Nokia 9210i Servicehandbuch

PAMS

Technical Documentation

RAE-5 

3. RF+System Module KL8 

Page 3 – 40

Issue 1 04/02

can be controlled individually with 2.8 V logic directly or through control register.
The regulator IC is located in the system block of the transceiver.

Use of the regulators is illustrated in the power distribution diagram Figure 12.

VREF_2 from CCONT IC and RXREF from COBBA IC are used as the refer-
ence voltages for HAGAR RF–IC, VREF_2 (1.5V) for bias reference and
RXREF (1.2V) for RX ADC’s reference.

This table shows used control signals for different functions and the typical cur-
rent consumption (VBATT = 3.7 V). All regulators except VXO are switched on
and off using the SYNTPWR control signals. The TX and RX blocks are
switched on and off under HAGAR control. These controls are accessed via se-
rial interface from MADLinda to HAGAR.

H

H

L

22 mA

Synthesizers

H

H

L

116 mA

RX active

H

H

L

171 mA

TX active except PA

H

H

H

1092 mA

TX active, PL5 to 50 ohm

All regulators which are connected to HAGAR are enabled simultaneously by
SYNTHPWR. In different modes the loads are switched on and off using HA-
GAR’s serial bus.

All control signals are coming from MADLinda and they are 2.8 V logic signals.

List of the needed supply voltages:

VR1

VXO

VCTCXO, Hagar (VDIGI)

VR2

VRX

HAGAR (VRF_RX, VF_RX)

VR3

VSYN_2

HAGAR (VLO, VPRE)

VR4

VSYN_1

HAGAR (VBB), LNA’s

VR5

VTX

HAGAR (TX modulator)

VR6

COBBA

VREF_2

HAGAR (VB_EXT)–voltage ref.

RXREF

HAGAR (VREF_RX)–voltage ref.

V5V

VCP

VCO, HAGAR (VCP)

TXVGSM (HAGAR)

Antenna switch GSM

TXVDCS (HAGAR)

Antenna switch DCS1800

TXVDET (HAGAR)

Power detector

Battery

VBATT

RF–regulators in CCONT, PA’s