參數(shù)資料
型號(hào): AD9516-5/PCBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 36/76頁(yè)
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD9516-5 2.5GHZ
產(chǎn)品培訓(xùn)模塊: Active Filter Design Tools
設(shè)計(jì)資源: AD9516 Eval Brd Schematic
AD9516 Gerber Files
AD9516-5 BOM
標(biāo)準(zhǔn)包裝: 1
主要目的: 計(jì)時(shí),時(shí)鐘發(fā)生器
嵌入式:
已用 IC / 零件: AD9516-5
主要屬性: 2 輸入,14 輸出
次要屬性: CMOS、LVDS、LVPECL 輸出邏輯,ADIsimCLK&trade 圖形用戶界面
已供物品: 板,線纜,CD,電源
AD9516-5
Rev. A | Page 41 of 76
The most common way to execute the SYNC function is to use
the SYNC pin to do a manual synchronization of the outputs.
This requires a low going signal on the SYNC pin, which is held
low and then released when synchronization is desired. The timing
of the SYNC operation is shown in
(using VCO divider)
and
(VCO divider not used). There is an uncertainty
of up to one cycle of the clock at the input to the channel divider
due to the asynchronous nature of the SYNC signal with respect
to the clock edges inside the
. The delay from the
SYNC
rising edge to the beginning of synchronized output clocking is
between 14 and 15 cycles of clock at the channel divider input,
plus either one cycle of the VCO divider input (see
),
or one cycle of the CLK input (see
), depending on
whether the VCO divider is used. Cycles are counted from the
rising edge of the signal.
Another common way to execute the SYNC function is by setting
and resetting the soft SYNC bit at Register 0x230[0] (see Table 47
through Table 57 for details). Both the setting and resetting of
the soft SYNC bit require an update all registers operation
(Register 0x232[0] = 1) to take effect.
12
3
4
5
6
7
8
910
INPUT TO VCO DIVIDER
INPUT TO CHANNEL DIVIDER
OUTPUT OF
CHANNEL DIVIDER
SYNC PIN
1
11
12
13
14
14 TO 15 CYCLES AT CHANNEL DIVIDER INPUT + 1 CYCLE AT VCO DIVIDER INPUT
CHANNEL DIVIDER OUTPUT STATIC
CHANNEL DIVIDER
OUTPUT CLOCKING
CHANNEL DIVIDER
OUTPUT CLOCKING
07
97
2-
0
73
Figure 45. SYNC Timing When VCO Divider Is Used—CLK or VCO Is Input
INPUT TO CLK
INPUT TO CHANNEL DIVIDER
OUTPUT OF
CHANNEL DIVIDER
SYNC PIN
14 TO 15 CYCLES AT CHANNEL DIVIDER INPUT + 1 CYCLE AT CLK INPUT
12
3
4
5
6
7
8
910
11
12
13
14
1
CHANNEL DIVIDER OUTPUT STATIC
CHANNEL DIVIDER
OUTPUT CLOCKING
CHANNEL DIVIDER
OUTPUT CLOCKING
0
7
972
-07
4
Figure 46. SYNC Timing When VCO Divider Is Not Used—CLK Input Only
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