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Wired Connectivity

Huawei E620 HSDPA Data Card Teardown

30 November 2012
The following is an overview of a teardown analysis conducted by IHS Technology Teardown Services.

Main Features

PCMCIA card supporting HSDPA (up to 1.8Mbps), UMTS 2100MHz and tri-band GSM/GPRS/EDGE. It provides concurrent voice and data service over supported air interfaces. Besides the connectivity, it also has a built-in program which support phone book, SMS inbox and call record storage.

Huawei E620 HSDPA Data Card - Disassembling Main PCBHuawei E620 HSDPA Data Card - Disassembling Main PCB
Overview


The Huawei E620 PCMCIA card supports 2G tri-band GSM network and 3.5G (HSDPA) networks and provides a relatively seamless internet connection for mobile PC users with PCMCIA slots.

Huawei E620 HSDPA Data Card - Disassembling Main PCBHuawei E620 HSDPA Data Card - Disassembling Main PCB
Target Market

Business users market - where data comm. "in the field" is critical. Th eprimary reason the target market is limited is due to the high retail costs of the hardware, and the elevated costs of network time usage.

Released

Uncertain - appears to have been released in late 2005 or early 2006.

Pricing and Availability

The card is offered by Vodafone in the UK for a subsidized price of £116 with a minimum 1-year contract. Unsubsidized or "unlocked" units could not be located for price.

Volume Estimations

We are assuming for the purposes of this analysis a lifetime (2 year) production volume total of approximately 500,000 units.

As a reminder, volume production assumptions primarily affect our cost analysis in terms of amortized NRE and tooling costs, especially for custom components specific to the model being analyzed (mechanical components especially).

Competing Products

There are currently about 25 data cards and 19 HSDPA mobile phones on the market as of July 2006, per the GSA.

There are multiple competitors including Motorola, Siemens Option Wireless Technology and Sierra Wireless are competitors for Huawei in this space and also have competing cards in the HSDPA space, including Option's Globetrotter series cards, and the Sierra Wireless AirCard 860 PC Card with competitive HSDPA data rates. Sierra also just introduced the AirCard 875 which is "3.6G" and has theoretical data rates up to 3.8Mbps.

Function / Performance

No testing was performed on the Huawei E620.

Huawei E620 HSDPA Data Card - Main PCB Top with Shieldings RemovedHuawei E620 HSDPA Data Card - Main PCB Top with Shieldings Removed
Cost Notes

Main Cost Drivers (Representing approximately 78% of total materials costs)

$29.50 - Qualcomm - MSM6275 - DBB - Digital Baseband Processor, Quad-Band GSM/GPRS, GPS, UMTS, HSDPA & Bluetooth

$7.70 - Samsung - K5D1257DCM-D090 - MCP - Flash 512Mb NAND + 256Mb SDRAM, Uniform Block, 2.6V/1.8V, 9ns@CL3

$4.56 - Compeq - - 8-Layer - FR4/RCF HDI, 2+4+2

$2.75 - Qualcomm - RTR6250 - RF Transceiver - ZIF, Quad-Band GSM/GPRS Transceiver and Tri-Band UMTS 800/1900/2100MHz Transmitter

$2.60 - NEC - μPD720101F1-EA8 - USB 2.0 Host Controller

$2.50 - AVX - BZ054B223ZS - Pulse Supercapacitor - BestCap Series, High Power, Ultra-Low ESR, 4.5V, 22mF

$2.50 - Qualcomm - RTR6200 - RF Transceiver - Dual Band GSM 900/1800MHz / GPRS Transceiver and UMTS 2100MHz Transmitter

$1.90 - Qualcomm - RFR6202 - RF Receiver - ZIF, Dual Band UMTS 800/2100MHz

$1.60 - Qualcomm - PM6650 - Power Management IC

$1.35 - Anadigics - AND0041R - PAM - Quad-Band, GSM850/EGSM900/DCS1800/PCS1900/GPRS/Polar EDGE

Subtotal of Main Cost Drivers ~$57

Total Materials Costs~$73

Materials and Manufacturing*~$79



* - The total materials and manufacturing costs reported in this analysis reflect only the direct materials cost (from component vendors and assorted EMS providers), manufacturing and test. Not included in this analysis are costs above and beyond the manufacture of the core device itself - cost of shipping, logistics, marketing and other channel costs including not only 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 (device, batteries, chargers, and some accessories, or packaging and literature) itself.

Manufacturing Notes

Country of Origin / EMS provider

This Huawei was produced (final assembly, that is) in China, per markings on the device itself. Considering Huawei is a Chinese manufacturer with repesct to subassemblies, unless specifically labeled, it was assumed that PCBAs and plastics, etc are also from domestic suppliers and EMS providers in China. We generally assume that where not noted, that sub-assemblies and some custom manufactured items (plastics, mechanicals, etc.) will be produced in the lowest cost region in the absence of proof to the contrary. We therefore assumed that the PCBA was assembled in China, and that the custom mechanical components were also produced in China. This is not known - and these are merely assumptions.

Design for Manufacturing / Complexity

The total component count of the Huawei E620 at 612 components is within the norms of other data cards we have analyzed, however, these were not HSDPA cards, and therefore this card is at the high end of the datacard spectrum of those seen (with component counts of low to mid 500's).

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 can also be affected by production volumes (which can increase or decrease the per unit amortized cost of certain NRE, tooling and other up-front charges). Manufacturingg costs are also affected by the country of final assembly, where our assumed loaded skilled (technical) and semi-skilled labor rates flucatuate greatly depending on the actual country of manufacture. (Note: We recently significantly increased the loading factor on our China labor rates, per industry feedback and a recent study by a major worldwide EMS provider).

Huawei E620 HSDPA Data Card - Main PCB Bottom with Shieldings RemovedHuawei E620 HSDPA Data Card - Main PCB Bottom with Shieldings Removed
Design Notes

The core chips used in this device are not new to us and several have been seen in many handset designs. In fact most of the core chips are the same found in the Samsung SGH-Z520. One

Here is a summary of the major components used in Huawei E620 data card design:

Main PCB

Baseband

  • Qualcomm - MSM6275 - Baseband Processor - Single Chip, Quad-Band GSM/GPRS, GPS, UMTS, HSDPA & Bluetooth

Battery / Power Management

  • Qualcomm - PM6650 - Power Management IC

Memory

  • Samsung - K5D1257DCM-D090 - MCP - Flash 512Mb NAND + 256Mb SDRAM, Uniform Block, 2.6V/1.8V, 9ns@CL3

Power Amplifier

  • Anadigics - AND0041R - PAM - Quad-Band, GSM850/EGSM900/DCS1800/PCS1900/GPRS/Polar EDGE
  • RF Micro Devices - RF5198 - PAM - WCDMA 1950MHz, Linear, 3V

RF Transceiver

  • Qualcomm - RTR6250 - ZIF, Quad-Band GSM/GPRS Transceiver and Tri-Band UMTS 800/1900/2100MHz Transmitter
  • Qualcomm - RTR6200 - Dual Band GSM900/1800MHz /GPRS Transceiver and UMTS 2100MHz Transmitter
  • Qualcomm - RFR6202 - RF Receiver - ZIF, Dual Band UMTS 800/2100MHz
  • Qualcomm - RFL6202 - Amplifier - LNA, Dual, UMTS 800/2100MHz

User Interface

  • NEC - μPD720101F1-EA8 - USB2.0 Host Controller


Huawei E620 HSDPA Data Card - Box Contents & AccessoriesHuawei E620 HSDPA Data Card - Box Contents & Accessories



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