Nokia 5110 Service Manual

PAMS

Technical Documentation

NSE–1

System Module

Original  03/98

Page 3 – 8

1

VIN

Charger input volt-
age

Charger input cur-
rent

7.1

720

7.24

320

 

8.4

800

7.6

370

9.3

850

16.0

420

V/ Unloaded ACP–9 Charger

mA/ Supply current

V/ Unloaded ACP–7 Charger

mA/ Supply current

DC–
JACK

L_GND Charger ground

input

0

0

0

V/ Supply ground

DC–
JACK

VIN

Charger input volt-
age

Charger input cur-
rent

7.1

720

7.24

320

8.4

800

7.6

370

9.3

850

16.0

420

V/ Unloaded ACP–9 Charger

mA/ Supply current

V/ Unloaded ACP–7 Charger

mA/ Supply current

DC–
JACK

CHRG
CTRL

Output high volt-
age

PWM frequency
output low voltage

2.0

0

32

2.8

0.5

V/ Charger control (PWM)
high

Hz /PWM frequency for
charger
V

2

CHRG
CTRL

Output high volt-
age

PWM frequency

2.0

32

2.8

V/ Charger control (PWM)
high

Hz /PWM frequency for
charger

Mic
ports

Acoustic signal

N/A

N/A

N/A

Microphone sound ports

3

XMIC

Input signal volt-
age

60

1 Vpp

mVrms

4

SGND

Signal ground

0

0

mVrms

5

XEAR

Output signal volt-
age

80

1 Vpp

mVrms

6

MBUS

I/O low voltage

I/O high voltage

0

2.0

0.8

2.8

Serial bidirectional control
bus.
Baud rate 9600 Bit/s

7

FBUS_
RX

Input low voltage

Input high voltage

0

2.0

0.8

2.8

V/ Fbus receive.

V/ Serial Data, Baud rate
9.6k–230.4kBit/s

8

FBUS_
TX

Output low voltage

Output high volt-
age

0

2.0

0.8

2.8

V/ Fbus transmit.

V/ Serial Data, Baud rate
9.6k–230.4kBit/s

9

L_GND Charger ground

input

0

0

0

V/ Supply ground