IRC1802 [INFINEON]
VFIR 16 Mb/Sec Controller and Transciever; VFIR 16 MB /秒控制器和Transciever
| 型号： | IRC1802 |
| 厂家： | 
Infineon |
| 描述： | VFIR 16 Mb/Sec Controller and Transciever |
| 文件： | 总4页 (文件大小：139K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
VFIR 16 Mb/Sec
Controller and
Transciever
How Fast Do You Want to Go?
N e v e r s t o p t h i n k i n g .
IRC 1802
IrDA Communications Controller
for SIR, MIR, FIR and VFIR
Features
■ IrDA 1.x, HP-SIR, and Sharp ASK
Synchronous MACRO Bus Interface
compliant
Synchronous Bus boundary
■ Supports all IrDA data rates up to Very
Fast IR (VFIR), 16 Mb/s
Tx Bus Mastering
and 16 x 8 FIFO
Register
access logic
Rx Bus Mastering
and 16 x 8 FIFO
■ High performance hardware based IrDA
Synchronous
8 MHz Boundary
SIR Link Access Protocol (IrLAP)
Tx Frame
Controller
Rx Frame
Controller
■ Host Direct Memory Access (DMA) and
Tx and Rx
Regs
Shared Memory modes
CRC
Gen
CRC
Chk
■ Burst packet transmission and recep-
Rx Data Interface
tion for all data rates
■ Hardware transceiver Serial Interface
(SIF) programming
SIR
Tx
Cntl
MIR
Tx
Cntl
VFIR
Tx
Cntl
FIR
Tx
Cntl
FIR
Rx
Cntl
VFIR
Rx
Cntl
MIR
Rx
Cntl
SIR
Rx
Cntl
■ Direct interface connection to all
vendors Infrared Transceiver modules
■ Support for dual channel transceivers
■ General purpose I/O pins for external
HP /
Sharp
Mod
HP /
Sharp
Dem
MIR
Mod
VFIR
Mod
FIR
Dem
FIR
Dem
VFIR
Dem
MIR
Dem
device control
■ ISA Plug and Play (PnP) and PCMCIA
bus interface
■ Single 48 or 96 MHz external clock
Single / Dual Channel Transceiver Interface
input
■ 3.3 V supply voltage
■ Small 100-pin Thin Quad Flat Pack
Tx
SD / CLK
VFIR FIR Rx
SIR Rx
(TQFP) package
I R C 1 8 0 2 B L O C K D I A G R A M
The IRC1802 is a low-cost, highly inte-
grated SIR, MIR, FIR and Very Fast Infrared
(VFIR) communications
The Host Interface module connects to an
ISA bus or PCMCIA bus. It contains the
bus interface logic, system configuration
registers, power management circuitry, and
local DMA control functions. The IRC1802
supports two modes of block data
transfer: Host DMA and Shared Memory
Buffer. In Host DMA mode, data is
transferred using the host system’s DMA
controller. In Shared Memory mode, data
is first buffered in local RAM, then read by
the host during receive-mode or shifted
out to the infrared link during transmit-
mode.
■ Burst packet transmission and recep-
tion support for all data rates Burst
data transfer consisting of multiple IrDA
frames are accomplished by adding
control headers to the desired outgoing
data frames and arranging them
controller capable of supporting IrDA 1.x
infrared modulation schemes including HP-
SIR and Sharp ASK. The IrDA 1.x low and
high-speed communication modes support
all speeds up to 16 Mb/s (VFIR). All
speeds can use Direct Memory Access.
The same drivers are used for all speeds
for receiving and transmitting, simplifying
driver programming and speed upgrades.
sequentially in the transmit buffer of
the host’s or local shared memory.
The Tx and Rx Frame Control Modules
control transmit and receive functions.
The 32 Kbytes shared memory can
keep seven IrDA frames with size of
2048 bytes.
Typical applications include data transfer
in notebook computers, desktops comput-
ers, printers, access-points, digital cameras
and peer-peer or client-server network
environments.
■ Direct Interface to both Legacy
and Digital Serial Interface (SIF)
Transceivers
■ Shared Memory and Host DMA modes
Shared Memory mode is a Local DMA
mode with 32 Kbytes SRAM locally.
The Serial Interface (SIF) module allows
the controller to interface directly to
Infineon’s IRM1600
In this mode, both the controller and
host have access to a shared block of
memory to which data can be read or
written. During packet transmitting or
receiving there is no data transfer on
the system bus.
Architecture
transceiver.
The IRC1802 Infrared Communications
Controller consists of an Infrared Core
module and a Host Interface module (see
IRC 1802 Block Diagram).
This transceiver supports new features
like speed mode select (VFIR), pro-
grammable modulation setting, LED
power control, receiver sensitivity and
power management.
For packet sending, the host copies the
packet to the Tx buffer of shared
memory, initializes the Transmit
Request and waits for the End of
Transmit, EOTR, condition to generate
an interrupt.
The Infrared Core module controls all
infrared communication functions. It is
divided into four subsystems: SIR, MIR,
FIR and Very Fast Infrared (VFIR). Each
subsystem consists of a controller and a
modem.
For packet receiving, the host waits for
the End of Receive, EOR, interrupt
condition and copies packets received
from the Rx buffer of shared memory.
The programming is simple and the
operation is fast.
The SIR subsystem improves on the
popular 16550 UART scheme by combining
a high performance DMA asynchronous
receiver-transmitter with the hardware Link
Access Protocol (IrLAP) for a complete
hardware SIR packet transfer.
C
L
.106
(2.70)
.116
(2.95)
D
E
.190
(4.83)
Pin 1
.138
(3.50)
.374 (9.86)
.157
E
D
(4.00)
E=Emitter
D=Detector
Dimensions in inches (mm)
A B S O L U T E M A X I M U M R AT I N G S
SYMBOL PARAMETER MIN TYPICAL
IRMS1600 SIDE VIEW
Preliminary Product Description
MAX
5.5
UNIT CONDITIONS
VCC
PD
TS
Supply Voltage
-0.5
V
Power Dissipation Average
Storage Temperature
550
100
450
mW
°C
16Mb/s
Infrared Data Transceiver
-40
ILED
TxD
LED Current (Peak)
mA
Transmission Input Voltage
-0.5
VCC+0.3
V
Infineon Technologies transceiver for VFIR
16 Mb/sec is pin compatible with our
Slimline series of IrDT transceivers.
Available in side view only, it is part of
the only complete VFIR solution available
on the market. The device combines an
LED, photodiode, and VFIR ASIC. The
ASIC has been designed to support VFIR,
FIR, MIR, SIR, and ASK modes. It is ideal
for Notebook, Desktop, Printer and Digital
Video applications.
R E C O M M E N D E D O P E R AT I N G C O N D I T I O N S
SYMBOL PARAMETER MIN TYPICAL
MAX
3.6
75
UNIT CONDITIONS
VCC
TA
Supply Voltage
3.0
3.3
V
Ambient Operating Temperature -25
°C
D C E L E C T R I C A L C H A R A C T E R I S T I C S
SYMBOL PARAMETER MIN TYPICAL
MAX
3.0
25
UNIT CONDITIONS
ICC
ICC
Supply Current; Standby
mA
mA
Standby VFIR receive
Supply Current; Receiving
3
7
Interface and optical
input power dependent
ISD
Supply Current, Shutdown
LED Current
50
nA
ILED
100
mA
IRMS1600 Pin Functions
R E C E I V E R P A R A M E T E R
PIN # FUNCTION
PIN # FUNCTION
SYMBOL PARAMETER
MIN TYPICAL
MAX
UNIT CONDITIONS
µW/cm2
µW/cm2
1
LED Anode
LED Cathode
TxD
5
6
7
8
SD/SCLK
EMIN
EMIN
EMIN
EMIN
tr,tf
Detection Irradiance SIR
Detection Irradiance MIR
Detection Irradiance FIR
Detection Irradiance VFIR
Receiver Rise/Fall Time
Receiver Rise/Fall Time
3
3
4
5
-
-
-
-
-
-
2
3
4
VCC
-
µW/cm2
*Do Not Connect
GND
-
µW/cm2
RxD
20
50
ns
ns
VFIR Mode
*Pin 7 internally grounded
tr,tf
SIR, MIR, FIR Mode
Features
T R A N S M I T T E R P A R A M E T E R
■ Compliant with IrDA Specification
■ Data Rates 9.6Kb/s to 16Mb/s
■ Supply Voltage 2.5V to 5.5V
■ Standby Current 3.0mA(max)
■ Shut Down Current 50nA(max)
SYMBOL PARAMETER
MIN TYPICAL
850 870
MAX
900
°
UNIT CONDITIONS
nm
λP
α
Input Capacitance
Radiant Angle at Half Intensity -15
Output Radiant Intensity 85
+15
170
Ie
275
MW/sr TxD=High, SD=Low,
VCC=3.0V, α= 0° and 15°,
TA=25 C, 25% duty
■ Slimline Package
H 4.0mm x D 4.8mm x L 9.8mm
■ Digital Serial Interface
For samples, www.infineon.com/irdt
USA (California)
Syed Naqvi
408-456-4092
Japan (Tokyo)
Hiromichi Kamijima
81-3-5449-6715
© Infineon Technologies Corp. 2000
All Rights Reserved
syed.naqvi@infineon.com
hiromichi.kamijima@infineon.com
Europe (Germany)
Walter Rothmund
Asia Pacific (Singapore)
King Soon Lim
49-941-202-1703
walter.rothmund@osram-os.com
65-8400-832
king-soon.lim@infineon.com
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