參數(shù)資料
型號(hào): XRT91L31IQTR-F
廠商: Exar Corporation
文件頁數(shù): 2/41頁
文件大?。?/td> 0K
描述: IC TXRX SONET/SDH 8BIT 64QFP
標(biāo)準(zhǔn)包裝: 1,000
類型: 收發(fā)器,多路復(fù)用器
PLL:
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: 帶卷 (TR)
XRT91L31
10
STS-12/STM-4 OR STS-3/STM-1 SONET/SDH TRANSCEIVER
REV. 1.0.2
REFCLKP
REFCLKN
LVPECL Diff
I
16
17
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.
NOTE:
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,
LVCMOS
I
36
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.
NOTE: 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
NAME
LEVEL
TYPE
PIN
DESCRIPTION
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