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S23W

1. SCOPE

THIS SPECIFICATION IS APPLIED TO THE DYNAMIC RECEIVER/SPEAKER WHICH IS USED IN CELLULAR PORTABLE PRODUCT.

 

2. GENERAL SPECIFICATIONS

ANALYSIS  ITEMS

SPECIFICATIONS

1. TYPE

Dynamic speaker

2. OUT SIDE SIZE

φ23mm , Shown  Fig.3

3. IMPEDANCE

8Ω±20%  at 1 KHz 2.0Vms Sine Wave

4. RESONANCE FREQUENCY

750±20% Hz at 1.0V Sine wave

5.SENSITIVITY (S.P.L.)

95dB ±3dB at 0.5w/ 0.1m / 10.12.15.20×100Hz average

6. RATED / MAX. POWER

1.0W /1.2W

7. FREQUENCY RANGE

fo ~ 20kHz

8. DISTORTION

Less than 8 % at 1000Hz 0.5 W

9. UNIT WEIGHT

5.2g±0.1g

10. MEASURING DIAGRAM

Shown in Fig.1

11. FREQUENCY RESPONSE

Shown in Fig.2

12. OPERATING TEMPERATURE

- 30℃ ~ +70

13. STORAGE TEMPERATURE

- 40℃ ~ +80

14. OPERATION TEST

No one should perceive noise of sine wave 2.0V of 0.5kHz ~ 5kHz .

3. ENVIRONMENTAL CHARACTERISTICS

RESULTS OF AFTER TEST

Sensitivity difference shall be within (3dB) and should satisfy the test  described  under  item 14  after each following test.

1. APPEARANCE 

Should not exist any obstacle to be harmful to normal operation : damages \ cracks \ rusts and distortions etc.

3. POLARITY

When positive voltage is applied to the terminal marked (+), diaphragm should move to the front.

4. LOAD TEST

1.0 W white noise is applied for 96 hours and satisfy the test listed on item 05,08,14.

5. HIGH TEMPERATURE DURABILITY

After having been in a test chamber for 96 hours at the  condition of +80℃ ±5and then let 2 hours in a room .

6. COLD TEMPERATURE DURABILITY

After having been in a test chamber for 96 hours at  the condition  of -40℃ ±5and then let 2 hours in a room .

7. HUMIDITY DURABILITY

After having been in a test chamber for 96 hours at the condition  of  +40℃±590%~96% RH  and then  let 2 hours in a room .

8.TEMPERATURE  CYCLE DURABILITY

Low temperature  -40 ℃ ±2(2 hour ) /  high temperature        +85±2(2 hour ) : 1 cycle , total 10 cycles and then let 2 hours in a room .

9.VIBRATION DURABILITY

Frequency Range:10Hz ~ 500Hz 

Amplitude : 0.35mm or acceleration : 50m/s2

Duration : 2h per axis=10 cycles ; 3 axis

10.DROP TEST

The speaker unit shall stand 10 random drops from a height of 1 meter to a concrete floor faced with 5m/m thick hard wood board and be nothing mechanical damage.

11.PACKING STRENGTH

As per packing condition, from height of 1 meter, the unit is to be dropped 1 time each in three planes on concrete floor.

4.STANDARD TEST CONDITION OF SPEAKER (Fig.1)

1(4).png

FREQUENCY RESPONSE (SPEAKER MODE)  (Fig.2)

2(4).png

4.ASSEMBLY DIMENSIONS (Fig.3)

3(4).png

4. PACKING (Fig.4)

4(3).png


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