收藏本站
参数资料
型号： DS21Q59L
厂商： Maxim Integrated Products
文件页数： 22/76页
文件大小： 0K
描述： IC TXRX E1 QUAD 3.3V 100-LQFP
产品培训模块： Lead (SnPb) Finish for COTS
产品变化通告： Product Discontinuation 20/Feb/2012
标准包装： 90
功能： 收发器
接口： E1
电路数： 4
电源电压： 3.14 V ~ 3.47 V
电流 - 电源： 230mA
工作温度： 0°C ~ 70°C
安装类型： 表面贴装
封装/外壳： 100-LQFP
供应商设备封装： 100-LQFP（14x14）
包装： 托盘
包括： AIS 警报检测器和发生器，回送功能，PRBS 发生器 / 检测器，远程检测器和发生器
DS21Q59 Quad E1 Transceiver
29 of 76
Register Name:
SSR
Register Description:
Synchronizer Status Register
Register Address:
09 Hex
Bit #
7
6
5
4
3
2
1
0
Name
CSC5
CSC4
CSC3
CSC2
CSC0
FASSA
CASSA
CRC4SA
NAME
BIT
FUNCTION
CSC5
7
CRC4 Sync Counter Bit 5. MSB of the 6-bit counter.
CSC4
6
CRC4 Sync Counter Bit 4
CSC3
5
CRC4 Sync Counter Bit 3
CSC2
4
CRC4 Sync Counter Bit 2
CSC0
3
CRC4 Sync Counter Bit 0. LSB of the 6-bit counter. Counter bit 1 is not
accessible.
FASSA
2
FAS Sync Active. Set while the synchronizer is searching for alignment at the
FAS level.
CASSA
1
CAS MF Sync Active. Set while the synchronizer is searching for the CAS MF
alignment word.
CRC4SA
0
CRC4 MF Sync Active. Set while the synchronizer is searching for the CRC4
MF alignment word.
9.2 CRC4 Sync Counter
The CRC4 sync counter increments each time the 8ms CRC4 multiframe search times out. The counter is cleared
when the framer has successfully obtained synchronization at the CRC4 level. The counter can also be cleared by
disabling the CRC4 mode (CCR1.0 = 0). This counter is useful for determining the amount of time the framer has
been searching for synchronization at the CRC4 level. ITU G.706 suggests that if synchronization at the CRC4
level cannot be obtained within 400ms, the search should be abandoned and proper action taken. The CRC4 sync
counter rolls over.
Table 9-A. Alarm Criteria
ALARM
SET CRITERIA
CLEAR CRITERIA
ITU SPEC
RSA1
(Receive Signaling
All Ones)
Over 16 consecutive frames (one full
MF) time slot 16 contains less than three
zeros
Over 16 consecutive frames (one full
MF) time slot 16 contains three or more
zeros
G.732
4.2
RSA0
(Receive Signaling
All Zeros)
Over 16 consecutive frames (one full
MF) time slot 16 contains all zeros
Over 16 consecutive frames (one full
MF) time slot 16 contains at least a
single one
G.732
5.2
RDMA
(Receive Distant
Multiframe Alarm)
Bit 6 in time slot 16 of frame 0 set to one
for two consecutive MF
Bit 6 in time slot 16 of frame 0 set to
zero for two consecutive MF
O.162
2.1.5
RUA1
(Receive Unframed
All Ones)
Fewer than three zeros in two frames
(512 bits)
More than two zeros in two frames (512
bits)
O.162
1.6.1.2
RRA
(Receive Remote
Alarm)
Bit 3 of nonalign frame set to one for
three consecutive occasions
Bit 3 of nonalign frame set to zero for
three consecutive occasions
O.162
2.1.4
RCL
(Receive Carrier
Loss)
255 (or 2048) consecutive zeros
received
In 255-bit times at least 32 ones are
received
G.775/
G.962
相关PDF资料
PDF描述
VI-B5Z-IX-F2 CONVERTER MOD DC/DC 2V 30W
VI-B5Y-IY-F3 CONVERTER MOD DC/DC 3.3V 33W
VI-B5Y-IX-F1 CONVERTER MOD DC/DC 3.3V 49.5W
VI-B5Y-IW-F4 CONVERTER MOD DC/DC 3.3V 66W
DS2187S/T&R IC RECEIVE LINE INTERFACE 20SOIC
相关代理商/技术参数
参数描述
DS21Q59L+ 功能描述:网络控制器与处理器 IC Quad E1 Transceiver 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
DS21Q59LN 功能描述:网络控制器与处理器 IC Quad E1 Transceiver 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
DS21Q59LN+ 功能描述:网络控制器与处理器 IC Quad E1 Transceiver 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
DS21S07A 制造商:Maxim Integrated Products 功能描述:
DS21S07AE 功能描述:SCSI 接口集成电路 RoHS:否 制造商:Texas Instruments 工作电源电压:2.7 V to 5.25 V 电源电流:13 mA 最大工作温度:+ 70 C 最小工作温度:0 C 安装风格:SMD/SMT 封装 / 箱体:SSOP-36 封装:Tube
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*