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參數資料
| 型號： | AD9956YCPZ1 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 2.7 GHz DDS-Based AgileRF |
| 中文描述： | 2.7千兆赫基于DDS的AgileRF |
| 文件頁數： | 21/32頁 |
| 文件大?。?/td> | 805K |
| 代理商： | AD9956YCPZ1 |
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AD9956
Automatic Synchronization
In automatic synchronization mode, the device is placed into
slave mode and automatically aligns the internal SYNC_CLK to
a master SYNC_CLK signal, supplied on the SYNC_IN input.
When this bit is enabled, the PLL_LOCK is not available as an
output, however, an out-of-lock condition can be detected by
reading Control Function Register 1 and checking the status of
the PLL_LOCK_ERROR bit, CFR1<24>. The automatic
synchronization function is enabled by setting the Control
Function Register 1 automatic synchronization bit, CFR1<3>.
To employ this function at higher clock rates (SYNC_CLK >
62.5 MHz and SYSCLK > 250 MHz), the high speed sync
enable bit (CFR1<0>) should be set as well.
Manual Synchronization, Hardware Controlled
In this mode, the user controls the timing relationship of the
SYNC_CLK with respect to SYSCLK. When hardware manual
synchronization is enabled, the PLL_LOCK/ SYNC_IN pin
becomes a digital input. For each and every rising edge detected
on the SYNC_IN input, the device advances the SYNC_IN
rising edge by one SYSCLK period. When this bit is enabled, the
PLL_LOCK is not available as an output. However, an out-of-
lock condition can be detected by reading Control Function
Register 1 and checking the status of the PLL Lock Error bit,
CFR1<24>. This synchronization function is enabled by setting
the hardware manual synchronization enable bit, CFR1<1>.
Rev. 0 | Page 21 of 32
Manual Synchronization, Software Controlled
In this mode, the user controls the timing relationship between
SYNC_CLK and SYSCLK through software programming.
When the software manual synchronization bit (CFR1<2>) is
set high, the SYNC_CLK is advanced by one SYSCLK cycle.
Once this operation is complete, the bit is cleared. The user can
set this bit repeatedly to advance the SYNC_CLK rising edge
multiple times. Because the operation does not use the
PLL_LOCK/ SYNC_IN pin as a SYNC_IN input, the
PLL_LOCK signal can be monitored on the PLL_LOCK pin
during this operation.
SYSCLK DUT 1
SYNC CLK
DUT1
SYNC CLK DUT2 WITHOUT
SYNC_CLK ALIGNED
SYSCLK DUT 2
SYNCHRONIZATION FUNCTIONS CAN ALIGN DIGITAL CLOCK
RELATIONSHIPS, THEY CANNOT DESKEW THE EDGES OF CLOCKS
SYNC CLK DUT2 WITH
SYNC_CLK ALIGNED
0
1
2
3
0
0
1
2
3
3
0
Figure 28. Synchronization Functions: Capabilities and Limitations
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD9956YCPZ-REEL1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:2.7 GHz DDS-Based AgileRF |
| AD9956YCPZ-REEL7 | 功能描述:IC SYNTHESIZER 1.8V 48LFCSP RoHS:是 類別:集成電路 (IC) >> 接口 - 直接數字合成 (DDS) 系列:- 產品變化通告:Product Discontinuance 27/Oct/2011 標準包裝:2,500 系列:- 分辨率（位）:10 b 主 fclk:25MHz 調節字寬（位）:32 b 電源電壓:2.97 V ~ 5.5 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應商設備封裝:16-TSSOP 包裝:帶卷 (TR) |
| AD9957 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Quadrature Digital Upconverter with 18-Bit IQ Data Path and 14-Bit DAC |
| AD9957/PCBZ | 功能描述:BOARD EVAL AD9957 QUADRATURE MOD RoHS:是 類別:編程器，開發系統 >> 評估演示板和套件 系列:AgileRF™ 標準包裝: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 |
| AD9957_07 | 制造商:AD 制造商全稱:Analog Devices 功能描述:1 GSPS Quadrature Digital Upconverter with 18-Bit IQ Data Path and 14-Bit DAC |
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