Справочник Пользователя для National Instruments NI SPEEDY-33

© National Instruments Corporation

The digital I/O signals are 3.3 V, but the inputs are 5 V tolerant. Although 
not required, pin 20 (ResetLow) can be driven low to reset the DSP; it is 
pulled high by the NI SPEEDY-33.

A set of two connectors, J4 and J6, make up the standard expansion analog 
I/O connectors, that can be used for optional daughter modules. The 
daughter modules can be used for applications requiring different A/D 
and/or D/A functionality than that provided by the standard 16-bit stereo 
CODEC normally found on the NI SPEEDY-33. 

Refer to the Connecting Accessories to the NI SPEEDY-33 section for 
information on NI and third-party daughter modules for use with the 
NI SPEEDY-33.

Refer to Figure 2-1 to connect accessories to the NI SPEEDY-33 as 
described in Table 2-1.

Do not connect the power source to the power port while the NI SPEEDY-33 

device is connected to the PC.

Table 2-1.  NI SPEEDY-33 Accessories

Microphone, CD player, MP3 player, PDA, cell phone,
or any peripheral with mini jack connector output

Audio stereo input port

Audio speakers (included with Infinity Technology Kit)
or any audio speakers or headphones with mini jack connector input

Audio stereo output port

Any 9 VDC at 500 mA power port with appropriate safety and EMC 
Certification marks, which are acceptable in the country in which the 
product is to be installed

Power port