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参数资料
型号： ADN4604ASVZ-RL
厂商： Analog Devices Inc
文件页数： 14/40页
文件大小： 0K
描述： IC CROSSPOINT SWIT 16X16 100TQFP
标准包装： 1,000
系列： XStream™
功能： 交叉点开关
电路： 1 x 16:16
电压电源： 单电源
电压 - 电源，单路/双路(±)： 2.7 V ~ 3.6 V
电流 - 电源： 95mA
工作温度： -40°C ~ 85°C
安装类型： 表面贴装
封装/外壳： 100-TQFP 裸露焊盘
供应商设备封装： 100-TQFP-EP（14x14）
包装： 带卷 (TR)
Data Sheet
ADN4604
Rev. A | Page 21 of 40
Advanced Settings
In addition to the basic settings provided in the TX basic
control registers, advanced settings are available in TX Drive 0
Control and TX Drive 1 Control registers (Address 0x30 to
Address 0x4F). The advanced settings are useful in applications
where each output requires an individually programmed
preemphasis or output level setting beyond what is available
in the lookup table in basic mode. To enable these advanced
settings, set the TX CTL SELECT bit in the TX basic control
register to a logic high. Next, program the TX Drive 0 control
and Drive 1 control registers (Address 0x30 to Address 0x4F) to
the desired output level and boost values. A subset of possible
settings is provided in Table 13. An expanded list of available
settings is shown in Table 19 in the Applications Information
section. These advanced settings can also be used to modify the
TX lookup table settings (Address 0x60 to Address 0x6F). The
advanced settings register map is shown in Table 15.
The preemphasis boost equation follows.
)
1
(
log
20
]
dB
[
10
V
DC
SW
DC
SW
PE
SW
Gain
(1)
VTTO
VH-PE
VSW-PE
VL-PE
VL-DC
VSW-DC
VH-DC
VOCM
TPE
0
793
4-
0
44
Figure 44. Signal Level Definitions
Table 13. TX Preemphasis and Output Swing Advanced
Settings
Single-Ended Output Levels and
PE Boost
Register
Settings
Output
Current
VSW-DC1
(mV)
VSW-PE1
(mV)
PE Boost
%
PE
(dB)
TX
Drive 0
TX
Drive 1
ITTO1 (mA)
200
0.00
0xBB
0x00
8
200
300
50.00
3.52
0xBB
0x99
12
200
350
75.00
4.86
0xBB
0xAA
14
200
400
100.00
6.02
0xBB
16
200
450
125.00
7.04
0xBB
0xCC
18
200
500
150.00
7.96
0xBB
0xDD
20
200
600
200.00
9.54
0xBB
0xFF
24
300
0.00
0xDD
0x00
12
300
400
33.33
2.50
0xDD
0x99
16
300
450
50.00
3.52
0xDD
0xAA
18
300
500
66.67
4.44
0xDD
0xBB
20
300
550
83.33
5.26
0xDD
0xCC
22
300
600
100.00
6.02
0xDD
24
300
700
133.33
7.36
0xDD
0xFF
28
400
0.00
0xFF
0x00
16
400
500
25.00
1.94
0xFF
0x99
20
400
550
37.50
2.77
0xFF
0xAA
22
400
600
50.00
3.52
0xFF
0xBB
24
400
650
62.50
4.22
0xFF
0xCC
26
400
700
75.00
4.86
0xFF
0xDD
28
400
800
100.00
6.02
0xFF
32
500
0.00
0xFF
0x0B
20
600
0.00
0xFF
0x0F
24
1 Symbol definitions are shown in Table 14.
Table 14. Symbol Definitions
Symbol
Formula
Definition
IDC
Programmable
Output current that sets output level
IPE
Programmable
Output current for PE delayed tap
ITTO
IDC + IPE
Total transmitter output current
TPE
Preemphasis pulse width
VDPP-DC
25 Ω × IDC × 2
Peak-to-peak differential voltage swing of non-
preemphasized waveform
VDPP-PE
25 Ω × ITTO × 2
Peak-to-peak differential voltage swing of preemphasized
waveform
VSW-DC
VDPP-DC/2 = VH-DC – VL-DC
DC single-ended voltage swing
VSW-PE
VDPP-PE/2 = VH-PE – VL-PE
Preemphasized single-ended voltage swing
VOCM_DC-COUPLED
25 Ω × ITTO/2
Output common-mode shift, dc-coupled outputs
VOCM_AC-COUPLED
50 Ω × ITTO/2
Output common-mode shift, ac-coupled outputs
VOCM
VTTO VOCM = ( VH-DC + VL-DC )/2
Output common-mode voltage
VH-DC
VTTO VOCM + VDPP-DC/2
DC single-ended output high voltage
VL-DC
VTTO VOCM VDPP-DC/2
DC single-ended output low voltage
VH-PE
VTTO VOCM + VDPP-PE/2
Maximum single-ended output voltage
VL-PE
VTTO VOCM VDPP-PE/2
Minimum single-ended output voltage
VTTO
Output termination voltage
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