isd3900 Winbond Electronics Corp America, isd3900 Datasheet - Page 10

• Manufacturer Part Number: isd3900
• Description: Multi-message Record/playback Devices With Digital Audio Interface
• Manufacturer: Winbond Electronics Corp America

Number
Pin
36
37
38
39
40
41
42
43
44
45
46
47
48
Pin Name
XTALIN
NC
GPIO0
NC
NC
AUDOUT
AUXOUT
V
V
ANAOUT/
MIC-
ANAIN/
MIC+
AUXIN
NC
CCA
SSA
I/O
I/O
O
O
O
I
I
I
I
I
Function
The CLK_CFG register determines one of the following three
configurations: (1) A crystal or resonator connected between the
XTALOUT and XTALIN pins. (2) A resistor connected to GND as a
reference current to the internal oscillator and left the XTALOUT
unconnected. (3) An external clock input to the device and left the
XTALOUT unconnected.
This pin should be left unconnected.
GPIO
This pin should be left unconnected.
This pin should be left unconnected.
Audio Out. This pin can be either a voltage output or a current output
configured by the internal registers via SPI command.
If AUDOUT is not used, this pin should be left unconnected.
Aux Out. This pin is an analog voltage output.
If AUXOUT is not used, this pin should be left unconnected.
Analog power supply pin.
Analog ground pin.
Variable gain analog output with the gain set by feedback resistance to
ANAIN.
Or, can be configured as MIC- which, together with MIC+, provides a
microphone differential input.
If ANAIN/ANAOUT is not used, this pin should be left unconnected.
Variable gain analog input.
Or, can be configured as MIC+ which, together with MIC-, provides a
microphone differential input.
If ANAIN/ANAOUT is not used, this pin should be left unconnected.
Auxiliary input with the gain set by SPI command
If AUXIN is not used, this pin should be left unconnected.
This pin should be left unconnected.
- 10 -
Publication Release Date: July 1, 2010
ISD3900
Revision 1.0