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參數(shù)資料
| 型號(hào)： | XRT91L31IQ |
| 廠商： | Exar Corporation |
| 文件頁數(shù)： | 3/41頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX SONET/SDH 8BIT 64QFP |
| 標(biāo)準(zhǔn)包裝： | 160 |
| 類型： | 收發(fā)器，多路復(fù)用器 |
| PLL： | 是 |
| 主要目的： | 以太網(wǎng)，SONET/SDH |
| 輸入： | LVCMOS，LVPECL，LVTTL |
| 輸出： | LVCMOS，LVPECL，LVTTL |
| 電路數(shù)： | 1 |
| 差分 - 輸入:輸出： | 是/是 |
| 頻率 - 最大： | 622.08MHz |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-FQFP |
| 供應(yīng)商設(shè)備封裝： | 64-PQFP（10x10） |
| 包裝： | 托盤 |
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XRT91L31
11
REV. 1.0.2
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
RECEIVER SECTION
PIN DESCRIPTION
NAME
LEVEL
TYPE
PIN
DESCRIPTION
RXDO0
RXDO1
RXDO2
RXDO3
RXDO4
RXDO5
RXDO6
RXDO7
LVTTL,
LVCMOS
O
19
20
22
23
24
25
26
27
Receive Parallel Data Output
77.76 Mbps (STS-12/STM-4) / 19.44 Mbps (STS-3/STM-1)
8-bit parallel receive data output is updated simultaneously on
the falling edge of the RXPCLKO output. The 8-bit parallel
interface is de-multiplexed from the receive serial data input
MSB first (RXDO[7]). The XRT91L31 will output the data on the
falling edge of RXPCLKO clock.
RXIP
RXIN
Diff LVPECL
I
13
14
Receive Serial Data Input
The differential receive serial data stream of 622.08 Mbps
STS-12/STM-1 or 155.52 Mbps STS-3/STM-1 is applied to
these input pins. These pins have internal LVPECL common-
mode biasing circuit. External 100R termination is required
between RXIP/N pins.
XRXCLKIP
XRXCLKIN
Diff LVPECL
I
8
9
External Recovered Receive Clock Input
The differential receive serial data stream of 622.08 Mbps
STS-12/STM-1 or 155.52 Mbps STS-3/STM-1 is sampled on
the rising edge of this externally recovered differential clock
coming from the optical module. It is used when the internal
CDR unit is disabled and bypassed by the CDRDIS pin.
These pins have internal LVPECL common-mode biasing cir-
cuit. External 100R termination is required between XRX-
CLKIP/N pins.
NOTE: In the event that XRXCLKIP/N differential input pins are
unused, XRXCLKIP should be tied to VCC with a 1k
Ohm pull-up and XRXCLKIN should be tied to Ground
with a 1k Ohm pull-down.
RXPCLKO
LVTTL,
LVCMOS
O
29
Receive Parallel Clock Output (77.76 MHz or 19.44 MHz)
77.76 MHz (STS-12/STM-4) or 19.44 MHz (STS-3/STM-1)
clock output reference for the 8-bit parallel receive data output
RXDO[7:0]. The parallel received data output bus will be
updated on the falling edge of this clock.
CDRAUX-
REFCLK
LVTTL,
LVCMOS
I
32
Clock and Data Recovery Auxillary Reference Clock
77.76 MHz ± 200 ppm auxillary reference clock for the CDR.
NOTE: In the event that CDRAUXREFCLK LVTTL input pin is
unused, CDRAUXREFCLK should be tied to ground.
OOF
LVTTL,
LVCMOS
I
11
Out of Frame Input Indicator
This level sensitive input pin is used to initiate frame detection
and byte alignment recovery when OOF is declared by the
downstream device. When this pin is held High, FRAME-
PULSE will pulse for a single RXPCLKO period upon the detec-
tion of every third frame alignment A2 byte in the incoming
SONET/SDH Frame.
"Low" = Normal Operation
"High" = OOF Indication initiating frame detection and byte
boundary recovery and activating FRAMEPULSE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XRT91L31IQ-F | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC 8-Bit TTL 3.3V temp -45 to 85C;UART RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT91L31IQ-F | 制造商:Exar Corporation 功能描述:SONET Transceiver IC |
| XRT91L31IQTR | 功能描述:總線收發(fā)器 SONET/SDH, FULL DPLX 3.3V I/O, LOS, CMU RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| XRT91L31IQTR-F | 功能描述:總線收發(fā)器 SONET/SDH, FULL DPLX 3.3V I/O, LOS, CMU RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| XRT91L32 | 制造商:EXAR 制造商全稱:EXAR 功能描述:STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER |
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