5-FUNCTIONS REMOTE CONTROL DECODER WITH BUILT-IN DC-DC CONVERTER

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5-FUNCTIONS REMOTE CONTROL DECODER WITH BUILT-IN DC-DC CONVERTER

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GPRC2062A
5-FUNCTIONS REMOTE CONTROL DECODER WITH BUILT-IN DC-DC CONVERTER
GPRC2062A remote control decoder decode received serial bit-stream data transmitted remote GPRC205A, then interprets lines information bits output data control corresponding external component accordingly. GPRC2062A will activated only when consecutive identical frames received. Moreover,
FEATURES
Operation voltage Range 1.2V operation built-in R-oscillator needs only off-chip resistor accuracy Standby Operation current ISTBY 1.0µA, when R-oscillator stops IOPERATE ,VDD 100µA, when R-oscillator free-run Built-in Power Reset Built-in DC-DC Converter
GPRC2062A embedded DC-DC converter only 1-battery remote control application.
With GENERALPLUS state-of-the-art technology strong backup, GPRC2062A most suitable product remote control system application.
Provide 5-function pins Variable frame rate control external Resistor
BLOCK DIAGRAM
VDDO
ROSCP R-OSC Recovery Processing Clock Error
OUT1 OverDe-glitch Power-on reset OUT2 8bit CKRC_CNT 4bit SYM_CNT 7bit BITCNT VSS1 Sampling Extractor DC-DC Converter Frame VBAT
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GPRC2062A
SIGNAL DESCRIPTIONS
Mnemonic ROSCP OUT1 OUT2 VDDO VBAT VSS1
Legend: Input, Output, Power
Type
5-Function parallel data output
Description
Serial bit-stream data input R-oscillator input, connect through resistor. Inverter input pins
Inverter output pins
DC-DC Converter switch output, connect VBAT through inductor Power supply voltage output Battery supply voltage input Power supply voltage input Power supply ground input
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GPRC2062A
FUNCTIONAL DESCRIPTIONS
5.1. Frame Format
Preamble
Preamble field: preamble fields field: field: Data field: pattern: pattern: pattern: Even parity check field Frame polarity indication field, frame transmitted positive/negative order data fields encoded encoded encoded
5.2. Operation
GPRC2062A receives serial bit-stream data transmitted from GPRC205A decodes data fields 5-bits data output. signal will activate GPRC2062A decode incoming data. When GPRC2062A received consecutive,
5.3. Decoder Flow Chart
Power
STANDBY
correct identical frames, DO[4:0] those frames afterward interpreted control external component accordingly. (DO[3:0] low-active DO[4] NMOS Open-Drain type).
Preamble Check
Count error frame
Error frame
DO[0] DO[1] mutual exclusive, DO[2] DO[3]. That that DO[0] DO[1] DO[2]&DO[3]) active status "1") same time. decoder will discard frame which either D0=D1=1 D2=D3=1. because that typical applications DO[0:1] DO[2:3] Forward/Backward Left/Right-turn control. will confuse while GPRC2062 instructs forward backward directions turn left turn right) same time. Hence, those mutual-exclusive bits will whole system safer more reliable.
Symbol Check
Disable Data output
Store 5bits data
Match Previous stored data
DO[4], which NMOS open-drain output, designed turbo function. When DI[0] DI[4] remote transmitter both active (both "1") simultaneously, DO[4] will decoded (active) whereas DO[0] will decoded (inactive). receiving timing shown below:
Latch data output
After power-on, flow chart reset stay STANDBY state. When signal received, GPRC2026A will check incoming data frame structure. there error
Preamble Data field, flow chart will back STANDBY
state wait next frame. received frame structure pass Preamble Symbol check, 5-bits data stored
DI[4:0]
then compares with previous stored 5-bits data last frame. present 5-bit data identical previous 5-bit
DO[4:0]
data, DO[4:0] valid flow chart back STANDBY state check next frames. present 5-bit data differs from previous data, DO[4:0] changed with only storing
Frames
present 5-bit data.
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GPRC2062A
5.4. R-oscillator
GPRC2062A also built-in R-oscillator. Only resistor capacitor needed) connected ROSC required users implement system clock input change resistor ROSC will easily different frame rate. Code 001A: Frame rate FOSC
DI[4:0]
5.7. Code 001A Code 002A description
GPRC2062A provides different kinds output timing selection achieve different application. output timing shown below:
GPRC2062A also built-in Clock Recovery block automatically adjust ratio data rate clock rate. ensure GPRC205A GPRC2062A communicate with each other well, deviation resistor ROSC pins should equal less than both GPRC205A GPRC2062A. Code 002A: (Use control output)
DI[4:0]
DO[4:0]
5.5. Super Regeneration Amplifier
GPRC2062A also provides built-in inverters, both provide input output pins, improve sensitivity reduce external component count. designed amplify These built-in inverters data output given
DO[3:2]
Super-Regeneration receiver. Users could easily change gain each inverter adjusting external resistors capacitors.
5.6. DC-DC Converter
step-up DC-DC Converter embedded GPRC2062A.
generates fixed output voltage (3.0V) using inductor, diode capacitor external components.
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GPRC2062A
5.8. Output Truth Table
GPRC205 Function Code DI1+ DI1+ level 100%) 60Hz flash 75%) GPRC2062A-002A GPRC2062A-001A GPRC2062 Output Status (Low active)
Note: DO[0] DO[1] exclusive DO[2] DO[3]. That's that DO[0] DO[1] DO[2] DO[3] active status(=Low) same time.
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GPRC2062A
ELECTRICAL SPECIFICATIONS
6.1. Absolute Maximum Ratings
Characteristics Supply Voltage Input Voltage Range Operating Temperature Storage Temperature
conditions AC/DC Electrical Characteristics.
Symbol TSTO
Ratings 7.0V -0.5V 0.5V +150
Note: Stresses beyond those given Absolute Maximum Rating table cause operational errors damage device. normal operational
6.2. Characteristics (VDD 3.0V,
Characteristics Operating Voltage Operating Current Input High level Input level Output High Current (DO) Output Sink Current (DO) pull resistor Frequency Maximum tolerance data rate Minimum tolerance data rate Maximum rejection data rate Minimum rejection data rate DC-DC start-up voltage DC-DC hold-on voltage DC-DC output voltage Symbol Min. RDIN FOSC FTOR,MAX FTOR,MIN FREJ,MAX FREJ,MIN VSTART VHOLD VOUT Limit Typ. -6.0 Max. R-OSC resistor 200K R-OSC resistor 200K Measure from 3.0V 3.0V 3.0V 3.0V, 2.4V 3.0V, 0.4V 3.0V ROSC 200K from 2.0V 5.5V FOSC 128KHz FOSC 128KHz FOSC 128KHz FOSC 128KHz VLOAD 1.0mA, VOUT 3.0V, 100µH VLOAD 1.0mA, VOUT 3.0V, 100µH Unit Test Condition
6.3. Relationships ROSC FOSC 6.3.1. 3.0V,
Frosc Rosc 2500 Frosc (KHz) 2000
Frosc(KHz)
6.4. Relationships FOSC
Frosc
1500 1000 Rosc (Kohm)
VDD(V)
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GPRC2062A
APPLICATION CIRCUITS
7.1. GPRC2062A Application Circuit
100u
1.2V
100u
DATA
200K
VBAT ROSC LVDET OUT1 OUT2
SPRC2062
GPRC2062
5819
100u
0.1u
270K
2.2K
DATA
VSS1
Right
Left
Backward
2.2K
3.9M 100P
C945
0.1u
0.1u
3.9M
Forward
2.2n
4.7u
3.3n
2.2K
Generalplus Technology Inc. Proprietary Confidential
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GPRC2062A
REFERENCE DESIGN
general application, `D0' defined `Forward'. `D1' defined `Backward'. `D2' defined `Left'. `D3' defined `Right'. `D4' defined `Turbo' other function.
8.1. 27MHz Mini-Car 8.1.1. battery 1.2VDC
100u
1.2V
VBAT ROSC LVDET OUT1 OUT2
5819
100u
100u
DATA
200K
0.1u
270K
2.2K
DATA
2.2K
VSS1
3.9M 100P
C945
Right
Left
0.1u
0.1u
3.9M
Backward
Forward
2.2n
4.7u
3.3n
2.2K
SPRC2062
GPRC2062
1.2V
1037
1037
1.2V
1.2V
Backward
Motor
Right
Left
Forward
1037
Coil
1037
Coil
1036
1036
8.2. Super Regenerative Receiver Application Testing Data
Characteristics Start-up Voltage Operation Current Consumption Standby Current Radio Frequency Band Controlling Distance Controlling Response Time Value 27.145 Unit Meter Test Condition load/ load VBAT 1.2V; Motor active VBAT 1.2V VBAT 1.2V VBAT 1.2V; ROSC 200K
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GPRC2062A
8.3. Bill Materials
Item Quantity Reference Part R14, R15, R16, R12, Value 2.2n 0.1u 100u 100P 4.7u 3.3n 5819 INDUCTOR IRON C945 1036 1037 270K 2.2K 3.9M 200K GPRC2062
8.3.1. batteries 2.4VDC, VBAT GPRC2062 should 1.0V
2.4V
R101
R100 100K
100u
100K
100u
VBAT ROSC LVDET OUT1 OUT2
GPRC2062
DATA
5819
VSS1
200K
100u
0.1u
270K
2.2K
2.2K
0.1u
DATA
3.9M 100P
Right
Left
C945
0.1u
3.9M
Backward
Forward
2.2n
4.7u
3.3n
2.2K
SPRC2062
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GPRC2062A
PACKAGE/PAD LOCATIONS
9.1. Assignment
VBAT
ROSCP
VSS1
VDDO
OUT1
OUT2
This substrate should connected
Note1: Chip size included scribe line. Note2: ensure that functions properly, please bond pins. Note3: 0.1µF capacitor between should placed close possible.
9.2. Ordering Information
Product Number GPRC2062A-001A-C GPRC2062A-002A-C Package Type Chip form Chip form
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GPRC2062A
9.3. Locations
Name VBAT ROSCP VDDO OUT1 OUT2 VSS1 -471 -471 -471 -471 -471 -471 -432 -200 -157 -389 -561 -561 -561 -557 -437 -317 -197
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GPRC2062A
DISCLAIMER
information appearing this publication believed accurate. Integrated circuits sold Generalplus Technology covered warranty patent indemnification provisions stipulated terms sale only. GENERALPLUS makes warranty, express, statutory implied description regarding information this publication regarding freedom described chip(s) from patent infringement. FURTHERMORE, GENERALPLUS MAKES WARRANTY MERCHANTABILITY FITNESS PURPOSE. GENERALPLUS reserves right halt production alter specifications prices time without notice. Accordingly, reader cautioned verify that data sheets other information this publication current before placing orders. Products described herein intended normal commercial applications.
Applications involving unusual environmental reliability requirements, e.g. military equipment medical life support equipment, specifically recommended without additional processing GENERALPLUS such applications. Please note that application circuits illustrated this document reference purposes only.
Generalplus Technology Inc. Proprietary Confidential
MAR. 2005 Version:
GPRC2062A
REVISION HISTORY
Date MAR. 2005 Revision Remove chip size. Original JUN. 2004 Note: GPRC2062A data sheet v1.0 continued version SPRC2062A data sheet v0.3. Description Page
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5-FUNCTIONS REMOTE CONTROL DECODER WITH BUILT-IN DC-DC CONVERTER

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