Asics N5350 And N5351; Device Memories; Memory Package; Ape Memory (Pop3) - Nokia RX-44 Service Manual

RX-44
System Module
• Charge control circuitry
• Level shifter and regulator for USB/FBUS (Not used in RX-44)
• Current gauge for battery current measuring
• Integrated LED driver (Not used in RX-44)
• External LED driver control interface for Display backlight
• Digital interface (CBUS)

ASICS N5350 and N5351

ASIC N5350 (TUSB6010) is a physical layer of USB OTG transceiver IC including crystal oscillator, PLL, USB
controller (core), OMAP 2420 interface logic.
ASIC N5351 (TPS65030): a dedicated Power Management ASIC for USB OTG transceiver.

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-44'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
The device provides acoustical stereo audio output via integrated dynamic speakers and electrical calvanic
stereo audio output via 3.5mm Nokia AV interface. Analog audio signal capture is handled by internal digital
microphone and via Nokia AV interface using headset's microphone, such as Nokia HS-48.
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