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参数资料
| 型号： | MAX9210EUM+D |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/17页 |
| 文件大小： | 0K |
| 描述： | IC DESERIALIZER PROG 48TSSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 39 |
| 功能： | 解串器 |
| 数据速率： | 1.785Gbps |
| 输入类型： | LVDS |
| 输出类型： | LVTTL，LVCMOS |
| 输入数： | 3 |
| 输出数： | 21 |
| 电源电压： | 3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 48-TFSOP（0.240"，6.10mm 宽） |
| 供应商设备封装： | 48-TSSOP |
| 包装： | 管件 |
MAX9210/MAX9214/MAX9220/MAX9222
Programmable DC-Balance
21-Bit Deserializers
______________________________________________________________________________________
11
series capacitors is (C x (RT + RO))/2 (Figure 12). The
RC time constant for four equal-value series capacitors
is (C x (RT + RO))/4 (Figure 13).
RT is required to match the transmission line imped-
ance (usually 100
Ω) and RO is determined by the LVDS
driver design (the minimum differential output resis-
tance of 78
Ω for the MAX9209/MAX9213 serializers is
used in the following example). This leaves the capaci-
tor selection to change the system time constant.
In the following example, the capacitor value for a
droop of 2% is calculated. Jitter due to this droop is
then calculated assuming a 1ns transition time:
C = - (2 x tB x DSV)/(ln (1 - D) x (RT + RO)) (Eq 1)
where:
C = AC-coupling capacitor (F).
tB = bit time (s).
DSV = digital sum variation (integer).
ln = natural log.
D = droop (% of signal amplitude).
RT = termination resistor (
Ω).
RO = output resistance (
Ω).
Equation 1 is for two series capacitors (Figure 12). The
bit time (tB) is the period of the parallel clock divided by
9. The DSV is 10. See equation 3 for four series capaci-
tors (Figure 13).
The capacitor for 2% maximum droop at 8MHz parallel
rate clock is:
C = - (2 x tB x DSV)/(ln (1 - D) x (RT + RO))
C = - (2 x 13.9ns x 10)/(ln (1 - 0.02) x (100
Ω + 78Ω))
C = 0.0773F
Jitter due to droop is proportional to the droop and
transition time:
tJ = tT x D (Eq 2)
where:
tJ = jitter (s).
tT = transition time (s) (0 to 100%).
D = droop (% of signal amplitude).
Jitter due to 2% droop and assumed 1ns transition time is:
tJ = 1ns x 0.02
tJ = 20ps
(7 + 2):1
1:(9 - 2)
7
100
Ω
(7 + 2):1
1:(9 - 2)
7
100
Ω
(7 + 2):1
1:(9 - 2)
7
100
Ω
PLL
100
Ω
MAX9209
MAX9213
MAX9210
MAX9214
MAX9220
MAX9222
TxOUT
TxCLK OUT
RxIN
RxCLK IN
21:3 SERIALIZER
3:21 DESERIALIZER
PWRDWN
RxCLK OUT
RxOUT
PWRDWN
TxCLK IN
TxIN
HIGH-FREQUENCY, CERAMIC
SURFACE-MOUNT CAPACITORS
CAN ALSO BE PLACED AT THE
SERIALIZER INSTEAD OF THE DESERIALIZER.
Figure 12. Two Capacitors per Link, AC-Coupled, DC-Balanced Mode
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9210EUM-T | 功能描述:串行器/解串器 - Serdes 21-Bit DC-Balanced Deserializer RoHS:否 制造商:Texas Instruments 类型:Deserializer 数据速率:1.485 Gbit/s 输入类型:ECL/LVDS 输出类型:LVCMOS 输入端数量:1 输出端数量:20 工作电源电压:2.375 V to 2.625 V 工作温度范围:0 C to + 70 C 封装 / 箱体:TQFP-64 |
| MAX9210EUM-TD | 功能描述:串行器/解串器 - Serdes 21-Bit DC-Balanced Deserializer RoHS:否 制造商:Texas Instruments 类型:Deserializer 数据速率:1.485 Gbit/s 输入类型:ECL/LVDS 输出类型:LVCMOS 输入端数量:1 输出端数量:20 工作电源电压:2.375 V to 2.625 V 工作温度范围:0 C to + 70 C 封装 / 箱体:TQFP-64 |
| MAX9211ETM | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Programmable DC-Balanced 21-Bit Serializers |
| MAX9211EUM | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Programmable DC-Balanced 21-Bit Serializers |
| MAX9212 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Programmable DC-Balance 21-Bit Deserializers |
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