參數(shù)資料
型號: MAX3984UTE+T
廠商: Maxim Integrated Products
文件頁數(shù): 3/18頁
文件大?。?/td> 0K
描述: IC PREMP DRIVER 1CH 16-TQFN
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類型: 驅(qū)動器
驅(qū)動器/接收器數(shù): 1/0
規(guī)程: 以太網(wǎng)
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 16-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 16-TQFN-EP(3x3)
包裝: 帶卷 (TR)
MAX3984
1Gbps to 10Gbps Preemphasis Driver with
Receive Equalizer
______________________________________________________________________________________
11
The IN_LEV pin sets the LOS assert and deassert lev-
els. When IN_LEV is LVTTL high or open, the LOS
assert threshold is 300mVP-P. When IN_LEV is LVTTL
low, the LOS assert threshold is 100mVP-P.
TX_DISABLE provides manual control for turning the
output off. The MAX3984 has a squelch function that
disables the output when there is an LOS condition. To
disable the squelch function, connect LOS to ground
(see the
Squelch section).
Applications Information
Squelch
The MAX3984 can automatically detect an incoming
signal and enable or disable the data outputs. To
enable squelch, the LOS pin must be connected to a
TTL high or VCC with a pullup resistor (≥ 4.7k
Ω).
Internally, TX_DISABLE and LOS are connected through
an OR-gate to control the CML outputs. The outputs are
disabled if LOS asserts. To turn off the squelch function,
LOS must be pulled to TTL low. The output can also be
disabled when TX_DISABLE is forced high.
Figure 4. Functional Diagram
GND
MAX3984
IN_LEV
LVTTL
VCC2
40k
Ω
VCC2
TX_DISABLE
LVTTL
VCC2
10k
Ω
VCC2
OUT_LEV
LVTTL
VCC2
20k
Ω
VCC2
PEO
VCC2
OUT+
OUT-
LOS
PE1
IN+
IN-
LVTTL
10k
Ω
VCC2
1
0
CML
FIXED
EQUALIZER
PREEMPHASIS
SIGNAL
DETECT
LIMITER
2
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