Dc Connector; Slide Microphone; Slide Connector; Roller Interface - Nokia NSB-5 Series Technical Documentation Manual

PAMS Technical Documentation

DC Connector

The electrical specifications in Table 3 shows the idle voltage produced by the acceptable
chargers at the DC connector input. The absolute maximum input voltage is 18V due to
the transient suppressor that is protecting the charger input.

Slide Microphone

The microphone is connected to the slide by means of springs it has a microphone input
level specified in Table 2. The microphone requires bias current to operate which is gen-
erated by the COBBA_GJP ASIC.

Slide Connector

An Interrupt signal to MAD2WD1 determines whether the slide is in an open or closed
position.

Roller Interface

A mechanical solution is implemented and three interrupts are fed to the MAD2WD1.

Keys and Keymatrix

0–9, *, #, send, end, soft_1, soft_2, power_on_off, roller_push,

Headset Connector

The external headset device is connected to the system connector, from which the sig-
nals are routed to COBBA_GJP microphone inputs and earphone outputs.
NA MICN mounted in
slide
NA MICP mounted in
slide
Issue 1 03/01
Table 2: Mic signals of the system connector
0 2 12.5 mV
0 2 12.5 mV
Nokia Mobile Phones Ltd.
Connected to COBBA_GJP MIC2N input. The
maximum value corresponds to 1 kHz, 0 dBmO
network level with input amplifier gain set to
32 dB, typical value is maximum value - 16 dB.
Connected to COBBA_GJP MIC2P input. The
maximum value corresponds to 1 kHz, 0 dBmO
network level with input amplifier gain set to
32 dB, typical value is maximum value - 16 dB.
NSB-5
System Module
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