Hfs-12 Audio Specifications, Acoustic; Audio Signal Levels; Signals And Connections - Nokia Mobile Phones NSE-5 Series Service Manual

HFU–2 Handsfree Unit
HFS–12 Audio Specifications, acoustic
Electroacoustic transfer func-
tion (RX) dBPa/1V/0.5m
Speaker distortion level at
XEAR–SGND, d=5%
HF–speaker: SPL, approxi-
mate over 500 ... 3000 Hz
Equivalent input noise,
XEAR
Total noise, HF speaker
HFM–8 Audio Specifications, acoustic
Electroacoustic transfer func-
tion (TX) dBV/dBPa/0.5m
Total noise, XMIC–SGND

Audio signal levels

Signal name / conn. / pin
XEAR / X100 / 4
SGND / X100 / 3
XMIC / X100 / 2
HFMIC / X400 / 2
SPEAKER / X500 / 1 & 2

Signals and Connections

Connector Name
System connector
Handset / Data connector
Car connector
HFMIC connector
EXT. SPEAKER connector
Page 6
Minimum Typical /
Nominal
11 15
354
87 89
–4 –2
200
Minimum Typical /
Nominal
–28 –24
140
Minimum Typical /
Nominal
80
0
60
2.0
0.75
Code Notes
X100 Charge, Mbus, Fbus, audio
lines, VB
X200 Mbus, Fbus, Handset au-
dio– lines, Hshook, 10V
X300 +VB, –VB, ign. sense, car
radio mute, antenna motor
control
X400 External microphone
X500 External speaker
Technical Documentation
Maximum Unit / Notes
19 dBPa / 1V at system
connector is theoreti-
cal level
mVrms
91 dB / 1W / 1m
0 dBPa / 0.5W at 0,5m
10 uVrms psofometric
400 uVrms psofometric
Maximum Unit / Notes
–20 dBV/–5dBPa/0.5m
300 uVrms psofometric
Maximum Unit / Notes
354 mVrms
mVrms
990 mVrms
mVrms
5 V rms
Specifications / Ratings
Modular 15 pin.
Modular 10 pin.
2 X 3 Power conn.
2.5 mm jack
3.2 mm jack
Original 11/97
PAMS