参数资料
型号: MAX9321EKA+T
厂商: Maxim Integrated Products
文件页数: 7/9页
文件大小: 0K
描述: IC CLOCK/DATA DRVR 1:1 8SOIC
标准包装: 2,500
类型: 时钟/数据驱动器
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 是/是
输入: HSTL,LVECL,LVPECL
输出: LVECL,LVPECL
频率 - 最大: 3GHz
电源电压: 2.25 V ~ 3.8 V
工作温度: -40°C ~ 85°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
Detailed Description
The MAX9321/MAX9321A are low-skew differential
receiver/drivers designed for clock and data distribu-
tion. For interfacing to differential HSTL and LVPECL
signals, these devices operate over a +2.25V to +3.8V
supply range, allowing high-performance clock and
data distribution in systems with a nominal +2.5V or
+3.3V supply. For differential LVECL operation, these
devices operate from a -2.25V to -3.8V supply.
Inputs
The differential input can be configured to accept a sin-
gle-ended input when operating at approximately VCC -
VEE = 3.0V to 3.8V. This is accomplished by connect-
ing the on-chip reference voltage, VBB, to an input as a
reference. For example, the differential D, D input is
converted to a noninverting, single-ended input by con-
necting VBB to D and connecting the single-ended
input to D. An inverting input is obtained by connecting
VBB to D and connecting the single-ended input to D.
With the differential input configured as single ended
(using VBB), the single-ended input can be driven to
VCC and VEE or with a single-ended LVPECL/LVECL
signal.
When the differential input is configured as a single-
ended input (using VBB), the approximate supply range
is VCC - VEE = 3.0V to 3.8V. This is because one of the
inputs must be VEE + 1.2V or higher for proper opera-
tion of the input stage. VBB must be at least VEE + 1.2V
because it becomes the high-level input when the other
(single-ended) input swings below it. Therefore, mini-
mum VBB = VEE + 1.2V.
The minimum VBB output is VCC - 1.510V. Substituting
the minimum VBB into VBB = VEE + 1.2V results in a
minimum supply of 2.71V. Rounding up to a standard
supply gives the single-ended operating supply range
of VCC - VEE = 3.0V to 3.8V.
MAX9321/MAX9321A
Differential LVPECL/LVECL/HSTL
Receiver/Drivers
_______________________________________________________________________________________
7
(CONNECTED TO D)
VIL
VIH
VBB
VOH - VOL
VOH
VOL
Q
D
Figure 1. Switching with Single-Ended Input
0 (DIFFERENTIAL)
80%
20%
80%
20%
0 (DIFFERENTIAL)
VOH - VOL
VIHD - VILD
VIHD
VILD
VOH
VOL
Q
tPLHD
tPHLD
tR
tF
D
(Q) - (Q)
Figure 2. Differential Transition Time and Propagation Delay Timing Diagram
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