參數(shù)資料
型號: IDT82P20516DBFG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 80/115頁
文件大?。?/td> 0K
描述: IC LIU T1/E1/J1 16CH SH 484BGA
標準包裝: 84
功能: 線路接口單元(LIU)
接口: E1,J1,T1
電路數(shù): 16
電源電壓: 1.8V, 3.3V
功率(瓦特): 2.89W
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 484-LFBGA
供應(yīng)商設(shè)備封裝: 484-CABGA(19x19)
包裝: 托盤
包括: AIS 警報檢測器和發(fā)生器,回送功能,PRBS 發(fā)生器 / 檢測器,遠程檢測器和發(fā)生器
IDT82P20516
16-CHANNEL SHORT HAUL E1 LINE INTERFACE UNIT
Programming Information
67
December 17, 2009
PULS - Transmit Pulse Configuration Register
SCAL - Amplitude Scaling Control Register
Address: 006H, 046H, 086H, 0C6H, 106H, 146H, 186H, 1C6H, (CH1~CH8)
206H, 246H, 286H, 2C6H, 306H, 346H, 386H, (CH9~CH15)
7C6H (CH0)
Type: Read / Write
Default Value: 02H
Bit
Name
Description
7 - 4
-
Reserved.
3 - 0
PULS[3:0]
These bits select one of the eight preset waveform templates for short haul application or enable user-programmable arbitrary
waveform.
Address: 007H, 047H, 087H, 0C7H, 107H, 147H, 187H, 1C7H, (CH1~CH8)
207H, 247H, 287H, 2C7H, 307H, 347H, 387H, (CH9~CH15)
7C7H (CH0)
Type: Read / Write
Default Value: 36H
Bit
Name
Description
7 - 6
-
Reserved.
5 - 0
SCAL[5:0]
These bits specify a scaling factor to be applied to the amplitude of the waveform to be transmitted.
In E1 mode, the standard value is ‘100001’ for the waveform amplitude. If necessary, increasing or decreasing by ‘1’ from the
standard value will result in 3% scaling up or down against the waveform amplitude. The scale range is from +100% to -100%.
Note:
Therefore, if E1 mode is used, ‘100001’ should be written to these bits to indicate the E1 standard value.
7
654321
0
----
PULS3
PULS2
PULS1
PULS0
PULS[3:0]
Operation
Mode
Transmit
Clock
Cable Impedance
Cable Range
Cable Loss
0000
E1
2.048 MHz
E1 75
-
0 ~ 12 dB
0001
E1
2.048 MHz
E1 120
-
0 ~ 12 dB
0010 (default)
DSX1
1.544 MHz
100
0 ~ 133 ft
0 ~ 0.6 dB
0011
DSX1
1.544 MHz
100
133 ~ 266 ft
0.6 ~ 1.2 dB
0100
DSX1
1.544 MHz
100
266 ~ 399 ft
1.2 ~ 1.8 dB
0101
DSX1
1.544 MHz
100
399 ~ 533 ft
1.8 ~ 2.4 dB
0110
DSX1
1.544 MHz
100
533 ~ 655 ft
2.4 ~ 3.0 dB
0111
J1
1.544 MHz
110
-
0 ~ 12 dB
1XXX
User-programmable arbitrary waveform
76543
21
0
-
SCAL5
SCAL4
SCAL3
SCAL2
SCAL1
SCAL0
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