參數(shù)資料
型號: MAX19705ETM+
廠商: Maxim Integrated Products
文件頁數(shù): 13/37頁
文件大?。?/td> 0K
描述: IC ANLG FRNT END 48-TQFN
產(chǎn)品培訓模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標準包裝: 43
位數(shù): 10
通道數(shù): 4
功率(瓦特): 28.2mW
電壓 - 電源,模擬: 2.7 V ~ 3.3 V
電壓 - 電源,數(shù)字: 1.8 V ~ 3.3 V
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: 管件
MAX19705
10-Bit, 7.5Msps, Ultra-Low-Power
Analog Front-End
20
______________________________________________________________________________________
Figure 5. Tx DAC System Timing Diagram
tDSQ
tDSI
Q: N - 2
I: N - 1
D0–D9
CLK
ID
QD
Q: N - 1
I: N
Q: N
I: N + 1
N - 2
N - 1
N
N - 2
N - 1
N
tDHQ
tDHI
Tx DAC Timing
Figure 5 shows the relationship between the clock, input
data, and analog outputs. Data for the I channel (ID) is
latched on the falling edge of the clock signal, and Q-
channel (QD) data is latched on the rising edge of the
clock signal. Both I and Q outputs are simultaneously
updated on the next rising edge of the clock signal.
3-Wire Serial Interface and
Operation Modes
The 3-wire serial interface controls the MAX19705 oper-
ation modes as well as the three 12-bit aux-DACs and
the 10-bit aux-ADC. Upon power-up, program the
MAX19705 to operate in the desired mode. Use the 3-
wire serial interface to program the device for shut-
down, idle, standby, Rx, Tx, aux-DAC controls, or
aux-ADC conversion. A 16-bit data register sets the
mode control as shown in Table 3. The 16-bit word is
composed of A3–A0 control bits and D11–D0 data bits.
Data is shifted in MSB first (D11) and LSB last (A0).
Tables 4, 5, and 6 show the MAX19705 operating
modes and SPI commands. The serial interface remains
active in all modes.
SPI Register Description
Program the control bits, A3–A0, in the register as shown
in Table 3 to select the operating mode. Modify A3–A0
bits to select from ENABLE-16, Aux-DAC1, Aux-DAC2,
Aux-DAC3, IOFFSET, QOFFSET, Aux-ADC, ENABLE-8,
and COMSEL modes. ENABLE-16 is the default operat-
ing mode. This mode allows for shutdown, idle, and
standby states as well as switching between FAST,
SLOW, Rx, and Tx modes. Table 4 shows the MAX19705
power-management modes. Table 5 shows the T/R pin-
controlled external Tx-Rx switching modes. Table 6
shows the SPI-controlled Tx-Rx switching modes.
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MAX19705ETM+ 功能描述:ADC / DAC多通道 7.5Msps 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19705ETM+GH7 功能描述:ADC / DAC多通道 10-Bit 7.5Msps 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19705ETM+T 功能描述:ADC / DAC多通道 7.5Msps 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19705ETM+TGH7 功能描述:ADC / DAC多通道 10-bit 7.5Msps 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40
MAX19705ETM-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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-40