MAX1329BETL+ Maxim Integrated Products, MAX1329BETL+ Datasheet - Page 64

• Manufacturer Part Number: MAX1329BETL+
• Description: IC DAS 12BIT 300KSPS 40-TQFN-EP
• Manufacturer: Maxim Integrated Products

Specifications of MAX1329BETL+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12-/16-Bit DASs with ADC, DACs, DPIOs, APIOs,
Reference, Voltage Monitors, and Temp Sensor
The circuit in Figure 27 shows the MAX1329/MAX1330
providing an interface between a µC 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 µC supply voltage (DV
eral device supply voltage (AV
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 DV
the configured APIO2, APIO3, and APIO4 outputs. The
digital output at DOUT is level-translated from AV
DV
Figure 27. Communication with a Peripheral Device Powered by the MAX1329/MAX1330
64
Communication with a Peripheral Device
DD
______________________________________________________________________________________
POWER
SUPPLY
from the configured APIO1 input.
Powered by the MAX1329/MAX1330
EXTERNAL 1.8V TO 3.6V
DV
DGND
µC
DD
OUTPUT
MOSI
MISO
SCK
C
DVDD
DD
DD
). See the APIO Control
to AV
DD
DD
DIN
) to the periph-
CS
SCLK
DOUT
and output at
DV
DD
DGND
DD
to
C1A
MAX1329
MAX1330
C
Figure 26. Digital-Interface Connections
FLY
C1B
MAX1329
MAX1330
AV
AGND
DD
DPIO1
CLKIO
SCLK
DOUT
DPIO2
RST1
RST2
DIN
CS
C
AVDD
APIO4
APIO1
APIO3
APIO2
32.768kHz
3.0V/4.0V/5.0V
SCLK
DIN
DOUT
CS
HCLKIN
OUTPUT
MOSI
MISO
RESET
INTERRUPT
INTERRUPT
XIN
XOUT
SCK
INTERRUPT
PERIPHERAL
DEVICE
AV
AGND
DD
µC