參數(shù)資料
型號: XRT83L30IV-F
廠商: Exar Corporation
文件頁數(shù): 7/78頁
文件大?。?/td> 0K
描述: IC LIU LH/SH T1/E1 SGL 64TQFP
標(biāo)準(zhǔn)包裝: 160
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: T1,E1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-TQFP(10x10)
包裝: 托盤
其它名稱: 1016-1633
XRT83L30IV-F-ND
XRT83L30
12
REV. 1.0.1
SINGLE-CHANNEL T1/E1/J1 LH/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 RXTSEL=”1”) TERSEL[1:0] control the transmit and receive termina-
tion impedance according to the following table:
In the Internal Termination mode, the receive termination is realized com-
pletely by internal resistors or the combination of internal and one fixed exter-
nal resistor (see description for RXRES[1:0] pins). In the internal termination
mode the transformer ratio of 1:2 and 2:1 is required for the transmitter and
receiver respectively with the transmitter output AC coupled to the trans-
former.
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 exter-
nal 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
240
RXRES0
0
1
210
150
0
1
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