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參數資料
| 型號： | MAX19707 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 10-Bit, 45Msps, Ultra-Low-Power Analog Front-End |
| 中文描述： | 10位、45Msps、超低功耗模擬前端 |
| 文件頁數： | 15/37頁 |
| 文件大?。?/td> | 561K |
| 代理商： | MAX19707 |
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M
10-Bit, 45Msps, Ultra-Low-Power
Analog Front-End
______________________________________________________________________________________
15
PIN
10
NAME
QAP
FUNCTION
Channel-QA Positive Analog Input. For single-ended operation, connect signal source to QAP.
13–18, 21–24
D0–D9
Digital I/O. Outputs for receive ADC in Rx mode. Inputs for transmit DAC in Tx mode. D9 is the most
significant bit (MSB) and D0 is the least significant bit (LSB).
19
OGND
Output-Driver Ground
20
OV
DD
Output-Driver Power Supply. Supply range from 1.8V to V
DD
. Bypass OV
DD
to OGND with a
combination of a 2.2μF capacitor in parallel with a 0.1μF capacitor.
25
26
SHDN
DOUT
Active-Low Shutdown Input. Apply logic-low to place the MAX19707 in shutdown.
Aux-ADC Digital Output
27
T/
R
Transmit- or Receive-Mode Select Input. T/
R
logic-low input sets the device in receive mode. A
logic-high input sets the device in transmit mode.
28
29
30
34
35
36
37
38
DIN
SCLK
CS
ADC2
ADC1
DAC3
DAC2
DAC1
IDN, IDP
QDN, QDP
REFIN
COM
3-Wire Serial-Interface Data Input. Data is latched on the rising edge of the SCLK.
3-Wire Serial-Interface Clock Input
3-Wire Serial-Interface Chip-Select Input. Logic-low enables the serial interface.
Analog Input for Auxiliary ADC
Analog Input for Auxiliary ADC
Analog Output for Auxiliary DAC3
Analog Output for Auxiliary DAC2
Analog Output for Auxiliary DAC1 (AFC DAC, V
OUT
= 1.1V During Power-Up)
DAC Channel-ID Differential Voltage Output
DAC Channel-QD Differential Voltage Output
Reference Input. Connect to V
DD
for internal reference. Bypass to GND with a 0.1μF capacitor.
Common-Mode Voltage I/O. Bypass COM to GND with a 0.33μF capacitor.
Negative Reference I/O. Rx ADC conversion range is ±(V
REFP
- V
REFN
). Bypass REFN to GND with a
0.33μF capacitor.
Exposed Paddle. Exposed paddle is internally connected to GND. Connect EP to the GND plane.
40, 41
44, 45
46
47
48
REFN
—
EP
Pin Description (continued)
MICROWIRE is a trademark of National Semiconductor Corp.
Detailed Description
The MAX19707 integrates a dual, 10-bit Rx ADC and a
dual, 10-bit Tx DAC while providing ultra-low power
and high dynamic performance at a 45Msps conver-
sion rate. The Rx ADC analog input amplifiers are fully
differential and accept 1.024V
P-P
full-scale signals. The
Tx DAC analog outputs are fully differential with
±400mV full-scale output, selectable common-mode
DC level, and adjustable I/Q offset trim.
The MAX19707 integrates three 12-bit auxiliary DAC
(aux-DAC) channels and a 10-bit, 333ksps auxiliary
ADC (aux-ADC) with 4:1 input multiplexer. The aux-DAC
channels feature 1μs settling time for fast automatic
gain-control (AGC), variable-gain amplifier (VGA), and
automatic frequency-control (AFC) level setting. The
aux-ADC features data averaging to reduce processor
overhead and a selectable clock-divider to program the
conversion rate.
The MAX19707 includes a 3-wire serial interface to
control operating modes and power management. The
serial interface is SPI and MICROWIRE compatible.
The MAX19707 serial interface selects shutdown, idle,
standby, transmit (Tx), and receive (Rx) modes, as well
as controls aux-DAC and aux-ADC channels.
The Rx ADC and Tx DAC share a common digital I/O to
reduce the digital interface to a single, 10-bit parallel
multiplexed bus. The 10-bit digital bus operates on a
single 1.8V to 3.3V supply.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX19707ETM | 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19707ETM+ | 功能描述:ADC / DAC多通道 45Msps CODEC/AFE 1.8/2.7-3.3V RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19707ETM+T | 功能描述:ADC / DAC多通道 45Msps CODEC/AFE 1.8/2.7-3.3V RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19707ETM-T | 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19707EVCMOD2 | 功能描述:ADC / DAC多通道 Evaluation System for the MAX19707 RoHS:否 制造商:Texas Instruments 轉換速率: 分辨率:8 bit 接口類型:SPI 電壓參考: 電源電壓-最大:3.6 V 電源電壓-最小:2 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40 |
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