Ntc ( Jp12 ); A 2 B Reg ( Jp13 ); A 2 B Voltage ( Jp14 ) - Analog Devices EVAL-AD2428WD1BZ Manual

Jumpers
The ADP621 CLK jumper is used to select the routing of the ADP621 CLK signal. The default setting for the
jumper is pin 1.
Jumper
3 and 4
1 and 3
3 and 5

NTC ( JP12 )

Input to the Thermistor Monitoring Circuits. The NTC pin connects to a battery's thermistor to determine if the
battery is too hot or too cold to charge. If the battery's temperature is out of range, charging is paused until it re-
enters the valid range. A low drift bias resistor is required from VIN to NTC and a thermistor is required from NTC
to ground. If the NTC function is not desired, the NTC pin should be grounded This jumper is installed by default.
2
A B REG ( JP13 )
2
The A B REG jumper is used to enable or disable the regulator for the AD2428 transceiver. The default setting for
the jumper is not installed.
Jumper
Installed
Not Installed
2
A B Voltage ( JP14 )
2
The A B Voltage jumper is used to select the voltage for the AD2428 transceiver. The default setting for the jumper
is installed.
Jumper
Installed
Not Installed
ADAU1761 MCLK Select ( JP19 )
The ADAU1761 MCLK Select jumper is used to select the MCLK source for the ADAU1761 SigmaDSP, and the
default position is 1 and 2. This jumper is available on Rev 1.1 boards and later, and earlier versions may label this
jumper as ADAU1961 MCLK Select. As the ADAU1761 is pin-compatible with the ADAU1961, the footprint and
silkscreen are identical in this regard.
3–18
Clock Routing
AD2428_BCLK
AD2428_IO7
ADAU1452_BCLK_OUT0
Clock Routing
Regulator Disabled
Regulator Enabled
Clock Routing
7V
8V
EVAL-AD2428WD1BZ A
2
B Evaluation Board Manual