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參數(shù)資料
| 型號(hào)： | AD9957/PCBZ |
| 廠商： | Analog Devices Inc |
| 文件頁(yè)數(shù)： | 41/64頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL AD9957 QUADRATURE MOD |
| 產(chǎn)品培訓(xùn)模塊： | Direct Digital Synthesis Tutorial Series (1 of 7): Introduction Direct Digital Synthesizer Tutorial Series (7 of 7): DDS in Action Direct Digital Synthesis Tutorial Series (3 of 7): Angle to Amplitude Converter Direct Digital Synthesis Tutorial Series (6 of 7): SINC Envelope Correction Direct Digital Synthesis Tutorial Series (4 of 7): Digital-to-Analog Converter Direct Digital Synthesis Tutorial Series (2 of 7): The Accumulator |
| 設(shè)計(jì)資源： | AD9957 Eval Brd Schematic AD9957 BOM AD9957 Gerber Files |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | AgileRF™ |
| 主要目的： | 計(jì)時(shí)：DDS 調(diào)制器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | AD9957 |
| 主要屬性： | 14 位數(shù)模轉(zhuǎn)換器，32 位調(diào)節(jié)字寬 |
| 次要屬性： | 1GHz 圖形用戶界面 |
| 已供物品： | 板，軟件 |
| 產(chǎn)品目錄頁(yè)面： | 552 (CN2011-ZH PDF) |
| 相關(guān)產(chǎn)品： | AD9957BSVZ-ND - IC DDS 1GSPS 14BIT IQ 100TQFP AD9957BSVZ-REEL-ND - IC DDS 1GSPS 14BIT IQ 100TQFP |
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AD9957
Data Sheet
Rev. C | Page 46 of 64
POWER SUPPLY PARTITIONING
The AD9957 features multiple power supplies, and their power
consumption varies with its configuration. This section covers
which power supplies can be grouped together and how the
power consumption of each block varies with frequency.
The values quoted in this section are for comparison only. Refer
to Table 1 for exact values. With each group, bypass capacitors of
1 μF in parallel with a 10 μF capacitor should be used.
The recommendations here are for typical applications, for
which there are four groups of power supplies: 3.3 V digital,
3.3 V analog, 1.8 V digital, and 1.8 V analog.
Applications demanding the highest performance may require
additional power supply isolation.
3.3 V SUPPLIES
DVDD_I/O (Pin 11, Pin 15, Pin 21, Pin 28, Pin 45, Pin 56,
Pin 66)
These 3.3 V supplies can be grouped together. The power
consumption on these pins varies dynamically with serial port
activity.
AVDD (Pin 74 to Pin 77 and Pin 83)
These are 3.3 V DAC power supplies that typically consume
about 28 mA. At a minimum, a ferrite bead should be used to
isolate these from other 3.3 V supplies, with a separate regulator
being ideal. The current consumption of these supplies consist
mainly of biasing current and do not vary with frequency.
1.8 V SUPPLIES
DVDD (Pin 17, Pin 23, Pin 30, Pin 47, Pin 57, Pin 64)
These pins can be grouped together. Their current consumption
increases linearly with the system clock frequency. A system
clock of 1 GHz produces a typically current consumption of
610 mA in QDUC mode. There is also a slight (~5%) increase
as fOUT increases from 50 MHz to 400 MHz.
AVDD (Pin 3)
This 1.8 V supply powers the REFCLK multiplier (PLL) and
consumes about 7 mA. For applications demanding the highest
performance with the PLL enabled, this supply should be
isolated from other 1.8 V AVDD supplies with a separate
regulator. For less demanding applications this supply can be
run off the same regulator as Pin 89, Pin 92 with a ferrite bead
to isolate Pin 3 from Pin 89, and Pin 89.
The loop filter for the PLL should directly connect to Pin 3. If
the PLL is bypassed, pin 3 should still be powered, but isolation
is not critical.
AVDD (Pin 6)
This pin can be grouped together with the DVDD 1.8V supply
pins. For the highest performance, a ferrite bead should be used
for isolation, with a separate regulator being ideal.
AVDD (Pin 89 and Pin 92)
This 1.8 V supply for the REFCLK input consumes about
15 mA. The supply can be run off the same as Pin 3 with a
ferrite bead to isolate Pin 3 from Pin 89 and Pin 92. At a
minimum, a ferrite bead should be used to isolate these from
other 1.8 V supplies. However, for applications demanding the
highest performance, a separate regulator is recommended.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9958 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2-Channel 500 MSPS DDS with 10-Bit DACs |
| AD9958 PCB | 制造商:Analog Devices 功能描述:EVAL BOARD ((NS)) |
| AD9958/PCB | 制造商:Analog Devices 功能描述:Evaluation Board For 2-Channel 500 MSPS DDS With 10-Bit DACs 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述:IC 10-BIT DAC DDS |
| AD9958/PCBZ | 功能描述:BOARD EVALUATION FOR AD9958 RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估演示板和套件 系列:AgileRF™ 標(biāo)準(zhǔn)包裝:1 系列:PSoC® 主要目的:電源管理，熱管理 嵌入式:- 已用 IC / 零件:- 主要屬性:- 次要屬性:- 已供物品:板，CD，電源 |
| AD9958/PCBZ | 制造商:Analog Devices 功能描述:EVAL BOARD, AD9958 DIRECT DIGITAL SYNTHE |
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