JT107MG48 datasheet(3/7 Pages) LUGUANG

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5.2.1

Input Signal：Input Level：112dBμV

Modulation Frequency：1000Hz

Frequency Deviation： ±75kHz

5.2.2 Center Frequency（fo）: Center frequency is defined as the

frequency at that D.C.output voltage shall correspond to 0.6V.

5.2.3 Recovered Audio Voltage: It is defined as the recovered audio

voltage at center frequency（fo）.

5.2.4 Distortion: It is defined as the distortion at center frequency（fo）.

5.2.5 Recovered Audio 3dB Bandwidth: It is defined as the difference

between the two frequencies where the recovered audio voltage

3dB from the level of center frequency（fo）.

PHYSICAL AND ENVIRONMENTAL CHARACTERISTICS

Item

Condition of Test

Performance

Requirements

6.1

Humidity

Subject the resonator at +40 ℃± 2 ℃ and

90%~95% R.H. for 100h, resonator shall be

measured

after

being

placed

natural

conditions for 1h.

It shall fulfill the

specifications in

Table 1.

6.2

High

Temperature

Exposure

Subject the resonator to +85 ℃± 5 ℃ for

100h, resonator shall be measured after being

placed in natural conditions for 1h.

It shall fulfill the

specifications in

Table 1.

6.3

Low

Temperature

Exposure

Subject the resonator to–25 ℃± 5 ℃ for

100h, resonator shall be measured after being

placed in natural conditions for 1h.

It shall fulfill the

specifications in

Table 1.

6.4

Temperature

Cycling

Subject the resonator to －25℃ for 30min.

followed by a high temperature of +85℃ for

30min. Cycling shall be repeated 5 times.

Resonator shall be measured after being

placed in natural conditions for 1h.

It shall fulfill the

specifications in

Table 1.

6.5

Vibration

Subject the resonator to vibration for 2h each

in x y and z axis with the amplitude of

1.5mm,

the

frequency

shall

varied

uniformly between the limits of 10Hz~55Hz

and then resonator shall be measured.

It shall fulfill the

specifications in

Table 1.

6.6

Mechanical

Shock

Resonator shall be measured after 3 times'

random dropping from the height of 100cm

on concrete floor.

No visible：

damage

and

shall fulfill the

specifications in

Table 1.

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