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JA3514 –Keyboard & Mouse
Wireless Controller IC / Keyboard / Mouse
Dec, 2004
Overview
The JA3514 is a low-cost, highly
integrated, tri-band system-on-chip
targeted for wireless keyboard and mouse
applications. The JA3514 can be used as
a complete and high performance wireless
mouse, using minimum external
components. JA3514 can be used as a
wireless keyboard together with Keyscan
chip JA3518A. All necessary functions, the
RF transceiver, baseband, modem, control
Features
„ Tri-band, 27 MHz, 40 MHz and 49 MHz
single-chip radio
„ World-wide unlicensed RF band
„ Reliable, bi-directional data link
„ GFSK modulation
„ 64 kbps max data rate
„ Robust Interference Avoidance
„ Viterbi decoder
„ High tolerant frequency compensation
„ 8051 micro-controller
„ JTAG interface
„ 4-kByte SRAM
„ Mouse and keyboard applications
integrated in 16-kByte ROM
„ 18 programmable GPIO’s
„ Internal regulators & DC/DC converter
„ I2C, UART & SPI Serial Interfaces
„ Mouse interface (Quadrature signals,
SDIO
logic and I/O interfaces are on-chip. The
protocol stack and application software are
stored in the built-in mask ROM.
The wireless data link runs with very low
latency at data rates up to 64 kbps. The
system incorporates a proprietary media
access control (MAC) protocol that
provides highly reliable wireless data
transfers even in an environment with
several wireless users.
JA3514
Antenna
27/40/49
MHz Radio
CPU
16k
ROM
4K
RAM
GPIO
I2C
I/O UART
MODEM
SPI
Mouse/
Keyboard
MS/KB
Interface
JA3514 System Diagram
7 mm
2004 Jaalaa, Inc.
7 mm
Proprietary and Confidential

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Technical Specifications:
Operating Temperature
Operating Voltage
Frequency (Band 1)
(Band 2)
(Band 3)
Output Power (Peak)
Output Power Control
Receive Sensitivity @ 1% PER
Modulation/Demodulation
Power Consumption
Continuous Transmit Mode
Continuous Receive Mode
Sleep Mode
Multi-channels
Data Rate
Applications:
JA3515
PC
Transceiver
Controller IC
Dec, 2004
Min
-20
2.0
26.995
49.840
13.0
Typ.
+25
-
-
40.680
15.0
3
-105
GFSK
20
25
12
Max
+85
3.2
27.255
49.880
17.0
unit
°C
V
MHz
MHz
MHz
dBm
steps
dBm
mA
mA
uA
15
64 kbps
JA3514
Keyboard/Mouse
Controller IC
Keyboard & Mouse
JA3514
Device
Controller IC
GamePad, Joystick
JA3515
Transceiver
TV Controller IC
JA3514
Device
Controller IC
Remote Control
For more information please contact:
JAALAA, Inc.(Tel) 858-824-6307 E-mail: info@jaalaa.com Website: www.jaalaa.com
2004 Jaalaa, Inc.
Proprietary and Confidential