- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10031 > AD6654CBCZ (Analog Devices Inc)IC ADC 14BIT W/4CH RSP 256CSPBGA PDF資料下載
參數(shù)資料
| 型號： | AD6654CBCZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 41/88頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 14BIT W/4CH RSP 256CSPBGA |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 位數(shù)： | 14 |
| 采樣率（每秒）： | 92.16M |
| 數(shù)據(jù)接口： | 串行，并聯(lián) |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 2.5W |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -25°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 256-BGA，CSPBGA |
| 供應(yīng)商設(shè)備封裝： | 256-CSPBGA（17x17） |
| 包裝： | 托盤 |
| 輸入數(shù)目和類型： | 1 個差分，單極 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁當(dāng)前第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁
AD6654
Rev. 0 | Page 46 of 88
PROGRAMMING CRCF REGISTERS FOR AN
ASYMMETRICAL FILTER
To program the CRCF registers for an asymmetrical filter:
1.
Write NTAPS – 1 in the CRCF taps register, where NTAPS
is the number of filter taps. The absolute maximum value
for NTAPS is 64 in asymmetrical filter mode.
2.
Write 0 for the CRCF coefficient offset register.
3.
Write 0 for the symmetrical filter bit in the CRCF control
register.
4.
In the CRCF start address register, write the start address
for the coefficient RAM, typically equal to the coefficient
offset register.
5.
In the CRCF stop address register, write the stop address
for the coefficient RAM, typically equal to the following:
Coefficient Offset
+ NTAPS – 1
6.
Write all coefficients in reverse order (start with last
coefficient) to the CRCF coefficient memory register. In
8 bit microport mode or serial port mode, write the lower
byte of the memory register first and then the higher byte.
In 16-bit microport mode, write the lower 16-bits of the
CRCF memory register first and then the high four bits.
After each write access to the CRCF coefficient memory
register, the internal RAM address is incremented starting
with the start address and ending with the stop address.
Note that each write or read access increments the internal
RAM address. Therefore, all coefficients should be read first
before reading them back. Also, for debugging purposes, each
RAM address can be written individually by making the start
and stop addresses the same. Therefore, to program one RAM
location, the user writes the address of the RAM location to
both the start and stop address registers, and then writes the
coefficient memory register.
PROGRAMMING CRCF REGISTERS FOR A
SYMMETRICAL FILTER
To program the CRCF registers for a symmetrical filter:
1.
Write NTAPS – 1 in the CRCF taps register, where NTAPS
is the number of filter taps. The absolute maximum value
for NTAPS is 128 in symmetrical filter mode.
2.
Write ceil(64 – NTAPS/2) for the CRCF coefficient offset
register, where the ceil function takes the closest integer
greater than or equal to the argument.
3.
Write 1 for the symmetrical filter bit in the CRCF control
register.
4.
In the CRCF start address register, write the start address
for the coefficient RAM, typically equal to the coefficient
offset register.
5.
In the CRCF stop address register, write the stop address
for the coefficient RAM, typically equal to
ceil
(NTAPS/2) – 1.
6.
Write all coefficients to the CRCF coefficient memory
register, starting with middle of the filter and working
towards the end of the filter. When coefficients are
numbered 0 to NTAPS – 1, the middle coefficient is given
by the coefficient number ceil(NTAPS/2). In 8-bit
microport mode or serial port mode, write the lower byte
of the memory register first and then the higher byte. In
16-bit microport mode, write the lower 16-bits of the
CRCF memory register first and then the high four bits.
After each write access to the CRCF coefficient memory
register, the internal RAM address is incremented starting
with the start address and ending with the stop address.
Note that each write or read access increments the internal
RAM address. Therefore, all coefficients should be read first
before reading them back. Also, for debugging purposes, each
RAM address can be written individually by making the start
and stop addresses the same. Therefore, to program one RAM
location, the user writes the address of the RAM location to
both the start and stop address registers, and then writes the
coefficient memory register.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MS27467T21A16PA | CONN PLUG 16POS STRAIGHT W/PINS |
| VE-21J-IU-F1 | CONVERTER MOD DC/DC 36V 200W |
| MS3100R28-21S | CONN RCPT 37POS WALL MNT W/SCKT |
| VI-26H-MX-F4 | CONVERTER MOD DC/DC 52V 75W |
| VE-21H-IU-F3 | CONVERTER MOD DC/DC 52V 200W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AD6654XBCZ | 制造商:Analog Devices 功能描述:14-BIT, 92.16 MSPS, 4 & 6-CHANNEL WIDEBAND IF TO BASE BAND R - Bulk |
| AD6655 | 制造商:AD 制造商全稱:Analog Devices 功能描述:IF Diversity Receiver |
| AD6655-125EBZ | 功能描述:BOARD EVAL W/AD6655 & SOFTWARE RoHS:是 類別:RF/IF 和 RFID >> RF 評估和開發(fā)套件，板 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:GPS 接收器 頻率:1575MHz 適用于相關(guān)產(chǎn)品:- 已供物品:模塊 其它名稱:SER3796 |
| AD6655-125EBZ1 | 制造商:AD 制造商全稱:Analog Devices 功能描述:IF Diversity Receiver |
| AD6655-150EBZ | 功能描述:BOARD EVAL FOR 150MSPS AD6655 RoHS:是 類別:RF/IF 和 RFID >> RF 評估和開發(fā)套件，板 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:GPS 接收器 頻率:1575MHz 適用于相關(guān)產(chǎn)品:- 已供物品:模塊 其它名稱:SER3796 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。