0.91August 25th, 1998Outline Dimension and Absolute Maximum Ratings Modified
1.0October 23rd,1998 Absolute Ratings and Electrical Characteristics Modified
1.0.1November 26th,1998 Electrical and Optical Specifications Modified
(Preliminary Information Disclaimer)
This doc ument includes a “Pr eliminary Informat ion” of Sharp Ir DA Control Infrared Trans ceiver (for IrDA Co ntrol
Peripheral Type 2). Any of information under this document, such as Specifications and outline dimensions, are
applicable only for reference purpose, and Sharp hold all rights to change or alter prices at any time without notice.
In absence of con fir matio n by devic e Spec ific atio n Sheet s, SHARP ta kes no res pons ibilit y for an y defect s that occ ur in
equipment using any of SHARP’s device, shown in catalogues, data books, Preliminary Information, etc. Contact
SHARP, or SHARP local representatives in order to obtain the latest version of the device Specification Sheets before
using any SHARP’s devices.
4. ABSOLUTE MAXIMUM RATINGS............................................................................................................................5
11. THE DERATING CURVE OF PEAK FORWARD LED CURRENT...................................................................... 10
SHARP Electronic Components
Rev. 1.0.1
, November 26, ‘98
3
Page 4
ELECTRONI C COMPON ENTS
SHARP IrDA Control Infrared Transceiver
IrDA Control Infrared Transceiver (for Peripheral Type 2)
GP2W2002YK
Technical Data
MEMBER IrDA
1. Description
The Sharp IrDA Control Infrared Transceiver provides
the wireless interface between logic and IR signals for
through-air, serial, half-duplex IrDA Control data links
and is designed to satisfy the IrDA Control Physical
Layer Specifications for Peripheral Type 2.
The GP2W2002YK is a low power operatable integrated
<Features>
Meets IrDA Control (for Peripheral Type 2)
Â
Wide Viewing Angle ([Min.] 1.5 m @ +/-40o)
Â
Wireless Communication at 75kbps data rate
Low Power Operation - at 3.3V
Â
Built-in Envelope Detector
Â
infrared transceiver that contains an IRLED, a LED
driver circuit, a PIN photodiode, an excellent sensitivity
receiver, and an envelope detector. The transceiver also
contains some additional functions, such as shut down
and sensitivity recovery for low current consumption and
longer communication distance.
RESET Function to Recover the Receiver
Â
Sensitivity
Optimized Interface to Sharp Peripheral Engine, an
Â
embedded communication controller for IrDA
Control.
2. IrDA Control Infrared Transceiver Internal Block Diagram
LEDA
11
10
TXD
1
AVcc
DVcc
AGND
DGND
6
PIN
PD
5
7
AMP.B.P.F.Detect
943
f
O
CXRESET
Figure 2.1 GP2W2002YK Internal Block Diagram
SD
8
V
O
2
SHARP Electronic Components
Rev. 1.0.1
, November 26, ‘98
4
Page 5
ELECTRONI C COMPON ENTS
(
)
3. Package Outline Dimensions (TENTATIVE)
17.5
14.0
(7.6)
(3.7)
3.1
SHARP IrDA Control Infrared Transceiver
(5.35)
SHIELD CASE
(8.2)
4.5
0.45
1.27
(0.89)
0.25
(0.84)
2.08
2.5
0.9
3.35
UNIT: mm
1.3
1.2
2.0
1. Unspecified tolerance shall be ± 0.3(mm).
2. Resin burr shall not be included in outline dimensions.
3. Package Material : Visible Light Cut-off Resin (Color: Black)
4. Pin Assignment : See “Pinout” for details.
5. Lead pitch distance represents that of the lea d root.
6. The appearance of the shieled case is TENTATIVE, and is subject to change without notice.
Average Forward LED CurrentIFD (DC)-60mA
Peak Forward LED CurrentI
Transmitter Da ta Inp u t Cu rr en tI
Receiver Data Output VoltageV
Soldering TemperatureT
FM
TXD
O
SOL
(NOTES)
1. The derating curve of peak forward current vs. ambient temperature is shown in section 11, figure 11.1.
2. The soldering should be done at the distance from 1.3mm from the resin edge of the transceiver module.
(RESET Terminal)
Recovery Timetret-40
SD Recovery Timet
High Level Input Voltage
SD
V
IHSD
(SD Terminal)
Low Level Input Voltage
V
ILSD
(SD Terminal)
Input Current
I
TX
(TX Terminal)
-1070
2.75.5V Supply voltage for receiver side
4.255.25V Supply voltage for emitter side
2.7-V
0.00.3V
3.01250
400-mA IE=9mW/sr,
74.17575.825kb/s
2.1VccV Refer to
00.6V Refer to ´RESET Function
-1msec
2.2VccV
00.5V
2.32.6mAVIH(TXD)=2.7V
µ
W/cm
µsec
o
C
*3
range of + 1.1%
2 *4
*5
*4
Frequency accuracy within the
Θr < +40o, Φr < +25
o
For in-band signals < 75.83kb/s
Θt < +40o, Φt < +25
´
RESET Function
o
µ
µ
[NOTES]:
3. IrDA Control system uses 16PSM coding scheme over 1.5MHz sub-carrier. See IrDA Control Physical Layer Link
Specification for the details of coding scheme and pulse characteristics.
4. See Figure 5.1 (below) for the viewing angle definition.
5. An in-band optical signal is a pulse/sequence where the peak wavelength λp, is defined as 850nm < λp <
900nm,
and the pulse characteristics are compliant with the IrDA Control Physical Layer Link Specification.
( ): TENTATIVE Value
Receiver
:
Θ
Horizontal (X-Axis)
Φ
: Vertical Angle (Y-Axis)
Θ
r, Φr
Θ
t, Φt
Θ
Transmitter
Φ
Figure 5.1 IrDA Control Transceiver Viewing Angle Criteria
SHARP Electronic Components
Rev. 1.0.1
, November 26, ‘98
6
Page 7
ELECTRONI C COMPON ENTS
SHARP IrDA Control Infrared Transceiver
6. Electrical and Optical Specifications
(Unspecified Ta= 25 oC,Vcc=3.3V)
ParameterSymbolMin.Typ.Max.UnitsConditions
RECEIVER SIDE
Current DissipationI
CC
S/D Current DissipationIccsd-7.010.0
Receiver Data Logic HighV
Output Voltage Logic LowV
OH
OL
Single Pulsetws3.666.679.67
Pulse Width Double Pulsetwd10.3313.3316.34
Multi Pulsetwm50.3653.3656.36
Jittertj-1.8-+1.8
Receiver Data Output Rise Timetr--6.0
Receiver Data Output Fall Timetf--6.0
Receiver Detecting DistanceL1.5--m
TRANSMITTER SIDE
Transmitter Radiant IntensityI
Peak Wavelength
Rise Timetr
Fall Timetf
λ
(LED)
(LED)
E
p
(NOTES)
* twm=53.00 µs (6.67 µs
×8−0.36)
6. “L”: Low current consumption mode, “H” or OPEN: Normal operating mode.
7. The time difference or time gap from the pulse judgement criteria point of the output waveform at the 50% point
between VOH and VOL.
8: Receiver output wavelength definition:
-5.07.0mA No input IR signal, VCC=3.3V
*6
at low current consumption
µ
A
mode
VCC-0.5--V No input IR signal, High level
--0.5V
µ
µ
µ
µ
µ
µ
sec*
sec*
sec*
sec
sec
sec
=400µA
I
OL
8,9
Input pulse width 6.33µs
8,9
Input pulse width 13.0µs
8,9
Input pulse width 53.00µs,*
7,8
*
8
*
*8
*4
Θr < 40o, Φr < 25
o
68mW/sr
9- -mW/sr
*4
I
850-900nm I
--80nsec *
--80nsec *
Θt < +40o, Φt < +25
=400mA
LED
=400mA
LED
9,10
9,10
o
VOH
90%
50%
10%
Criterion for
Pulse Position
SHARP Electronic Components
Rev. 1.0.1
, November 26, ‘98
tjtws, twd, twm
tftr
VOL
Figure 6.1 GP2W2002YK Receiver Output Waveform
90%
50%
10%
7
Page 8
ELECTRONI C COMPON ENTS
9: Emitter output wavelength definition:
Pulse Width
SHARP IrDA Control Infrared Transceiver
90%
50%
10%
trtf
IE
Figure 6.2 GP2W2002YK Emitter Output Waveform
10: Recommended Circuit for Emitter Side:
Ω
V
= 5V
CC2
560pF
=3.0V
V
IH
820
4.7
LEDA
TX
Ω
IrDA
Control
GP2W2002YK
The output signal shown above (Figure 6.2) should be obtained by
applying the “recommended circuit for emitter side” shown right.
7. Pinout
PinDescriptionSymbol
1 Analog Supply VoltageAV
2 Shut Down for Low Current ConsumptionSD
3 RESET Terminal for Receiver Sensitivity RecoveryRESET
4 -CX
5 Analog GroundAGND
6 Digital Supply VoltageDV
7 Digital GroundDGND
8 Receiver Data OutputV
9 Bandpass Filterf
10 Transmitter Data InputTXD
11 IRLED AnodeLEDA
0
6.67µs
100mW/sr
T
CC
CC
O
PIN 1PIN 11
PIN 11PIN 1
SHARP Electronic Components
Rev. 1.0.1
, November 26, ‘98
8
Page 9
ELECTRONI C COMPON ENTS
SHARP IrDA Control Infrared Transceiver
8. Application Circuit and Recommended Components
Parts Recommended Value
CX1 470pF, + 10%, Ceramic
CX2
0.1µF, + 10%, Ceramic
CX3
4.7µF, + 20%, Aluminum
CX4
0.1µF, + 10%, Ceramic
CX5 560pF, + 10%, Ceramic
R1
10Ω, + 5%, 0.125 Watt
R2
8.2kΩ, + 1%, 0.125 Watt
R3
820 Ω, + 5%, 0.125 Watt
R4
4.7Ω, + 5%, 0.5 Watt
Receiver
1
23
CX1
5
4
6
CX4
Transmitter
9 10
8
7
R2
11
FERESET
R1
3.3V
CX2
CX3
IRRX
R3
IRTX
CX5
R4
LED
I
=400mA
Ç
5V
Figure 8.1 GP2W2002YK Application Circuit Example
9. Waveform Examples
The following diagram shows and example of IrDA Control implementation using Sharp IrDA Control Infrared
Transce iver . The wave f or m o f t he imp leme n t ed s ys te m with Sh ar p Ir DA Cont r o l Infr a re d T rans c eive r will be a s s ho wn
below:
cc2
V
LEDA
TXD
=5V
I
II
Vo
IRTx1
IRRx1
SectionWaveform
I
16PSM code x 1.5MHz
RESET
SD
Avcc
V
cc1=3.3V
Figure 9.1 IrDA Control Transceiver Implementation
SHARP Electronic Components
Rev. 1.0.1
, November 26, ‘98
FRESET
II
RxCNT
Receiver Original Output
9
Page 10
ELECTRONI C COMPON ENTS
SHARP IrDA Control Infrared Transceiver
10. RESET Function
The “RESET” terminal is used to recover the receiver sensitivity to its maximum level. Since Sharp IrDA Control
Infrare d Tra nsce iver has a built -in c apab ility to a dju st t he r eceiving sensitivity, as a result, a very weak IR signals may
not be correctly received just after receiving a very strong IR signals.
Following figure shows an example of “RESET” signal in order to recover the Sharp IrDA Control Infrared
Transceiver’s receiving sensitivity to its receiving sensitivity to its maximum level:
13µsec
AGCN
tret: The time period until AGCN
tret
Optical
Signal
Gap Time
Vo
RESET
input
>
(NOTES)
This pinout is an Active Low terminal, and stays HIGH level when it is OPEN. The Low Level Pulse for the period of
> 13µsec enables this function to work. This > 13µsec input must be pulsed within the period of Gap time in order for
the transceiver to have receiver sensitivity recovery. The timing for this “RESET” pulse should be adjusted at controller
side.
11. The Derating Curve of Peak Forward LED Current
600
Pulse width < 3.3µsec, Duty Ratio < 25%
500
(mA)
FM
400
300
200
Peak Forward Current : I
100
0
-1070
-250255075100
Ambient Temperature : Ta (
o
C)
Figure 11.1 Derating Curve of Peak LED Current
SHARP Electronic Components
Rev. 1.0.1
, November 26, ‘98
10
Page 11
ELECTRONI C COMPON ENTS
SHARP IrDA Control Infrared Transceiver
LIFE SUPPORT POLICY
SHARP components should not be used in medical devices with life support functions or in safety equipment (or
similar applications where component failure result in loss of life or physical harm) without the written approval of an
officer of the SHARP Corporation.
SHARP reserves the right to make changes in specifications at any time and without notice. SHARP does not assume
any responsibility for the use of any circuitry described; no circuit patent licenses are implied.