Connector J3 Pin Assignment; Pin Functions - Linear ANALOG DEVICES DC2732A-A Manual

DEMO MANUAL DC2732A
HARDWARE DESCRIPTION

CONNECTOR J3 PIN ASSIGNMENT

PIN NAME DESCRIPTION
15 GND LTC2949's GND
13 VBATM Negative BAT Input
11 NTC2+V2 Analog Input, a 100k NTC/R
9 V4 Analog Input V4
7 V6 Analog Input V6
5 V8_DO1 Analog Input V8/Digital Output DO3 (Note 4)
3 V10_DO3 Analog Input V10/Digital Output DO3 (Note 4)
1 GND LTC2949's GND
Note 1. All dual purpose pins (GPIOs) do not have their filter capacitor populated on the PCB. This was done to not interfere with the digital output function
(including the 400kHz toggling mode) of those pins. It is recommended to assemble an input filter capacitor (C14, C19, C20) to the GPIOs that are used in
analog input only mode for best noise filter performance.

PIN FUNCTIONS

PIN/
TURRET NAME DESCRIPTION
E1 BATP See J3 VBATP
E2 BATM See J3 VBATM
E3 V3 See J3 V3
E4 V4 See J3 V4
E5 V5 See J3 V5
E6 V6 See J3 V6
E7 V7 See J3 V7
E8 V8 See J3 V8_DO1
E9 D2 See J3 V9_DO2
E18 D4 Isolated, Rectified and Buffered Heart Bit Signal
V11_DO4
E19 D5 Isolated, Rectified and Buffered Heart Bit Signal
V12_DO5 (Over Current Comparator Output)
E14, E15 LGND Negative Supply Input to Onboard Isolated Flyback
Converter LT8301
Note: = Signals on the low voltage side, isolated from LTC2949
8
is Connected Onboard
REF
TURRET
E12, E13
PIN NAME DESCRIPTION
16 V LTC2949's 3V Reference Voltage Output
REF
14 VBATP Positive BAT Input
12 V3 Analog Input V3
10 V5 Analog Input V5
8 V7 Analog Input V7
6 V9_DO2 Analog Input V9/Digital Output DO2 (Note 4)
4 GND LTC2949's GND
2 ADV LTC2949's ADV
CC
PIN/
NAME DESCRIPTION
E10 VR See J3 V
EF REF
E11 ADV See J3 VBATP
CC
GND See J3 VBATP
E21 MISO LTC2949's SPI Interface (When Configured to
SPI Mode, See JP3–JP6)
E22 MOSI
E23 SCK
E24 CS
E17 HB4 Isolated Heart Bit Signal V11_DO4
E20 HB5 Isolated Heart Bit Signal V12_DO5 (Over
Current Comparator Output)
E16 V Positive Supply Input to Onboard Isolated
CC
Flyback Converter LT8301
Supply Voltage
CC
Rev. 0