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參數(shù)資料
| 型號： | XRT91L32IQ-F |
| 廠商： | EXAR CORP |
| 元件分類： | 數(shù)字傳輸電路 |
| 英文描述： | STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER |
| 中文描述： | TRANSCEIVER, PQFP100 |
| 封裝： | 14 X 20 MM, 2.70 MM HEIGHT, PLASTIC, QFP-100 |
| 文件頁數(shù)： | 9/37頁 |
| 文件大?。?/td> | 417K |
| 代理商： | XRT91L32IQ-F |
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xr
REV. 1.0.2
XRT91L32
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
7
TXPCLK_O
LVTTL
O
82
Transmit Parallel Clock Output (77.76/19.44 MHz)
Transmit Parallel Clock Output Operation
This pin will output a 77.76 MHz (STS-12/STM-4) or 19.44 MHz
(STS-3/STM-1) clock output reference for the 8-bit parallel
transmit data input TXDI[7:0]. This clock is used by the framer/
mapper device to present the TXDI[7:0] data which the
XRT91L30 will latch on the rising edge of this clock. This
enables the framer/mapper device and the XRT91L30 trans-
ceiver to be in synchronization.
REFCLKP
REFCLKN
LVPECL Diff
I
29
30
Reference Clock Input (77.76 MHz or 19.44 MHz)
This differential clock input reference is used for the transmit
clock multiplier unit (CMU) and clock data recovery (CDR) to
provide the necessary high speed clock reference for this
device. It will accept either a 77.76 MHz or a 19.44 MHz Differ-
ential LVPECL clock source. Pin CMUFREQSEL determines
the value used as the reference. See Pin CMUFREQSEL for
more details. REFCLKP/N inputs are internally biased to 1.65V.
N
OTE
:
In the event that TTLREFCLK LVTTL input is used
instead of these differential inputs for clock reference,
the REFCLKP should be tied to ground.
TTLREFCLK
LVTTL
I
56
Auxillary Reference Clock Input (77.76 MHz or 19.44 MHz)
This LVTTL clock input reference is used for the transmit clock
multiplier unit (CMU) and clock data recovery (CDR) to provide
the necessary high speed clock reference for this device. It will
accept either a 77.76 MHz or a 19.44 MHz LVTTL clock source.
Pin CMUFREQSEL determines the value used as the refer-
ence. See Pin CMUFREQSEL for more details.
N
OTE
:
In the event that REFCLKP/N differential inputs is used
instead of this LVTTL input for clock reference, the
TTLREFCLK should be tied to ground.
TRANSMITTER SECTION
N
AME
L
EVEL
T
YPE
P
IN
D
ESCRIPTION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| XRT91L80 | 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L80_0507 | 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L80IB | 2.488/2.666 GBPS STS-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L81 | 2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER |
| XRT91L81IB | 2.488/2.666GBPS OC-48/STM-16 SONET/SDH TRANSCEIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT91L32IQTR | 功能描述:LIN 收發(fā)器 PHY Transceiver RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| XRT91L32IQTR-F | 功能描述:LIN 收發(fā)器 PHY Transceiver RoHS:否 制造商:NXP Semiconductors 工作電源電壓: 電源電流: 最大工作溫度: 封裝 / 箱體:SO-8 |
| XRT91L33 | 制造商:EXAR 制造商全稱:EXAR 功能描述:STS-12/STS-3 MULTIRATE CLOCK AND DATA RECOVERY UNIT |
| XRT91L33AIG-F | 制造商:Exar Corporation 功能描述:CDR 155.52Mbps/622.08Mbps SONET/SDH 20-Pin TSSOP |
| XRT91L33ES | 功能描述:界面開發(fā)工具 Eval System for XRT91L33 Series RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
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