LG KS20 - Sound Pressure Level; Charging

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Only for training and service purposes
2. PERFORMANCE
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2.7 Sound Pressure Level
2.8 Charging
• Charging Method : CC & CV (Constant Current and Constant Voltage)
• Maximum Charging Voltage : 4.2 V
• Maximum Charging Current : 900 mA
• Normal Battery Capacity : 1050 mAh
• Charging Time : Max 2.5 hours (except for trickle charging time)
• Full charging indication current (charging icon stop current) : 60 mA
• Cut-off voltage : 3.20 V
No Test Item Specification
1 Sending Loudness Rating (SLR) 8 ±3 dB
2 Receiving Loudness Rating (RLR)
Nor 2 ± 3 dB
Max -13 dB
3 Side Tone Masking Rating (STMR) Min 23 dB
4 Echo Loss (EL) Min 46 dB
5 Idle Noise-Sending (INS) Max -64 dBm0p
6 Idle Noise-Receiving (INR)
Nor
Under -54 dBPA
Max
7 Sending Loudness Rating (SLR) 8±3dB
8 Receiving Loudness Rating (RLR)
Nor -1 ±3 dB
Max -12 ±3 dB
9 Side Tone Masking Rating (STMR) Min 25 dB
10 Echo Loss (EL) Min 40 dB
11 Idle Noise-Sending (INS) Max -55 dBm0p
12 Idle Noise-Receiving (INR)
Nor Under -45 dBPA
Max Under -40 dBPA
TDMA Noise
-. GSM : Power Level : 5
DCS/PCS : Power Level : 0
(Cell Power : -90 ~ -105 dBm)
13
-. Acoustic (Max Vol.)
MS/Headset SLR : 8 ± 3dB
MS/Headset RLR : -15 ± 3dB/-12 dB
(SLR/RLR : Mid-value setting)
MS
Headset
MS and
Headset
Max
Under -62 dBm