参数资料
型号: IDT82P20416DBFG
厂商: IDT, Integrated Device Technology Inc
文件页数: 29/121页
文件大小: 0K
描述: IC LIU T1/E1/J1 16CH SH 484BGA
标准包装: 84
功能: 线路接口单元(LIU)
接口: E1,J1,T1
电路数: 16
电源电压: 1.8V, 3.3V
功率(瓦特): 3.10W
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 484-LFBGA
供应商设备封装: 484-CABGA(19x19)
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
IDT82P20416
16-CHANNEL SHORT HAUL T1/E1/J1 LINE INTERFACE UNIT
Pin Description
15
December 17, 2009
Clock
MCLK
Input
AB18
MCLK: Master Clock Input
MCLK provides a stable reference timing for the IDT82P20416. MCLK should be a clock with
+/-32 ppm (in T1/J1 mode) or +/-50 ppm (in E1 mode) accuracy. The clock frequency of MCLK
is informed to the device by MCKSEL[3:0].
If MCLK misses (duty cycle is less than 30% for 10 s) and then recovers, the device will be
reset automatically.
MCKSEL[0]
MCKSEL[1]
MCKSEL[2]
MCKSEL[3]
Input
AB17
W16
AA15
V15
MCKSEL[3:0]: Master Clock Selection
These four pins inform the device of the clock frequency input on MCLK:
CLKT1
Output
W15
CLKT1: 8 KHz / T1 Clock Output
The output on CLKT1 can be enabled or disabled, as determined by the CLKT1_EN bit (b1,
When the output is enabled, CLKT1 outputs an 8 KHz or 1.544 MHz clock, as selected by the
CLKT1 bit (b0, CLKG). The output is locked to MCLK.
When the output is disabled, CLKT1 is in High-Z state.
CLKE1
Output
AB16
CLKE1: 8 KHz / E1 Clock Output
The output on CLKE1 can be enabled or disabled, as determined by the CLKE1_EN bit (b3,
When the output is enabled, CLKE1 outputs an 8 KHz or 2.048 MHz clock, as selected by the
CLKE1 bit (b2, CLKG). The output is locked to MCLK.
When the output is disabled, CLKE1 is in High-Z state.
Name
I / O
Pin No.
Description
MCKSEL[3:0]*
Frequency (MHz)
0000
1.544
0001
1.544 X 2
0010
1.544 X 3
0011
1.544 X 4
0100
1.544 X 5
0101
1.544 X 6
0110
1.544 X 7
0111
1.544 X 8
1000
2.048
1001
2.048 X 2
1010
2.048 X 3
1011
2.048 X 4
1100
2.048 X 5
1101
2.048 X 6
1110
2.048 X 7
1111
2.048 X 8
Note:
0: GNDD
1: VDDIO
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