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参数资料
| 型号： | DAC1208D650HN |
| 厂商： | NXP Semiconductors N.V. |
| 元件分类： | 外设及接口 |
| 英文描述： | Dual 12-bit DAC; up to 650 Msps; 2×, 4× or 8× interpolating |
| 封装： | DAC1208D650HN/C1<SOT804-3|<<<1<Always Pb-free,;DAC1208D650HN/C1<SOT804-3|<<<1<Always Pb-free,; |
| 文件页数： | 13/98页 |
| 文件大小： | 557K |
| 代理商： | DAC1208D650HN |
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DAC1208D650
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 2 — 14 December 2010
13 of 98
NXP Semiconductors
DAC1208D650
2
×
, 4
×
or 8
×
interpolating DAC with JESD204A interface
10.2.1
Lane input
Each lane is CML compliant. It is terminated to a common voltage with an integrated 50
Ω
resistor.
The common-mode voltage is programmable by the SET_VCM_VOLTAGE register as
shown in
Table 75 on page 55
.
DC coupling is only possible if both the DAC and the transmitter have the same
common-mode voltage. If this is not the case AC coupling is required.
The deserializer performs the incoming data clock recovery and also the serial-to-parallel
conversion. Therefore, each lane includes its own PLL that must first lock.
The clock alignment module transfers the data from the regenerated clock to the frame
clock domain. The frequency of both clocks is the same but the phase relationship
between the clocks is unknown.
10.2.2
Sync and word align
As stated in JESD204A, the transmitter and the receiver first have to synchronize. This is
achieved through SYNC_OUT signals and a sync pattern (K28.5 symbol). The receiver
(i.e. DAC1208D650) first drives its SYNC_OUT outputs. The sync pattern is continuously
sent until the receiver deasserts the SYNC_OUT signal.
Fig 4.
Lane input termination
V
tt
001aak166
50
Ω
Ztt
50
Ω
Vin_p
Vin_n
Fig 5.
DC coupling
Fig 6.
AC coupling
001aak162
50
Ω
50
Ω
50
Ω
50
Ω
Zdiff = 100
Ω
data in +
data in
001aak163
50
Ω
50
Ω
50
Ω
50
Ω
Zdiff = 100
Ω
V
DD1
V
DD2
data in +
data in
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DAC1208D650HN/C1,5 | 功能描述:数模转换器- DAC DL 12BIT DAC 650MSPS 2X 4X OR 8X INT RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| DAC1208D650HN-C1 | 制造商:Integrated Device Technology Inc 功能描述:HVQFN64 - Bulk |
| DAC1208D650HN-C18 | 制造商:Integrated Device Technology Inc 功能描述:HVQFN64 - Tape and Reel |
| DAC1208D650W1/DB,598 | 功能描述:数据转换 IC 开发工具 DAC DEMOBOARD RoHS:否 制造商:Texas Instruments 产品:Demonstration Kits 类型:ADC 工具用于评估:ADS130E08 接口类型:SPI 工作电源电压:- 6 V to + 6 V |
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