Nokia 6310i Service Manual page 94

NPL-1
3 - Audio System
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Receiver input impedance
Maximum Sound pressure level
Transmitter output impedance
Transmitter sensitivity
XMIC bias voltage
XMIC bias current
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Ear signal in Codec after PCM DAC converter
Ear signal amplifier gain in codec
Electroacoustic transfer function (Rx)
Microphone signal level
Level at AD input in Codec
Mic. amplifier gain in codec
Noise voltage, microphone
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HDC-9P interface specifications
Object
Selected specifications for HDW-1 BT Headset
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PAMS Technical Documentation
Specification
150 Ohm +/- 25 %
106 dB SPL
2200 Ohm +/- 30 %
- 43.5 dBV/Pa +/- 3 dB
1.5 V
1.5 mA
Min Typ Max
80 490
-18 2 12
17
3 4 6
58 490
20 42.5
5
Notes
@ 390 mV at 1 kHz
at 1 mW
at 1 kHz
at 1 kHz
Typical
Maximum
Unit
mVrms in codec
dB / setting by 2 dB steps
dBPa/V/0.5m
mV/Pa
mVrms in codec
dB
uVrms
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