ASDL-3023 Datasheet, PDF (8/26 Pages) AVAGO TECHNOLOGIES LIMITED – IrDA Data Compliant Low Power 4Mbit/s with Remote Control Infrared Transceiver

Remote Control (RC) Transmitter
Parameter
RC Radiant Intensity
RC Viewing Angle
RC Peak Wavelength
TxD_RC Logic Levels
TxD_RC Input Current
RC LED Anode On-State
Voltage
High
Low
High
Low
Symbol Min.
Typ.
I_EH
80
2q_1/2
l_P
V_IH
V_IL
I_H
I_L
V_ON
(RC_LEDA)
30
880
IOVcc-0.5
0
885
0.02
-0.02
2
Max.
60
900
IOVCC
0.5
1
1
Units
mW/sr
°
nm
V
V
mA
mA
V
Conditions
RC_I_LEDA = 250mA,
q_1/2 ≤ 15°, TxD_RC ≥ V_IH, T_A = 25 °C
V_I ≥ V_IH
0 ≤ V_I ≤ V_IL
RC_I_LEDA=250mA, RC VLED = 3.6V,
R = 4.7W, V_{I(TxD_RC)} ≥ V_IH
Transceiver
Parameters
Input Current
Supply Current
Symbol Min.
High
I_H
Low
I_L
-1
Shutdown I_CC1
Idle
I_CC2
(Standby)
Active
I_CC3
Typ. Max.
0.01 1
-0.02 1
1
2.0
2.9
3.5
Units
mA
mA
mA
mA
Conditions
VI ≥ VIH
0 ≤ VI ≤ VIL
VSD ≥ IOV_CC-0.5, TA=25°C
V_I(TxD) ≤ V_IL, EI=0
mA
V_I(TxD) ≥ V_IL, EI=10mW/cm²
Note:
[4] An in-band optical signal is a pulse/sequence where the peak wavelength, l_P, is defined as 850 nm ≤ l_P ≤ 900 nm, and the pulse characteristics
are compliant with the IrDA Serial Infrared Physical Layer Link Specification version 1.4.
[5] For in-band signals 115.2 kbit/s where 9 mW/cm2 ≤ EI ≤ 500 mW/cm2.
[6] For in-band signals 1.152 Mbit/s where 22 mW/cm2 ≤ EI ≤ 500 mW/cm2.
[7] For in-band signals 4 Mbit/s where 22 mW/cm2 ≤ EI ≤ 500 mW/cm2.
[8] Latency is defined as the time from the last TxD_IrDA light output pulse until the receiver has recovered full sensitivity.
[9] Receiver Wake Up Time is measured from Vcc power ON to valid RxD_IrDA output.
[10] Transmitter Wake Up Time is measured from Vcc power ON to valid light output in response to a TxD_IrDA pulse.
[11] The Max Optical PW is defined as the maximum time which the IR LED will turn on, this, is to prevent the long Turn On time for the IR LED.
Max. Permissible Peak LED Current
350
Max. Permissible DC LED Current
70
300
60
250
50
200
150
100
50
0
-40 -20
0
20
40
60
80 100
TA - Ambient Temperature - ^oC
40
R ja = 400degC/W
30
20
10
0
-40 -20
0
20
40
60
TA - Ambient Temperature - ^oC
80
100
Figure 3. Maximum Peak IR LED current vs. ambient temperature. Derated
based on TJMAX = 100°C.
Figure 4. Maximum Peak RC LED current vs. ambient temperature. Derated
based on TJMAX = 100°C.