EPC901 Datasheet, PDF (12/37 Pages) Espros Photonics corp – CCD line sensor 1024x1 pixel

4.2. Dynamic change of the configuration pins
If the configuration pins shall dynamically be changed in the application, the setup and hold time as shown in the diagram below have to be
used for a safe operation of the IC.
READ
configuration pins
T T _{SU,CONF H,CONF}
4.3. Charge pump on/off through DATA_RDY strap pin
The DATA_RDY pin is used as a strap pin to enable/disable the charge pump. At power-up, the voltage level on DATA_RDY is checked.
In case of a logic-low level, which is set by the internal pull-down resistor, the charge pump is on by default. In case of a logic-high level,
which can be set by an external 10k pull-up resistor, the charge pump is off by default (see figure below).
4
DATA_RDY
R_DI
DGND
Charge pump on
VDD
R_PU
10k
4
DATA_RDY
R_DI
DGND
Charge pump off
4.4. Frequency response setting
The following Bode plot shows the typical frequency response of the readout chain, according to the settings of the configuration pins BW0
and BW1, refer to section 4.1. Configuration pin description and Table 7.
2
0
-2
-4
-6
-8
-10
-12
-14
-16
-18
-20
1
Typical frequency response
Bandwidth = 16MHz
Bandwidth = 1MHz
10
100
f[MHz]
2
© 2016 ESPROS Photonics Corpo0ration
Characteristics subject to change without notice
-2
-4
-6
Typical frequency response
Bandwidth = 1, VIDEO_GBW_SEL_REG = 0x00
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Datasheet_epc901-V5.6
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