Mobile handset design in sub $100 category using state of art MediaTek 6737 chipset.

1. Handset Hardware Design
Development
Digital India Initiative - smart phone for masses
Presented as a outcome of 45 days Handset Design
training in Taiwan

2. Agenda
• Team introduction
• a booming economy- India
• Smartphone for Digital India
• Product features
• Hardware design
• Key part selection, schematic, MediaTek Module Design, memory, Sensor
• Product specification
• Conclusion
• Q & A
Mobile Handset hardware Design Development Training @ Taiwan 2

3. India at glance…
 1.26 billion strong human economy.
 Tele-density ~80% whereas urban areas has about 153.02% and
rural around 50.33%. Some metros has more than 200% tele-
density.
 More than 1000 million# telecom users
 204 million smartphone users (more then USA.)
 Still Smartphone penetration is under 20%
 Very impressive 28% CAGR* for the period 2013-2017
 More than 50% mobile-only* Internet users
* KPMG IAMAI Mobile internet vision 2017
# TRAI India
a booming economy
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4. Smartphone based Internet Economy
• Realising Digital India dreams thru smartphone
• Using Internet to access basic G2C services like tax
payment, licence registration or renewal, passport,
birth/death registration, etc.
• smartphones to be made within reach of a common-man.
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5. paperless, cashless, presence-less system for India
• "People will use mobile wallets rather than cards or cash to make
payments for their day-to-day shopping "
• Jitendra Gupta founder, Citrus Pay
• Market for mobile-enabled payments in India grew more than fifteen
times between 2012 and 2015 to reach its current size of $1.4bn
(£979m). by GrowthPraxis BBC
• 200 million registered mobile wallet accounts
• More than 1 lac bank branches but less then 20% in rural India
• "person-to-person money transfer will be a real game changer"
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6. Leapfrogging India
• ~100 million citizens has been issued Aadhaar
• Aadhaar authentication enrollment process was introduced in 2010
has fingerprint and Iris-based authentication technology
• Recently caught the imagination of the smartphone makers.
• "Iris is going to help with accuracy," Piyush Peshwani* . "People
who do a lot of manual work with their hands — their fingerprint
actually wears off, but the iris is something that still remains."
• Pain areas
• Mumbai's 250,000 rickshaws, barely 10% accept electronic payment.
* Piyush worked in building the Aadhaar platform from 2011 to 2013Mobile Handset hardware Design Development Training @ Taiwan 6

7. Leapfrogging India …
• India is mobile first market
• India is leapfrogging the traditional retail landscape for e-commerce,
says Kunal Bahl, CEO of Snapdeal.
• India’s E-commerce landscape is about 15-20% which is much above
the rest of the world stats.
• Online market is valued at $6.5 billion *
• Posted 90% YoY growth in its gross merchandise value
* Kunal Bahl speaking to CNBC Mobile Handset hardware Design Development Training @ Taiwan 7

8. Aadhaar-compliant device
• Korean manufacturer Samsung having 25% share of Indian
smartphone market in India according to IDC — is the only company
with an Aadhaar-approved device currently on the market.
• The Galaxy Tab Iris costs around $200 and features the sort of iris-
recognition technology the government would like to see embedded in
all devices aimed at the Indian market
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9. Aadhaar-compliant device …
• Indian fintech startup Simpal is developing ‘OctoPOS’ a sub-
$100 Android device that incorporates iris recognition
technology.
• Device is being manufactured in China.
• OctoPOS, combines the capabilities of a smartphone and a
payment device, designed for both consumers and
merchants.
• OctoPOS iris scanning engine has been certified by STQC Labs
• OctoPOS also has an integrated Near Field Communications
chip that can accept any RFID and contact list cards
realtime,path-breakingsystem
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10. Smart Phone to fulfill Digital India Dreams
• Android based smart phone
• RGB IR camera sensor for IRIS based authentication
for Aadhaar enabled monetary transactions
• Finger print sensor for Aadhaar authentication
• Braille enabled accessories for physical challenged
• Five figure Multitouch, Panic button
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11. Smart Phone to fulfill Digital India Dreams
• Android based smart phone in USD $100 category
• Best of the class SoC– MediaTek MT6737
• CPU – ARM Cortex-A53,1.25GHz, 4 core
• GPU – ARM Mali-T720 MP2, 600MHz
• RAM – 2 GB, 640 MHz
• Storage – 16 GB
• Display – 5in, IPS 720 x 1280 pixels 24 bit
• Battery – 3100mAh Non-removable Li-Po
• Modem : LTE FDD/TDD R9 CAT4 DC-HSPA+, TD-SCDMA/
EDGE, CDMA 2000
• Positioning – GPS, A-GPS
• Connectivity : WLAN/BT/FM/GPS
• Dimensions – 78 x 156 x 8.9 mm
• Dual SIM
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12. Google’s Android – Operating System
• Open source OS having Linux kernel
• Wide range of tools and apps (~2.2 million)
• Google chrome, maps, wide variety of apps support
• Google wallet, NFC support
• Google Now/Assistant
• Market leader, with industry
standard devices support
microSD card, charging, etc
Period Android iOS
Windows
Phone
2015 Q4 79.6% 18.7% 1.2%
2016 Q1 83.5% 15.4% 0.8%
2016 Q2 87.6% 11.7% 0.4%
2016 Q3 86.8% 12.5% 0.3%
5 year
CAGR
(forecast)
4.6% 1.0% -48.6%
Source: IDC, Nov 2016
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13. Hardware MT6737 System block
eMCP
eMMC
LPDDR3/LPDDR2
EMI/32bMSDC 0/8b
Mediatek MT6737
CA 53- 1.25 GHz
Application 2G/EDGE/WCDMA/
TDS/LTE Modem
CDMA Modem (MD3)
WiFi/Bluetooth/GPS
GPU
ARM T720 MP1
CA 53- 1.25 GHz
CA 53- 1.25 GHz
CA 53- 1.25 GHz
28 nm SOC
SIM Card 1
SIM Card 2
PMIC + Audio Codec
MT6328
Fast Pulse Charger
RTC / Backup
Battery
Micro
USB
Receiver
Mic1/Mic2
3.5mm Stereo
Audio Jack
Vibrator
Speaker
I2S
SPI
USB 2.0
2M
Sub camera
with IRIS
13M
camera I2Cx
MIPI CSI
MIPI
CSI
HD
(MIPI interface)
LCM
Capacitive Touch Screen
CTP controller I2Cx
MIPI DSI
NFC
MT6605
T-Flash
Accelerometer
ALS+PS Sensor
Gyro Sensor
Magnetometer
I2Cx
I2Cx
MSDC
Transceiver
MT6169
Connectivity RF
MT6625L
BT/WiFi/FM/GPS
RF FEM
or
ASM
Power Amplifier
BT/WiFi/FM/GPS
Antenna
Tuner
Tuner
LTE
Antenna
C2K/RXD
Antenna
BSI
I/Q
I/Q
I/Q
I/Q
Rx Tx
FE
MIPI
FE
MIPI
FE MIPI
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14. Chipset and key component list
Sensor
M Sensor AKM8963
Gyro Sensor L3G4200D
Proximity sensor CM36652
Accelerometer MC3413
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Item Part Number
AP MT6737
PMIC MT6328
Transceiver MT6169 & MT6158
Connectivity MT6630
Memory 16GB MT29TZZZ8D5JKEZB-107
Rear camera 13MP ​IMX135
Front camera 2MP
with IRIS sensor
OV2281
RF H/M/L PA ​SKY77643
RF TXM ​SKY77910

15. MT6737 features
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16. MT6737 features …
Power/Performance Optimization as a SoC :
Application-specific SoC design
• Reduced memory bandwidth & frequency
• Mixing High / Low Voltage transistors
• Twisting floorplan, routing, clock tree design
• Power gating/Clock gating/DVFS
• Four modes: Run, Standby, Dormant, Shutdown
• Fine-grained pipeline shutdown
• Faster register save and restore (state save/
restore)
• Power domains & voltage domains
• MT6737 promises a 10-20%
increase in performance
• 25% more efficient battery use
• 52% improved battery
efficiency during idle mode.
• 20~34% better GPU
Performance.
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17. Distribution of CPU Clock Speed
1.0 GHz to 1.3
GHz
18.8% Frequency
Most competitive PCBA Cost
MT6737 features
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18. Average Clock Speed By CPU
Core Count
4 Cores
Average CPU Clock
speed 1.77 GHz
The average clock speed by manufacturer
http://system-on-a-chip.specout.com/
Mediatek
Average CPU
Clock speed
1.77 GHz
MT6737 features
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19. embedded Multimedia Card (eMMC)
An eMMC Flash device is a non-
volatile, rewritable mass storage
device. It is used in consumer
products such as mobile phones,
PDAs, and digital cameras. Reasons
why eMMC Flash devices have
become widespread include:
Mobile Handset hardware Design Development Training @ Taiwan 20
eMMC Advantage
 High data storage capacity
 Easy to integrate into the host
system
 fast time-to-market
 high performance
 future-proof design
 multi-source availability
 The eMMC standard developed
by the MMCA and the JEDEC is
an open, royalty-free standard.

20. MT29TZZZ8D5JKEZB-107 - Micron
• Capacity: 8GB: eMMC and 8Gb: 1 x
8Gb LPDDR3
• Advanced 12-signal interface
• The eMMC and Mobile LPDRAM
devices are packaged with separate
interfaces
• Adjustable clock frequency & stop
capabilities.
• Hardware reset signal.
• e.MMC I/F clock frequency: 0 to 200
MHz
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21. Biometric Sensors
RGB IR Camera & Finger Print
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22. Motivation
• Still Majority of Indians are in Remote and Not Connected to
mainstream.
• Not aware and not able to access many of the services.
• Proving identity first step towards accessing public services
• Need to Improve governance.
• Illegal immigration
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23. The objective of Unique Identification
Authority of India (UIDAI) is to collect
the biometric and demographic data of
residents and issue a 12-digit unique
identity number called Aadhaar to each
resident. It is considered the world's
largest national identification
number project.
UID
Power of
identity
Enhanced
access to
services
Direct
benefits to
poor
Reach out
to marginal
groups
Eases
mobility
• UID mandate:
• Better public service delivery
• Financial inclusion
• Transparency
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Biometric Identity

24. Mobile Handset hardware Design Development Training @ Taiwan 25
G2C services based on Aadhaar

25. Product Specifications RGB IR
Mobile Handset hardware Design Development Training @ Taiwan 26
Part Number OV02281-GA4A
Resolution 1080p
Chroma B&W
Analog / Digital Digital
Power Requirement
Active: 126 mW
Standby: 166 µW
XSHUTDOWN: 1 µW
Temperature Range
Stable image: -20°C to +60°C junction temperature
Operating: -30°C to +85°C junction temperature
Interface MIPI serial output interface
Output Format 10-bit B&W RAW data
Optical Format 1/7.5"
Frame Rate
Full @ 30 fps
1080p @ 60 fps
1080x1920 @ 30 fps
Pixel Size 1.12 µm
Image Area 2214 x 2214 µm
Package COB, RW
Package Dimensions 4050 x 3400.2 µm

26. IR Sensor - Advantage
• Save Space
• Save Cost
• Avoid Parallax error
• Improve Reliability
• Detect High Speed Gesture
• Add security feature
RGB IR
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27. Finger Print

28. FPC1025 Touch Fingerprint Sensor
- FPC1025
● High scratch resistance and glossiness
● Compact size
● High accuracy of authentication
● 360° readability
● Supports Finger FlashTM.
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29. Key Parts Selection -sensors
• M Sensor- AK09911
• 3-axis electronic compass IC with high
sensitive Hall sensor technology.
• Built-in A to D Converter for magnetometer
data out
• · 14-bit data out for each 3 axis magnetic
components
• Gyro Sensor-ITG1010
• Monolithic X-, Y-, Z-Axis angular rate sensor
(gyros) integrated circuit.
• Fast Mode (400kHz) I 2C serial interface.
• 16-bit ADCs for digitizing sensor outputs.
• FIFO can be accessed through both I2 C and
SPI interfaces.
• On-chip timing generator clock frequency ±1%
drift over full temperature range.
• Flexible VDDIO reference voltage allows for
multiple I 2 C and SPI interface voltage levels
• VDD supply voltage range of 1.71 V to 3.6V
AK09911
ITG1010
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30. Key Parts Selection -sensors
• Accelerometer- MC3410
• low-noise, integrated digital output 3-axis
accelerometer.
• internal sample rate is fixed at 1024 samples / second..
• Low-noise architecture minimizes false triggering.
• I2C interface, up to 400 kHz
• RGB / PS Sensor-CM36652
• Operates CS and PS in parallel structure
• Low power consumption I2C (SMBus Compatible)
Interface
• Linearity CS response for easy design
• Spectrum close to real human eye responses
• Selectable Maximum detection range
(14422884576811536) lux with
highest sensitivity 0.022 lux/step
• Immunity to red glow (940 nm IR LED)
• Programmable ILED sink current
• Intelligent cancellation to reduce cross talk
phenomenon
• Smart persistence scheme to reduce PS response time
CM36652
Block dia- MC3410
MC3410
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31. Braille Touch
Rajesh
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32. Braille Touch – enabled smart phone
“India is now home to the world's largest
number of blind people. Of the 37
million people across the globe who are
blind, over 15 million are from India”
Times of India
• Top 5 smart
Phones For
Blind – 2016 –
But none
support brail
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33. Why & Why not Braille on smart phone ?
To read without braille, a person who is blind is entirely dependent on computers
with voice synthesizers or audio recording, neither of which is useful in every
circumstance. (CNIB) Braille brings sight to the visually impaired and blind.
-Indian Association for Blind
Braille reader accessary
• Low cost brail reader support for smart phone
• Reliable brail reader which supports all basic smart phone platform
“On a basic 5” touch screen with brail pad we can able provide minimum up
to 30 odd features without Multiplexing the keys”
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34. Braille Pad
Working Principle
Step 1:
Paste the brail screen guard pad
Step 2:
Enable the brail app to activate the brail
android app during startup
Step3:
Follow the GUI and braille pad key pad options
for obtaining the service
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35. Braille GUI
Main Menu:
For selecting major services
•Make / Receive call
•Send / Receive SMS
•Panic button
•Media service
•Surfing internet
•Location tracking
•Social media service
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36. How to Fix Braille Pad on Smart phone?
• The standard Braille pad can be easily made as a
part of screen guard with out much change in
price.
Two innovative ideas are presenting as a part of this
presentation
1. Make the brail pad print on the screen guard
• Advantage – Transparent and no additional attachment is required
2. Make the pad on standard braille supported transparent
paper and paste it on the screen guard
• Advantage more efficient touch for the blind user
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37. Demo & Development process
• We have designed and developed the braille pad prototype and Android
application/ driver for testing the feature
• Software / Hardware Tools for application development:
• Android App inventor from MIT Labs
• Test setup:
• Make a phone call using Braille pad:
• Braille pad pasted on MediaTek6737 based Wind phone
• Synchronized with online MIT App inventor tool and downloaded the
App to smartphone
• Result: Made a phone call successfully with the help of braille pad
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38. Conclusion
• Medium for supporting various G2C Aadhaar
based services.
• Economical solution for providing socio-
economic equivalence to visually impaired.
• Digidhan smartphone under USD $100
category.
• Leads to good governance for all.
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