IrDA
CND0004A
Optical Transceiver Module for IrDA
Overview
CND0004A is a high speed response, high reliability infrared data
link device. It consists of a high speed GaAlAs infrared light emitting
diode, a high speed PIN photodiode and a post processing IC, and
they are housed in a single package.
Unit : mm
12.0±0.3
7.0±0.2
2.6±0.3
2.3±0.3
Features
Small size package
123456789
11-0.4±0.08
4.0±0.3
1011
10-0.9±0.2
Compatible with reflow soldering process
4.5
5.1±0.3
NU : non usable
1 : NU
2 : SD
3 : Gnd
4 : V
CC
5 : RXD
6 : Gnd
7 : NU
8 : TXD
9 : NU
10 : LEDC
11 : LEDA
Low voltage driving capability, operating source voltage
IrDA Ver 1.0 compatible (max. 115.2 kbps)
Includes shutdown function
Absolute Maximum Ratings (Ta = 25˚C)
Transmitter TX
Parameter
LED peak forward current
Data input voltage VI– 0.5 to VCC+0.5
Symbol
*
I
FP
Ratings Unit
400
(2.7 to 5.5 V)
mA
V
2-R 1.7±0.08
Supply voltage VCC– 0.5 to +7 V
Receiver
Temperature
*
Duty ratio ≤ 20 %, pulse width ≤ 90 µs
RX
Output sinking current I
OL
Data output voltage VO– 0.5 to VCC+0.5
Operating ambient temperature
Storage temperature T
T
opr
stg
10
0 to +70
–20 to +85
mA
V
˚C
˚C
Electro-Optical Characteristics (Ta = 25˚C)
Parameter
Operating supply voltage V
Supply current (Receiver) I
Data rates 2.4 115.2 kbps
High level input voltage VIHV
TX Low level input voltage VILV
Rise time, fall time tr, tfV
Maximum transfer distance L
RX High level output voltage VOHI
Low level output voltage VOLI
Symbol
CC
CCVCC
CC
CC
CC
Transmitter side 40mW/sr 1 m
max
OH
OL
Conditions min typ max Unit
2.7 5 5.5 V
= 5V, VI = 0.5V, V
= 2.7 to 5.5V, V
= 2.7 to 5.5V, V
= 5V, R
≤ 20µA (light shut off)
≤ 4mA
(light receiving)
≤ 0.5V
(light shut off)
SD
≤ 0.5V 2.5 V
SD
≤ 0.5V 0 0.5 V
SD
= 12Ω 0.6 µs
LED
V
– 0.5
CC
1.2 mA
V
CC
V
0.5 V
1
IrDA CND0004A
I
— V
10
10
(mA)
FP
10
10
4
3
2
FP
LEDA
t
= 1.6µs
w
Duty = 1%
Ta = 25˚C
Pulse forward current I
1
0123
LED anode pin voltage V
I
10
e
1
— Ta
e
LEDA
= 250mA
I
FP
Ta = 25˚C
= 1.6µs
t
w
= 8.7µs
t
P
(V)
Relative radiant intensity I
–1
10
0
40 60 8020
Ambient temperature Ta (˚C )
I
— I
10
e
1
e
Relative radiant intensity I
–1
10
10
2
10
Pulse forward current IFP (mA)
I
— V
12
10
(mA)
IH
8
6
4
IH
V
= 5V
CC
= 120Ω
R
B
= 1.6 µs
t
w
= 8.7 µs
t
p
Input current I
2
0
0
2684
Input voltage VIH (V)
FP
IFP = 250mA
t
w
t
P
IH
= 1.6µs
= 8.7µs
1.8
(V)
1.7
LEDA
1.6
1.5
LED Anode pin voltage V
10
020
1.4
3
Ambient temperature Ta (˚C )
100
(%)
e
80
60
40
20
Relative light emitting intensity I
0
770 810 850 890 930
V
— Ta
LEDA
I
FP
= 1.6µs
t
w
= 8.7µs
t
P
40 60 80
I
— λ
e
I
FP
Ta = 25˚C
Wavelength λ (nm)
= 250mA
= 250mA
970
Directivity characteristics
100
(%)
e
80
60
40
20
Relative light emitting intensity I
0
– 90 – 60 – 30
2
(Transmitter)
Angle of rotation θ (deg.)
1.0
0.9
(mA)
CC
0.8
0.7
0.6
Current consumption I
9006030
0.5
20 40 1008060
0
I
— Ta
CC
VCC = 5.0V
VCC = 3.3V
t
— Ta
3.6
3.2
(µs)
w
2.8
2.4
Reception pulse width t
2
0 204060
w
VCC = 3.3V
VCC = 5.0V
H = 100µW/cm
tw(H) = 1.6µs
Duty = 20%
Ambient temperature Ta (˚C )Ambient temperature Ta (˚C )
2