- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10789 > SY58620LMG (Micrel Inc)TXRX 4.25GBPS CML OUT 24-MLF PDF資料下載
參數(shù)資料
| 型號(hào)： | SY58620LMG |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 3/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | TXRX 4.25GBPS CML OUT 24-MLF |
| 標(biāo)準(zhǔn)包裝： | 75 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 1/1 |
| 電源電壓： | 3 V ~ 3.6 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-VFQFN 裸露焊盤，24-MLF? |
| 供應(yīng)商設(shè)備封裝： | 24-MLF?（4x4） |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1089 (CN2011-ZH PDF) |
| 其它名稱： | 576-2054-5 SY58620LMG-ND |
Micrel, Inc.
SY58620L
January 2006
11
M9999-012006-C
hbwhelp@micrel.com or (408) 955-1690
Detailed Description
Receiver
The receiver AC-coupled differential input distributes
data to 4.25Gbps with signals as small as 10mV
(20mVPP) or as large as 900mV (1.8VPP). The receiver
input features an internal 50
input termination
connected to an internal reference which optimizes
the inputs for AC-coupled signals. Input signals are
linearly amplified with 38dB of differential gain and the
output signal is limited to 400mV (800mVPP).
The receiver output buffer features 50
source
termination resistors and a current source that
provides
400mV
(800mVPP)
swing
into
50
termination. The output buffer terminates to standard
CML
loads
(100
across the output pair or
equivalent). See the “Output Stage Receiver” section
for more details.
Transmitter
The transmitter differential input includes Micrel’s
unique, patented 3-pin input termination architecture
that directly interfaces to any (AC- or DC-coupled)
differential signal as small as 100mV (200mVPP)
without any termination resistor network in the signal
path.
The transmitter output buffer terminates to standard
CML
loads
(100
across the output pair, or
equivalent). The output buffer is a special variable
swing CML buffer controlled by TXVCTRL. The output
buffer features 50
source termination and a current
source that provides 400mV (800mVPP) swing into
50
transmission lines. See the next section and
Figures 1a and 1b for more details on how to control
the variable output swing feature.
Figure 1a. Voltage Source Implementation
Figure 1b. Alternative Implementation
Transmitter CML Variable-Swing Output Buffer
Connecting V
REF_CTRL to TXVCTRL sets the
transmitter output buffer to maximum swing
Setting TXVCTRL to V
CC_TXQ, sets the transmitter
output buffer to minimum swing
Control of the transmitter output buffer swing can be
obtained by using a variable resistor connected
between VREF_CTRL and VCC_TXQ with a wiper
connected to TXVCTRL as shown in Figure 1b
Receiver LOS
The SY58620L features a chatter-free Loss-of-Signal
(LOS) TTL compatible output with an internal 4.75k
pull-up resistor. LOS circuitry monitors the input
receiver signal and asserts a signal when the input
signal
falls
below
the
threshold
set
by
the
programmable LOS level set pin (LOSLVL). When the
amplitude of the receiver input signal falls below the
threshold, LOS is asserted HIGH with a response time
of ~0.2uS. LOS can be fed into /RXEN to maintain
output stability by disabling the output during a Loss-
of-Signal condition. Figure 2a and 2b shows the LOS
connection to /RXEN. When /RXEN is HIGH, the
output signal RXQ is held LOW and /RXQ is held
HIGH. Typically, 2dB of LOS hysteresis is adequate to
prevent the receiver output from chattering. LOS
operation is optimized for data rates
≥622Mbps with
an
input
receiver
amplitude
of
at
least
10mV
(20mVPP). Due to the long time constant in slower
data rates below 622Mbps, the SY58620L LOS
function does not guarantee chatter-free operation for
low amplitude signals.
LOSLVL sets the threshold of the LOS input amplitude
detection. Connecting an external resistor, RLOSLVL,
between VCC and LOSLVL sets the input amplitude
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| VE-JT0-MY-S | CONVERTER MOD DC/DC 5V 50W |
| VI-BNJ-MW | CONVERTER MOD DC/DC 36V 100W |
| LTC1657LIGN#TRPBF | IC DAC 16BIT R-R MICROPWR 28SSOP |
| VE-J4H-MY-S | CONVERTER MOD DC/DC 52V 50W |
| LTC2844CG#PBF | IC TXRX 3.3V MULTIPROTCOL 28SSOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY58620LMG TR | 功能描述:總線收發(fā)器 4.25Gbps Transceiver w/ CML Outputs (I Temp, Green) 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 |
| SY58620LMGTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision 4.25Gbps CML Backplane Transceiver with Integrated Loopback |
| SY58621L | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision 3.2Gbps CML/LVPECL Backplane Transceiver with Integrated Loopback |
| SY58621L_10 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision 3.2Gbps CML/LVPECL Backplane |
| SY58621LMG | 功能描述:總線收發(fā)器 4.25Gbps Transceiver w/ CML/LVPECL Outputs (I Temp, Green) 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。