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PDF ePH1300 Data sheet ( Hoja de datos )
| Número de pieza | ePH1300 | |
| Descripción | Handwriting Recognition Microcontroller | |
| Fabricantes | ELAN Microelectronics | |
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ePH1300
Handwriting
Recognition
Microcontroller
Product
Specification
DOC. VERSION 2.1
ELAN MICROELECTRONICS CORP.
October 2006
1 page  
ePH1300
Handwriting Recognition Microcontroller
1 Introduction
The ePH1300 chip is an 8-bit RISC architecture microcontroller embedded with a
recognition core. When connected to an external resistance type touch panel, the chip
becomes suitable for handwriting recognition application products, such as SMS,
Stylus Remote Controller, mobile phones, handwriting input device, etc. The ePH1300
has low power consumption, low cost, and yet is capable of providing high performance
rate of recognition. These quality features are vital for shorter lead-time in developing
new handwriting recognition related products or pressure-sensitive screen input
devices.
2 Features
Product No. Package
Input
ePH1300
CSP/
LQFP44
1. Japanese SJIS Standard
2. ASCII
3. Gesture
Output
Unicode
Interface
UART
Remarks
Database based on
JIS-X0208-1990. ePH1300
can recognize 6355 Kanji
characters, 83 Hiragana and
86 Katakana characters.
3 Block Diagram
義
義必又入火
Input Area
Candidates
義
Touch Panel-R Type
Touch Pad
Driver
ePH series
Handwriting
Recognition
Module
UART
Interface
TX
RX
9600 baud rate
LCD
Panel
Mobile
Phone
Figure 3-1 ePH1300 Block Diagram
Product Specification (V2.1) 10.24.2006
(This specification is subject to change without further notice)
•1
5 Page 
ePH1300
Handwriting Recognition Microcontroller
8.4 A/D Conversion
(VDD=3.0V, VDDA=3.0V, Ta=25° C, Fclk=12*Fsample)
Parameter Symbol
Condition
Min Type Max Unit
Analog Input
Mux Leakage
Current
Imux
On/off leakage current, Vin=0 or VDD
– 0.1 1
µA
System Perfomance
Resolution
–
– – 10 – Bits
Integral
Non-Linearity
INL
– -2 – +2 LSB
Differential
Non-linearity
Offset Error
DNL
OErr
– -2 – +2 LSB
– -4 – +4 LSB
Gain Error
GErr
– -4 – +4 LSB
Missing Code
MC
– – – – Bit
VDDA Supply
Current
Ivdd3
Ivdd4
VDD=3.0V, VDDA=3.0V,
Fsample=20kHz, ADEN=1, VRS=1
ADEN=0, VRS=1
– 0.5 0.7 mA
– – 1 uA
Driver Current IOH
Xp, Yp (VDD= 2.9 ± 0.3V)
(Voh=VDD-0.2V)
-20 -30 -45 mA
Sink Current
IOL
Xn, Yn (VDD= 2.9 ± 0.3V) (Vol=0.2V)
+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=25oC)
Min Type Max Unit
Throughput Rate
VDD=3.0V, VDDA=3.0V
–
VDD=2.4V, VDDA=2.4V
– – 80
ksps
– – 60
Power Supply Rejection
Ratio
PSRR1+ Power noise: 1kHz, 100mV
PSRR1– Power noise: 1kHz, 100mV
37
43
40
46
–
–
dB
Signal to Noise Ratio
SNR
– 51 54 – dB
Product Specification (V2.1) 10.24.2006
(This specification is subject to change without further notice)
•7
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet ePH1300.PDF ] | |
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