The Toshiba TCD1304DG is a high-sensitivity, low dark current 3648-element CCD linear image sensor. It features an electronic shutter function that maintains a constant output voltage, regardless of light intensity.
| Characteristic |
Description |
| Number of Image Sensing Elements |
3648 elements |
| Dynamic Range (DR) |
≥ 300 |
| Image Lag of Electronic Shutter |
≤ 10 mV (tINT=100μs) |
| Functions |
Electronic shutter, Sample and hold circuit |
| Characteristic |
Min |
Typ |
Max |
Unit |
| Saturation Output Voltage (VSAT) |
450 |
600 |
- |
mV |
| Dark Signal Voltage (VMDK) |
0 |
2 |
5 |
mV |
| DC Output Signal Voltage (VOS) |
1.5 |
2.5 |
3.5 |
V |
| Output Impedance (ZO) |
- |
0.5 |
1.0 |
kΩ |
| Power Supply Voltage (VAD, VDD) |
3.0 |
4.0 |
5.5 |
V |
| Pin No. |
Symbol |
Name |
Arduino Nano Pin |
| 1 |
VDD |
Power supply (Digital) |
5V |
| 2 |
VAD |
Power supply (Analog) |
5V |
| 3 |
ICG |
Integration clear gate |
D5 |
| 4 |
φM |
Master clock |
D9 |
| 5 |
SH |
Shift gate |
D4 |
| 21 |
OS |
Output signal |
A0 |
| 22 |
SS |
Ground |
GND |
- 1 Line Readout Period: 3694 Elements
| Dummy |
Light Shielded |
Transition Zone |
Effective |
Dummy |
Unknown Purpose |
| 16 px |
13 px |
3 px |
3648 px |
12 px |
2 px |
| Characteristic |
Min |
Typ |
Max |
Unit |
| Master Clock Pulse Frequency |
0.8 |
2.0 |
4.0 |
MHz |
| Data Rate |
0.2 |
0.5 |
1.0 |
MHz |
| Characteristic |
Min |
Typ |
Max |
Unit |
| ICG Pulse Delay (t1) |
1000 |
5000 |
- |
ns |
| Pulse Timing of ICG and Shift Gate (t2) |
100 |
500 |
1000 |
ns |
| Shift Gate Pulse Width (t3) |
1000 |
- |
- |
ns |
| Pulse Timing of ICG and Master Clock (t4) |
0 |
20 |
- |
ns |
| Minimum Integration Time (tINT) |
10 |
- |
- |
μs |
1 Tick = 1 Master Clock Duty cycle (50% high, 50% low)
| Start Tick (Total) |
Duration (Ticks) |
Shift Gate (SH) |
Integration Clear Gate (ICG) |
| 1 |
1 |
Low |
Low |
| 2 |
4 |
High |
Low |
| 6 |
4 |
Low |
Low |
| Start Tick (Total) |
Duration (Ticks) |
Shift Gate (SH) |
Integration Clear Gate (ICG) |
| 10 |
4 |
High |
High |
| 14 |
2 |
Low |
High |
| 16 (Reading) |
1 |
Low |
High |
| 29558 -> 1 or delay |
1 |
Low |
Low |
note: the last tick of the last readout phase (tick 29558) marks the first tick of the preparation pase.
in other words, the last readout pase is one tick shorter.
- Electronic Shutter Function: Ensures that the output voltage remains constant despite varying light intensity.
- Shift Gate Cycle: Equal to the integration time (tINT).
- Illumination Limitation: The illumination of the light source should be less than 1000 times the 450 mV output condition at tINT = 10 ms.
For more details, refer to the full datasheet provided by Toshiba.