- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄10835 > MAX5885EGM+TD (Maxim Integrated Products)IC DAC 16BIT 3.3V 200MSPS 48-QFN PDF資料下載
參數(shù)資料
| 型號： | MAX5885EGM+TD |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 4/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 16BIT 3.3V 200MSPS 48-QFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 設(shè)置時間： | 11ns |
| 位數(shù)： | 16 |
| 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）： | 135mW |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 48-QFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 48-QFN-EP（7x7） |
| 包裝： | 帶卷 (TR) |
| 輸出數(shù)目和類型： | 2 電流，單極 |
| 采樣率（每秒）： | 200M |
MAX5885
3.3V, 16-Bit, 200Msps High Dynamic
Performance DAC with CMOS Inputs
12
______________________________________________________________________________________
A dominant specification is ACLR, a parameter which
reflects the ratio of the power in the desired carrier
band to the power in an adjacent carrier band. The
specification covers the first two adjacent bands, and is
measured on both sides of the desired carrier.
According to the transmit mask for CDMA and W-CDMA
architectures, the power ratio of the integrated carrier
channel energy to the integrated adjacent channel
energy must be >45dB for the first adjacent carrier slot
(ACLR 1) and >50dB for the second adjacent carrier
slot (ACLR 2). This specification applies to the output of
the entire transmitter signal chain. The requirement for
only the DAC block of the transmitter must be tighter,
with a typical margin of >15dB, requiring the DAC’s
ACLR 1 to be better than 60dB.
Adjacent channel leakage is caused by a single
spread-spectrum carrier, which generates intermodula-
tion (IM) products between the frequency components
located within the carrier band. The energy at one end
of the carrier band generates IM products with the
energy from the opposite end of the carrier band. For
single-carrier W-CDMA modulation, these IMD products
are spread 3.84MHz over the adjacent sideband. Four
contiguous W-CDMA carriers spread their IM products
over a bandwidth of 20MHz on either side of the 20MHz
total carrier bandwidth. In this four-carrier scenario,
only the energy in the first adjacent 3.84MHz sideband
is considered for ACLR 1. To measure ACLR, drive the
converter with a W-CDMA pattern. Make sure that the
signal is backed off by the peak-to-average ratio, such
that the DAC is not clipping the signal. ACLR can then
be measured with the ACLR measurement function built
into your spectrum analyzer.
Figure 8 shows the ACLR performance for a single
W-CDMA carrier (fCLK = 184.32MHz, fOUT = 30.72MHz)
applied to the MAX5885 (including measurement system
limitations*).
Figure 9 illustrates the ACLR test results for the
MAX5885 with a four-carrier W-CDMA signal at an out-
put frequency of 30.72MHz and a sampling frequency
of 184.32MHz. Considerable care must be taken to
ensure accurate measurement of this parameter.
MAX5885
T2, 1:1
T1, 1:1
VOUT, SINGLE ENDED
WIDEBAND RF TRANSFORMER T2
PERFORMS THE DIFFERENTIAL TO
SINGLE-ENDED CONVERSION.
50
100
50
IOUTP
IOUTN
B0–B15
16
AVDD
DVDD
VCLK
AGND
DGND
CLKGND
Figure 6. Differential to Single-Ended Conversion Using a Wideband RF Transformer
MAX5885
50
100
50
IOUTP
IOUTN
B0–B15
16
AVDD
DVDD
VCLK
AGND
DGND
CLKGND
OUTP
OUTN
Figure 7. MAX5885 Differential Output Configuration
*Note that due to their own IM effects and noise limitations, spectrum analyzers introduce ACLR errors, which can falsify the measure-
ment. For a single-carrier ACLR measurement greater than 70dB, these measurement limitations are significant, becoming even more
restricting for multicarrier measurement. Before attempting an ACLR measurement, it is recommended consulting application notes pro-
vided by major spectrum analyzer manufacturers that provide useful tips on how to use their instruments for such tests.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ISL59452IRZ | IC AMP TRIPLE MUX 250MHZ 32-QFN |
| VI-25R-IW-S | CONVERTER MOD DC/DC 7.5V 100W |
| MAX5893EGK+TD | IC DAC 12BIT DUAL 500MSPS 68-QFN |
| VI-25P-IW-S | CONVERTER MOD DC/DC 13.8V 100W |
| MX7537JP+T | IC DAC 12BIT DL MULT 28-PLCC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX5885EVKIT | 功能描述:數(shù)模轉(zhuǎn)換器- DAC Evaluation Kit for the MAX5883 MAX5884 MAX5885 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5886EGK | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX5886EGK+D | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 500Msps DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5886EGK+TD | 功能描述:數(shù)模轉(zhuǎn)換器- DAC 12-Bit 500Msps DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5886EGK-D | 功能描述:數(shù)模轉(zhuǎn)換器- DAC RoHS:否 制造商:Texas Instruments 轉(zhuǎn)換器數(shù)量:1 DAC 輸出端數(shù)量:1 轉(zhuǎn)換速率:2 MSPs 分辨率:16 bit 接口類型:QSPI, SPI, Serial (3-Wire, Microwire) 穩(wěn)定時間:1 us 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。