TSL215

128

× 1 INTEGRATED OPTO SENSOR

SOES005A – JUNE 1992 – REVISED AUGUST 1993

2

POST OFFICE BOX 655303

functional block diagram of each section

Hold

and

Sample

1,7

VDD

2,10

3

SI

CLK

SO

6,13

AO

4,8

RL

(external load)

Buffer

Output

Node

Sense

Amplifier

Differential

Generator

Reference

Dark Pixel

Generator

Clock

64-Bit Shift Register

Q64

Q3

Q2

Q1

S64

S3

S2

S1

Reset

Nonoverlapping

Clock Generator

Pixel Selector Switch

64 Pixels

3

2

1

Pixel

Buffer

Pixel

Buffer

Terminal Functions

PIN

DESCRIPTION

NAME

NO.

DESCRIPTION

AO1

4

Analog output of section 1

AO2

8

Analog output of section 2

CLK

3

Clock. The clock controls charge transfer, pixel output, and reset.

GND

5, 12

Ground (substrate). All voltages are referenced to the substrate.

NC

9,

11, 14

No internal connection

SI1

2

Serial input (section 1). The serial input defines the end of the integration period and initiates the pixel output sequence.

SI2

10

Serial input (section 2). The serial input defines the end of the integration period and initiates the pixel output sequence.

SO1

13

Serial output (section 1). The serial output provides a signal to drive the SI2 input.

SO2

6

Serial output (section 2). The serial output provides a signal to drive the SI1 input of another TSL215 sensor for

cascading.

VDD

1, 7

Supply voltage. These supply power to the analog and digital circuits.