ACCO M01043 Hands-Free Car Kit for iPhone & BT Phones User Manual PES K33441 030308x

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Date Submitted	2008-12-22 00:00:00
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Product Engineering Specification
K33441 ET-CLA
Document Title
Document Number
Prepared By
Reviewed By
Last Modified
Creation Date
Revision
Status
Confidential
Product Engineering Specification
PES-K33441
Matthew Hoag
Betsy Diaz
March 3, 2008
November 22, 2007
0.3
Draft
Product Engineering Specification
Document
PES-K33441
Rev
0.3
March 3, 2008
Revision History
Modified By
Matt Hoag
Gary Wong
Matt Hoag
Date
January 11, 2008
January 22, 2008
March 3, 2008
Revision
0.1
0.2
0.3
1.0
1.1
1.2
Reason for Change
First Draft
Detail BT behavior
iPhone & TDMA scheme
Released
Modified
Modified
Product Information
Product Name
Product Description
Product Number
Product Manager
Project Manager
Codename: ET -CLA
CLA mounted BT Handsfree kit
K33441
Kevin Ngo
Matthew Hoag
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Product Engineering Specification
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Table of Contents
1.0 Introduction .............................................................................................................................. 4
1.1 Scope .................................................................................................................................... 4
1.2 Purpose ................................................................................................................................. 4
1.3 Reference .............................................................................................................................. 5
1.4 Acronyms .............................................................................................................................. 5
2.0 Functional Specifications ....................................................................................................... 6
2.1 General Description .............................................................................................................. 6
2.2 System Diagram .................................................................................................................... 6
2.3 Button Functions ................................................................................................................... 7
2.4 Display Functions .................................................................................................................. 7
3.0 Electrical Specifications ......................................................................................................... 8
3.1 General Description .............................................................................................................. 8
3.2 Interface Description ............................................................................................................. 8
3.3 Power Requirements ............................................................................................................. 8
3.4 BT Requirements ................................................................................................................ 10
3.5 Audio Requirements Echo & Noise Cancelling ................................................................... 10
3.6 Audio Requirements TDMA Noise ...................................................................................... 11
4.0 Mechanical Specifications .................................................................................................... 12
4.1 Industrial Design Considerations ........................................................................................ 12
4.1.1 Usability ....................................................................................................................... 12
4.1.2 Logos and Other Markings .......................................................................................... 12
4.2 Component and Assembly Specifications ........................................................................... 12
4.3 Bill of Materials .................................................................................................................... 12
4.4 Material Specifications ........................................................................................................ 12
4.5 Tooling Specifications ......................................................................................................... 13
4.6 Compliance and Recycling Requirements .......................................................................... 13
4.7 Product Labelling Requirements ......................................................................................... 13
5.0 Software Specifications ........................................................................................................ 14
5.1 General Specifications ........................................................................................................ 14
N/A............................................................................................................................................. 14
5.2 Compatibility Requirements ................................................................................................ 14
5.3 Installation Requirements .................................................................................................... 14
6.0 Product Packaging, Labelling and Documentation ........................................................... 15
6.1 Packaging Name ................................................................................................................. 15
6.2 Box Structure Materials Specifications................................................................................ 15
6.3 Bill of Materials of Packaging .............................................................................................. 15
6.4 Sample Photo of Prior Design ............................................................................................. 15
6.5 Sample Photo and/or Drawing of ALL die cut components ................................................ 15
6.6 Sample Photo and/or Drawing of Assembly of all Component parts .................................. 15
7.0 Environmental Specifications .............................................................................................. 16
8.0 Regulatory Requirements ..................................................................................................... 17
8.1
Region Regulatory Requirements ................................................................................. 17
8.2
Environmental & Energy Compliance Requirements .................................................... 17
8.3
OEM Specific Requirements ......................................................................................... 17
9.0 Quality Requirements ........................................................................................................... 18
9.1 Design Workload ................................................................................................................. 18
9.2 Reliability Requirements ..................................................................................................... 18
9.3 Acceptance Quality Level.................................................................................................... 18
10.0 Approval ............................................................................................................................... 19
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1.0 Introduction
ET- Visor is a Bluetooth enabled automotive speaker phone which is mounted at the vehicle’s
CLA power port. The controls on the product & the pairing process are “Smart Made Simple”
…….
Figure 1 – Preliminary product images
1.1 Scope
This document outlines the Electrical Specifications, ID Considerations, Mechanical
Specifications and Tooling Requirements necessary to produce the product.
1.2 Purpose
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1.3 Reference
a) Product Requirement Document, V1
b) KTG-QA-G005-03 – Kensington Environmental Test Specification, April 18, 2007,
Revision 0.3
c) Other reference documents
1.4 Acronyms
Table 1 - Acronyms
Acronym
Description
ESD
EMC
FCC
Electrostatic Discharge
Electro Magnetic Compatibility
Federal Communication Commission
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2.0 Functional Specifications
2.1 General Description
ET is a hands free speakerphone that allows a user to answer/make a phone call without needing
to access the phone itself through Bluetooth. The unit is powered via the vehicle’s CLA 12V
Power port.
2.2 System Diagram
ET CLA BT Handsfree
Major components;
-BC05 BT Module
-Li-Ion Charging Circuitry
-iPhone charging circuitry in USB Port
-Speaker
-Mic with Noise cancellation
-Volume slider
Mic with noise
cancellation
USB Port for
charging other
devices.
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2.3 Button Functions
1. -Speed dial buttons: x 3
a. -When on a call, if the user presses & holds a speed dial button, the number for
that call is stored in memory.
b. -When not in a call, if the user briefly presses the speed dial button, that number
will be dialled by the cell phone and the call will be connected to the BT
handsfree kit.
c. If an incoming call is from one of the Speed dial numbers, the LED behind the
speed dial button will flash.
2.
3.
4.
5.
-Call/Answer & -Call End (One button)
-Volume slider (rheostat)
-Power
-Pair (recessed) / Driver Swap
a. Press and hold to start pairing process with a new phone.
b. Quick press to disconnect from currently paired phone & attempt to reconnect
with the next phone in the buffer.
See interface specification for more detailed description of button functions & actions.
2.4 Display Functions
Indicators LEDs
-Power on / Low power
-Pairing Mode/ Paired
-Speed dial Presets (3x)
See interface specification for more detailed description of button functions & actions.
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3.0 Electrical Specifications
This product is a basic BT-Handfree kit which is power directly from an automotive CLA power
port. This product will be approved under Apples Works with iPhone Program. This program
requires:
-Automotive chargers for iPhone must meet very specific specifications for the power supplied
and must show a resilience to power surges.
-Products with speakers must show that they do not pick up the TDMA interference from an
iPhone & amplify it within the speaker
3.1 General Description
3.2 Interface Description
interaction_101207_
flowchart.pdf
3.3 Power Requirements
Must be powered by 10-14V
-Plugs into 12V power socket of car
-Fused 2AMPS SMT Quick burn
-Includes USB Power circuit which meets the following iPhone 5V power requirements
(Kensington will provide proven reference design to meet these requirements:
In order to reduce PCB space an SMT type fuse it to be used, rated to 2 Amps.
• The CLA power is to drive the electronics on ET and also provide 500mA – 5volt power to
the USB port.
• The CLA power supply for the USB shall meet the following technical requirements:
a. Input Surge
1. While the circuit is operating at MAX load and Min load the line
voltage is switched to the surge voltage
a. 12Vdc to 40Vdc for 16msec, back to 12Vdc. Repeated 5
times at 50% duty cycle
2. There shall be no component damage, Voltage / logic signals
shall remain within specified limits, No loss of performance and
no permanent damage.
b. Identity line Signals (USB)
1. With no load on the circuit measure the voltages on D+ and D2. The voltage must fall within the below limits
a. D+ : 1.91V to 2.12V
b. D-: 1.91V to 2.12V
c. Load / Line / Regulation
1. While the load on one output is increased in steps to a
predetermined table, the output voltage deviations are noted.
Test is repeated for different input voltages
2. Output Voltage range
a. Vmin=4.85v
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Product Engineering Specification
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Input Voltage
(Vdc)
10V
12V
14V
0.0A
PES-K33441
b. Vnom=5.0v
c. Vmax=5.25v
Regulation (V)
0.25A
0.50A
Rev
0.3
0.70A
Na
Na
Na
March 3, 2008
1.0A
Na
Na
Na
d. Dynamic Line Response
1. The PSU is subject to a +2Vdc line variation. The output loads
are chosen to give the worst case condition. No load capacitors
shall be used.
2. The PSU should not undershoot or overshoot beyond the
regulation limits (4.85Vmin, 5.25 Vmax)
e. Turn off/on Characteristics
1. All timing are to measured with a 5uF capacitive loading and 12V
DC input voltage.
a. Turn-on delay after DC input applied: T1<4.0 sec at
which point the output voltage must have stabilized
between 4.85 and 5.25 V DC.
b. Output rise time (10% to 90% regulation): T2 <20ms
2. All parameters must be within specification
a. The output voltage overshoot upon the application or
removal of the input voltage shall be less than 10%
above the nominal voltage.
b. There must be a smooth and continuous ramp of the DC
output voltage from 10% to 90% of its final set point
within the regulation band, while loaded as specified in
section 3.3.b. No voltage of opposite polarity shall be
present on any output during turn-on or turn off.
f. Fuse Protection
1. A fuse must be present at the input of the circuit so as to protect
the circuit under any fault condition.
g. Short Circuit
1. A short circuit is defined as less than 0.01 Ohm resistance
between the output terminals. The PSU is submitted to a short
circuit at minimum load
2. The output shall Hiccup or Foldback if any of the outputs are
shorted to the secondary common. No damage shall result.
Output shall recover after the short is removed.
h. Overcurrent:
1. The load is increased on one output from its maximum value to
an estimated over current value in several steps at a rate of 0.1
A/sec. The test is repeated at different input voltages.
2. Overload currents applied to each tested output rail will cause
the output to trip before they reach any point of damage to the
circuit. For testing purposes the overload currents should be
ramped at a minimum rate of 0.1 A/sec starting at full load.
3. The limit during overload condition also applies to any single
fault condition.
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3.4 BT Requirements
Chipset: CSR BC05
BT 2.1
Up to 8 Paired devices. One at a time
3.5 Audio Requirements Echo & Noise Cancelling
•
•
Audio Out: Speaker
o Power (minimum) : 1W continuous, 2W peak.
o Sensitivity (SPL): min 82 +/- 3dB
o Impedance: 8 Ohm +/- 15%
o Lowest resonant frequency [Fo]: 280 – 480 Hz
o Effective frequency Range (minimum): Fo – 10kHz
o THD < 3%
Audio In: measurement method tbd
o Generally the intent is to filter out all external noise factors including but not
limited to:
• Road Noise
• Car Noise
• Wind Noise
• Tire Noise
• Echo
• Other ambient noises
o The prime audio solution (firmware based) for ET will be provided by Primax
o Echo rejection: >42 dB
o Convergence in presence of back ground noise: < 1.0 sec
o Noise Cancellation: 12 dB
o No Distortion or speech clipping
o Comfort noise injection for natural sounding conversations
o Enhanced Non-linear processor for suppression of residual echo
o Microphone:
• Omni directional microphone to be used
• To be isolated via a rubber “boot” to prevent vibration transmission
• Not to be rigidly mounted to the PCB, should be mounted to the plastics
and attached to the PCB via flying leads
• RF filtering a must to reduce TDMA noise issues
• 6mm diameter microphone to be used
• Microphone SNR to be min 55 dB
• The microphone is to be located on the front face plate for optimum user
orientation.
• Sensitivity greater than -45 dBV at 1KHz
• Reference Microphone:
• Kingstate Microphone with flying leads.
• KECC2244WBL-G9U
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3.6 Audio Requirements TDMA Noise
o ET-CLA must include significant defences against TDMA noise generated by the
iPhone. TDMA noise from the iPhone must not be transmitted to the user via the
speaker on the ET-CLA. The TDMA noise is tested by following the test
procedure written in the iPhone accessory specification R4.
o TDMA noise test is done by playing the Apple 1000Hz test tone from a BT
enabled source through the speaker of ET-CLA so that a defined SPL is
measured. The tone is then played at that volume setting while loading a web
page (www.apple.com) on the iPhone using the EDGE network. The iPhone is
connected to ET-CLA via USB charging cable. This test must be completed in
an Audio lab with a noise floor of 30dB or less. A microphone is connected to a
laptop via an external USB sound card & Spectraplus records the combined
1000Hz tone & any resulting TDMA noise. The resulting audio image from the
speaker is analyzed and the signal to noise ratio between the 1000 Hz tone and
the TDMA must be greater than -70 dB.
o Kensington has designed audio circuits to be resilient to TDMA noise in the past.
In general it is necessary to correctly shield the audio cables and properly isolate
the audio ground plane from any traces which may act as antennae and any
ground planes that are directly connected to the iPhone. Details of past
successful design strategies and a reference design will be provided by
Kensington.
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4.0 Mechanical Specifications
Describe product mechanical specifications in this section, such as product Industrial Design,
dimension, mechanical construction design, mechanical components design and assemble,
product housing, color and finish, and so on. 3D design images are preferred to show the details
of the design. You may add sub-sections as needed.
4.1 Industrial Design Considerations
4.1.1 Usability
4.1.2 Logos and Other Markings
4.2 Component and Assembly Specifications
Mechanism for allowing the user to orient the speaker towards them.
Rotating swivels and pivoting hinges must include “detents” so that speaker will remain in position
even when subjected to the vibrations that are commonly experienced in automobile when it hits
a large bump on the road.
4.3 Bill of Materials
For a detailed Bill of Materials refer to the document BOM-KXXXXX-RX
4.4 Material Specifications
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4.5 Tooling Specifications
4.6 Compliance and Recycling Requirements
4.7 Product Labelling Requirements
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5.0 Software Specifications
5.1 General Specifications
N/A
5.2 Compatibility Requirements
Mobile phones supporting Bluetooth 2.0 specification and Handsfree or Headset profiles.
5.3 Installation Requirements
N/A
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6.0 Product Packaging, Labelling and Documentation
Describe product packaging, labelling and documentation requirement in this section. You may
add sub-sections as needed. In this section, you may need to specify the specifications for
packaging material, provide the BOM of the packaging and photos or drawing of the assembly
components of the packaging. You may also need to specify the requirement of using Kensington
Logo and product labels on packaging.
6.1 Packaging Name
6.2 Box Structure Materials Specifications
6.3 Bill of Materials of Packaging
6.4 Sample Photo of Prior Design
K33408.ppt
6.5 Sample Photo and/or Drawing of ALL die cut components
Insert photos and/or drawings here.
6.6 Sample Photo and/or Drawing of Assembly of all Component parts
Insert photos and/or drawings here.
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7.0 Environmental Specifications
This product shall comply with, at least but not limited, the environmental specifications selected
in this section.
Please refer to the reference b) which is the “KTG-QA-G005-xx – Kensington Environmental Test
Specification” document for the details of each test case. The ‘xx’ here means the latest revision
of this document.
Environmental test cases selection table
Test
Test Case Name
Case No.
Drop test without package
Drop test with package
Vibration test without package
Vibration test with package
Shock without package
High temperature (operating) test
Low temperature (operating) test
Thermal shock test
High temperature (storage) test
Low temperature (storage) test
10
Humidity cycling (storage) test
11
12
Switch life cycle test
Key/Button life cycle test
13
Scroll Wheel life cycle test
14
15
Battery cover/door endurance test
Insert parts endurance test
16
Cable bending strength test
17
Cable pull strength test
18
19
Cable and part joint strength test
Paint surface chemical resistance test
20
Paint surface abrasion test
21
22
Paint surface adhesive ability test
Surge voltage test
23
Supply voltage fluctuation test
24
25
Reverse voltage test
ESD test (Direct Discharge)
26
ESD test (Indirect Discharge)
27
28
ESD test (Actual Use)
Note:
Mandatory
Test
Optional
Test
Comments
Mandatory Test: tests must be conducted on this product.
Optional Test: tests are optional to this product.
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8.0 Regulatory Requirements
8.1 Region Regulatory Requirements
Product manager shall select the corresponding marketing area for this product to insure that
region regulatory compliance requirements are met for the following target markets.
Project managers shall request contract manufacturers to complete the Product Compliance
Certification Summary KTG-QA-S001 by the end of the final design stage.
Africa - List countries:_______
Asia - List countries:_Hong Kong, Japan, Malaysia, Singapore
Australia
Canada
Europe - All European Union countries requiring CE mark
Europe – Other Non European Union countries - List countries:______
South America - List countries:______
USA
Mexico
Middle East - List countries:_______
Russia
Other countries:________
8.2 Environmental & Energy Compliance Requirements
Please select from the following list for the Environmental & Energy Compliance required for this
product. If there is other requirement, please add description below.
RoHS Directive 2002/95/EC (Europe)
WEEE Directive 2002/96/EC (Europe)
Energy Star (USA)
Lead-Free (USA)
8.3 OEM Specific Requirements
Dell Specific Requirements
HP Specific Requirements
Apple Specific Requirements
Other, please specify …
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9.0 Quality Requirements
Please describe the quality requirement for this product below. The example subsections are
given as a reference. Author may change these subsections or add more requirements according
to the corresponding product.
9.1 Design Workload
This product is designed to be capable of operating 24 hours a day, 365 days a year under the
specified environmental conditions defined in section 7.1 and 7.2.
9.2 Reliability Requirements
The reliability of this product shall be measured by MTBF (mean time between failures). It is the
average time that this product is being used under its specific operating conditions before a
failure occurs since last failure happened. It is measured in hours.
The MTBF of this product is > ?????? hours.
Note: The MTBF value is related to product design and manufacturing. It can be estimated based
on the life accelerated tests. So when the product is in pre-production phase, the product life
accelerated tests must be applied to ensure the required MTBF value is achievable.
9.3 Acceptance Quality Level
The MIL-STD-105E shall be used as the standard of making the random sampling inspections for
product manufacturing. The minimum Acceptance Quality Level for this product is defined as
following:
Critical defects: no critical defect is acceptable
Major defects: AQL
Minor defects: AQL
The author should define the AQL value based on the product characteristics.
Defects Classification:
Critical: likely to result in unsafe condition or contravene mandatory regulation (no critical defect is
accepted).
Major: reduces the usability of the product or is an obvious appearance defect.
Minor: doesn’t reduce the usability of the product, but is a defect beyond the defined quality
standard.
The author can define these three types of defects in more detailed if it is necessary.
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10.0 Approval
After this document has been reviewed by all related manager and engineers listed below, and
the document has been refined based on review comments, this document should be signed and
approved by all required approvers.
Approvals
Department Approval
required if checked
Name
Signature
Approved
Rejected*
Project Manager
Product Manager
Operation Manager
Product Development
Senior Design Engineer
Quality Assurance
* If someone rejected the approval, please describe the reason here.
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