參數(shù)資料
型號: MAX9378EUA+
廠商: Maxim Integrated Products
文件頁數(shù): 6/9頁
文件大?。?/td> 0K
描述: IC TRANSLATOR SGL 8-UMAX
標(biāo)準(zhǔn)包裝: 50
邏輯功能: 變換器
位數(shù): 1
輸入類型: AnyLevel?
輸出類型: LVDS
通道數(shù): 1
輸出/通道數(shù)目: 1
差分 - 輸入:輸出: 是/是
傳輸延遲(最大): 0.6ns
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
封裝/外殼: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 8-uMAX
包裝: 管件
MAX9377/MAX9378
Detailed Description
The MAX9377/MAX9378 are fully differential, high-
speed, low-jitter anything-to-LVPECL and anything-to-
LVDS translators, respectively, with a selectable
divide-by-four function. Low propagation delay and
high speed make them ideal for various high-speed
network routing and backplane applications at speeds
up to 2GHz in nondivide mode.
The MAX9377/MAX9378 accept any differential input
signals within the supply rails and with a minimum
amplitude of 100mV. Inputs are fully compatible with
the LVDS, LVPECL, HSTL, and CML differential signal-
ing standards. The MAX9377 outputs are LVPECL and
have sufficient current to drive 50
transmission lines.
The MAX9378 outputs are LVDS and conform to the
ANSI EIA/TIA-644 LVDS standard.
Inputs
Inputs have a wide common-mode range of 0.05V to
(VCC - 0.05V), which accommodates any differential sig-
nals within the supply rails, and requires a minimum of
100mV to switch the outputs. This allows the
MAX9377/MAX9378 inputs to support virtually any differ-
ential signaling standard.
RST and SEL Inputs
The frequency-divide functions are controlled by two
LVCMOS/LVTTL inputs, RST and SEL. SEL selects
either the divide-by-four function or a no-division func-
tion as shown in Table 1. RST, an asynchronous active-
high input, resets the divide-by-four within the device
and places the circuits into a known state. Setting RST
high when powering up the device with SEL high pre-
vents the unknown states with the divider from being
propagated to the outputs. If the device is powered up
with SEL high but without asserting RST, the outputs
are only guaranteed to be 1/4th the input frequency
after 2.5 cycles have been applied to the input.
LVPECL Outputs (MAX9377)
The MAX9377 LVPECL outputs are emitter followers
that require external resistive paths to a voltage source
(VT = VCC - 2.0V typ) more negative than worst-case
VOL for proper static and dynamic operation. When
properly terminated, the outputs generate steady-state
voltage levels, VOL or VOH with fast transition edges
between state levels. Output current always flows into
the termination during proper operation.
LVDS Outputs (MAX9378)
The MAX9378 LVDS outputs require a resistive load to
terminate the signal and complete the transmission
loop. Because the device switches current and not volt-
age, the actual output voltage swing is determined by
the value of the termination resistor. With a 3.5mA typi-
cal output current, the MAX9378 produces an output
voltage of 350mV when driving a 100
load.
Anything-to-LVPECL/LVDS Translators
with Pin-Selectable Divide-by-Four
6
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1
SEL
Frequency Divider Select Input. High = divide by four, low = no division. Internal 75k
pulldown to
GND.
2
IN
Differential LVDS/Any Noninverting Input
3
IN
Differential LVDS/Any Inverting Input
4
GND
Ground
5
RST
Frequency Divider Reset Input. Active high, asynchronous, reset. Internal 75k
pulldown to GND.
MAX9377
Differential LVPECL Inverting Output. Terminate with 50
±1% to VCC - 2V.
6
OUT
MAX9378
Inverting LVDS Output. Terminate to OUT with 100
±1%.
MAX9377
Differential LVPECL Noninverting Output. Terminate with 50
±1% to VCC - 2V.
7
OUT
MAX9378
Noninverting LVDS Output. Terminate to
OUT with 100
±1%.
8VCC
Positive Supply. Bypass from VCC to GND with 0.1F and 0.01F ceramic capacitors. Place the
capacitors as close to the device as possible with the smaller value capacitor closest to the device
RST
SEL
OUTPUT
X
L or open
No frequency division.
H
Outputs are placed in differential low.
L
H
Divide-by-four function.
Table 1. SEL AND RST Truth Table
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX9378EUA/GG8 制造商:Maxim Integrated Products 功能描述:ANYTHING-TO-LVPECL/LVDS TRANSLATOR WITH PIN-SELECTABLE DIVID - Rail/Tube
MAX9378EUA+ 功能描述:轉(zhuǎn)換 - 電壓電平 MAX9378EUA+ RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
MAX9378EUA+T 功能描述:轉(zhuǎn)換 - 電壓電平 X->LVPECL/LVDS Translator RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
MAX9378EUA-T 功能描述:轉(zhuǎn)換 - 電壓電平 RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
MAX9380EKA 制造商:Maxim Integrated Products 功能描述:SINGLE-ENDED-TO-DIFFERENTIAL LVECL/ - Cut Tape Product