参数资料
型号: DS2181AQ/T&R
厂商: Maxim Integrated Products
文件页数: 16/32页
文件大小: 0K
描述: IC TXRX CEPT PRIMARY RATE 44PLCC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 500
类型: 收发器
驱动器/接收器数: 1/1
规程: CEPT
电源电压: 4.5 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 44-LCC(J 形引线)
供应商设备封装: 44-PLCC(16.59x16.59)
包装: 带卷 (TR)
DS2181A
23 of 32
RDMA
RDMA transitions high when bit 6 of timeslot 16 in frame 0 is set for three consecutive occasions and
returns low when the bit is clear for three consecutive occasions. The RDMA bit (RSR.6) is a latched
version of the RDMA output.
RCL
RCL transitions high after 32 consecutive 0s appear at RPOS and RNEG; it goes low at the next 1
occurrence.
RFER
The RFER output transitions high when received frame alignment, CAS multiframe alignment and/or
CRC4 code words are in error. The FECR and CECR log error events reported at this output. FECR logs
only the frame alignment word errors. CECR logs CRC4 code word errors.
To complement the on-chip error logging capabilities of the DS2181A, the system designer can use off-
chip logic gated by receive side outputs RCHCLK, RAF, RSTS and RCSYNC to demux error states
present at RFER. See the separate DS2181A CEPT Transceiver Application Note for more details.
RFER OUTPUT TIMING FOR ALL ERROR CONDITIONS Figure 23
CAS MULTIFRAME ALIGNMENT ERROR Figure 24
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