參數(shù)資料
型號(hào)： MAX19708ETM+T
廠商： Maxim Integrated Products
文件頁(yè)數(shù)： 18/37頁(yè)
文件大?。?/td> 0K
描述： IC ANLG FRNT END 48-TQFN
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 2,500
位數(shù)： 10
通道數(shù)： 4
功率（瓦特）： 36.9mW
電壓 - 電源，模擬： 3V
電壓 - 電源，數(shù)字： 3V
封裝/外殼： 48-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 48-TQFN-EP（7x7）
包裝： 帶卷 (TR)
MAX19708
10-Bit, 11Msps, Ultra-Low-Power
Analog Front-End
______________________________________________________________________________________
25
in this mode because both the Tx and Rx cores are
always on. To prevent bus contention in these states,
the Rx ADC output 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 35.1mW. The
power consumption during Rx is 24mW compared to
41.1mW power consumption in FAST mode. However,
the recovery time between states is increased. The
switching time in SLOW mode between Rx to Tx is 7s
and Tx to Rx is 8.1s.
External T/R
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 MAX19708 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 MAX19708 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 (
CS, SCLK, DIN) compatible with SPI/QSPI/
MICROWIRE/DSP interfaces. Set
CS low to enable the
serial data loading at DIN or output at DOUT. Following a
CS high-to-low transition, 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 7 shows
the detailed timing diagram of the 3-wire serial interface.
Figure 7. 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)
tCHZ
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)
tDCS
tCONV
tCSD
tCS
tCP
tCSS
tCSW
tDS
tCH
tCL
tDH
tCD
SCLK
CS
DIN
DOUT
QSPI is a trademark of Motorola, Inc.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
MAX19708EVCMODU 功能描述:ADC / DAC多通道 10-bit 11Msps Ultra-Low-Power Analog Front-End 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
MAX19708EVKIT 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 Evaluation Kit for the MAX19705 MAX19706 MAX19707 MAX19708 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
MAX1970EEE 功能描述:直流/直流開關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX1970EEE+ 功能描述:直流/直流開關(guān)調(diào)節(jié)器 Dual 180 Out 1.4MHz 750mA Step-Down RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
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