參數(shù)資料
型號(hào): DS2181AQ+T&R
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 16/32頁(yè)
文件大?。?/td> 0K
描述: IC TXRX CEPT PRIMARY RATE 44PLCC
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 500
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: CEPT
電源電壓: 4.5 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 44-LCC(J 形引線)
供應(yīng)商設(shè)備封裝: 44-PLCC(16.59x16.59)
包裝: 帶卷 (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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