參數(shù)資料
型號(hào): AD9547BCPZ
廠商: Analog Devices Inc
文件頁數(shù): 78/104頁
文件大小: 0K
描述: IC CLOCK GEN/SYNCHRONIZR 64LFCSP
產(chǎn)品變化通告: AD9547 Mask Change 20/Oct/2010
標(biāo)準(zhǔn)包裝: 1
類型: 時(shí)鐘/頻率發(fā)生器,同步器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS,LVDS,LVPECL
輸出: CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 750kHz
電源電壓: 1.71 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-VFQFN 裸露焊盤,CSP
供應(yīng)商設(shè)備封裝: 64-LFCSP-VQ(9x9)
包裝: 托盤
Data Sheet
AD9547
Rev. E | Page 75 of 104
CLOCK DISTRIBUTION OUTPUT CONFIGURATION (REGISTER 0x0400 TO REGISTER 0x0417)
Table 67. Distribution Settings1
Address
Bit
Bit Name
Description
0x0400
[7:6]
Unused
Unused.
5
External distributionresistor
Output current control for the clock distributionoutputs.
0 (default) = internal current setting resistor.
1 = external current setting resistor.
4
Receiver mode
Clock distribution receiver mode.
0 (default) = normal operation.
1 = high frequency mode (super-Nyquist).
[3:2]
Unused
Write a 1 to these bits.
1
OUT1 power-down
Power down clock distributionoutput OUT1.
0 (default) = normal operation.
1 = power down.
0
OUT0 power-down
Power down clock distributionoutput OUT0.
0 (default) = normal operation.
1 = power-down.
1
When Bits [1:0] = 11, the clock distribution output enters a deep sleep mode.
Table 68. Distribution Enable
Address
Bit
Bit Name
Description
0x0401
[7:2]
Unused
Unused.
1
OUT1 enable
Enable the OUT1 driver.
0 (default) = disable.
1 = enable.
0
OUT0 enable
Enable the OUT0 driver.
0 (default) = disable.
1 = enable.
Table 69. Distribution Synchronization
Address
Bit
Bit Name
Description
0x0402
[7:6]
Unused
Unused.
[5:4]
Sync source
Select the sync source for the clock distributionoutput channels.
00 (default) = direct.
01 = active reference.
10 = DPLL feedback edge.
11 = reserved.
[3:2]
Unused
Unused.
1
OUT1 sync mask
Mask the synchronous reset to the OUT1 divider.
0 (default) = unmasked.
1 = masked.
0
OUT0 sync mask
Mask the synchronous reset to the OUT0 divider.
0 (default) = unmasked.
1 = masked.
Table 70. Automatic Synchronization
Address
Bit
Bit Name
Description
0x0403
[7:2]
Unused
Unused.
[1:0]
Automatic sync mode
Autosync mode.
00 (default) = disabled.
01 = sync on DPLL frequency lock.
10 = sync on DPLL phase lock.
11 = reserved.
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