JBL Partybox On-The-Go Service Manual page 6

4.1.2 Other Requirements
Short Circuit Protection at Output Stage
Over Voltage Protection
Thermal Protection
Environmental Conditions
4.1.3 Microphone/Guitar input/Wireless Microphone
For MIC driving circuit(between MIC port and ADC) tbd
Description
Gain (input 5mVrms at 1KHz)
Frequency Response
Signal-to-Noise Ratio (input 5 mVrms at
1KHz)
4.2 Bluetooth Section
4.2.1 General
Description
Bluetooth Standard
Frequency Band
Host Interface
Profile Supported
Audio Codec
Data Rate
Antenna
Certification
The amplifier should be protected so that no functional failure
occurs when it is operated with a short across its output stage
for 2 minutes. The amplifier should recover after removing the
short condition.
In case a regulation loop in the unit gets defectives, the output
voltage shall not exceed more than 30% of the nominal value.
There should not be any breakdown or activation of any
protection circuit during the entire thermal profile test. Refers to
the Thermal Profile test stated in Reliability Test Plan for
Multimedia Powered Speaker System.
The unit should work between +5 C till 45 C under ambient
temperature.
The unit should not get damaged within the temperature range
of +5 C till 60 C ambient temperature.
Specification
20dB to 35dB
20Hz to 20KHz +/- 1dB
70dB (A-Weighted) 10Hz - 22KHz BW
Specification
Version 4.2+ EDR,BLE
2.402 – 2.480 GHz
UART
SPP (Serial Port Profile)
A2DP (Advanced Audio Distribution Profile)
AVRCP (Audio/Video Remote Control Profile)
SBC (Subband Codec)
2.1Mbps (over the air)
300Kbps (over UART)
Internal
CE, FCC, BQE
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