TSL214 Datasheet, PDF (2/13 Pages) Texas Instruments – 64 X 1 INTEGRATED OPTO SENSOR

TSL214
64 × 1 INTEGRATED OPTO SENSOR
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SOES002E − JUNE 1991 − REVISED MARCH 1994
functional block diagram
VDD
1, 7
ąą
1
2
3
64 Pixels
Pixel Selector Switch
Sense
Node
Dark Pixel
Reference
Generator
Pixel
Buffer
Pixel
Buffer
S1
Reset
S2
S3
S64
Nonoverlapping
Clock Generator
Q1
Q2
Q3
Q64
Differential
Amplifier
Sample
and
Hold
Output
Buffer
RL
(external load)
4 _AO
6 _SO
CLK ³
SI ²
64-Bit Shift Register
Clock
Generator
TERMINAL
NAME
NO.
AO
4
CLK
3
GND
5, 12
NC
8 −11,
13, 14
SI
2
SO
6
VDD
1, 7
Terminal Functions
DESCRIPTION
Analog output
Clock input. CLK controls charge transfer, pixel output, and reset.
Ground (substrate). All voltages are referenced to the substrate.
No internal connection
Serial input. SI defines the end of the integration period and initiates the pixel output sequence.
Serial output. SO provides a signal to drive the SI input of another TSL214 sensor for cascading.
Supply voltage. VDD supplies power to the analog and digital circuits.
2
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