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參數(shù)資料
| 型號(hào)： | AD9511BCPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 37/60頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLOCK DIST 5OUT PLL 48LFCSP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 扇出緩沖器（分配），除法器 |
| PLL： | 是 |
| 輸入： | 時(shí)鐘 |
| 輸出： | CMOS，LVDS，LVPECL |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 2:5 |
| 差分 - 輸入:輸出： | 是/是 |
| 頻率 - 最大： | 1.2GHz |
| 除法器/乘法器： | 是/無 |
| 電源電壓： | 3.135 V ~ 3.465 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-VFQFN 裸露焊盤，CSP |
| 供應(yīng)商設(shè)備封裝： | 48-LFCSP-VQ（7x7） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 776 (CN2011-ZH PDF) |
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AD9511
Rev. A | Page 42 of 60
writing to Register 5Ah<0> = 1b. This update bit is self-clearing
(it is not required to write 0 to it to clear it). Since any number
of bytes of data can be changed before issuing an update
command, the update simultaneously enables all register
changes since any previous update.
Phase offsets or divider synchronization is not effective until a
SYNC is issued (see the Single-Chip Synchronization section).
Read
If the instruction word is for a read operation (I15 = 1b), the
next N × 8 SCLK cycles clock out the data from the address
specified in the instruction word, where N is 1 to 4 as
determined by W1:W0. The readback data is valid on the falling
edge of SCLK.
The default mode of the AD9511 serial control port is
unidirectional mode; therefore, the requested data appears on
the SDO pin. It is possible to set the AD9511 to bidirectional
mode by writing the SDO enable register at 00h<7> = 1b. In
bidirectional mode, the readback data appears on the SDIO pin.
A readback request reads the data that is in the serial control
port buffer area, not the active data in the AD9511’s actual
control registers.
05286-
095
SCLK
SDIO
SDO
CSB
UPDATE
REGISTERS
5Ah <0>
SERIAL
CONTROL
PORT
REGISTER
BUFFERS
AD9511
CORE
CONTROL
REGISTERS
Figure 45. Relationship Between Serial Control Port Register Buffers and
Control Registers of the AD9511
The AD9511 uses Address 00h to Address 5Ah. Although the
AD9511 serial control port allows both 8-bit and 16-bit
instructions, the 8-bit instruction mode provides access to five
address bits (A4 to A0) only, which restricts its use to the
address space 00h to 01F. The AD9511 defaults to 16-bit
instruction mode on power-up. The 8-bit instruction mode
(although defined for this serial control port) is not useful for
the AD9511; therefore, it is not discussed further in this data
sheet.
THE INSTRUCTION WORD (16 BITS)
The MSB of the instruction word is R/W, which indicates
whether the instruction is a read or a write. The next two bits,
W1:W0, indicate the length of the transfer in bytes. The final 13
bits are the addresses (A12:A0) at which to begin the read or
write operation.
For a write, the instruction word is followed by the number of
bytes of data indicated by Bits W1:W0, which is interpreted
according to Table 20.
Table 20. Byte Transfer Count
W1
W0
Bytes to Transfer
0
1
0
1
2
1
0
3
1
4
A12:A0
: These 13 bits select the address within the register map
that is written to or read from during the data transfer portion
of the communications cycle. The AD9511 does not use all of
the 13-bit address space. Only Bits A6:A0 are needed to cover
the range of the 5Ah registers used by the AD9511. Bits A12:A7
must always be 0b. For multibyte transfers, this address is the
starting byte address. In MSB first mode, subsequent bytes
increment the address.
MSB/LSB FIRST TRANSFERS
The AD9511 instruction word and byte data may be MSB first
or LSB first. The default for the AD9511 is MSB first. The LSB
first mode may be set by writing 1b to Register 00h<6>. This
takes effect immediately (since it only affects the operation of
the serial control port) and does not require that an update be
executed. Immediately after the LSB first bit is set, all serial
control port operations are changed to LSB first order.
When MSB first mode is active, the instruction and data bytes
must be written from MSB to LSB. Multibyte data transfers in
MSB first format start with an instruction byte that includes the
register address of the most significant data byte. Subsequent
data bytes must follow in order from high address to low
address. In MSB first mode, the serial control port internal
address generator decrements for each data byte of the
multibyte transfer cycle.
When LSB_First = 1b (LSB first), the instruction and data bytes
must be written from LSB to MSB. Multibyte data transfers in
LSB first format start with an instruction byte that includes the
register address of the least significant data byte followed by
multiple data bytes. The serial control port internal byte address
generator increments for each byte of the multibyte transfer
cycle.
The AD9511 serial control port register address decrements
from the register address just written toward 0000h for
multibyte I/O operations if the MSB first mode is active
(default). If the LSB first mode is active, the serial control port
register address increments from the address just written
toward 1FFFh for multibyte I/O operations.
Unused addresses are not skipped during multibyte I/O
operations; therefore, it is important to avoid multibyte I/O
operations that would include these addresses.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD9511BCPZ-REEL | 制造商:AD 制造商全稱:Analog Devices 功能描述:1.2 GHz Clock Distribution IC, PLL Core, Dividers, Delay Adjust, Five Outputs |
| AD9511BCPZ-REEL7 | 功能描述:IC CLOCK DIST 5OUT PLL 48LFCSP RoHS:是 類別:集成電路 (IC) >> 時(shí)鐘/計(jì)時(shí) - 時(shí)鐘發(fā)生器，PLL，頻率合成器 系列:- 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:PLL 時(shí)鐘發(fā)生器 PLL:帶旁路 輸入:LVCMOS，LVPECL 輸出:LVCMOS 電路數(shù):1 比率 - 輸入:輸出:2:11 差分 - 輸入:輸出:是/無 頻率 - 最大:240MHz 除法器/乘法器:是/無 電源電壓:3.135 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:帶卷 (TR) |
| AD9511-VCO/PCB | 制造商:Analog Devices 功能描述:EVAL BD FOR AD9511 1.2 GHZ CLOCK DISTRIBUTION IC, PLL CORE,D - Bulk |
| AD9512 | 制造商:AD 制造商全稱:Analog Devices 功能描述:800 MHz Clock Distribution IC,1.5 GHz Inputs, Dividers, Delay Adjust, Five Outputs |
| AD9512/PCB | 制造商:Analog Devices 功能描述:Evaluation Kit For 1.2 GHZ Clock Distribution IC, 1.6 GHZ Inputs, Dividers, Delay Adjust, Five Outputs 制造商:Analog Devices 功能描述:EVAL KIT FOR 1.2 GHZ CLOCK DISTRIBUTION IC, 1.6 GHZ INPUTS, - Bulk |
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