参数资料
型号: DS21FF44
厂商: Maxim Integrated Products
文件页数: 112/117页
文件大小: 0K
描述: IC FRAMER E1 4X4 16CH 300-BGA
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 40
控制器类型: E1 调帧器
接口: 并行/串行
电源电压: 2.97 V ~ 3.63 V
电流 - 电源: 300mA
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 300-BBGA
供应商设备封装: 300-PBGA(27x27)
包装: 管件
DS21FT44/DS21FF44
94 of 117
Figure 22-3. RECEIVE SIDE 1.544MHz BOUNDARY TIMING (With Elastic
Store Enabled)
Figure 22-4. RECEIVE SIDE 2.048MHz BOUNDARY TIMING (With Elastic
Store Enabled)
RSER
LSB MSB
F
MSB
LSB
RCHCLK
RSYNC / RMSYNC
RCHBLK
RSYSCLK
RSYNC
1
2
3
CHANNEL 23/31
CHANNEL 24/32
CHANNEL 1/2
4
Notes:
1. Data from the E1 channels 1, 5, 9, 13, 17, 21, 25, and 29 is dropped (channel 2 from the E1 link is
mapped to channel 1 of the T1 link, etc.) and the F-bit position is added (forced to one)
2. RSYNC is in the output mode (RCR1.5 = 0)
3. RSYNC is in the input mode (RCR1.5 = 1)
4. RCHBLK is programmed to block channel 24
RSER
LSB MSB
LSB
CHANNEL 1
RCHCLK
RSYNC / RMSYNC
RCHBLK
RSYSCLK
RSYNC
CHANNEL 31
CHANNEL 32
1
2
3
MSB
Notes:
1. RSYNC is in the output mode (RCR1.5 = 0)
2. RSYNC is in the input mode (RCR1.5 = 1)
3. RCHBLK is programmed to block channel 1
4. RSIG normally contains the CAS multiframe alignment nibble (0000) in Channel 1
RSIG
D
CHANNEL 1
CHANNEL 31
CHANNEL 32
Note 4
A
B
C
D
AB
C
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