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參數(shù)資料
| 型號： | SY58621L |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | Precision 3.2Gbps CML/LVPECL Backplane Transceiver with Integrated Loopback |
| 中文描述： | 精密達(dá)3.2Gbps CML / LVPECL信號背板收發(fā)器集成環(huán)回 |
| 文件頁數(shù)： | 5/19頁 |
| 文件大?。?/td> | 308K |
| 代理商： | SY58621L |
Micrel, Inc.
SY58621L
January 2006
5
M9999-012006-B
hbwhelp@micrel.com
or (408) 955-1690
Outputs
Pin Number
Pin Name
Pin Description
Loss-of-Signal Output. TTL-compatible output with internal 4.75k
Ω
pull-up resistor. Loss-of-
Signal asserts to logic HIGH when the receiver input amplitudes fall below the threshold set
by LOSLVL.
22
LOS
19
LOSLVL
RX Loss-of-Signal Level Set. A resistor (R
LOSLVL
) connected between LOSLVL and V
CC
sets
the threshold for the data input amplitude at which the LOS output is asserted. Default is max
sensitivity. LOSLVL is used to set the Loss-of-Signal (LOS) voltage. It is internally connected
to a 2.8k
Ω
pull-down resistor to an internal V
REF
voltage source. See “Typical Operating
Characteristics,” and “Application Implementation” sections for more details.
17, 16
RXQ, /RXQ
Receiver Differential Output. Output is CML compatible. Refer to the “Truth Table” and
“Output Stage” sections for more details. Unused output pair may be left open. The output is
designed to drive 400mV (800mV
PP
) into 50
Ω
to V
CC
or 100
Ω
across the pair.
5, 6
TXQ, /TXQ
Transmitter differential Variable Swing Output. Output is LVPECL-compatible. Please refer
to the “Truth Table” section for details. Unused output pair may be left open. Each output is
designed to drive 80mV (min) to 800mV (typ) into 50_ to V
CC
-2V depending on TXVCTRL.
Transmitter Output Reference Voltage. Output biases to V
CC
_
TXQ
-1.3V. Connecting V
REF_CTRL
to TXVCTRL sets the transmitter output swing to max swing.
Transmitter Input Reference Voltage. This output biases to V
CC
-1.3V. It is used when AC
coupling the transmitter input. For AC-coupled applications, connect TXVREF-AC to the
TXVT pin and bypass with a 0.01
μ
F low ESR capacitors to V
CC
. See “Input Stage” section for
more details. Maximum sink/source current is ±1.5mA.
8
VREF_CTRL
10
TXVREF-AC
Power Pins
Pin Number
Pin Name
GND,
Exposed Pad
Pin Description
3, 24
Ground. GND pins and exposed pad must be connected to the same ground plane.
12, 15, 18
VCC
3.3V ±10% Positive Power Supply. Bypass with 0.1
μ
F//0.01
μ
F low ESR capacitors and place
as close to each V
CC
pins as possible. Power pins are not connected internally and must be
connected to the same power supply externally.
21
VCC_RXIN
3.3V ±10% Receive Input Power Supply. Bypass with 0.1
μ
F//0.01
μ
F low ESR capacitors and
place as close to the V
CC_RXIN
pin as possible. Power pins are not connected internally and
must be connected to the same power supply externally.
4
VCC_TXQ
3.3V ±10% Output Transmit Power Supply. Bypass with 0.1
μ
F//0.01
μ
F low ESR capacitors
and place as close to the V
CC_TXQ
pin as possible. Power pins are not connected internally
and must be connected to the same power supply externally.
Truth Table
LOOPBACK
0
RXQ
RXIN
TXQ
TXIN
1
TXIN
RXIN
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| SY58621LMG TR | 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 |
| SY58621LMGTR | 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 |
| SY58626L | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:DC-to-6.4Gbps Backplane Transmit Buffer with |
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