JN5139/001,515 NXP Semiconductors, JN5139/001,515 Datasheet - Page 46

• Manufacturer Part Number: JN5139/001,515
• Description: IC MCU 32BIT 56QFN
• Manufacturer: NXP Semiconductors

Specifications of JN5139/001,515

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

15 Analogue Peripherals
The JN5139 contains a number of analogue peripherals allowing the direct connection of a wide range of external
sensors, switches and actuators.
In order to provide good isolation from digital noise, the analogue peripherals are powered by a separate regulator,
supplied from the analogue supply VDD1 and referenced to analogue ground VSSA.
A common reference Vref for the ADC and DAC can be selected between an internal bandgap reference or an
external voltage reference supplied to the VREF pin. Gain settings for the ADC and DAC are independent of each
other.
The ADC and DAC are clocked from a common clock source derived from the 16MHz clock.
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COMP1M
COMP2M
COMP1P
COMP2P
ADC2
ADC4
DAC2
ADC1
ADC3
DAC1
VREF
Boundary
Chip
Sensor
Temp
Figure 38: On-chip Analogue Peripherals
JN-DS-JN5139 1v9
ADC
Comparator 1
Comparator 2
DAC1
DAC2
Vref
Processor Bus
Supply Voltage
(VDD1)
Internal Reference
Vref select
© NXP Laboratories UK 2010