75 mW 工作溫度范圍:- 65 C to + 150 C 安裝風格:SMD/SMT 封裝 / 箱體:SOT-143 封裝:Reel
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*