- 您现在的位置：买卖IC网 > PDF目录1987 > AD9522-1BCPZ-REEL7 (Analog Devices Inc)IC CLOCK GEN 2.5GHZ VCO 64LFCSP PDF资料下载
参数资料
| 型号： | AD9522-1BCPZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 50/84页 |
| 文件大小： | 0K |
| 描述： | IC CLOCK GEN 2.5GHZ VCO 64LFCSP |
| 标准包装： | 750 |
| 类型： | 时钟发生器，扇出配送 |
| PLL： | 是 |
| 输入： | CMOS，LVDS，LVPECL |
| 输出： | CMOS，LVDS |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:12，2:24 |
| 差分 - 输入:输出： | 是/是 |
| 频率 - 最大： | 2.65GHz |
| 除法器/乘法器： | 是/无 |
| 电源电压： | 3.135 V ~ 3.465 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-VFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 64-LFCSP-VQ（9x9） |
| 包装： | 带卷 (TR) |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页当前第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页
AD9522-1
Rev. 0 | Page 54 of 84
SPI MSB/LSB FIRST TRANSFERS
The default mode of the AD9522 serial control port is the
bidirectional mode. In bidirectional mode, both the sent data
and the readback data appear on the SDIO pin. It is also possible to
set the AD9522 to unidirectional mode (0x000[7] = 1 and
0x000[0] = 1). In unidirectional mode, the readback data
appears on the SDO pin.
The AD9522 instruction word and byte data can be MSB first
or LSB first. Any data written to 0x000 must be mirrored; the
upper four bits ([7:4]) must mirror the lower four bits ([3:0]).
This makes it irrelevant whether LSB first or MSB first is in
effect. As an example of this mirroring, see the default setting
for 0x000, which mirrors Bit 4 and Bit 3. This sets the long
instruction mode, which is the default and the only mode
supported.
A readback request reads the data that is in the serial control
port buffer area or the data that is in the active registers (see
Figure 63). Readback of the buffer or active registers is controlled
by 0x004[0].
The default for the AD9522 is MSB first.
The AD9522 uses Register Address 0x000 to Register Address 0xB03.
When LSB first is set by 0x000[1] and 0x000[6], it takes effect
immediately because it only affects the operation of the serial
control port and does not require that an update be executed.
SERIAL
CONTROL
PORT
BUF
F
E
R
RE
G
IS
T
E
RS
UPDATE
REGISTERS
WRITE REGISTER 0x232 = 0x01
TO UPDATE REGISTERS
ACT
IV
E
RE
G
IS
T
E
RS
SCLK/SCL
SDO
SDIO/SDA
CS
072
20
-03
7
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 the high address to the
low address. In MSB first mode, the serial control port internal
address generator decrements for each data byte of the multibyte
transfer cycle.
Figure 63. Relationship Between Serial Control Port Buffer Registers and
Active Registers of the AD9522
SPI INSTRUCTION WORD (16 BITS)
When LSB first is active, 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. In a multibyte transfer cycle, the internal byte
address generator of the serial port increments for each byte.
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 address (A12:A0) at which to begin the read or
write operation, see
.
For a write, the instruction word is followed by the number of
bytes of data indicated by Bits[W1:W0], see Table 42.
Table 42. Byte Transfer Count
W1
The AD9522 serial control port register address decrements
from the register address just written toward 0x000 for multibyte
I/O operations if the MSB first mode is active (default). If the
LSB first mode is active, the register address of the serial control
port increments from the address just written toward 0x232 for
multibyte I/O operations.
W0
Bytes to Transfer
0
1
0
1
2
1
Streaming mode always terminates when it reaches 0x232. Note
that unused addresses are not skipped during multibyte I/O
operations.
Table 43. Streaming Mode (No Addresses Are Skipped)
Write Mode
0
3
1
Streaming mode
Bits[A12:A0] select the address within the register map that is
written to or read from during the data transfer portion of the
communications cycle. Only Bits[A9:A0] are needed to cover
the range of the 0x232 registers used by the AD9522. Bits[A12:A10]
must always be 0b. For multibyte transfers, this address is the
starting byte address. In MSB first mode, subsequent bytes
increment the address.
Address Direction
Stop Sequence
LSB first
Increment
0x230, 0x231, 0x232, stop
MSB first
Decrement
0x001, 0x000, 0x232, stop
相关PDF资料 |
PDF描述 |
|---|---|
| AD9522-2BCPZ | IC CLOCK GEN 2.2GHZ VCO 64LFCSP |
| AD9522-3BCPZ-REEL7 | IC CLOCK GEN 2GHZ VCO 64LFCSP |
| AD9522-4BCPZ-REEL7 | IC CLOCK GEN 1.6GHZ VCO 64LFCSP |
| AD9522-5BCPZ | IC CLOCK GEN 2.4GHZ 64LFCSP |
| AD9523-1BCPZ-REEL7 | IC INTEGER-N CLCK GEN 72LFCSP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD9522-2 | 制造商:AD 制造商全称:Analog Devices 功能描述:12 LVDS/24 CMOS Output Clock Generator with Integrated 2.2 GHz VCO |
| AD9522-2/PCBZ | 功能描述:BOARD EVAL FOR AD9522-2 CLK GEN RoHS:是 类别:编程器，开发系统 >> 评估演示板和套件 系列:- 标准包装:1 系列:- 主要目的:电信，线路接口单元（LIU） 嵌入式:- 已用 IC / 零件:IDT82V2081 主要属性:T1/J1/E1 LIU 次要属性:- 已供物品:板，电源，线缆，CD 其它名称:82EBV2081 |
| AD9522-2BCPZ | 功能描述:IC CLOCK GEN 2.2GHZ VCO 64LFCSP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:- 标准包装:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路 输入:LVCMOS，LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无 频率 - 最大:240MHz 除法器/乘法器:是/无 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:带卷 (TR) |
| AD9522-2BCPZ-REEL7 | 功能描述:IC CLOCK GEN 2.2GHZ VCO 64LFCSP RoHS:是 类别:集成电路 (IC) >> 时钟/计时 - 时钟发生器，PLL，频率合成器 系列:- 标准包装:2,000 系列:- 类型:PLL 时钟发生器 PLL:带旁路 输入:LVCMOS，LVPECL 输出:LVCMOS 电路数:1 比率 - 输入:输出:2:11 差分 - 输入:输出:是/无 频率 - 最大:240MHz 除法器/乘法器:是/无 电源电压:3.135 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:带卷 (TR) |
| AD9522-3 | 制造商:AD 制造商全称:Analog Devices 功能描述:12 LVDS/24 CMOS Output Clock Generator with Integrated 2 GHz VCO |
发布紧急采购，3分钟左右您将得到回复。