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參數(shù)資料
| 型號(hào)： | MAX11358BETL+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 24/71頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS SYSTEM 16BIT 40-TQFN |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 分辨率（位）： | 16 b |
| 采樣率（每秒）： | 477 |
| 數(shù)據(jù)接口： | MICROWIRE?，QSPI?，串行，SPI? |
| 電壓電源： | 模擬和數(shù)字 |
| 電源電壓： | 1.8 V ~ 3.6 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 40-WFQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 40-TQFN-EP（6x6） |
| 包裝： | 帶卷 (TR) |
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MAX1358B
16-Bit, Data-Acquisition System with ADC, DACs,
UPIOs, RTC, Voltage Monitors, and Temp Sensor
30
______________________________________________________________________________________
Crystal Oscillator
The on-chip oscillator requires an external crystal (or
resonator) connected between 32KIN and 32KOUT
with a 32.768kHz operating frequency. This oscillator is
used for the RTC, alarm, PWM, watchdog, charge
pump, and FLL. In any crystal-based oscillator circuit,
the oscillator frequency is sensitive to the capacitive
load (CL). CL is the capacitance that the crystal needs
from the oscillator circuit and not the capacitance of the
crystal. The input capacitance across 32KIN and
32KOUT is 6pF. Choose a crystal with a 32.768kHz
oscillation frequency and a 6pF capacitive load such
as the C-002RX32-E from Epson Crystal. Using a crys-
tal with a CL that is larger than the load capacitance of
the oscillator circuit causes the oscillator to run faster
than the specified nominal frequency of the crystal or to
not start up. See Figures 9 and 10 for block diagrams
of the crystal oscillator and the CLK32K I/O.
Real-Time Clock (RTC)
The integrated RTC provides the current time information
from a 32-bit counter and subsecond counts from an
8-bit ripple counter. An internally generated reference
clock of 256Hz (derived from the 32.768kHz crystal) dri-
ves the 8-bit subsecond counter. An overflow of the 8-bit
subsecond counter inputs a 1Hz clock to increment the
32-bit second counter. The RTC 32-bit second counter is
translatable to calendar format with firmware. All 40 bits
(32-bit second counter and 8-bit subsecond counter)
must be clocked in or out for valid data. The RTC and
the 32.768kHz crystal oscillator consume less than 1A
when the rest of the device is powered down.
Time-of-Day Alarm
Program the AL_DAY register with a 20-bit value, which
corresponds to a time 1s to 12 days later than the cur-
rent time with a 1s resolution. The alarm status bit, ALD,
asserts when the 20 bits of the AL_DAY register match-
es the 20 LSBs of the 32-bit second counter. The ADE
bit automatically clears when the time-of-day alarm
trips. The time-of-day alarm causes the device to exit
sleep mode.
CMP
ANALOG
2:1 MUX
CONTROL
LOGIC
RESET
DVDD
1.25V
1.8VTH
2.0VTH
LDVD
LSDE
HYSE POR
RSTE
DVDD (1.8V) VOLTAGE MONITOR
WDTO
Figure 7. DVDD Voltage-Supervisor Block Diagram
CMP
CPOUT
1.25V
2.7VTH
LCPD
CPDE
CPOUT (2.7V) VOLTAGE MONITOR
Figure 8. CPOUT Voltage-Supervisor Block Diagram
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX11359A | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor |
| MAX11359A_12 | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor |
| MAX11359ACTL+ | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:16-Bit Data-Acquisition System with ADC, DAC, UPIOs, RTC, Voltage Monitors, and Temp Sensor |
| MAX11359AETL | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX11359AETL+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16-Bit DAS w/ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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