參數(shù)資料
型號： AD9269BCPZ-20
廠商： Analog Devices Inc
文件頁數(shù)： 26/40頁
文件大?。?/td> 0K
描述： IC ADC 16BIT SER 2CH 64LFCSP
特色產(chǎn)品： AD9269/65 Low-Power, High-Speed 16-Bit, 1.8V ADCs
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 16
采樣率（每秒）： 20M
數(shù)據(jù)接口： 串行，SPI?
轉(zhuǎn)換器數(shù)目： 2
功率耗散（最大）： 102mW
電壓電源： 模擬和數(shù)字
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
輸入數(shù)目和類型： 4 個(gè)單端，單極；4 個(gè)單端，雙極；2 個(gè)差分，單極；2 個(gè)差分，雙極
AD9269
Rev. 0 | Page 32 of 40
MEMORY MAP REGISTER TABLE
All address and bit locations that are not included in Table 17 are not currently supported for this device.
Table 17.
Addr.
(Hex)
Register
Name
(MSB)
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
(LSB)
Bit 0
Default
Value
(Hex)
Comments
Chip configuration registers
0x00
SPI port
configuration
(global)
0
LSB
first
Soft reset
1
Soft
reset
LSB first
0
0x18
The nibbles are
mirrored so that
LSB- or MSB-first
mode registers
correctly, regard-
less of shift mode
0x01
Chip ID (global)
8-bit chip ID, Bits[7:0]
AD9269 = 0x75
0x75
Unique chip ID
used to differ-
entiate devices;
read only
0x02
Chip grade (global)
Open
Speed grade ID, Bits[6:4]
20 MSPS = 000
40 MSPS = 001
65 MSPS = 010
80 MSPS = 011
Open
N/A
Unique speed
grade ID used to
differentiate
devices; read
only
Device index and transfer registers
0x05
Open
ADC B
default
ADC A
default
0x03
Bits are set to
determine which
device on chip
receives the next
write command;
the default is all
devices on chip
0xFF
Transfer
Open
Transfer
0x00
Synchronously
transfers data
from the master
shift register to
the slave
Program registers (may or may not be indexed by device index)
0x08
External
power-
down
enable
(local)
External pin function
0x00 =
full power-down
0x01 = standby
(local)
Open
00 = chip run
01 = full power-
down
10 = standby
11 = chip-wide
digital reset
(local)
0x80
Determines
various generic
modes of chip
operation
0x09
Clock (global)
Open
Duty
cycle
stabilize
0x00
0x0B
Clock divider
(global)
Open
Clock divider, Bits[2:0]
Clock divide ratio
000 = divide by 1
001 = divide by 2
010 = divide by 3
011 = divide by 4
100 = divide by 5
101 = divide by 6
0x00
The divide ratio is
the value plus 1
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