Device Memories; Memory Package; Ape Memory (Pop3); Audio Concept - Nokia rx-34 Service Manual

RX-34
System Module

Device memories

Memory package

Package-On-Package (POP) memories refer to memories that are in separate package, and attached on top
of the processor.

APE memory (POP3)

RX-34's APE memory POP3 consists of DDR/MuxOneNAND combo memory.
DDR memory is using 32-bit interface and flash memory is using 16-bit muxed NOR interface.
• 1Gbit DDR + 2Gb MuxOneNAND
This capacity memories consist of three dies stacked on top of each other.

Audio concept

Audio concept
RX-34 contains integrated stereo speakers, a microphone, a 3.5mm round 4-pole Nokia AV connector interface
and a stereo FM-radio.
Figure 62 Overview of RX-34 audio system
The TI D4800 is the heart of the RX-34. Audio processing is handled by the application processor and it
basically controls the whole system.
Audio HW related components that are controlled directly by the application porcessor are TI TSC2303, FM-
radio, Bluetooth and WLAN radio chips.

Internal speakers

The application processor feeds audio data to the TSC2303 from EAC block via I2S interface.
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