參數(shù)資料
型號(hào): AD9253BCPZ-125
廠(chǎng)商: Analog Devices Inc
文件頁(yè)數(shù): 28/40頁(yè)
文件大?。?/td> 0K
描述: IC ADC 14BIT SRL 125MSPS 48LFCSP
標(biāo)準(zhǔn)包裝: 1
位數(shù): 14
采樣率(每秒): 125M
數(shù)據(jù)接口: LVDS,串行,SPI?
轉(zhuǎn)換器數(shù)目: 4
功率耗散(最大): 540mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 48-WFQFN 裸露焊盤(pán),CSP
供應(yīng)商設(shè)備封裝: 48-LFCSP-WQ(7x7)
包裝: 托盤(pán)
輸入數(shù)目和類(lèi)型: 4 個(gè)差分,雙極
AD9253
Data Sheet
Rev. 0 | Page 34 of 40
MEMORY MAP REGISTER TABLE
The AD9253 uses a 3-wire interface and 16-bit addressing and,
therefore, Bit 0 and Bit 7 in Register 0x00 are set to 0, and Bit 3
and Bit 4 are set to 1. When Bit 5 in Register 0x00 is set high,
the SPI enters a soft reset, where all of the user registers revert
to their default values and Bit 2 is automatically cleared.
Table 17.
ADDR
(Hex)
Parameter Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
(Hex)
Comments
Chip Configuration Registers
0x00
SPI port
configuration
0 =
SDO
active
LSB first
Soft
reset
1 =
16-bit
address
1 =
16-bit
address
Soft
reset
LSB first
0 = SDO
active
0x18
The nibbles
are mirrored
so that LSB-
first or MSB-
first mode
registers
correctly. The
default for
ADCs is 16-bit
mode.
0x01
Chip ID (global)
8-bit chip ID, Bits[7:0]
AD9253 0x8F = quad 14-bit 80 MSPS/105 MSPS/125 MSPS serial LVDS
0x8F
Unique chip
ID used to
differentiate
devices; read
only.
0x02
Chip grade
(global)
Open
Speed grade ID[6:4]
100 = 80 MSPS
101 = 105 MSPS
110 = 125 MSPS
Open
Unique
speed grade
ID used to
differentiate
graded
devices; read
only.
Device Index and Transfer Registers
0x05
Device index
Open
Clock
Channel
DCO
Clock
Channel
FCO
Data
Channel
D
Data
Channel
C
Data
Channel
B
Data
Channel
A
0x3F
Bits are set to
determine
which device
on chip
receives the
next write
command.
The default is
all devices on
chip.
0xFF
Transfer
Open
Initiate
override
0x00
Set resolution/
sample rate
override.
Global ADC Function Registers
0x08
Power modes
(global)
Open
External
power-
down
pin
function
0 = full
power-
down
1 =
standby
Open
Power mode
00 = chip run
01 = full power-
down
10 = standby
11 = reset
0x00
Determines
various
generic
modes of chip
operation.
0x09
Clock (global)
Open
Duty
cycle
stabilize
0 = off
1 = on
0x01
Turns duty
cycle stabilizer
on or off.
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