TC9244P ,LSI FOR REMOTE CONTROL RECEIVINGTC9244PT(‘Q7AAPv . I IThe TC9244P is an LSI for infrared Remote Control I Ireceiving. It is used fo ..
TC9245F ,RECEIVING DEMODULATION IC FOR AUDIO INTERFACETC9245F/NT(‘Q74EF T(‘Q74EN"--w-NIIt'ttil.. ITC9245F, TC9245N are a receiving demodulation IC for TC ..
TC9245N ,RECEIVING DEMODULATION IC FOR AUDIO INTERFACEFEATURES0 Compatible with SCMS (Serial Copy Management System).0 Compatible with 4 inputs including ..
TC9246F ,PLL IC FOR DIGITAL AUDIOTC9246F/PT(‘Q746F T(‘Q746PI“. IVTC9246F, TC9246P are a clock generating IC to generate TC9246Fmaste ..
TC9246P ,PLL IC FOR DIGITAL AUDIOTC9246F/PT(‘Q746F T(‘Q746PI“. IVTC9246F, TC9246P are a clock generating IC to generate TC9246Fmaste ..
TC9250F ,16 BITS RESISTER STRINGS DA CONVERTERTC9250F/PT(Q7RnF T(‘Q7EDPTC9250F, TC9250F is 16 bits resister strings DA converter TC9250Ffor digit ..
TDA7334D ,LOW NOISE STEREO AMPLIFIERTDA7334®LOW NOISE STEREO PREAMPLIFIERDUAL CHANNEL PROCESSOR FOR PLAY-BACK
TDA7335 ,STEREO PREAMP + AMS + DOLBY B* NOISE REDUCTION PROCESSORapplications requiring very low noise per-formances.Each channel consists of two cascaded opera-tio ..
TDA7336D ,STEREO PREAMP + AMS + DOLBY NOISE REDUCTION PROCESSORAPPLICATIONS.STEREO DOLBY B NR SYSTEMLOW NOISE HEAD PREAMPLIFIERMUTE, AMS (AUDIO MUSIC SENSOR)FUNCT ..
TDA7338D ,STEREO DECODERELECTRICAL CHARACTERISTICS (continued)HIGH CUT CONTROLSymbol Parameter Test Condition Min. Typ. Max ..
TDA7338D ,STEREO DECODERTDA7338STEREO DECODERINTEGRATED 19KHz SC NOTCH FILTERFOR PILOT CANCELLATIONON CHIP FILTER FOR PILOT ..
TDA7338D ,STEREO DECODERELECTRICAL CHARACTERISTICS (V = 9V; modulation frequency: 1KHz; de-emphasis time:CCT = 50μs; nomina ..
TC9244P
LSI FOR REMOTE CONTROL RECEIVING
TOSHIBA
TC9244P
TOSHIBA CMOS DIGITAL INTEGRATED CIRCUIT SILICON MONOLITHIC
TC9244P
LSI FOR REMOTE CONTROL RECEIVING
The TC9244P is an LSI for infrared Remote Control
receiving. It is used for remote control of devices such as
audio system, TVs, VTRs, CD players.
Remote control systems are easily constructed using
TC9244P in combination with transmitting LSls TC9243P
and TC9243F.
FEATURES
0 Basic function : 9
Hold pulse function '. 7
Cyclic pulse function : 2
o 3 functions out of 7 hold pulse functions are shift key
outputs and can be output in parallel with other outputs
corresponding to double-pushed signals sent from
sending side.
DIP20-P-300-2.54A
Weight : 1.4g (Typ.)
0 1 function out of 2 cyclic pulse functions can be control outputs using an external key in addition
to control by remote control signal.
o 8bit system codes are detected. System codes permitting signal receiving can be set up to 4 bits.
Interference with other equipment can be thus prevented.
PIN CONNECTION (TOP VIEW)
GND -4
rT --t
IN26 -I1
CIN1 -4
CIN2 -q
CIN3 -q
CINA "n
\DmflmmbWNa
F- VDD
F- DP08
F- DP16
F- DP24
F- HP01
F- HP02
F- HP03
l-- HP04
F- CP25
F- CP26
TOSHIBA
BLOCK DIAGRAM
Oscillation
circuit
Timing
generator
Shumitt
circuit
TC9244P
GND VDD
19 DPO8
microcontroller
. ROM :
768x8 bits
q RAM :
16x4 bits
Output port
Input port
(with pull-down resistor) CP26
7 8 9 1
CIN1 CIN2 CIN3 CIN4
PIN FUNCTION
PIN No. SYMBOL PIN NAME FUNCTION AND OPERATION
J, CI' :srmfgaslupply Applies power supply voltage. (VDD=5.0V, Typ.)
2 Y"? Oscillator Ceramic oscillator output and input amplifier circuit and
3 XT terminal feedback resistor are built in.
4 ATT' Reset input When set t.o "L" |eve|,_ titializes internal states.
pulI-up resistor are built In.
5 W Remote control Input remote control signal whose sub-carrier signal is
signal input removed.
Inverts corresponding output (CP26) each time "H" level
6 lN26 Cyclic input is input.
Pull-down resistors are built in.
7-10 CIN1--CIN4 Code input Inputs systemfode which tn.ables receiving.
Pull-down resistors are built m.
Inverted by corresponding remote '2
11, 12 CP26, CP25 Cyclic output control signal and key input. "L" level ,
when power is turned on. (reset) : 3-
13--16 HP04--HP01 Hold output Remains at "H" level during remote E
17--19 DP24, 16, 08 control signal input. 8
2 2002-01-17
TOSHIBA TC9244P
OPERATIONS
Setting receive-enable system code
Transmitting LSIs TC9243P and TC9243F support an 8bit system code transmitting format to prevent
interference with other machines.
This code makes each machine unique and thus prevents interference.
With TC9244P, the lower 4 bits of the 8bit system code used to enable receive can be set.
The upper 4 bits are fixed to "1000". (Setting value range : "80"-''8F'' HEX.)
Once this receive-enabling system code is set, a match between the system code of the remote
control input signal and the set system code enables reception of the subsequent key data code.
....Ae
To set the receive-enabling system code, connect pins CIN1--4 to VDD using jumpers.
The jumpers correspond to system code bits 0~3 (Sty-Sa).
Connecting the pins to VDD using jumpers sets the corresponding bits to 1.
Receive signal check
The transmitting LSIs TC9243P and TC9243F support transmission of a check code in one-shot
waveforms in order to prevent malfunctioning due to data read errors.
As the check code, the same system code is sent again , after the key data code, the inverted key
data code is sent.
System code System code Key data code Key data code
Leader pulse
$0 $1 $2 Se S4 ss $6 $7 So 51 S2 S3 S4 ss S6 S7 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7
TC9244P decodes all data. The code is sent twice. TC9244P determines that the data are valid only
when codes in both transmissions match.
3 2002-01-17
TOSHIBA TC9244P
3. HP, DP and CP output pulses
3-1. HP01--HP04, DP08, DP16, DP24 (Hold pulse)
Key ON I
/ One-shot signal
Receive signal fl]
One-shot output Approx. 110ms
Key ON J
Consecutive signal
Receive signal III ly" Ill tt Ill n
Consecutive output
Key ON
Receive signal II A II B
Output A Approx. 110ms
Approx. 110ms
Output B Approx. 110ms
When the initial one-shot system code and the receive signal are checked and the data are
valid, the hold pulse is switched to "H" level.
If the receive signal is only a one-shot signal, the output switches to "L" level after
approximately 110ms.
If the key is held down after the one-shot signal is output and signals are input
consecutively, the output stays at "H" level.
When the key is released and the consecutive signal input stops, key release is determined
after 110ms elapses after the last consecutive signal input.
The output is switched to "L" level.
DP08, DP16, DP24 are used for outputting shift pulses.
These are set to "H" level in parallel to other output in response to a signal indicating that
two keys are pressed simultaneously sent by the transmitter.
This type of output is optimal for tape deck RECORD-PLAY, RECORD-PAUSE and RECORD-
REVERSE output.
4 2002-01-17
TOSHIBA TC9244P
3-2. CP25 and CP26 (Cyclic pulses)
Key ON I tt
Receive signal III tt III ll
IN26 input
Cyclic output (CP26 only)
Cyclic pulses are inverted each time a one-shot signal is received.
Setting pin Ihl26 to "H" level also inverts CP26.
Unless output is stabilized within 4ms, cyclic pulse is not valid.
Thus, an external component used to prevent chatter is not required.
Cyclic pulse output is optimal for turning power on/off and for muting.
4. Code assignment (Key numbers : TC9243P and TC9243F send key numbers)
KEY DATA CODE
Nhjl'ER D0 D1 Dit D3 D4 D5 D6 D7 OUTPUT FUNCTION
K01 1 o o o o (*) (*) (*) HP01
K02 o 1 o o o (*) (*) (*) HP02 Hold
K03 1 1 o o o (*) (*) (*) HP03
K04 o o 1 o o (*) (*) (*) HP04
K08 (*) (*) (*) (*) (*) 1 o o DP08 Hold
K16 (*) (*) (*) (*) (*) 1 1 0 DP16 and
K24 (*) (*) (*) (*) (*) 1 o 1 DP32 Shift
K25 1 0 0 1 1 (*) (*) (*) CP25 c li
K25 o 1 o 1 1 (*) (*) (*) CP26 yc IC
(*) Don't care (Corresponding output changes regardless of data)
5 2002-01-17
TOSHIBA TC9244P
MAXIMUM RATING (Ta=25°C)
CHARACTERISTIC SYMBOL RATING UNIT
Supply Voltage VDD -0.r-6.0 V
Input Voltage VIN GND-thr-VDD) V
Power Dissipation PD 350 mW
Operating Temperature Topr -40-85 "C
Storage Temperature Tstg -6r-150 "C
ELECTRICAL CHARACTERISTICS
Recommended operating conditions (Unless otherwise specified, VDD=5.0V, Ta =25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Operating Supply - -- 0
Voltage VDD - Ta-- 40 85 C 4.5 5.5 V
Oscillation Frequency fosc - - 400 800 kHz
"H" Level 1/IH1 - (Except RST, RX IN) VDDx0.7 VDD V
Input "H" Level VIH2 - (RST, Rx IN) VDDXO.8 VDD V
Voltage "L" Level V|L1 - (Except RiT, RX IN) 0 VDDx0.3 V
"L" Level VILZ - (EST, RX IN) 0 VDDXO.2 V
DC Characteristics (Unless otherwise specified, VDD=5.0V, Ta=25°C)
CHARACTERISTIC SYMBOL CIR- TEST CONDITION MIN. TYP. MAX. UNIT
Operating Supply -
Current IDD - fosc---455kHz - 1.0 3.0 mA
Pull-down Resistor RD - (IN26, CIN) 100 200 400 k0
PuII-up Resistor RU - (KST) 25 50 100 kn
Output "H" Level IOH - (CP, HP, DP) VOH=4V - 1.0 -4.0 - mA
Current "L" Level IOL - (CP, HP, DP) VOL=1V 1.0 8.0 - mA
Input Leak Current ILI - VIN =VDD, GND - 1.0 - 1.0 pA
6 2002-01-17
TOSHIBA TC9244P
APPLICATION CIRCUIT
1. TC9244P circuit
Control Signal
ij9,iij,,j,,j,i,,i,,,i",
VDD DP08 DP16 DP24 HP01 HP02 HP03 HP04 CP25 CP26
. TC9244P
GND x-r XT W RX IN IN26 CIN1 CINZ CIN3 CIN4
1 2 3 4 6 7 8 9 10
J2 (*)
R1 t "I ( ( ( (
'it" (j.'],']]'
From Photo receiver
(*) Ceramic oscillator
CSB455E (Murata Seisakusyo) C1 =C2 =100pF, R2 = unnecessary
In case of influenced by oscillation noise, add resistor R1 to 10k0 MAX.
FCR455K3 (TDK) C1=C2=220pF, R2=4.7kQ, R1=unnecessary
In case of influenced by oscillation noise, add resistor R2 to large (>4.7k0).
or equivalent
7 2002-01-17
TOSHIBA TC9244P
PACKAGE DIMENSIONS
DlP20-P-300-2.54A Unit : mm
0—01 5°
clLLL.-lu.Lll-lt-ll-ll-lL-dL_]
25.1 MAX ,
24.6:02 d
3.13:0.3
0.87TYP
Weight : 1.49 (Typ.)
8 2002-01-17
TOSHIBA TC9244P
RESTRICTIONS ON PRODUCT USE
000707EBA
OTOSHIBA is continually working to improve the quality and reliability of its products.
Nevertheless, semiconductor devices in general can malfunction or fail due to their inherent
electrical sensitivity and vulnerability to physical stress. It is the responsibility of the buyer,
when utilizing TOSHIBA products, to comply with the standards of safety in making a safe
design for the entire system, and to avoid situations in which a malfunction or failure of such
TOSHIBA products could cause loss of human life, bodily injury or damage to property.
In developing your designs, please ensure that TOSHIBA products are used within specified
operating ranges as set forth in the most recent TOSHIBA products specifications. Also, please
keep in mind the precautions and conditions set forth in the "Handling Guide for
Semiconductor Devices," or "TOSHIBA Semiconductor Reliability Handbook" etc..
OThe TOSHIBA products listed in this document are intended for usage in general electronics
applications (computer, personal equipment, office equipment, measuring equipment, industrial
robotics, domestic appliances, etc.). These TOSHIBA products are neither intended nor
warranted for usage in equipment that requires extraordinarily high quality and/or reliability or
a malfunction or failure of which may cause loss of human life or bodily injury ("Unintended
Usage"). Unintended Usage include atomic energy control instruments, airplane or spaceship
instruments, transportation instruments, traffic signal instruments, combustion control
instruments, medical instruments, all types of safety devices, etc.. Unintended Usage of TOSHIBA
products listed in this document shall be made at the customer's own risk.
0 The products described in this document are subject to the foreign exchange and foreign trade
OThe information contained herein is presented only as a guide for the applications of our
products. No responsibility is assumed by TOSHIBA CORPORATION for any infringements of
intellectual property or other rights of the third parties which may result from its use. No
license is granted by implication or otherwise under any intellectual property or other rights of
TOSHIBA CORPORATION or others.
0 The information contained herein is subject to change without notice.
9 2002-01-17
:
www.loq.com
.
