Digilent AIO1 - Manual (Page 2)

AIO1 Reference Manual Digilent, Inc. ™
www.digilentinc.com Page 2
J2 connector pin definitions
J2 pin AIO signal Description
30 DACIN AD7303 data input
31 DACLK AD7303 clock input
29 SYNC AD7303 Sync signal
34 ADOUT AD7823 data output
33 CONVST AD7823 clock input
32 ADCLK AD7823 convert start signal
38 DIN0
35 DIN1
36 DIN2
Uncommitted digital inputs
28 DOUT0
27 DOUT1
19 DOUT2
Uncommitted digital outputs (use
caution – do not drive above 3.3V)
The breadboard connector signals are shown in the following table. The breadboard connector allows
various AIO1 signals to be connected to the breadboard using jumper wires. Signals from the BNC
connectors (J5 and J8), the RCA connectors (J6 and J9), and the audio connectors (J7 and J10) are
available, as well as signals from the op-amps and data converters.
Breadboard Connector (J11) Signal Definitions
J11 pin Signal Definition J11 pin Signal Definition
1 VCC33 Regulated voltage 21 OP2AO Op-amp 2A output
2 VU Unregulated voltage 22 OP2BO Op-amp 2B output
3 DI0 Uncommitted digital input 23 OP2BI+ Op-amp 2B input +
4 DO0 Uncommitted digital output 24 OP2BI- Op-amp 2B input -
5 DI1 Uncommitted digital input 25 OP1BI+ Op-amp 1B input +
6 DO1 Uncommitted digital output 26 OP1BI- Op-amp 1B input -
7 DI2 Uncommitted digital input 27 OP1BO Op-amp 1B output
8 DO2 Uncommitted digital output 28 OP1AO Op-amp 1A output
9 J8P BNC post connection 29 OP1AI+ Op-amp 1A input +
10 J8S BNC shield connection 30 OP1AI- Op-amp 1A input -
11 J9P RCA center connection 31 GND System ground
12 J9S RCA shield connection 32 ADCREF ADC reference voltage
13 J10P Audio tip connection 33 ADCIN+ ADC input +
14 J10S Audio ring connections 34 ADCIN- ADC input -
15 DACOUTA DAC channel A output 35 J7P Audio tip connection
16 DACOUTB DAC channel B output 36 J7S Audio ring connections
17 DACREF DAC reference voltage 37 J6P RCA center connection
18 GND System ground 38 J6S RCA shield connection
19 OP2AI+ Op-amp 2A input + 39 J5P BNC post connection
20 OP2AI- Op-amp 2A input - 40 J5S BNC shield connection