参数资料
型号: DS21Q48
厂商: Maxim Integrated Products
文件页数: 5/73页
文件大小: 0K
描述: IC LIU E1/T1/J1 QUAD 5V 144-BGA
标准包装: 90
类型: 线路接口装置(LIU)
规程: E1
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 144-BBGA
供应商设备封装: 144-PBGA(17x17)
包装: 管件
DS2148/DS21Q48
13 of 73
NAME
PIN
I/O
FUNCTION
RNEG
39
O
Receive Negative Data. Updated on the rising edge (CCR2.0 = 0) or the
falling edge (CCR2.0 = 1) of RCLK with the bipolar data out of the line
interface. Set NRZE (CCR1.6) to a one for NRZ applications. In NRZ
mode, data will be output on RPOS while a received error will cause a
positive-going pulse synchronous with RCLK at RNEG. See Section 6.4
for details.
RPOS
38
O
Receive Positive Data. Updated on the rising edge (CCR2.0 = 0) or the
falling edge (CCR2.0 = 1) of RCLK with bipolar data out of the line
interface. Set NRZE (CCR1.6) to a one for NRZ applications. In NRZ
mode, data will be output on RPOS while a received error will cause a
positive-going pulse synchronous with RCLK at RNEG. See Section 6.2
for details.
RTIP/RRING
27/28
I
Receive Tip and Ring. Analog inputs for clock recovery circuitry. These
pins connect via a 1:1 transformer to the line. See Section 5 for details.
TCLK
43
I
Transmit Clock. A 2.048MHz or 1.544MHz primary clock. Used to clock
data through the transmit side formatter. Can be sourced internally by
MCLK or RCLK. See Common Control Register 1 and Figure 1-3.
TEST
26
I
Tri-state Control. Set high to tri-state all outputs and I/O pins (including
the parallel control port). Set low for normal operation. Useful in board
level testing.
TNEG
42
I
Transmit Negative Data. Sampled on the falling edge (CCR2.1 = 0) or
the rising edge (CCR2.1 = 1) of TCLK for data to be transmitted out onto
the line.
TPOS
41
I
Transmit Positive Data. Sampled on the falling edge (CCR2.1 = 0) or the
rising edge (CCR2.1 = 1) of TCLK for data to be transmitted out onto the
line.
TTIP/TRING
34/37
O
Transmit Tip and Ring. Analog line driver outputs. These pins connect
via a step-up transformer to the line. See Section 5 for details.
VDD
21/36
-
5.0V ±5% Positive Supply
VSM
20
I
Voltage Supply Mode. Should be tied high for 5V operation
VSS
22/35
-
Signal Ground
WR
(R/
W)
3
I
Active-Low Write Input (Read/Write). See the bus timing diagrams in
Section 10.
相关PDF资料
PDF描述
VE-B6X-MY-S CONVERTER MOD DC/DC 5.2V 50W
VI-26B-CU-B1 CONVERTER MOD DC/DC 95V 200W
VI-B4V-MY-S CONVERTER MOD DC/DC 5.8V 50W
VI-261-CU-B1 CONVERTER MOD DC/DC 12V 200W
M83723/86R8037 CONN PLUG 3POS STRAIGHT W/SCKT
相关代理商/技术参数
参数描述
DS21Q48A3N 功能描述:网络控制器与处理器 IC 5V Quad E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q48B 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q48C 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q48N 功能描述:网络控制器与处理器 IC 5V Quad E1/T1/J1 Line Interface RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray
DS21Q48NB 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流(最大值):595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray