参数资料
型号: IDT82V2084PFG8
厂商: IDT, Integrated Device Technology Inc
文件页数: 49/75页
文件大小: 0K
描述: IC LINE INTERFC UNIT 4CH 128TQFP
标准包装: 1
类型: 线路接口装置(LIU)
规程: E1
电源电压: 3.13 V ~ 3.47 V
安装类型: 表面贴装
封装/外壳: 128-LQFP
供应商设备封装: 128-TQFP(14x20)
包装: 标准包装
其它名称: 800-1864-6
53
INDUSTRIAL
TEMPERATURE RANGES
QUAD CHANNEL T1/E1/J1 LONG HAUL/SHORT HAUL LINE INTERFACE UNIT
4.2.10 TRANSMIT AND RECEIVE TERMINATION REGISTER
Table-55 TERM: Transmit and Receive Termination Configuration Register
(R/W, Address = 1AH, 5AH,9AH,DAH)
Symbol
Bit
Default
Description
-
7-6
00
Reserved
T_TERM[2:0]
5-3
000
These bits select the internal termination for transmit line impedance matching.
= 000: internal 75
impedance matching
= 001: internal 120
impedance matching
= 010: internal 100
impedance matching
= 011: internal 110
impedance matching
=1xx: Selects external impedance matching resistors for E1 mode only. T1/J1 does not require external imped-
ance resistors (see Table-14).
R_TERM[2:0]
2-0
000
These bits select the internal termination for receive line impedance matching.
= 000: internal 75
impedance matching
= 001: internal 120
impedance matching
= 010: internal 100
impedance matching
= 011: internal 110
impedance matching
= 1xx: Selects external impedance matching resistors (see Table-15).
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