- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383343 > MAX19708 (Maxim Integrated Products, Inc.) 10-Bit, 45Msps, Ultra-Low-Power Analog Front-End PDF資料下載
參數(shù)資料
| 型號： | MAX19708 |
| 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、11Msps、超低功耗模擬前端 |
| 文件頁數(shù)： | 25/37頁 |
| 文件大?。?/td> | 561K |
| 代理商： | MAX19708 |
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頁當(dāng)前第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
M
10-Bit, 45Msps, Ultra-Low-Power
Analog Front-End
______________________________________________________________________________________
25
However, power consumption is higher in this mode
because both the Tx and Rx cores are always on. To
prevent bus contention in these states, the Rx ADC out-
put buffers are tri-stated during Tx and the Tx DAC
input bus is tri-stated during Rx.
In SLOW mode, the Rx ADC core is off during Tx; like-
wise the Tx DAC and filters are turned off during Rx to
yield lower power consumption in these modes. For
example, the power in SLOW Tx mode is 49.5mW. The
power consumption during Rx is 77.1mW compared to
84.6mW power consumption in FAST mode. However,
the recovery time between states is increased. The
switching time in SLOW mode between Rx to Tx is 7μs
and Tx to Rx is 4.1μs.
External T/
R
Switching Control vs.
Serial-Interface Control
Bit E3 in the ENABLE-16 or ENABLE-8 register deter-
mines whether the device Tx-Rx mode is controlled
externally through the T/
R
input (E3 = low) or through the
SPI command (E3 = high). By default, the MAX19707 is
in the external Tx-Rx control mode. In the external control
mode, use the T/
R
input (pin 27) to switch between Rx
and Tx modes. Using the T/
R
pin provides faster switch-
ing between Rx and Tx modes. To override the external
Tx-Rx control, program the MAX19707 through the serial
interface. During SHDN, IDLE, or STBY modes, the T/
R
input is overridden. To restore external Tx-Rx control,
program bit E3 low and exit the SHDN, IDLE, or STBY
modes through the serial interface.
SPI Timing
The serial digital interface is a standard 3-wire connec-
tion compatible with SPI/QSPI/MICROWIRE/DSP inter-
faces. Set
CS
low to enable the serial data loading at
DIN or output at DOUT. Following a
CS
high-to-low tran-
sition, data is shifted synchronously, most significant bit
first, on the rising edge of the serial clock (SCLK). After
16 bits are loaded into the serial input register, data is
transferred to the latch when
CS
transitions high.
CS
must transition high for a minimum of 80ns before the
next write sequence. The SCLK can idle either high or
low between transitions. Figure 6 shows the detailed
timing diagram of the 3-wire serial interface.
QSPI is a trademark of Motorola, Inc.
Figure 6. Serial-Interface Timing Diagram
16-BIT OR 8-BIT WRITE INTO SPI (DIN)
16-BIT OR 8-BIT WRITE
INTO SPI DURING
AUX-ADC CONVERSION
10-BIT READ OUT OF AUX-ADC (DOUT) WITH
SIMULTANEOUS 16-BIT WRITE INTO SPI (DIN)
t
CHZ
LSB
BIT A0
(DIN)
BIT D1
(DIN)
LSB
MSB
BIT D10
(DIN)
LSB
A0
DOUT = TRI-STATED WHEN
AUX-ADC IS IDLE
DOUT = ACTIVE WHEN
BIT AD0 IS SET
AUX-ADC
IS BUSY
AUX-ADC
DATA READY
MSB
BIT D9
(DOUT)
LSB
BIT D0
(DOUT)
LSB
BIT D0
(HELD)
DOUT
TRI-
STATED
BIT AD0
CLEARED
D10 (16-BIT)
D2 (8-BIT)
MSB
D11 (16-BIT)
D3 (8-BIT)
MSB
BIT D11
(DIN)
t
DCS
t
CONV
t
CSD
t
CS
t
CP
t
CSS
t
CSW
t
DS
t
CH
t
CL
t
DH
t
CD
SCLK
CS
DIN
DOUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1971EEE | Fixed-Point Digital Signal Processor 532-FCBGA |
| MAX1970-MAX1972 | Dual, 180∑ Out-of-Phase, 1.4MHz, 750mA Step- Down Regulator with POR and RSI/PFO |
| MAX1970 | Dual, 180∑ Out-of-Phase, 1.4MHz, 750mA Step- Down Regulator with POR and RSI/PFO |
| MAX1970EEE | Fixed-Point Digital Signal Processor 532-FCBGA |
| MAX1971 | Fixed-Point Digital Signal Processor 532-FCBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX19708ETM | 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19708ETM+ | 功能描述:ADC / DAC多通道 11Msps CODEC/AFE 1.8/2.7-3.3V RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19708ETM+T | 功能描述:ADC / DAC多通道 11Msps CODEC/AFE 1.8/2.7-3.3V RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19708ETM-T | 功能描述:ADC / DAC多通道 RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
| MAX19708EVCMOD2 | 功能描述:ADC / DAC多通道 Maxim Evaluation System RoHS:否 制造商:Texas Instruments 轉(zhuǎn)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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-40 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。