参数资料
型号: MAX1329BETL+T
厂商: Maxim Integrated Products
文件页数: 61/78页
文件大小: 0K
描述: IC DAS 12BIT 300KSPS 40-TQFN-EP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: *
MAX1329/MAX1330
12-/16-Bit DASs with ADC, DACs, DPIOs, APIOs,
Reference, Voltage Monitors, and Temp Sensor
64
______________________________________________________________________________________
Communication with a Peripheral Device
Powered by the MAX1329/MAX1330
The circuit in Figure 27 shows the MAX1329/MAX1330
providing an interface between a C and a peripheral
device powered by different supply voltages. This elimi-
nates the need for external level-translation circuitry due
to the different supply voltages. The internal charge
pump boosts the C supply voltage (DVDD) to the periph-
eral device supply voltage (AVDD). See the APIO Control
and APIO Setup registers to program APIO2–APIO4 as
DIN, SCLK, and
CS outputs to the peripheral device,
respectively, and APIO1 as the DOUT input from the
peripheral device. The digital inputs at DIN, SCLK, and
CS are level-translated from DVDD to AVDD and output at
the configured APIO2, APIO3, and APIO4 outputs. The
digital output at DOUT is level-translated from AVDD to
DVDD from the configured APIO1 input.
C
DPIO2
OUTPUT
SCK
SCLK
MOSI
DIN
MISO
DOUT
INTERRUPT
DPIO1
HCLKIN
CLKIO
32.768kHz
XOUT
XIN
INTERRUPT
MAX1329
MAX1330
RST1
CS
RST2
RESET
Figure 26. Digital-Interface Connections
C
APIO4
OUTPUT
SCK
SCLK
MOSI
DIN
MISO
DOUT
APIO3
APIO2
APIO1
PERIPHERAL
DEVICE
DIN
DOUT
SCLK
AGND
DGND
AVDD
DVDD
AGND
DGND
DVDD
AVDD
C1A
C1B
CFLY
EXTERNAL 1.8V TO 3.6V
3.0V/4.0V/5.0V
POWER
SUPPLY
CAVDD
CDVDD
MAX1329
MAX1330
CS
Figure 27. Communication with a Peripheral Device Powered by the MAX1329/MAX1330
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