Nokia 5110 Service Manual

PAMS

Technical Documentation

NSE–1

System Module

Original  03/98

Page 3 – 12

1

VIN

Charger input voltage

DC–jack 
side contact
(DC–plug ring)

L_GND

Charger ground

DC–jack  
center pin

VIN

Charger input voltage

DC–jack
side contact
(DC–plug jacket)

CHRG_CTRL

Charger control output (from phone)

2

CHRG_CTRL

Charger control output (from phone)

Microphone
acoustic ports

Acoustic signal (to phone)

3

XMIC

Accessory microphone signal input (to phone)

4

SGND

Accessory signal ground

5

XEAR

Accessory earphone signal output (from phone)

6

MBUS

MBUS, bidirectional flash programming clock signal

7

FBUS_RX

FBUS, unidirectional flash programming serial data input 
(to phone)

8

FBUS_TX

FBUS, unidirectional flash programming serial data output
(from phone)

9

L_GND

Charger ground

1,3

VIN

7.25

3.25

320

7.6

3.6

370

7.95

16.9

3.95

420

V

V

V

mA

Unloaded ACP–7 Charger (5kohms
load)

Peak output voltage (5kohms load)

Loaded output voltage (10ohms load)

Supply current

7.1

3.25

720

8.4

3.6

800

9.3

3.95

850

V

V

mA

Unloaded ACP–9 Charger

Loaded output voltage (10ohms load)

Supply current

2

L_GND

0

0

V

Supply ground

4,5

CHRG_

CTRL

0

0.5

V

Charger control PWM low

CTRL

2.0

2.85

V

Charger control PWM high

32

Hz

PWM frequency for a fast charger

1

99

%

PWM duty cycle

6

MICP

N/A

see section Internal microphone

7

MICN

N/A

see section Internal microphone