Photo Modules for PCM Remote Control Systems

Size: px

Start display at page:

Download "Photo Modules for PCM Remote Control Systems"

Gavin Williams
10 years ago
Views:

1 Phoo Modules for PCM Remoe Conrol Sysems Available ypes for differen carrier frequencies Type fo Type fo TSOP173 3 khz TSOP khz TSOP khz TSOP khz TSOP khz TSOP174 4 khz TSOP khz Descripion The TSOP17.. series are miniaurized receivers for infrared remoe conrol sysems. PIN diode and preamplifier are assembled on lead frame, he epoxy package is designed as IR filer. The demodulaed oupu signal can direcly be decoded by a microprocessor. TSOP17.. is he sandard IR remoe conrol receiver series, supporing all major ransmission codes. GND V S OUT Feaures Phoo deecor and preamplifier in one package Inernal filer for PCM frequency Improved shielding agains elecrical field disurbance TTL and CMOS compaibiliy Oupu acive low Low power consumpion High immuniy agains ambien ligh Coninuous daa ransmission possible (up o 4 bps) Suiable burs lengh 1 cycles/burs Block Diagram PIN Inpu AGC Conrol Circui Band Pass Demodulaor 8 k 3 1 V S OUT GND Documen Number 83 1 (7)

PIN diode and preamplifier are assembled on lead frame, he epoxy package is designed as IR filer. The demodulaed oupu signal can direcly be decoded by a microprocessor. TSOP17.

2 Absolue Maximum Raings T amb = 5 C Parameer Tes Condiions Symbol Value Uni Supply Volage (Pin ) V S V Supply Curren (Pin ) I S 5 ma Oupu Volage (Pin 3) V O V Oupu Curren (Pin 3) I O 5 ma Juncion Temperaure T j 1 C Sorage Temperaure Range T sg C Operaing Temperaure Range T amb C Power Consumpion (T amb 85 C) P o 5 mw Soldering Temperaure 1 s, 1 mm from case T sd 6 C Basic Characerisics T amb = 5 C Parameer Tes Condiions Symbol Min Typ Max Uni Supply Curren (Pin ) V S = 5 V, E v = I SD 1.5 ma V S = 5 V, E v = 4 klx, sunligh I SH ma Supply Volage (Pin ) V S V Transmission Disance E v =, es signal see fig.7, d 35 m IR diode TSAL6, I F = 4 ma Oupu Volage Low (Pin 3) I OSL =.5 ma,e e =.7 mw/m, V OSL 5 mv f = f o, p /T = Irradiance (3 4 khz) Pulse widh olerance: E e min.35.5 mw/m pi 5/f o < po < pi + 6/f o, es signal (see fig.7) Irradiance (56 khz) Pulse widh olerance: E e min mw/m pi 5/f o < po < pi + 6/f o, es signal (see fig.7) Irradiance pi 5/f o < po < pi + 6/f o E e max 3 W/m Direciviy Angle of half ransmission disance ϕ 1/ ±45 deg Applicaion Circui TSAL6.. TSOP F *) Ou 1 *) **) >1 k opional C +5V GND *) recommended o suppress power supply disurbances **) The oupu volage should no be hold coninuously a a volage below 3.3V by he exernal circui. Documen Number 83 (7)

..+85 C Power Consumpion (T amb 85 C) P o 5 mw Soldering Temperaure 1 s, 1 mm from case T sd 6 C Basic Characerisics T amb = 5 C Parameer Tes Condiions Symbol Min Typ Max Uni Supply Curren (Pin ) V S

3 Suiable Daa Forma The circui of he TSOP17.. is designed in ha way ha unexpeced oupu pulses due o noise or disurbance signals are avoided. A bandpassfiler, an inegraor sage and an auomaic gain conrol are used o suppress such disurbances. The disinguishing mark beween daa signal and disurbance signal are carrier frequency, burs lengh and duy cycle. The daa signal should fullfill he following condiion: Carrier frequency should be close o cener frequency of he bandpass (e.g. 38kHz). Burs lengh should be 1 cycles/burs or longer. Afer each burs which is beween 1 cycles and 7 cycles a gap ime of a leas 14 cycles is neccessary. For each burs which is longer han 1.8ms a corresponding gap ime is necessary a some ime in he daa sream. This gap ime should have a leas same lengh as he burs. Up o 14 shor burss per second can be received coninuously. Some examples for suiable daa forma are: NEC Code, Toshiba Micom Forma, Sharp Code, RC5 Code, RC6 Code, R Code, Sony Forma (SIRCS). When a disurbance signal is applied o he TSOP17.. i can sill receive he daa signal. However he sensiiviy is reduced o ha level ha no unexpeced pulses will occure. Some examples for such disurbance signals which are suppressed by he TSOP17.. are: DC ligh (e.g. from ungsen bulb or sunligh) Coninuous signal a 38kHz or a any oher frequency Signals from fluorescen lamps wih elecronic ballas (an example of he signal modulaion is in he figure below) ime [ms] IR Signal from Fluorescen Lamp wih low Modulaion Documen Number 83 3 (7)

The disinguishing mark beween daa signal and disurbance signal are carrier frequency, burs lengh and duy cycle.

4 Typical Characerisics (T amb = 5 C unless oherwise specified) e E min / e E Rel. Responsiiviy f = f 5% f ( 3 db ) = f / f/f Relaive Frequency E e min Threshold Irradiance ( mw/m ) f(e)=f E Field Srengh of Disurbance ( kv / m ). Figure 1. Frequency Dependence of Responsiviy Figure 4. Sensiiviy vs. Elecric Field Disurbances po Oupu Pulse Lengh (ms) Inpu burs duraion = 95 nm, opical es signal, fig E e Irradiance ( mw/m ) Figure. Sensiiviy in Dark Ambien E e min Threshold Irradiance ( mw/m ) 1 1 f = f 1 khz 1 Hz khz V srms AC Volage on DC Supply Volage ( mv ) Figure 5. Sensiiviy vs. Supply Volage Disurbances E e min Threshold Irradiance (mw/m ) Correlaion wih ambien ligh sources ( Disurbance effec ) : 1W/m 1.4 klx 4. ( Sand.illum.A, T = 855 K ) 8. klx 3.5 ( Dayligh, T = 59 K ) Ambien, = 95 nm E DC Irradiance (W/m ) Figure 3. Sensiiviy in Brigh Ambien E e min Threshold Irradiance (mw/m ) Sensiiviy in dark ambien T amb Ambien Temperaure ( C ) Figure 6. Sensiiviy vs. Ambien Temperaure Documen Number 83 4 (7)

.1 Inpu burs duraion = 95 nm, opical es signal, fig.7.1 1. 1. 1. 1. E e Irradiance ( mw/m ) Figure. Sensiiviy in Dark Ambien E e min Threshold Irradiance ( mw/m ) 1 1 f = f 1 khz 1 Hz.1.1.1 1 1 1 1 khz 1 94 916 V srms AC Volage on DC Supply Volage ( mv ) Figure 5.

5 E e V O V OH V OL Opical Tes Signal (IR diode TSAL6, I F = A, 3 pulses, f = f, T = 1 ms) Oupu Signal pi * T * pi 1/fo is recommended for opimal funcion 1 ) 7/f < d < 15/f ) po = pi 6/f 1 ) d po ) Figure 7. Oupu Funcion 1611 T on,t off Oupu Pulse Lengh (ms) T off T on = 95 nm, opical es signal, fig E e Irradiance (mw/m ) Figure 1. Oupu Pulse Diagram E e Opical Tes Signal V O V OH V OL 6 s 6 s T = 6 ms Oupu Signal, ( see Fig.1 ) T on T off I s Supply Curren ( ma ).9 V s = 5 V T amb Ambien Temperaure ( C ) Figure 8. Oupu Funcion Figure 11. Supply Curren vs. Ambien Temperaure Envelope Duy Cycle Burslengh [number of cycles/burs] S ( ) rel Relaive Specral Sensiiviy Wavelengh ( nm ) 115 Figure 9. Max. Envelope Duy Cycle vs. Burslengh Figure 1. Relaive Specral Sensiiviy vs. Wavelengh Documen Number 83 5 (7)

Oupu Pulse Diagram E e Opical Tes Signal V O V OH V OL 6 s 6 s T = 6 ms Oupu Signal, ( see Fig.1 ) T on T off 94 8134 I s Supply Curren ( ma ).9 V s = 5 V.7.5.3..1 3 15 15 3 45 6 75 9 96 1115 T amb Ambien Temperaure ( C ) Figure 8.

6 p d rel Relaive Transmission Disance p d rel Relaive Transmission Disance Figure 13. Verical Direciviy ϕ y Figure 14. Horizonal Direciviy ϕ x Dimensions in mm Documen Number 83 6 (7)

... 95 11339p d rel Relaive Transmission Disance 95 1134p d

7 Ozone Depleing Subsances Policy Saemen I is he policy of Vishay Semiconducor GmbH o 1. Mee all presen and fuure naional and inernaional sauory requiremens.. Regularly and coninuously improve he performance of our producs, processes, disribuion and operaing sysems wih respec o heir impac on he healh and safey of our employees and he public, as well as heir impac on he environmen. I is paricular concern o conrol or eliminae releases of hose subsances ino he amosphere which are known as ozone depleing subsances ( ODSs). The Monreal Proocol (1987) and is London Amendmens (199) inend o severely resric he use of ODSs and forbid heir use wihin he nex en years. Various naional and inernaional iniiaives are pressing for an earlier ban on hese subsances. Vishay Semiconducor GmbH has been able o use is policy of coninuous improvemens o eliminae he use of ODSs lised in he following documens. 1. Annex A, B and lis of ransiional subsances of he Monreal Proocol and he London Amendmens respecively. Class I and II ozone depleing subsances in he Clean Air Ac Amendmens of 199 by he Environmenal Proecion Agency (EPA) in he USA 3. Council Decision 88/54/EEC and 91/69/EEC Annex A, B and C ( ransiional subsances) respecively. Vishay Semiconducor GmbH can cerify ha our semiconducors are no manufacured wih ozone depleing subsances and do no conain such subsances. We reserve he righ o make changes o improve echnical design and may do so wihou furher noice. Parameers can vary in differen applicaions. All operaing parameers mus be validaed for each cusomer applicaion by he cusomer. Should he buyer use Vishay-Telefunken producs for any uninended or unauhorized applicaion, he buyer shall indemnify Vishay-Telefunken agains all claims, coss, damages, and expenses, arising ou of, direcly or indirecly, any claim of personal damage, injury or deah associaed wih such uninended or unauhorized use. Vishay Semiconducor GmbH, P.O.B. 3535, D-745 Heilbronn, Germany Telephone: 49 () , Fax number: 49 () Documen Number 83 7 (7)

heir impac on he environmen. I is paricular concern o conrol or eliminae releases of hose subsances ino he amosphere which are known as ozone depleing subsances ( ODSs).

IR Receiver Modules for Remote Control Systems Description

IR Receiver Modules for Remote Control Systems Description TSOP1.. IR Receiver Modules for Remoe Conrol Sysems Descripion The TSOP1.. - series are miniaurized receivers for infrared remoe conrol sysems. PIN diode and preamplifier are assembled on lead frame, he