参数资料
型号: XRT83SL30IV-F
厂商: Exar Corporation
文件页数: 7/76页
文件大小: 0K
描述: IC LIU T1/E1/J1 SGL 64TQFP
标准包装: 160
类型: 线路接口装置(LIU)
驱动器/接收器数: 1/1
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: 64-LQFP
供应商设备封装: 64-TQFP(10x10)
包装: 托盘
XRT83SL30
12
REV. 1.0.1
SINGLE-CHANNEL T1/E1/J1 SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
TERSEL1
TERSEL0
43
42
I
Termination Impedance Select pin 1
Termination Impedance Select pin 0
In the Hardware Mode and in the Internal Termination mode (TXTSEL=”1” and/or RXT-
SEL=”1”) TERSEL[1:0] control the transmit and receive termination impedance accord-
ing to the following table:
In the Internal Termination mode, the receive termination is realized completely by inter-
nal resistors or the combination of internal and one fixed external resistor (see descrip-
tion for RXRES[1:0] pins). In the internal termination mode the transformer ratio of 1:2
and 1:1 is required for the transmitter and receiver respectively with the transmitter out-
put AC coupled to the transformer.
NOTE: This pin is internally pulled "Low" with a 50k
resistor.
RXRES1
RXRES0
51
52
I
Receive External Resistor Control pin 1
Receive External Resistor Control pin 0
In Hardware Mode, RXRES[1:0] pins selects the required value of the external fixed
resistor for the receiver according to the following table. This mode is only available in
the internal impedance mode by pulling RXTSEL “High”.
NOTE: Internally pulled “Low” with 50k
resistor.
TERMINATIONS
SIGNAL NAME
PIN #TYPE
DESCRIPTION
TERSEL1
0
1
75
0
1
0
Termination
TERSEL0
0
1
100
120
110
RXRES1
0
RX Fixed Resistor
No External Fixed Resistor
RXRES0
0
1
210
150
0
1
240
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