參數(shù)資料
型號： XRT83L34IV
廠商： EXAR CORP
元件分類： 數(shù)字傳輸電路
英文描述： QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
中文描述： DATACOM, PCM TRANSCEIVER, PQFP128
封裝： 14 X 20 MM, 1.40 MM HEIGHT, TQFP-128
文件頁數(shù)： 11/82頁
文件大小： 447K
代理商： XRT83L34IV
XRT83L34
QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. P1.3.4
PRELIMINARY
8
TCLK_0
TCLK_1
TCLK_2
TCLK_3
1
128
103
102
I
Transmitter Clock Input for Channel _0 - Host mode and Hardware mode
E1
rate at 2.048MHz ± 50ppm.
T1
rate at 1.544MHz ± 32ppm.
During normal operation TCLK_0 is used for sampling input data at TPOS_0/
TDATA_0 and TNEG_0/CODES_0 while MCLK is used as the timing refer-
ence for the transmit pulse shaping circuit.
Transmitter Clock Input for Channel _1
Transmitter Clock Input for Channel _2
Transmitter Clock Input for Channel _3
N
OTE
:
Internally pulled “Low” with a 50k
resistor for all channels.
TAOS_0
TAOS_1
TAOS_2
TAOS_3
WR_R/W
RD_DS
ALE_AS
CS
69
70
71
72
69
70
71
72
I
Transmit All Ones for Channel _0 - Hardware mode
Setting this pin "High" enables the transmission of an “All Ones” Pattern from
Channel _0. A "Low" level stops the transmission of the “All Ones” Pattern.
Transmit All Ones for Channel _1
Transmit All Ones for Channel _2
Transmit All Ones for Channel _3
Host mode:
these pins act as various microprocessor functions.
See “Micro-
processor Interface” on page 9.
N
OTE
:
These pins are internally pulled “Low” with a 50k
resistor.
TXON_0
TXON_1
TXON_2
TXON_3
122
123
124
125
I
Transmitter Turn On for Channel _0
Hardware mode
Setting this pin "High" turns on the Transmit Section of Channel _0 and has no
control of the Channel_0 receiver. When TXON_0 = “0” then TTIP_0 and
TRING_0 driver outputs will be tri-stated.
N
OTE
:
In
Hardware
mode only, all receiver channels will be turned on upon
power-up and there is no provision to power them off. The receive
channels can only be independently powered on or off in
Host
mode.
In Host mode
The TXON_n bits in the channel control registers turn each channel Transmit
section ON or OFF. However, control of the on/off function can be transferred
to the Hardware pins by setting the TXONCTL bit (bit 6) to “1” in the register at
address hex 0x42.
Transmitter Turn On for Channel _1
Transmitter Turn On for Channel _2
Transmitter Turn On for Channel _3
N
OTE
:
Internally pulled "Low" with a 50k
resistor for all channels.
S
IGNAL
N
AME
P
IN
#
T
YPE
D
ESCRIPTION
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XRT83L34IVTR 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83L34IVTR-F 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT83L38 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
XRT83L38_07 制造商:EXAR 制造商全稱:EXAR 功能描述:OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
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