Nokia 5320 Mobile Phone Teardown

Overview / Main Features

The Nokia 5320 mobile phone is a new XpressMusic model from the Finnish handset maker. Unlike other music phones from the Nokia XpressMusic line, the 5320 is one of the first to feature an advance operating system (Symbian/S60) indicating that advance OS features are starting to trickle down from premium handsets to more mainstream versions. The candybar 3G/HSDPA phone - by virtue of its software capabilities - handles not just music but also runs the N-Gage gaming platform as well as other S60 and Java based applications.

In terms of physical design, the 5320 XpressMusic does not break new grounds (Nokia rarely does at this segment of the market) but does offer ergonomic touches such as dedicated XpressMusic keys, a standard 3.5mm audio jack and high-speed USB connectivity for faster transfers.

Overall, the Nokia 5320 is a dual band UMTS/HSDPA, Quad band GSM/EDGE phone with a 2 display with 240x320 resolution and 2MP primary camera with LED flash with a CIF based secondary camera for video calling.

Mainstream mobile phone consumers with an orientation towards music functionalities

Released

Per press releases, first release in April of 2008.

Pricing and Availability Pricing - An unlocked version of the 5320 XpressMusic is available (at time of writing - Oct. 2008) through several online boutique mobile phone retailers for as low as $249. However, if the phone is sold through a network carrier in select global markets, the cost may be significantly reduced due to service provider subsidies.

Availability

- The Nokia 5320 is available in select world markets such as Europe and Asia.

Volume Estimations

For the purposes of this teardown analysis, we have assumed a lifetime production volume of 8M units.

As a reminder, teardown volume production assumptions are primarily used for our cost analysis in terms of amortized NRE and tooling costs, especially for custom components specific to the model being analyzed (mechanical components especially). Unless assumed, volumes increment by an order of magnitude. Minor changes in volume (say 1 million vs. 2) rarely have a large net effect on our final analysis.

iSuppli's Design Forecast Tool (DFT) and Market Shares

As part of iSuppli's Design Forecast Tool (DFT), we forecast handset shipments by major design feature and manufacture, as well as the number of design starts a manufacturer will have by feature set.

iSuppli estimates unit shipments of 168 million HSDPA handsets in 2008 global market. We further estimate 40 million units of 5 megapixel camera phones to ship in the 2008 global market. All estimates are based on a 2 year product life span assumption with an overall global market share of 38% for Nokia.

Main Cost Drivers Representing ~79% of total material cost

Texas Instruments - NMP #4377152 - DBB - Digital Baseband Processor

Display Module Value Line Item - 2.0' Diagonal, 16.7M Color TFT, 240 x 320 Pixels

Samsung Semiconductor - K5W2G1GACD-SL60 - MCP - 2Gb OneNAND Flash + 1Gb Mobile SDRAM

Primary Camera Module Value Line Item - 2.0MP, 1/3.3' Format, Fixed Lens

MM8GR01GUACY-NA - MicroSD Memory Card - 1GB

Battery - Li-Ion, 3.7V, 890mAh

ST Microelectronics - NMP #4380206 - RF Transceiver - Quad-Band GSM/GPRS/EDGE, WCDMA 850/2100

Unimicron - 8-Layer - FR4/RCF HDI, 2+4+2

ST Microelectronics - STV0984 - Video / Image Processor - 2 MegaPixel, SMIA Compliant CMOS Sensors, 0.13um

Broadcom - BCM2048KUBG - Bluetooth / FM Radio - Single Chip, V2.0+EDR, w/ FM+RDS Radio Receiver

Nokia - AC-8X - Charger - 5.0V, 890mA, w/ Cable Tie

ST Microelectronics - NMP #4396299 - ABB - Analog Baseband / Power Management

ST Microelectronics - VS6451 - Secondary Camera Module Value Line Item - CIF+ CMOS, 1/10' Format, Fixed Lens

Skyworks - SKY77514-20 - PAM - Quad-Band GSM/GPRS/EDGE

Handsfree Accessory - Stereo, w/ Single Control Button & Label

Keypad Assembly - Injection Molded Plastic Keys on Silicone Rubber Substrate, Silkscreened, Painted, w/ Mylar Insulator and Plastic Support Frame

ST Microelectronics - NMP #4376535 - Power Management - Battery Charger IC

Texas Instruments - TLV320DAC33IZQCR - DAC - Stereo Audio, w/ Integrated Headphone Amplifier

2-Layer - Flex Kapton, w/ Stiffener

Enclosure, Main, Rear Cover - Injection Molded ABS Polycarbonate, Black Painted, Silkscreened, Chromed

User Guide - 196 Pages Perfect Binding, Black & White Inside, Full Color on Front & Back Cover, 6.5' x 4.8'

USB Cable, w/ Cable Clamp & Label

Box - Full Color, 195 x 145 x 70.5mm (7.7' x 5.7' x 2.8')

National Semiconductor - LM3202TL - Regulator - DC-DC Converter, Step-Down, Adjustable, 650mA, 2MHz

Texas Instruments - TPA6130A2YZHR - Headphone Amplifier - Stereo, DirectPath, 138mW, w/ I2C Volume Control

National Semiconductor - LM3206TLX - Regulator - DC-DC Converter, Step-Down, 3.09V, 650mA, 2MHz

Material and Manufacturing $81.86

What Is Not Included in our Cost Analysis

The total materials and manufacturing costs reported in this analysis reflect ONLY the direct materials cost (from component vendors and assorted EMS providers), AND manufacturing with basic test. Not included in this analysis are costs above and beyond the material manufacture of the core device itself - cost of intellectual property, royalties and licensing fees (those not already included into the per component price), software, software loading and test, shipping, logistics marketing and other channel costs including not only EMS provider and the OEM's margin, but that of other resellers. Our cost analysis is meant to focus on those costs incurred in the manufacture of the core device and exceptionally in some circumstances the packaging and literature as well.

Manufacturing Notes

OEM/ODM/EMS Relationships / Manufacturing

According to iSuppli's ""Global OEM Manufacturing and Design Analysis - Mobile Handsets Q1 2008", Nokia conducts much of the final assembly in-house throughout their various global operations while utilizing EMS providers to source mobile handset modules and sub-assemblies. iSuppli estimates that nearly 60% of the sub-assemblies in handsets produced in 2007 were produced by their contract manufacturers.

Nokia maintains worldwide manufacturing operations in North America (Mexico), South America (Brazil), Asia Pacific region (Korea), Greater China, India and 4 other locations in both Eastern and Western Europe. iSuppli estimates that Nokia used 5 EMS providers in 2007 with Foxconn, Elcoteq and Jabil making up roughly 20% of Nokia's overall manufacturing capacity.

Country of Origin / Volume Assumptions

Based on markings, the unit indicates that it was ""Made by Nokia". However, from our understanding of mid tier handsets produced by Nokia, this handset likely came out of Hungary. Furthermore, we have assumed that custom mechanicals (plastics, metals, etc.) were sourced in Eastern Europe.

Country of origin assumptions relate directly to the associated cost of manufacturing, where calculated by iSuppli. In the cases of 'finished' sub-assemblies (such as display module), we do not calculate internal manufacturing costs, but rather assess the market price of the finished product in which case country of origin assumptions may or may not have a direct effect on pricing.

Remember also that labor rates are applied directly only to hand inserted components and systems in our bill of materials, and although regional assumptions do, these new rates do not have a direct effect on our modeled calculations of placement costs for automated SMD assembly lines. ""Auto" inserted components (such as SMT components) placement costs are calculated by an iSuppli algorithm which allocates a cost per component based on the size and pin-count of the device. This calculation is affected by country or region of origin as well.

Design for Manufacturing / Device Complexity

Nokia handsets, as a general rule, have fewer discrete mechanical and electronic components, for the same amount of functionality than their competitors. Furthermore, Nokia have a very modular approach to designs which make them simpler to manufacture, improving production cycle times and ease of re-work. In that context, the Nokia 5320 XpressMusic did not deviate from this design philosophy. With a component count of 539 (excluding box contents, of which, 132 are mechanical in nature), the 5320 XpressMusic was the lowest among the 5 phones in this comparative teardown analysis in terms of device complexity. Overall, this finding is consistent to the design and marketing strategy of this mid-tier handset.

Component counts have a direct bearing on the overall manufacturing cycle times and costs, and also can increase or decrease overall yields and re-work. Our calculations of manufacturing costs factor counts and more qualitative complexities in the design. The cost of manufacturing is also, to some extent, decreased in this case because of assumed labor rate applied for Eastern Europe.

Note that manual labor has a much smaller effect on auto-insertion assembly lines (for the Main PCB, for example), where manufacturing costs are much more capital equipment intensive and driven by these investment costs.

Design Notes

From a design perspective, the Nokia 5320 is the only handset in this competitive set of music handsets that runs an advance OS. However, looking at the hardware, you wouldn't notice that fact. Typically, we would expect to see an OMAP based co-processor within a handset design running S60 but this new iteration of Symbian (v9.3) enabled Nokia to pare down the hardware requirements and, thus, pushing smart phone functionalities into the feature handset territory - blurring the lines of distinction between what is a typically ""smart" phone and regular feature phone.

Overall, the Nokia 5320 runs a TI/ST Micro solution which is fairly typical of Nokia S60 handsets we've encountered in the past. A ST Micro video/image processor is used to power the onboard camera. The Broadcom Bluetooth and NXP USB solutions round out the major IC slots.

Here is a summary of the major components used in the Nokia 5320 design:

Main PCB

DBB

• Digital Baseband Processor - Texas Instruments - NMP #4377152

Memory

• MCP - Samsung Semiconductor - K5W2G1GACD-SL60

RF Transceiver

• Quad-Band GSM/GPRS/EDGE, WCDMA 850/2100MHz - ST Microelectronics - NMP #4380206

ABB / Power Management

• Analog Baseband / Power Management - ST Microelectronics - NMP #4396299

User Interface

• Video / Image Processor - ST Microelectronics - STV0984
• Bluetooth / FM Radio - Broadcom - BCM2048KUBG
• DAC - Texas Instruments - TLV320DAC33IZQCR
• USB On-the-Go Transceiver - NXP Semiconductors - ISP1504A1ET

PA

• PAM - Skyworks - SKY77514-20
• PAM - Skyworks - SKY77421-20

Display

• 2.0' Diagonal, 16.7M Color TFT, 240 x 320 Pixels

Primary Camera

• 2.0MP, 1/3.3' Format, Fixed Lens