參數(shù)資料
型號(hào): DAC5674IPHPG4
廠商: Texas Instruments
文件頁數(shù): 6/39頁
文件大?。?/td> 0K
描述: IC DAC 14BIT 400MSPS 48-HTQFP
產(chǎn)品培訓(xùn)模塊: Data Converter Basics
標(biāo)準(zhǔn)包裝: 250
系列: CommsDAC™
設(shè)置時(shí)間: 20ns
位數(shù): 14
數(shù)據(jù)接口: 并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 模擬和數(shù)字
功率耗散(最大): 550mW
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-TQFP 裸露焊盤
供應(yīng)商設(shè)備封裝: 48-HTQFP(7x7)
包裝: 托盤
輸出數(shù)目和類型: 2 電流,單極
采樣率(每秒): 400M
配用: 296-30860-ND - EVAL MODULE FOR DAC5674
DAC5674
SLWS148A SEPTEMBER 2003 REVISED OCTOBER 2005
www.ti.com
14
Table 1. Interpolation Filters Configuration
FILTER 1
CONFIGURATION
FILTER 2
CONFIGURATION
IF OUTPUT RANGE 1
(FIRST NYQUIST ZONE)
IF OUTPUT RANGE 2
(SECOND NYQUIST ZONE)
CONFIGURATION
FREQUENCY
SINX/X ATT. [dB]
FREQUENCY
SINX/X ATT. [dB]
Low pass
0
…0.4Fdata
0
…0.14
3.6
…4Fdata
19.2
…∞
Low pass
High pass
1.6
…2Fdata
2.42
…3.92
2
…2.4Fdata
3.92
…5.94
High pass
Low pass
0.6
…0.8Fdata
0.32
…0.58
3.2
…3.4Fdata
12.6
…15.4
High pass
1.2
…1.4Fdata
1.33
…1.83
2.6
…2.8Fdata
7.20
…8.69
Table 2. Interpolation Filters Configuration: Example Frequencies GSM
FILTER 1
FILTER 2
IF OUTPUT RANGE 1
(FIRST NYQUIST ZONE)
IF OUTPUT RANGE 2
(SECOND NYQUIST ZONE)
FILTER 1
CONFIGURATION
FILTER 2
CONFIGURATION
IF FREQUENCY [MHz]
CONFIGURATION
Fdata = 52 MSPS
Fdata = 78 MSPS
Fdata = 52 MSPS
Fdata = 78 MSPS
Low pass
0
…20.8
0
…31.2
187.2
…208
280.8
…312
Low pass
High pass
83.2
…108
124.8
…156
104
…124.8
156
…187.2
High pass
Low pass
31.2
…41.6
46.8
…62.4
166.4
…176.8
249.6
…265.2
High pass
62.4
…72.8
93.6
…109.2
135.2
…145.6
202.8
…218.4
Table 3. Interpolation Filters Configuration: Example Frequencies W-CDMA, IF = Fdata/4, FDATA = 61.44
MSPS: Fupdate = 245.76 MSPS
FILTER 1
CONFIGURATION
FILTER 2
CONFIGURATION
IF FREQUENCY [MHZ]
(FIRST NYQUIST ZONE)
IF FREQUENCY [MHZ]
(SECOND NYQUIST ZONE)
CONFIGURATION
IF CENTER [MHz]
SINX/X ATT. [dB]
IF CENTER [MHz]
SINX/X ATT. [dB]
Low pass
15.36
0.05
230.4
23.6
Low pass
High pass
107.52
2.93
138.24
5.11
High pass
Low pass
46.08
0.51
199.68
13.2
High pass
76.8
1.44
168.96
8.29
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