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1-1 SCOPE

This specification is a typical speake unit fo telephone hand set

1-2 DIMENSIONS

As shown in fig (1)

1-3 NET WEIGHT

APPROX. 1.2 gams

1-4 OPERATING

TEMPERATURE

-30℃to +70℃

1-5STORAGE

TEMPERATURE

-40℃to +85℃

2.ELECTR0ACOUSTIC CHARACTERISTICS

2-1 TEST SET UP

Measuing conditions and pocedues shown in fig(2)

2-2 IMPEDANCE

8Ω±15% ohm ( at 2 KHz, 0.9Vms )

2-3 SOUND PRESSURE

LEVEL

93dB±3dB SPL /0.1W/10mm at 800、1000、1200、1500Hz .AVE

2-4FREQUENCY

RESPONSE

800±20%HZ

2-5INPUT POWER

(NOM./MAX.)

1W/1.2W

2-6 AUDIBLE NOISE

Must be fee audible noise (buzzes and attles)

(200~10KHz fequency ange ,input level up to 2.83Vms)

2-7 DISTORTION

Less than 10% at 1KHz 1W