1508(RM-388)
Baseband Description and Troubleshooting
Nokia Customer
Care
Issue 1
Copyright © 2008 Nokia, All rights reserved
ARM7TDMI® Control Processor (CP) supports the protocol stack,
user interface, and hardware interface processing. Two TeakLite®
Digital Signal Processors (DSPs): one DSP supports CDMA modem
processing, the second DSP supports CDMA voice processing
The main features of the CBP 5.6
z Supports CDMA2000® 1X (Release 0)
z Backward compatible to IS-95 standards
z Supports IS-2000 Quick Paging Channel for improved standby time
z Support for multiple CDMA band classes (Band Class 0/US-Cellular, Band Class
1/US-PCS, Band Class 3/JTACS, Band Class 4/Korean-PCS); support for
additional band classes which can be added upon customer request
z Special purpose logic provides signal processing, modulation, demodulation,
hardware accelerators and interfaces for keypad and display
z Mixed signal circuitry for the Rx analog-to-digital converter (ADC), Rx filter, Tx
digital-to-analog converter (DAC), Tx filter, internal PLLs, voice codec, auxiliary
ADCs, auxiliary DACs, RF control and 32.768 kHz oscillator
z Support for forward and reverse link data rates of up to 153.6 kbps (CBP5.6
only).
z Dual supply voltage (1.8 V digital core, 3.0 V analog and 3.0 V digital I/O)
z 3.0 V or 1.8 V external memory interface
z USB support (12 Mbps)
z Removable User Identity Module (R-UIM) compliant with IS-820
z 32-voice polyphonic ringer
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