TH7834C Datasheet, PDF (7/13 Pages) ATMEL Corporation – Very Highresolution Linear CCD Image Sensor (12000 Pixels)

TH7834C
• Each video line in four output operating mode consists in:
– 30 inactive pre-scan, (not connected to pixels),
– 6 dark references,
– 4 isolation elements, (inactive, not connected to pixels),
– 3 non-useful pixels,
– 3 000 useful pixels of the line.
N = number of pixel periods (T_p) during readout period (see Figure 5).
Four output operating mode: N ≥ 3043.
Two output operating mode: N ≥ 6086.
(Φ_LS can be clocked during the line blancking).
Figure 4. Detailed Timing Diagram For Transfer From Photosite To Register
ΦP1-2, ΦP3-4
ΦL1, ΦL2
≥ 20 ns
≥ 2 µs
≥ 100 ns
ΦLS
N
1
ΦR
Figure 5. Detailed Pixel Timing Diagram
ΦP1-2, ΦP3-4
ΦL1, ΦL2
ΦLS1-2, ΦLS3-4
ΦR1-2, ΦR3-4
≥ 20 ns
Tp/2 Typ.
≥ 30 ns
Tp (200 ns Typ.)
VOS (1-2-3-4)
(CCD output signal)
Reset
Signal
T_P = Pixel period
Rise and fall time:
Φ_R1-2, Φ_R3-4: 5% of T_P (min. 5 ns),
Φ_LS1-2, Φ_LS3-4: 5% of T_P (min. 5 ns),
Φ_L1, Φ_L2: 25% of TP (min. 30 ns),
Φ_P1-2, Φ_P3-4: 100 ns (min 20 ns).
Floating
diode
(Reference level for
correlated double Sampling)
7
1997A–IMAGE–05/02