參數(shù)資料
型號(hào)： AD9548BCPZ-REEL7
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 7/112頁(yè)
文件大?。?/td> 0K
描述： IC CLOCK GEN/SYNCHRONIZR 88LFCSP
產(chǎn)品變化通告： AD9548 Mask Change 20/Oct/2010
標(biāo)準(zhǔn)包裝： 400
類型： 時(shí)鐘/頻率發(fā)生器，同步器
PLL： 是
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： 1:1
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： 88-VFQFN 裸露焊盤，CSP
供應(yīng)商設(shè)備封裝： 88-LFCSP-VQ（12x12）
包裝： 帶卷 (TR)
AD9548
Data Sheet
Rev. E | Page 104 of 112
Table 148. EEPROM Storage Sequence for Reference Input Settings
Address
Bits
Bit Name
Description
0x0E1F
[7:0]
Reference inputs
The default value of this register is 0x07, which the controller interprets as a data
instruction. Its decimal value is 7, which tells the controller to transfer eight bytes
of data (7 + 1) beginning at the address specified by the next two bytes. The
controller stores 0x07 in the EEPROM and increments the EEPROM address pointer.
0x0E20
[7:0]
Reference inputs
The default value of these two registers is 0x0500. Note that Register 0x0E20 and
Register 0x0E21 are the most significant and least significant bytes of the target
address, respectively. Because the previous register contains a data instruction,
these two registers define a starting address (in this case, 0x0500). The controller
stores 0x0500 in the EEPROM and increments the EEPROM pointer by 2. It then
transfers eight bytes from the register map (beginning at Address 0x0500) to the
EEPROM and increments the EEPROM address pointer by nine (eight data bytes
and one checksum byte). The eight bytes transferred correspond to the reference
inputs parameters in the register map.
0x0E21
[7:0]
Table 149. EEPROM Storage Sequence for Profile 0 and Profile 1 Settings
Address
Bits
Bit Name
Description
0x0E22
[7:0]
Profile 0 and Profile 1
The default value of this register is 0x63, which the controller interprets as a data
instruction. Its decimal value is 99, which this tells the controller to transfer 100
bytes of data (99 + 1) beginning at the address specified by the next two bytes. The
controller stores 0x63 in the EEPROM and increments the EEPROM address pointer.
0x0E23
[7:0]
Profile 0 and Profile 1
The default value of these two registers is 0x0600. Note that Register 0x0E23 and
Register 0x0E24 are the most significant and least significant bytes of the target
address, respectively. Because the previous register contains a data instruction,
these two registers define a starting address (in this case, 0x0600). The controller
stores 0x0600 in the EEPROM and increments the EEPROM pointer by 2. It then
transfers 100 bytes from the register map (beginning at Address 0x0600) to the
EEPROM and increments the EEPROM address pointer by 101 (100 data bytes and
one checksum byte). The 99 bytes transferred correspond to the Profile 0 and
Profile 1 parameters in the register map.
0x0E24
[7:0]
Table 150. EEPROM Storage Sequence for Profile 2 and Profile 3 Settings
Address
Bits
Bit Name
Description
0x0E25
[7:0]
Profile 2 and Profile 3
The default value of this register is 0x63, which the controller interprets as a data
instruction. Its decimal value is 99, which tells the controller to transfer 100 bytes of
data (99 + 1) beginning at the address specified by the next two bytes. The
controller stores 0x63 in the EEPROM and increments the EEPROM address pointer.
0x0E26
[7:0]
Profile 2 and Profile 3
The default value of these two registers is 0x0680. Note that Register 0x0E26 and
Register 0x0E27 are the most significant and least significant bytes of the target
address, respectively. Because the previous register contains a data instruction,
these two registers define a starting address (in this case, 0x0680). The controller
stores 0x0680 in the EEPROM and increments the EEPROM pointer by 2. It then
transfers 100 bytes from the register map (beginning at Address 0x0680) to the
EEPROM and increments the EEPROM address pointer by 101 (100 data bytes and
one checksum byte). The 99 bytes transferred correspond to the Profile 2 and
Profile 3 parameters in the register map.
0x0E27
[7:0]
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