参数资料
型号: XRT83L34IV-F
厂商: Exar Corporation
文件页数: 68/99页
文件大小: 0K
描述: IC LIU T1/E1/J1 QUAD 128TQFP
标准包装: 72
类型: 线路接口装置(LIU)
驱动器/接收器数: 4/4
规程: T1,E1,J1
电源电压: 3.135 V ~ 3.465 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: 托盘
其它名称: XRT83L34IV-F-ND
XRT83L34
xr
REV. 1.0.1
QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
67
D3
TXON_n
Transmitter ON: Writing a “1” into this bit location turns on the
Transmit Section of channel n. Writing a “0” shuts off the
Transmit Section of channel n. In this mode, TTIP_n and
TRING_n driver outputs will be tri-stated for power reduction or
redundancy applications.
NOTE: This bit provides independent turn-off or turn-on control
for each transmitter channel.
R/W
0
D2
LOOP2_n
Loop-Back control bit 2: This bit together with the LOOP1
and LOOP0 bits control the Loop-Back modes of the chip
according to the following table:
D1
LOOP1_n
Loop-Back control bit 1: See description of bit D2 for the
function of this bit.
R/W
0
D0
LOOP0_n
Loop-Back control bit 0: See description of bit D2 for the
function of this bit.
R/W
0
TABLE 22: MICROPROCESSOR REGISTER #2, BIT DESCRIPTION
LOOP2
0
1
LOOP1
X
0
1
LOOP0
X
0
1
0
1
Loop-Back Mode
No Loop-Back
Dual Loop-Back
Analog Loop-Back
Remote Loop-Back
Digital Loop-Back
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