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Número de pieza | ePH1382 | |
Descripción | Handwriting Recognition Microcontroller | |
Fabricantes | ELAN Microelectronics | |
Logotipo | ||
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No Preview Available ! ePH1382
Handwriting
Recognition
Microcontroller
Product
Specification
DOC. VERSION 0.2
ELAN MICROELECTRONICS CORP.
May 2007
1 page ePH1382
Handwriting Recognition Microcontroller
1 Introduction
The ePH1382 IC is an 8 bit RISC microcontroller embedded with a recognition core.
When connected to an external resistance type touch panel, the IC becomes suitable
for handwriting recognition application products, such as SMS, Stylus Remote
Controller, mobile phones, handwriting input device, etc. The ePH1382 has low power
consumption, low cost, and yet is capable of providing high performance rate of
recognition. These quality features are vital when there is shorter lead-time in
developing new handwriting recognition related products or pressure-sensitive screen
input devices.
2 Features
Product No. Package
Input
Output Interface
Remarks
ePH1382
1. Japanese SJIS Standard
1. Can recognize 10182 CJK
characters. Hiragana &
2. Simplified Chinese
CSP/
LQFP44 3. Hangul
4. ASCII
5. Gesture
Katakana, 170 characters.
Unicode UART 2. Can recognize up to 50
Chinese PyingIn characters,
2350 Hangul characters.
3 Block Diagram
義
義必又入火
Input Area
Candidates
義
Touch Panel-R Type
Touchpad
Driver
ePH series
Handwriting
Recognition
Module
UART
Interface
TX
RX
9600 baud rate
LCD
Panel
Mobile
Phone
Figure 3-1 ePH1382 Block Diagram
Product Specification (V0.2) 05.30.2007
(This specification is subject to change without further notice)
•1
5 Page ePH1382
Handwriting Recognition Microcontroller
8.4 A/D Conversion
VDD=3.0V, VDDA=3.0V, Ta=25°C, Fclk=12 × Fsample
Parameter
Symbol
Condition
Analog Input
Mux Leakage Current Imux
On/off leakage current,
Vin=0 or VDD
System Perfomance
Resolution
-
Integral Non-Linearity INL
Differential
Non-linearity
DNL
Offset Error
OErr
Gain Error
GErr
Missing Code
MC
Ivdd3
VDDA Supply Current
Ivdd4
Driver Current
IOH
Sink Current
IOL
–
–
–
–
–
–
VDD=3.0V, VDDA=3.0V,
Fsample=20kHz,
ADEN=1, VRS=1
ADEN=0, VRS=1
Xp, Yp (VDD= 2.9 ± 0.3V)
(Voh=VDD-0.2V)
Xn, Yn (VDD= 2.9 ± 0.3V)
(Vol=0.2V)
Min Type Max Unit
– 0.1 1 μA
– 10 – Bits
-2 – +2 LSB
-2 – +2 LSB
-4 – +4 LSB
-4 – +4 LSB
– – – Bit
– 0.5 0.7 mA
– – 1 μA
-20 -30 -45 mA
+20 +30 +45 mA
8.5 AC Electrical Characteristics
Condition: Ta=25°C, VDD=3.0 ± 0.3V
Parameter
Symbol
Condition
A/D Conversion (VDD=3.0V, VDDA=3.0V, Ta=-10~+60oC)
Throughput Rate
– VDD=3.0V, VDDA=3.0V
VDD=2.4V, VDDA=2.4V
Power Supply
Rejection Ratio
PSRR1+ Power noise: 1kHz,
100mV
PSRR1– Power noise: 1kHz,
100mV
Signal to Noise Ratio SNR
–
Min Type Max Unit
– – 80
ksps
– – 60
37 40
–
dB
43 46
–
51 54 – dB
Product Specification (V0.2) 05.30.2007
(This specification is subject to change without further notice)
•7
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet ePH1382.PDF ] |
Número de pieza | Descripción | Fabricantes |
ePH1382 | Handwriting Recognition Microcontroller | ELAN Microelectronics |
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