TOSHIBA TOTX140 Technical data

查询TOTX140供应商

FIBER OPTIC TRANSMITTING MODULE

FIBER OPTIC TRANSMITTING
MODULE FOR DIGITAL AUDIO
EQUIPMENT

l Conforms to JEITA Standard CP−1201 (For

Digital Audio Interfaces including Fiber
Optic inter−connections).

l LED is driven by differential circuit.
l A Self−tapping hole for easy attachment to

Audio Equipment panels.

1. Maximum Ratings

(Ta = 25°C)

TOTX140

TOTX140

Unit: mm

Characteristics Symbol Rating Unit

Storage Temperature T

Operating Temperature T

Supply Voltage V

Input Voltage V

Soldering Temperature T

Note 1: Soldering time ≤ 10 seconds (At a distance of 1 mm from the package).

Handling precaution: The LED’s used in this product contain GaAs (Gallium Arsenide).

Care must be taken to protect the safety of people and the environment when scrapping or
terminal processing.

stg

opr

CC

IN

sol

−40 to 70 °C

−20 to 70 °C

−0.5 to 7 V

−0.5 to V

260 (Note 1)

+ 0.5 V

CC

°C

1

2001-07-26

2. Recommended Operating Conditions

Characteristics Symbol Min Typ. Max Unit

TOTX140

Supply Voltage V

High Level Input Voltage V

Low Level Input Voltage V

CC

IH

IL

2.7 3.0 3.6 V

2.1 ― V

0 ― 0.9 V

CC

V

3. Electrical and Optical Characteristics

Characteristics Symbol Test Condition Min Typ. Max Unit

Data Rate NRZ Code (Note 2) DC ― 6 Mb / s

Transmission Distance Using APF (Note 3) and ORX178B 0.2 ― 5 m

Pulse Width Distortion (Note 4) ∆tw

Fiber Output Power (Note 5) P

Peak Emission Wavelength λ

Current Consumption I

High Level Input Voltage V

Low Level Input Voltage V

CC

f

p

IH

IL

(Ta = 25°C, VCC = 3 V)

Pulse Width = 165 ns
Pulse Cycle = 330 ns
Using TORX178B

= 10 pF

C

L

−21 ― −15 dBm

― 650 ― nm

― 15 20 mA

2.1 ― ― V

― ― 0.9 V

−30 ― 30 ns

Note 2: LED is on when input signal is high, and off when it is low.

The duty factor must be maintained between 25 to 75%.
Note 3: All Plastic Fiber (970 / 1000 µm).
Note 4: Between input of TOTX140 and output of fiber optic receiving module.
Note 5: Measure with a standard optical fiber, peak value.

4. Mechanical Characteristics

(Ta = 25°C)

Characteristics Symbol Test Condition Min Typ. Max Unit

Insertion Force Using TOCP172, Initial value ― ― 39.2 N

Withdrawal Force Using TOCP172, Initial value 5.9 ― 39.2 N

Torque for Self−Tap

Using self−tapping screw

(M3 × 8)

58.8 ― 98 N·cm

2

2001-07-26

5. Application Circuit

6. Required Optical Fiber with Fiber Optic Connectors

TOCP172−□□B

7. Board layout hole pattern

(for reference)

TOTX140

Unit: mm
Tole ran c e : ±0 . 1 mm
Recommended PCB thickness: 1.6 mm

3

2001-07-26