Component Specifications
LX-DSP System Processor
Performs matrix mixing automation and control, using the TI-TMS320C6701 Digital Signal Processor. This DSP card also holds 32MB SDRAM and 8MB Flash memory, allowing stand-alone operation once programmed with an automation cue list. The DSP is also interfaced to four relay contact outputs, four digital sensor inputs and two analogue sensor inputs for control and reading of external devices.
Channels
Maximum 160/512 audio I/O channels
Dynamic Range
192dB
Digital Logic Inputs
LX-DSP cards with serial numbers 0000–0688 require an external pull-up resistor to use the Digital Logic Inputs. Connect a 1/4W 2K2 resistor between the Digital Logic Input terminal and the +5V reference voltage. One resistor is required for each Digital Logic Input.
Special DSP ID Numbers
The ID switch on an LX-DSP module can be set to force the LX-300 to erase the flash memory. This is not required in normal operation. See Special DSP ID Codes (p. 16) for more information.
LX-DSP Pin-outs: LX-DSP Sensor I/O Terminal Block
Pin | Name | Signal | Use |
1 | +5V ref | +5V | Reference voltage |
2 | ADC1 | 0-5V | Analog sensor input |
3 | ADC2 | 0-5V | Analog sensor input |
4 | D1 | -TTL (active low with | internal Digital logic input |
5 | D2 | 2K2 pull-up resistor) | |
| |
6 | D3 | | |
7 | D4 | | |
8 | GND ref | GND | Reference ground |
9 | R1 | 500mA@48V max | Relay N/O dry contact |
10
11
R2
12
13
R3
14
15
R4
16