HBA09-001-70
HB-NEDSP1068
12
Internal Microphone to Pre-amplifier Routing
Solder the ‘
MIC
’ Jumper, note: that this has to be removed for any external microphone
use.
Pre-amplifier to DSP Routing – Solder the ‘
PRE
’ Jumper, note that this has to be
removed for any LINE level signal input to the DSP device.
DSP Level Settings
Level N0 N1 N2
1 X
X
X
2 -
X
X
3 X
-
X
4 -
-
X
5 X
X
-
6 -
X
-
7 X
-
-
8 -
-
-
X – Jumpers require fitting to obtain the level. Remove all jumpers if the module is to be
used with an external controller such as the –KBD version or via J2 (pins 1, 2, 3 and 8)
Note:
By grounding Pin 8 of J2, audio at the input to the DSP will be passed directly
through the DSP to the output without being processed by the Noise Cancellation
Algorithm.
Optional Connector – J1
For use with boards fitted with microcontrollers for push button or remote control similar
to NEDSP 1061 – KBD.
Pin Number
Use
1 ICSP
Data
2 Vdd
3 ICSP
Clock
4 MCLR/Vpp
5 Vss
