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Loopset LPS-3

PAMS Technical Documentation

Page 5

Nokia Mobile Phones Ltd.

Issue 1 12/99

Basic Specification

Unit

Max. dimensions (mm)

(W x H x D)

Notes

LPS–3

37mm x 40mm x 17mm

Weight 60g

List of Modules

Name of module

Type name

Material code

Note

LPS–3 Product

LPS–3

0630244

LPS–3 Module

JL3

0201489

Assembly parts

MLPS3

0262071

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Содержание Loopset LPS-3

Страница 1: ...PAMS Technical Documentation Issue 1 12 99 Nokia Mobile Phones Ltd Loopset LPS 3 ...

Страница 2: ... Loopset LPS 3 PAMS Technical Documentation Page 2 Nokia Mobile Phones Ltd Issue 1 12 99 AMENDMENT RECORD SHEET Amendment Number Date Inserted By Comments 12 99 OJuntune ...

Страница 3: ...Functional Description 6 Modes of Operation 6 Loopset detection 6 Loop Adapter 7 Magnetic Loop 7 Specification 7 Reception Specifications 7 Ratings 7 Automatic Gain Control AGC 7 Magnetic Field frequency response window 8 Functional Blocks 8 Distortion and noise 8 Microphone response window 9 External Signals and Connections 10 Exploded View of LPS 3 12 Assembly parts of LPS 3 12 Parts List of LPS...

Страница 4: ...ring aids have two operation modes M mode for normal microphone use and T mode for telecoil use The T mode is used in places where the inductive loop has been as sembled for example in public halls churches and places of assembly The reason for T mode use is much better S N ratio The Loopset provides clear acoustic quality The Loopset also dampens backgroud noise to make it easier to converse in a...

Страница 5: ...e Phones Ltd Issue 1 12 99 Basic Specification Unit Max dimensions mm W x H x D Notes LPS 3 37mm x 40mm x 17mm Weight 60g List of Modules Name of module Type name Material code Note LPS 3 Product LPS 3 0630244 LPS 3 Module JL3 0201489 Assembly parts MLPS3 0262071 ...

Страница 6: ... within 5 week Technical Specifications The Nokia LPS 3 Loopset is powered by three hearing aid batteries and comes pre packaged with six zinc air batteries The auto answer feature of the phone allows the users to be hands free while using either the Nokia LPS 3 Loopset or headset accessories The interface between Loopset and phone is similier to a headset Except the hight impedance input Name of ...

Страница 7: ...in HookInt but headset with the switch could not Loop Adapter Connection resistance must be under 3mΩ Magnetic Loop The magnet field is based on the IEC 118 4 and BS 6083 part 4 stan dard Specification Reception Specifications Type of Function Specification Notes Impedance 100k ohm 5 at 1 kHz Frequency responce See figure 1 Magnetic field 100mA m RMS 3dB ref 1kHz 0dB 400mA m 12dB 125 ms RMS peaks ...

Страница 8: ...Specifications Object Specification Notes Output impedance 1600 ohm 30 1kHz Frequency response See Figure 2 Sensitivity 48 dB 6 3 dB at 1kHz 0dBv PA Sensitivity dBm0 13 dBm0 6 3 dBm0 at 1kHz 0dBv PA 4 7 dBPA Sensitivity 59 dB 6 3 dB at 1kHz 0dBv PA Sensitivity dBm0 24 dBm0 6 3 dBm0 at 1kHz Directivity mic acuctic OMNI directional Signal to Noise Ratio 55 dB 1Pa 1kHz Distortion and noise Total dist...

Страница 9: ...set LPS 3 PAMS Technical Documentation Page 9 Nokia Mobile Phones Ltd Issue 1 12 99 Microphone response window 0 5 10 5 10 15 20 1k 2k 4k 500 250 3 dB 300 Hz 3 kHz 3 dB 5 dB 3 dB 3 dB 3 dB 3 dB 3 dB 3 dB dBr ...

Страница 10: ... Phones Ltd Issue 1 12 99 External Signals and Connections LoopN LoopP Shutdown Mic XEarP XEarN Low signal RCOSC VREF Vbattery GND COMP1 COMP3 from Mobile Internal LOOPSET signals COMP4 Vtoneout XMicP XMic N 47R COMP4 MicP MicN HF HFCM 330R 100k 100k 10k COMP2 Peep ...

Страница 11: ...accessory to 2 4 2 8 6 V No Loopset ref XMicN from accessory to phone 1 1 2 2 3 V Loopset connected ref XMicN Mic bias ON Ead hookint mbus Ext accessory detection Bias OFF 0 0 3 0 1 1 0 0 3 5 V Loopset connected ref GND Ead Hookint mbus Button closed DCT3 n Mic bias ON DCT4 0 7 0 1 0 0 8 0 1 2 V Loopset connected ref GND 3 2 XMicN Microphone signal 10 nF Series output capacitance 2 3 XEarN EAR Sig...

Страница 12: ...parts of LPS 3 ITEM Q TY CODE DESCRIPTION VALUE TYPE 1 0201489 Module lps 3 2 9780260 Loop set Cable LPS 3 DMJ00180 3 9451692 B cover DMD05510 4 9451691 A cover DMD05509 5 2 6290021 PT screw 1 8x8 feznTX6 6 9451693 Battery lid DMD05507 7 9451694 Button DMD05511 8 9380750 Type label Note The torque of the screws is 0 35 Nm ...

Страница 13: ...30784 Chip resistor 15 k 5 0 063 W 0402 R035 1430788 Chip resistor 22 k 5 0 063 W 0402 R036 1430778 Chip resistor 10 k 5 0 063 W 0402 R037 1430778 Chip resistor 10 k 5 0 063 W 0402 R039 1430804 Chip resistor 100 k 5 0 063 W 0402 R041 1430804 Chip resistor 100 k 5 0 063 W 0402 R042 1430812 Chip resistor 220 k 5 0 063 W 0402 R043 1430804 Chip resistor 100 k 5 0 063 W 0402 R044 1430778 Chip resistor ...

Страница 14: ...ic cap 100 n 10 16 V 0603 C053 2320584 Ceramic cap 1 0 n 5 50 V 0402 C221 2320779 Ceramic cap 100 n 10 16 V 0603 C261 2320546 Ceramic cap 27 p 5 50 V 0402 C262 2320546 Ceramic cap 27 p 5 50 V 0402 B001 5140117 Cond mic 45 3DB 33PF 2K D5 8 9 D5 8 9 0 Z001 3640035 Filt z 450r 100m 0r7max 0 2a 0603 0603 Z002 3640035 Filt z 450r 100m 0r7max 0 2a 0603 0603 T001 3640073 Af transformer for manual p p smd...

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