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)
Cypress FX2 pinout:
| PD5 | 1- | O | -56 | PD4 |
| PD6 | 2- | -55 | PD3 | |
| PD7 | 3- | -54 | PD2 | |
| GND | 4- | -53 | PD1 | |
| CLKOUT | 5- | -52 | PD0 | |
| VCC | 6- | -51 | *WAKEUP | |
| GND | 7- | -50 | VCC | |
| RDY0/*SLRD | 8- | -49 | RESET# | |
| RDY1/*SLWR | 9- | -48 | GND | |
| AVCC | 10- | -47 | PA7 | |
| (24MHz crystal) XTALOUT | 11- | -46 | PA6 (74HC595D, SHCP) | |
| (24MHz crystal) XTALIN | 12- | -45 | PA5 (74HC595D, STCP) | |
| AGND | 13- | -44 | PA4 (74HC595D, DS) | |
| AVCC | 14- | -43 | PA3 | |
| (USB D+) DPLUS | 15- | -42 | PA2 | |
| (USB D-) DMINUS | 16- | -41 | PA1 | |
| AGND | 17- | -40 | PA0 (1kHz scope cal pin) | |
| VCC | 18- | -39 | VCC | |
| GND | 19- | -38 | CTL2 | |
| (CTL0, AD9288 ENCA/B) *IFCLK | 20- | -37 | CTL1 | |
| RESERVED | 21- | -36 | CTL0 (IFCLK, AD9288 ENCA/B) | |
| (EEPROM SCL) SCL | 22- | -35 | GND | |
| (EEPROM SDA) SDA | 23- | -34 | VCC | |
| VCC | 24- | -33 | GND | |
| PB0 | 25- | -32 | PB7 | |
| PB1 | 26- | -31 | PB6 | |
| PB2 | 27- | -30 | PB5 | |
| PB3 | 28- | -29 | PB4 |
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
