參數(shù)資料
型號: AD9547BCPZ
廠商: Analog Devices Inc
文件頁數(shù): 74/104頁
文件大?。?/td> 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 71 of 104
Register0x0209 to Register0x0210—IRQ Mask
The IRQ mask register bits forma one-to-one correspondence with the bits of the IRQ monitor register (Address 0x0D02 to Address 0x0D09).
When set to Logic 1, the IRQ mask bits enable the corresponding IRQ monitor bits to indicate an IRQ event. The default for all IRQ mask
bits is Logic 0, which prevents the IRQ monitor from detecting any internal interrupts.
Table 51. IRQ Mask for SYSCLK
Address
Bit
Bit Name
Description
0x0209
[7:6]
Unused
Unused.
5
SYSCLK unlocked
Enables IRQ for indicating a SYSCLK PLL state transition from locked to unlocked.
4
SYSCLK locked
Enables IRQ for indicating a SYSCLK PLL state transition from unlocked to locked.
[3:2]
Unused
Unused.
1
SYSCLK cal complete
Enables IRQ for indicating that SYSCLK calibrationis complete.
0
SYSCLK cal started
Enables IRQ for indicating that SYSCLK calibrationhas begun.
Table 52. IRQ Mask for Distribution Sync, Watchdog Timer, and EEPROM
Address
Bit
Bit Name
Description
0x020A
[7:4]
Unused
Unused.
3
Distributionsync
Enables IRQ for indicating a distributionsync event.
2
Watchdog timer
Enables IRQ for indicating expirationof the watchdog timer.
1
EEPROM fault
Enables IRQ for indicating a fault during an EEPROM load or save operation.
0
EEPROM complete
Enables IRQ for indicating successful completionofan EEPROM load or save operation.
Table 53. IRQ Mask for the Digital PLL
Address
Bit
Bit Name
Description
0x020B
7
Switching
Enables IRQ for indicating that the DPLL is switching to a new reference.
6
Closed
Enables IRQ for indicating that the DPLL has enteredclosed-loop operation.
5
Free run
Enables IRQ for indicating that the DPLL has enteredfree-run mode.
4
Holdover
Enables IRQ for indicating that the DPLL has enteredholdover mode.
3
Frequency unlocked
Enables IRQ for indicating that the DPLL lost frequency lock.
2
Frequency locked
Enables IRQ for indicating that the DPLL has acquired frequency lock.
1
Phase unlocked
Enables IRQ for indicating that the DPLL lost phase lock.
0
Phase locked
Enables IRQ for indicating that the DPLL has acquired phase lock.
Table 54. IRQ Mask for History Update, Frequency Limit, and Phase Slew Limit
Address
Bit
Bit Name
Description
0x020C
[7:5]
Unused
Unused.
4
History updated
Enables IRQ for indicating the occurrence of a tuning word history update.
3
Frequency unclamped
Enables IRQ for indicating a state transition of the frequency limiter from clampedto
unclamped.
2
Frequency clamped
Enables IRQ for indicating a state transition of the frequency limiter from unclampedto
clamped.
1
Phase slew unlimited
Enables IRQ for indicating a state transition of the phase slew limiter from slew limitingto
not slew limiting.
0
Phase slew limited
Enables IRQ for indicating a state transition of the phase slew limiter from not slew
limitingto slew limiting.
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