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| 型號： | AD9974BBCZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 35/52頁 |
| 文件大小： | 0K |
| 描述： | IC CCDSP DUAL 14BIT 100-CSPBGA |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | CCD 信號處理器，14 位 |
| 輸入類型： | 邏輯 |
| 輸出類型： | 邏輯 |
| 接口： | 3 線串口 |
| 電流 - 電源： | 55mA |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 100-LFBGA，CSPBGA |
| 供應(yīng)商設(shè)備封裝： | 100-CSBGA（9x9） |
| 包裝： | 托盤 |
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AD9974
Rev. A | Page 40 of 52
LAYOUT OF INTERNAL REGISTERS
The AD9974 address space is divided into two register areas, as
shown in Figure 54. In the first area, Address 0x00 to Address 0x72
contain the registers for the AFE, miscellaneous functions, VD/HD
parameters, I/O control, mode control, timing core, and update
control functions. The second area of the address space, beginning
at Address 0x800, consists of the registers for the H-pattern groups
and fields. This is a configurable set of register spaces; the user
can decide how many H-patterns and fields are used in a particular
design. The AD9974 supports the use of up to 32 H-patterns.
Register 0x28 specifies the total number of H-pattern groups.
The starting address for the H-pattern groups is always 0x800.
The starting address for the field registers is determined by the
number of H-pattern groups. Each H-pattern group and field
occupies 16 register addresses.
The starting address for the field registers is based on the
number of H-pattern groups and is equal to 0x800 plus the
number of H-pattern groups times 16.
It is important to note that the H-pattern and field registers
must always occupy a continuous block of addresses.
Figure 55 shows an example when three H-pattern groups and
two fields are used. The starting address for the H-pattern groups
is always 0x800. Because HPATNUM is 3, the H-pattern groups
occupy 48 address locations (that is, 16 registers × 3 H-pattern
groups). The starting address of the field registers for this example
is 0x830 (that is, 0x800 + 48 (decimal)). Note that the decimal value
must be converted to a hex number before adding it to 0x800.
The AD9974 address space contains many unused addresses. Any
undefined addresses between Address 0x00 and Address 0x7FF
should not be written to; otherwise, the AD9974 may operate
incorrectly. Continuous register writes should be performed
carefully so that undefined registers are not written to.
FIXED REGISTER AREA
AFE REGISTERS
MISCELLANEOUS FUNCTION REGISTERS
VD/HD REGISTERS
I/O REGISTERS
MODE CONTROL REGISTERS
TIMING CORE REGISTERS
TEST REGISTERS
UPDATE CONTROL REGISTERS
INVALID—DO NOT ACCESS
CONFIGURABLE REGISTER AREA
H-PATTERN GROUPS
FIELDS
ADDR 0x000
ADDR 0x7FF
HPAT START 0x800
FIELD START
MAX 0xFFF
NOTES
1. THE H-PATTERN AND FIELD REGISTERS MUST ALWAYS OCCUPY A CONTINUOUS BLOCK OF ADDRESSES.
05
95
5-
0
54
Figure 54. Layout of AD9974 Registers
2 FIELDS
(16 × 2 = 32 REGISTERS)
3 H-PATTERN GROUPS
(16 × 3 = 48 REGISTERS)
UNUSED MEMORY
ADDR 0x800
ADDR 0x830
ADDR 0x850
MAX 0xFFF
05
95
5-
0
55
Figure 55. Example Register Configuration
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| AD9974BBCZRL | 功能描述:IC CCDSP DUAL 14BIT 100-CSPBGA RoHS:是 類別:集成電路 (IC) >> 接口 - 傳感器和探測器接口 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:74 系列:- 類型:觸控式傳感器 輸入類型:數(shù)字 輸出類型:數(shù)字 接口:JTAG，串行 電流 - 電源:100µA 安裝類型:表面貼裝 封裝/外殼:20-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:20-TSSOP 包裝:管件 |
| AD9975 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Broadband Modem Mixed-Signal Front End |
| AD9975ABST | 制造商:AD 制造商全稱:Analog Devices 功能描述:Broadband Modem Mixed-Signal Front End |
| AD9975ABSTEB | 制造商:AD 制造商全稱:Analog Devices 功能描述:Broadband Modem Mixed-Signal Front End |
| AD9975ABSTRL | 制造商:AD 制造商全稱:Analog Devices 功能描述:Broadband Modem Mixed-Signal Front End |
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