CYII4SM1300AA CYPRESS [Cypress Semiconductor], CYII4SM1300AA Datasheet - Page 13

• Manufacturer Part Number: CYII4SM1300AA
• Description: IBIS4-1300 1.3 MPxl Rolling Shutter CMOS Image Sensor
• Manufacturer: CYPRESS [Cypress Semiconductor]

Output Amplifier Gain Control
Table 5. DC Gain of Output Amplifier for Different Gain Settings
The output amplifier gain is controlled by a 4-bit word. In
principle, the output amplifier can be configured in unity feedback
mode by a permanent high signal on UNITYGAIN, but the
purpose of this mode is purely diagnostic. The "normal" gain
settings vary on an exponential scale.
report all gain settings.
Document Number: 38-05707 Rev. *C
Gain Setting
0000
0001
0010
0011
0100
0101
0110
0111
20,00
18,00
16,00
14,00
12,00
10,00
8,00
6,00
4,00
2,00
0,00
DC Gain (<1 MHz)
1
1.28
1.51
1.82
2.13
2.60
3.71
4.40
3.11
2
3
Figure 9.
4
Gain Setting
Figure 9. Output Amplifier DC Gain
5
1000
1001
1010
1011
1100
1101
1110
1111
and
6
Table 5.
7
DC Gain (<1 MHz)
gain setting
8
In first approximation, the gain setting is independent of
bandwidth, as the amplifier is a 2-stage design. The first stage
sets the gain, and the second stage is a unity gain buffer, that
determines bandwidth and slew rate. There is however some
influence of gain setting on bandwidth.
output amplifier bandwidth for all gain settings.
10.70
12.65
15.01
17.53
5.33
6.37
7.41
8.91
9
10
11
12
y=1.074*2
13
0.246*x
14
CYII4SM1300AA
15
Figure 10.
16
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