T0800-PJQ datasheet(3/14 Pages) ATMEL

Part #	T0800-PJQ

Description	5-CHANNEL LASER DRIVER WITH RF OSCILLATOR AND 2 OUTPUTS

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Manufacturer	ATMEL [ATMEL Corporation]

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3

4503D–DVD–02/05

T0800

Figure 2-2.

Pinning QFN28

I4

I5

RFA

RFB

GND

NE2

NE3

IOUTA

GND

RSA

RSB

IOUTB

28 27 26 25 24 23 22

8 9 10 11 12 13 14

1

2

3

4

5

6

7

21

20

19

18

17

16

15

Table 2-2.

Pin Description: QFN28

Symbol

Type

Function

1

I4

Analog

Input current, bias voltage approximately GND

2

I5

Analog

Input current, bias voltage approximately GND

3

RFA

Analog

External resistor to GND sets frequency of oscillator A

4

RFB

Analog

External resistor to GND sets frequency of oscillator B

5

GND

Supply

Ground

6

NE2

Digital

Digital control of channel 2 (low active)

7

NE3

Digital

Digital control of channel 3 (low active)

8

NE4

Digital

Digital control of channel 4 (low active)

9

NE5

Digital

Digital control of channel 5 (low active)

10

ENABLE

Digital

Enables output current (high active)

11, 12

VCC2

Supply

+5 V power supply IOUT

13

ENOSC

Digital

Enables RF oscillator (high active)

14

SELA

Digital

High: selects IOUTA, RFA, RSA

Low: selects IOUTB, RFB, RSB

15

IOUTB

Analog

Output current source B for laser diode

16

IOUTB

Analog

Output current source B for laser diode

17

RSB

Analog

External resistor to GND sets swing of oscillator B

18

RSA

Analog

External resistor to GND sets swing of oscillator A

19

GND

Supply

Ground

20

IOUTA

Analog

Output current source A for laser diode

21

IOUTA

Analog

Output current source A for laser diode

22, 23

VCC2

Supply

+5 V power supply IOUT

24

VCC1

Supply

+5 V power supply circuit

25

NC

–

Not connected

26

IR

Analog

Input current, bias voltage approximately GND

27

I2

Analog

Input current, bias voltage approximately GND

28

I3

Analog

Input current, bias voltage approximately GND

Paddle

–

Should be connected with ground

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