Instrustar ISDS205A
| Status | Planned |
|---|---|
| Channels | 2 |
| Samplerate | 48M |
| Samplerate (eq. time) | ? |
| Analog bandwidth | 20M |
| Vertical resolution | 8bit |
| Triggers | Automatic, Continuouse, Single |
| Input impedance | 1MΩ‖25pF |
| Connectivity | USB device |
| Features | User Guide |
| Website | instrustar.com |
The Instrustar ISDS205A is a low end USB-based 2-channel oscilloscope.
See Instrustar_ISDS205A/Info for more details (such as lsusb -v output) on the device.
Hardware
- Cypress FX2LP CY7C68013AC (USB 2.0 HS controller, TQFP100)
- Analog Devices AD9288 (ADC)
- Microchip 24LC641 (64K I²C EEPROM)
- (2)NXP 74HC4051 (8-Channel Analog Mux)
- NXP 74HC595D (8bit Shift Register (Serial-in to Serial or Parallel-out))
- Oscillator GZX24.000 (24MHz crystal)
- (4) Huike (Shenzhen) HK23F-DC5V-SHG (Reed switch)
NXP 74HC595D pinout:
| (upper 74HC4051D, S0) Q1 | 1- | O | -16 | VCC |
| (lower 74HC4051D, S0) Q2 | 2- | -15 | Q0 (upper 74HC4051D, S1) | |
| (lower 74HC4051D, S1) Q3 | 3- | -14 | DS (FX2 PA4) | |
| Q4 | 4- | -13 | OE# (GND) | |
| Q5 | 5- | -12 | STCP (FX2 PA5) | |
| Q6 | 6- | -11 | SHCP (FX2 PA6) | |
| Q7 | 7- | -10 | MR# (VCC) | |
| GND | 8- | -9 | Q7S |
Upper NXP 74HC4051D (CH1) pinout:
| Y4 | 1- | O | -16 | VCC |
| Y6 | 2- | -15 | Y2 | |
| Z | 3- | -14 | Y1 | |
| Y7 | 4- | -13 | Y0 | |
| Y5 | 5- | -12 | Y3 | |
| (GND) E# | 6- | -11 | S0 (NXP 74HC595D, Q1) | |
| VEE | 7- | -10 | S1 (NXP 74HC595D, Q0) | |
| GND | 8- | -9 | S2 (GND) |
Lower NXP 74HC4051D (CH2) pinout:
| Y4 | 1- | O | -16 | VCC |
| Y6 | 2- | -15 | Y2 | |
| Z | 3- | -14 | Y1 | |
| Y7 | 4- | -13 | Y0 | |
| Y5 | 5- | -12 | Y3 | |
| (GND) E# | 6- | -11 | S0 (NXP 74HC595D, Q2) | |
| VEE | 7- | -10 | S1 (NXP 74HC595D, Q3) | |
| GND | 8- | -9 | S2 (GND) |
Photos
Case, Front
Case, Back
PCB, Front
PCB, Back
IC's:(2) Mux, ADC, Shift-Reg
IC's:(1 of 2) Mux, ADC, Shift-Reg, USB Host, EEPROM, Crystal
Jacks, Reed Switches, Calibration, IC's:(2) Mux, ADC, USB Host, Crystal
