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參數(shù)資料
| 型號： | AD9613BCPZRL7-170 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 25/36頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT SRL 170MSPS 64LFCSP |
| 標(biāo)準(zhǔn)包裝： | 750 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 170M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 功率耗散（最大）： | 738mW |
| 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： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 2 個差分，雙極 |
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Data Sheet
AD9613
Rev. C | Page 31 of 36
MEMORY MAP
READING THE MEMORY MAP REGISTER TABLE
Each row in the memory map register table has eight bit locations.
The memory map is roughly divided into four sections: the chip
configuration registers (Address 0x00 to Address 0x02); the
channel index and transfer registers (Address 0x05 and
Address 0xFF); and the ADC functions registers, including
setup, control, and test (Address 0x08 to Address 0x3A).
The memory map register table (see Table 14) documents the
default hexadecimal value for each hexadecimal address shown.
The column with the heading Bit 7 (MSB) is the start of the default
hexadecimal value given. For example, Address 0x14, the output
mode register, has a hexadecimal default value of 0x05. This
means that Bit 0 = 1 and Bit 2 = 1, and the remaining bits are
0s. This setting is the default output format value, which is twos
complement. For more information on this function and others,
see the AN-877 Application Note, Interfacing to High Speed ADCs
via SPI. This document details the functions controlled by
Register 0x00 to Register 0x20. The remaining register, Register
0x3A, is documented in the Memory Map Register Description
section.
Open and Reserved Locations
All address and bit locations that are not included in Table 14
are not currently supported for this device. Unused bits of a
valid address location should be written with 0s. Writing to these
locations is required only when part of an address location is
open (for example, Address 0x18). If the entire address location
is open (for example, Address 0x13), this address location should
not be written.
Default Values
After the AD9613 is reset, critical registers are loaded with
default values. The default values for the registers are given in
the memory map register table (see Table 14).
Logic Levels
An explanation of logic level terminology follows:
“Bit is set” is synonymous with “bit is set to Logic 1” or
“writing Logic 1 for the bit.”
“Clear a bit” is synonymous with “bit is set to Logic 0” or
“writing Logic 0 for the bit.”
Transfer Register Map
Address 0x08 to Address 0x20 and Address 0x3A are shadowed.
Writes to these addresses do not affect part operation until a
transfer command is issued by writing 0x01 to Address 0xFF,
setting the transfer bit. This allows these registers to be updated
internally and simultaneously when the transfer bit is set. The
internal update takes place when the transfer bit is set and the
bit autoclears.
Channel Specific Registers
Some channel setup functions, such as the signal monitor
thresholds, can be programmed to a different value for each
channel. In these cases, channel address locations are internally
duplicated for each channel. These registers and bits are designated
in Table 14 as local. These local registers and bits can be accessed
by setting the appropriate Channel A or Channel B bits in Register
0x05. If both bits are set, the subsequent write affects the registers
of both channels. In a read cycle, only Channel A or Channel B
should be set to read one of the two registers. If both bits are set
during an SPI read cycle, the part returns the value for Channel A.
Registers and bits designated as global in Table 14 affect the entire
part and the channel features for which independent settings are
not allowed between channels. The settings in Register 0x05 do
not affect the global registers and bits.
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