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參數資料
| 型號： | MAX5885EGM+TD |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 3/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC 16BIT 3.3V 200MSPS 48-QFN |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 2,500 |
| 設置時間： | 11ns |
| 位數： | 16 |
| 數據接口： | 并聯(lián) |
| 轉換器數目： | 1 |
| 電壓電源： | 模擬和數字 |
| 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 |
| 供應商設備封裝： | 48-QFN-EP（7x7） |
| 包裝： | 帶卷 (TR) |
| 輸出數目和類型： | 2 電流，單極 |
| 采樣率（每秒）： | 200M |
MAX5885
3.3V, 16-Bit, 200Msps High Dynamic
Performance DAC with CMOS Inputs
______________________________________________________________________________________
11
Power-Down Operation (PD)
The MAX5885 also features an active-high power-down
mode, which allows the user to cut the DAC’s current
consumption. A single pin (PD) is used to control the
power-down mode (PD = 1) or reactivate the DAC (PD
= 0) after power-down. Enabling the power-down mode
of this 16-bit CMOS DAC allows the overall power con-
sumption to be reduced to less than 1mW. The
MAX5885 requires 10ms to wake up from power-down
and enter a fully operational state.
Applications Information
Differential Coupling Using a
Wideband RF Transformer
The differential voltage existing between IOUTP and
IOUTN can also be converted to a single-ended volt-
age using a transformer (Figure 6) or a differential
amplifier configuration. Using a differential transformer-
coupled output, in which the output power is limited to
0dBm, can optimize the dynamic performance.
However, make sure to pay close attention to the trans-
former core saturation characteristics when selecting a
transformer for the MAX5885. Transformer core satura-
tion can introduce strong 2nd-harmonic distortion,
especially at low output frequencies and high signal
amplitudes. It is also recommended to center tap the
transformer to ground. If no transformer is used, each
DAC output should be terminated to ground with a 50
resistor. Additionally, a 100
resistor should be placed
between the outputs (Figure 7).
If a single-ended unipolar output is desirable, IOUTP
should be selected as the output, with IOUTN ground-
ed. However, driving the MAX5885 single ended is not
recommended since additional noise is added (from
the ground plane) in such configurations.
The distortion performance of the DAC depends on the
load impedance. The MAX5885 is optimized for a 50
double termination. It can be used with a transformer
output as shown in Figure 7 or just one 50
resistor
from each output to ground and one 50
resistor
between the outputs. This produces a full-scale output
power of up to 0dBm depending on the output current
setting. Higher termination impedance can be used at
the cost of degraded distortion performance and
increased output noise voltage.
Adjacent Channel Leakage Power Ratio
(ACLR) Testing for CDMA- and
W-CDMA-Based Base Station
Transceiver Systems (BTS)
The transmitter sections of BTS applications serving
CDMA and W-CDMA architectures must generate carri-
ers with minimal coupling of carrier energy into the adja-
cent channels. Similar to the GSM/EDGE model (see the
Multitone Testing for GSM/EDGE Applications section), a
transmit mask (Tx mask) exists for this application. The
spread-spectrum modulation function applied to the carri-
er frequency generates a spectral response, which is uni-
form over a given bandwidth (up to 4MHz) for a W-CDMA-
modulated carrier.
B0 TO B15
CLKN
CLKP
IOUT
N
DIGITAL DATA IS LATCHED ON
THE RISING EDGE OF CLKP
OUTPUT DATA IS UPDATED ON
THE FALLING EDGE OF CLKP
N + 1
N + 2
N - 5
N - 3
N - 1
N - 2
N - 4
tSETUP
tHOLD
tPD
tCH
tCL
N - 1
Figure 5. Detailed Timing Relationship
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX5885EVKIT | 功能描述:數模轉換器- DAC Evaluation Kit for the MAX5883 MAX5884 MAX5885 RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率: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:數模轉換器- DAC 12-Bit 500Msps DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5886EGK+TD | 功能描述:數模轉換器- DAC 12-Bit 500Msps DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
| MAX5886EGK-D | 功能描述:數模轉換器- DAC RoHS:否 制造商:Texas Instruments 轉換器數量:1 DAC 輸出端數量:1 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-14 封裝:Tube |
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