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参数资料
| 型号： | MAX9238EUM+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 15/15页 |
| 文件大小： | 0K |
| 描述： | IC DESERIALIZER 21BIT 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： | 1.386Gbps |
| 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 |
MAX9234/MAX9236/MAX9238
Hot-Swappable, 21-Bit, DC-Balanced LVDS
Deserializers
9
Maxim Integrated
MAX9234/MAX9236/MAX9238 vs.
MAX9210/MAX9220/MAX9222
The MAX9234/MAX9236/MAX9238 operate in DC-bal-
ance mode only. Pinouts are the same as the
MAX9210/MAX9220/MAX9222 except that pin 6 on the
MAX9234/MAX9236/MAX9238 is no connect (N.C.). DC
balance allows AC-coupling with series capacitors. The
MAX9234/MAX9236/MAX9238 are hot-swappable and
the input frequency can be changed on the fly, but oth-
erwise the specifications and functionality are the same
as the MAX9210/MAX9220/MAX9222 operating in DC-
balance mode. See Table 1.
Applications Information
Selection of AC-Coupling Capacitors
Voltage droop and the DSV of transmitted symbols
cause signal transitions to start from different voltage
levels. Because the transition time is finite, starting the
signal transition from different voltage levels causes
timing jitter. The time constant for an AC-coupled link
needs to be chosen to reduce droop and jitter to an
acceptable level.
The RC network for an AC-coupled link consists of the
LVDS receiver termination resistor (RT), the LVDS driver
output resistor (RO), and the series AC-coupling capac-
itors (C). The RC time constant for two equal-value
series capacitors is (C x (RT + RO)) / 2 (Figure 10). The
RC time constant for four equal-value series capacitors
is (C x (RT + RO)) / 4 (Figure 11).
RT is required to match the transmission line imped-
ance (usually 100
) and RO is determined by the LVDS
driver design (the minimum differential output resis-
tance of 78
for the MAX9209/MAX9211/MAX9213/
MAX9215 serializers is used in the following example).
This leaves the capacitor selection to change the sys-
tem time constant.
TxIN_, DCA_, AND DCB_ ARE DATA FROM THE SERIALIZER.
DCA0
DCB1
DCA1
DCB2
DCA2
CYCLE N + 1
CYCLE N
CYCLE N - 1
TxIN2
TxIN6
TxIN3
TxIN4
TxIN5
TxIN9
TxIN13
TxIN10
TxIN11
TxIN12
TxIN2
TxIN3
TxIN4
DCA0
TxIN5
TxIN6
DCB0
TxIN9
TxIN10
TxIN11
DCA1
TxIN12
TxIN13
DCB1
TxIN16
TxIN17
TxIN18
DCA2
TxIN19
TxIN20
DCB2
TxIN0
TxIN1
TxIN7
TxIN8
TxIN14
TxIN15
TxIN16
TxIN20
TxIN17
TxIN18
TxIN19
DCB0
RxCLK IN
RxIN1
RxIN0
RxIN2
TxIN1
TxIN8
TxIN15
TxIN0
TxIN7
TxIN14
+
-
Figure 9. Deserializer Serial Input
0.8V
PWRDWN
RxCLK IN
RxOUT_
RxCLK OUT
RPDD
HIGH-Z
Figure 8. Power-Down Delay
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX9238EUM+ | 功能描述:串行器/解串器 - Serdes 21-Bit DC-Balanced LVDS 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 |
| MAX9238EUM+T | 功能描述:串行器/解串器 - Serdes 21-Bit DC-Balanced LVDS 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 |
| MAX9238EUM-D | 功能描述:LVDS 接口集成电路 RoHS:否 制造商:Texas Instruments 激励器数量:4 接收机数量:4 数据速率:155.5 Mbps 工作电源电压:5 V 最大功率耗散:1025 mW 最大工作温度:+ 85 C 封装 / 箱体:SOIC-16 Narrow 封装:Reel |
| MAX9238EUM-T | 功能描述:LVDS 接口集成电路 RoHS:否 制造商:Texas Instruments 激励器数量:4 接收机数量:4 数据速率:155.5 Mbps 工作电源电压:5 V 最大功率耗散:1025 mW 最大工作温度:+ 85 C 封装 / 箱体:SOIC-16 Narrow 封装:Reel |
| MAX9238EUM-TD | 功能描述:LVDS 接口集成电路 RoHS:否 制造商:Texas Instruments 激励器数量:4 接收机数量:4 数据速率:155.5 Mbps 工作电源电压:5 V 最大功率耗散:1025 mW 最大工作温度:+ 85 C 封装 / 箱体:SOIC-16 Narrow 封装:Reel |
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