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Nokia 3000 User Manual

Nokia 3000
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Figure 22 Linko RF block diagram
The RF block uses RF ASIC N7512 that performs the RF back-end functions of receive and transmit function of
the cellular transceiver.
QuBBE
The front end module called QuBBE contains the needed front end filters and the switches. QuBBE contains:
3 duplexers (Band II, V, VIII)
1 triplexer (Band I, IV)
12 switches with the control
Low and high band GSM TX low bass filters
50 ohms low and high and antenna interface
The control signals for the switches come from Älli.
Receiver (RX)
Linko RF has higher integration level compared to previous RF generations and especially more digital design
blocks have been integrated to Älli, RF Asic.
Älli contains the receiver chain from LNAs to digital base band interface. Digital RX baseband interface
contains four data and one clk signals. The data rate and clock frequency depend on the use case.
The main blocks in Älli are:
LNAs: Balanced inputs for 850, 900, 1800, 1900, 2100 bands
Passive mixer
Analog baseband: Programmable for different modes
ADC: Programmable Sigma Delta Modulator topology ADC
RX Digital Front End (RXDFE): Contains for example digital filtering, DC offset compensation, wide/
narrowband power measurement blocks
There is integrated external LNA matching on the bands 900, 1800, 1900 and 2100. On 850 band, there is an
integrated matching.
RM-781
System Module
Page 5 – 16 COMPANY CONFIDENTIAL Issue 1
Copyright © 2011 Nokia. All rights reserved.

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Nokia 3000 Specifications

General IconGeneral
NetworkGSM
SIMMini-SIM
PhonebookYes
Call recordsYes
WLANNo
2G bandsGSM 900 / 1800
Alert typesVibration
MessagingSMS
GamesYes
BatteryRemovable battery
ColorsBlack, White, Pink, Blue, Green
StatusCancelled

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