參數資料
| 型號： | AD9785BSVZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 22/64頁 |
| 文件大小： | 0K |
| 描述： | IC DAC 12BIT 800MSPS 100TQFP |
| 產品培訓模塊： | Data Converter Fundamentals DAC Architectures |
| 標準包裝： | 1 |
| 系列： | TxDAC® |
| 位數： | 12 |
| 數據接口： | 串行 |
| 轉換器數目： | 2 |
| 電壓電源： | 模擬和數字 |
| 功率耗散（最大）： | 450mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-TQFP 裸露焊盤 |
| 供應商設備封裝： | 100-TQFP-EP（14x14） |
| 包裝： | 托盤 |
| 輸出數目和類型： | 2 電流，單極；2 電流，雙極 |
| 采樣率（每秒）： | 800M |
| 產品目錄頁面： | 785 (CN2011-ZH PDF) |
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AD9785/AD9787/AD9788
Rev. A | Page 29 of 64
The PLL control (PLLCTL) register comprises three bytes located at Address 0x04. These bits are routed directly to the periphery of the
digital logic. No digital functionality within the main digital block is required.
Table 14. PLL Control (PLLCTL) Register
Address
Bit
Name
Description
0x04
[23:21]
VCO Control Voltage
[2:0]
000 to 111, proportional to voltage at VCO, control voltage input (readback only). A value of
011 indicates that the VCO control voltage is centered.
[20:16]
PLL Loop Bandwidth
[4:0]
These bits control the bandwidth of the PLL filter. Increasing the value lowers the loop
bandwidth. Set to 01111 for optimal performance.
[15]
PLL enable
0: Default. With PLL off, the DAC sample clock is sourced directly by the REFCLK input.
1: With PLL on, the DAC clock is synthesized internally from the REFCLK input via the PLL
clock multiplier. See the Clock Multiplication section for details.
[14:13]
PLL VCO Divisor [1:0]
Sets the value of the VCO output divider, which determines the ratio of the VCO output
frequency to the DAC sample clock frequency, fVCO/fDACCLK.
00: fVCO/fDACCLK = 1
01: fVCO/fDACCLK = 2
10: fVCO/fDACCLK = 4
11: fVCO/fDACCLK = 8
[12:11]
PLL Loop Divisor [1:0]
Sets the value of the DACCLK divider, which determines the ratio of the DAC sample clock
frequency to the REFCLK frequency, fDACCLK/fREFCLK.
00: fDACCLK/fREFCLK = 2
01: fDACCLK/fREFCLK = 4
10: fDACCLK/fREFCLK = 8
11: fDACCLK/fREFCLK = 16
[10:8]
PLL Bias [2:0]
These bits control the VCO bias current. Set to 011 for optimal performance.
[7:2]
PLL Band Select [5:0]
These bits set the operating frequency of the VCO. For further details, refer to Table 35.
[1:0]
PLL VCO Drive [1:0]
These bits control the signal strength of the VCO output. Set to 11 for optimal performance.
The I DAC control register comprises two bytes located at Address 0x05. These bits are routed directly to the periphery of the digital
logic. No digital functionality within the main digital block is required.
Table 15. I DAC Control Register
Address
Bit
Name
Description
0x05
[15]
I DAC sleep
0: Default. If the I DAC sleep bit is cleared, the I DAC is active.
1: If the I DAC sleep bit is set, the I DAC is inactive and enters a low power state.
[14]
I DAC power-down
0: Default. If the I DAC power-down bit is cleared, the I DAC is active.
1: If the I DAC power-down bit is set, the I DAC is inactive and enters a low power state.
[13:10]
Reserved
Reserved for future use.
[9:0]
I DAC gain
adjustment
These bits are the I DAC gain adjustment bits.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9785BSVZRL | 功能描述:IC DAC 12BIT 800MSPS 100TQFP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 數模轉換器 系列:TxDAC® 產品培訓模塊:Data Converter Fundamentals DAC Architectures 標準包裝:750 系列:- 設置時間:7µs 位數:16 數據接口:并聯 轉換器數目:1 電壓電源:雙 ± 功率耗散（最大）:100mW 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-LCC（J 形引線） 供應商設備封裝:28-PLCC（11.51x11.51） 包裝:帶卷 (TR) 輸出數目和類型:1 電壓，單極；1 電壓，雙極 采樣率（每秒）:143k |
| AD9785-DPG2-EBZ | 功能描述:BOARD EVALUATION FOR AD9785 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 數模轉換器 (DAC) 系列:TxDAC® 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- DAC 的數量:4 位數:12 采樣率（每秒）:- 數據接口:串行，SPI? 設置時間:3µs DAC 型:電流/電壓 工作溫度:-40°C ~ 85°C 已供物品:板 已用 IC / 零件:MAX5581 |
| AD9785-EBZ | 制造商:Analog Devices 功能描述:Evaluation Board For AD9785 制造商:Analog Devices 功能描述:DUAL 12B, 1GSPS D-A CONVERTER - Bulk 制造商:Analog Devices 功能描述:Digital to Analog Eval. Board |
| AD9786 | 制造商:AD 制造商全稱:Analog Devices 功能描述:16-Bit, 200 MSPS/500 MSPS TxDAC+ with 2】/4】/8】 Interpolation and Signal Processing |
| AD9786BSV | 制造商:Analog Devices 功能描述:DAC 1-CH Interpolation Filter 16-bit 80-Pin TQFP EP 制造商:Analog Devices 功能描述:IC 16BIT DAC SMD 9786 TQFP80 |
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