Bluetooth Stereo Headset

Bluetooth Standard

Bluetooth 2.1+EDR

Chipset

CSR BC57F687A05

Speaker

32± 15% ohm, Normal 0.05W,Maximum 0.1W,

Microphone

 -42±3dB

Charging interface

MINI USB Type Port

Button

5Button

RF Specification       

Frequency band

2.4G ISM band

Frequency range

2.402-2.480GHZ

Spectrum

FHSS

Modulation

GFSK，π/4 DQPSK，8DPSK

Antenna

PCB antenna

Min

Typ

Max

Unit

Power consumption

Charging input voltage range

4.7

5

6

V

Charger input current requirements

mA

Ripple And Noise (Charger input)

350

200

mV p-p

Battery Charging Saturation voltage

4.1

4.2

4.3

V

Battery capacity

400

mAH

Low-voltage warning

3.3

3.4

3.5

V

Low-voltage automatic shutdown

2.95

3.1

3.15

V

Talk Current(HV3 connection,Dc=3.7V)

20

22

mA

Standby current(ACL connection sniff mode, Dc=3.7V)

500

1000

uA

leakage current(Power off mode, DC=3.7V)

1

uA

Talk time

18

H

Standby time

400

H

Audio Characteristics

Speaker Output frequency range

20

4000

HZ

Output Sound Pressure Level(S.P.L)(1Khz at 1cm )

102

105

108

dB

Distortion and noise (relative to full scale )(32ohm Speaker)

-72

-75

dB

Microphone input frequency range

20

4000

HZ

Distortion and noise at 1Khz(Microphone)

-75

-78

dB

RF Characteristics

Frequency Range

2.402

2.480

GHZ

Transmitter power

0

4

dBm

Initial carrier

-40

40

KHZ

Operating range(positive direction)

10

Meter

Operating range(opposite direction)

6

Meter

RF Receiver:

Sensitivity at 0.1% BER for all packet types at 2.441GHZ (Bluetooth Specification ≤-70dBm)

-82

-88

dBm

Maximum received signal at 0.1% BER (Bluetooth Specification≥-20dBm)

0

3

dBm

RF Transmitter:

Transmit power(Bluetooth Specification-6to +4)

-2

0

4

dBm

△f1avg Maximum Modulation.(Bluetooth Specification 140＜f1avg＜175)

140

165

175

kHZ

△f2avg  Minimum Modulation  (Bluetooth Specification ≥115)

115

140

kHZ

△f1avg/△f2avg (Bluetooth Specification≥0.8)

0.8

0.9

-

Reliability  Specifications

Operating Temperature

-10

60

℃

Storage Temperature

-20

80

℃

Operating humidity

75

%

Storage humidity

85

%

Drop test height

150cm 12 times, cement floor

Vibration Test

X, Y, Z three directions and do 30 minutes 10 ~ 55Hz sweep cycle of vibration, scan rate for 1oct/min; 10 ~ 30Hz when the amplitude of 0.38mm, 30 ~ 50Hz at 0.19mm amplitude

Continuous Infliction Life Test

- Plug & Arm : 10,000 times

- Key : 20,000 times

Plating Life Test

- Salt water

(35C, 5%NaCl, 72hr)

- Acid resisting (pH4.6, 72hr)

- X-cutting

Printing Life Test

- Methyl Alcohol 30 times

Plating Life Test

- Salt water (35°C, 5%NaCl, 48hr)

- Acid resisting (pH4.6, 48hr)

- X-cutting