参数资料
型号: AD8153ACPZ-RL7
厂商: Analog Devices Inc
文件页数: 14/24页
文件大小: 0K
描述: IC SW MUX/DEMUX SGL BUFF 32LFCSP
标准包装: 1
系列: XStream™
应用: 2:1 多路复用器/1:2 多路分配器
接口: I²C
电源电压: 3 V ~ 3.6 V
封装/外壳: 32-VFQFN 裸露焊盘,CSP
供应商设备封装: 32-LFCSP-EP(5x5)
包装: 标准包装
安装类型: 表面贴装
产品目录页面: 801 (CN2011-ZH PDF)
配用: AD8153-EVALZ-ND - BOARD EVALUATION FOR AD8153
其它名称: AD8153ACPZ-RL7DKR
AD8153
Rev. 0 | Page 21 of 24
OUTPUT COMPLIANCE
Figure 40 is a graphical depiction of the single-ended waveform
at the output of the AD8153. The common-mode level (VOCM)
and the amplitude (VOSE) of this waveform are a function of the
output tail current (IT), the output termination supply voltage
(VTTO), the topology of the far-end receiver, and whether ac- or
dc-coupling is used. Keep in mind that the output tail current
varies with the pre-emphasis level. The user must ensure that
the high (VH) and low (VL) voltage excursions at the output are
within the single-ended absolute voltage range limits as
specified in Table 1. Failure to understand the implications of
output signal levels and the choice of ac- or dc-coupling may
lead to transistor saturation and poor transmitter performance.
Table 9 shows an example calculation of the output levels for the
typical case, where VCC = VTTO = 3.3 V, with 50 Ω far-end
terminations to a 3.3 V supply.
06
39
3-
01
2
VOCM
VH
VL
VOSE-DC VOSE-BOOST
VTTO
~320ps
Figure 40. Single-Ended Output Waveform
Table 9. Output Voltage Levels
DC-Coupled
AC-Coupled
PE Setting
IT (mA)
VOSE-DC (mV p-p)
VOSE-BOOST (mV p-p)
VOCM (V)
VH (V)
VL (V)
VOCM (V)
VH (V)
VL (V)
0
16
400
3.1
3.3
2.9
3.1
2.7
1
20
400
500
3.05
3.3
2.8
3.05
2.55
2
24
400
600
3
3.3
2.7
3
2.4
3
28
400
700
2.95
3.3
2.6
2.95
2.25
Table 10. Symbol Definitions
Symbol
Formula
Definition
VOSE-DC
Ω
×
=
25
0
PE
T
I
Single-ended output voltage swing after settling
VOSE-BOOST
Ω
×25
T
I
Boosted single-ended output voltage swing
VOCM (dc-coupled)
Ω
×
25
2
T
TTO
I
V
Common-mode voltage when the output is dc-coupled
VOCM (ac-coupled)
Ω
×
50
2
T
TTO
I
V
Common-mode voltage when the output is ac-coupled
VH
VOCM + VOSE-BOOST/2
High single-ended output voltage excursion
VL
VOCM - VOSE-BOOST/2
Low single-ended output voltage excursion
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