GPCR03B GENERALPLUS | Alldatasheet
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- GENERAL DESCRIPTION The GPCR03B is a record and pla yback device without CPU. It includes 256K-bit w orking SRAM cap able of storing approximately 1 0 seconds of au dio or speech d ata (@ 6.0KHz sampling rate). Easy-to-use with low power consumption, it has MIC (microphon e) input, A GC fu nction, one PWM audio outp ut and direct speak er driver offering the simplest solution for use rs. For audio processing, melody and speech can be mixed into one output. It operates over a w ide operating volt age range (2.4V - 5.5V) providing various batter y options. Providing the best cost/performance ratio for user s, the GPC R03B includes, not only the latest t echnology, but also the full commitment and technical support of Generalplus. 2. BLOCK DIAGRAM AUDPCLOCK GENERATOR ADDRESS COUNTER MICPHONE INPUT AUTOMATIC GAIN CONTROL CONTROL LOGIC 256K BITS MEMORY CELL ADPCM DECODER PWM OUTPUT ROSC OP1I OP1O RECO PLAY ADPCM ENCODER MIC ALC AUDN LOWPRESS FILTER 3. FEATURES Nature, high-quality playback suitable for voice, music, and tones Single-chip voice record and playback device Microphone preamplifier Automatic gain control Direct speaker driver Built in 256K-bit SRAM Wide operating voltage: 2.4V - 5.5V Frequency of playing and recording: 4K - 12KHz 4. APPLICATION FIELD Memo Message Recorder Hand-Carried Message Recorder Recordable Toys © Generalplus Technology Inc. Proprietary & Confidential 1 JUN. 22, 2005 Version: 1.2
- SIGNAL DESCRIPTIONS Mnemonic Type PIN No. Description ROSC I 6 The “ROSC” pin connect s w ith an exter nal re sistor to VDD. T o cooperate w ith a variable resistor, the f requency for recording a nd playing are adjustable to fulfill user ’s specifications. PLAY I 5 PLAY , The play-request pin is normally connected to a ke y. When the key is pressed (falling edge active), the GPCR03B is able to perform the play function. RECO I 4 RECO , the record-request pin is normally connected to a key. The GPCR03B is able to record voice as long as the key is being pressed (low active). MIC I 14 Microphone input ALC I 13 Automatic gain control input OP1O O 12 Analog output of MIC preamplifier OP1I I 11 Analog input of low pass filter LED O 3 The state of this pin will be high while recording. AUDP O 8 PWM driver positive output AUDN O 9 PWM driver negative output AVDD, VDD Power 15, 7 Analog and Digital power buses AVSS, VSS Ground 10, 1 Analog and Digital ground buses Play_Busy O 2 The state of this pin is high while playing. PLAY_BUSY ( Active High when playing) PLAY (Falling Edge Triggering) tDBS Note: The de-bounce time (tDBS) of PLAY is Fs 1 * 412 , where Fs is the sampling rate. RECLED (Active High when recording) Beep (Level Triggering)RECO © Generalplus Technology Inc. Proprietary & Confidential 2 JUN. 22, 2005 Version: 1.2
- ELECTRICAL SPECIFICATIONS 6.1. Absolute Maximum Ratings Characteristics Ratings Operating Temperature 0°C to 70°C Storage temperature range -65°C to 150°C Voltage applied to any pin (VSS-0.3V) to (VDD+0.3V) Lead temperature Soldering - 10 seconds 300°C VDD - VSS -0.3V to 7.0V Note: Stresses beyond those given in the Absolute Maximum Ratings table may cause operational errors or damage to the device. For normal operational conditions see AC/DC Electrical Characteristics. 6.2. DC Characteristics Limit Characteristics Symbol Min. Typ. Max. Unit Test condition Operating Voltage VDD 2.4 - 5.5 V Temperature = 25°C ICC1 - 2.0 - No load, VDD = 4.5V Operating Current ICC2 - - 120 mA 8.0Ω Speaker, VDD = 4.5V Standby Current ISB - 1.0 2.0 µA VDD = 4.5V Input High Voltage VIH 0.7 x VDD - VDD V - Input Low Voltage VIL VSS - 0.2 x VDD V - Output High Voltage VOH 4.0 - - V VDD = 4.5V, IOH = 2.0mA Output Low Voltage VOL - - 0.4 V VDD = 4.5V, IOL = 4.0mA Sample Rate FS 4.0K - 12K Sa/Sec VDD = 4.5V Oscillation Resistor ROSC 18K - 62K Ω VDD = 4.5V Rosc vs. Sample Rate 2.0 4.0 6.0 8.0 10.0 12.0 14.0 15 25 35 45 55 65 Rosc (K Ohm) Sample Rate (K Sa/Sec) VDD=3.0V VDD=4.5V Figure 1. © Generalplus Technology Inc. Proprietary & Confidential 3 JUN. 22, 2005 Version: 1.2
- APPLICATION CIRCUIT The s ystem i s cap able of reco rding as l ong as the RECO switch i s bei ng pressed (l evel tri ggering). The reco rded message or audio can be played back when the PLAY sw itch is pressed (Fal ling edge t riggering). When s ystem i s recordi ng, the LED light from RELED will be on until the end of recording. (3V) AUDP VDD AUDN VSS AVSS OP1I OP1O AVDD ROSC ALC MIC GPCR03B 0.1µF VDD RECLED Play_Busy (RECO_BUSY) 510K 150p RECO PLAY 0.1µF 200K speaker VR* VDD R4 C4 0.047 C6 2.2K 2.2K R1 R6 2K 10µ MIC (3V) 220µF Adjustable for alternating frequency Note1: * The case frequency can be varied by adjusting the value of VR. The purpose of remolding the frequency is to change the speech frequency; for example, a man’s voice can be al tered to be come a w oman’s v oice or v ice v ersa. The rel ationship be tween ROSC and speech frequency is illustrated in Figure 1. Note2: **For the application of VDD is 5.0V, R4 instead of 220K and C4 instead of 330P. © Generalplus Technology Inc. Proprietary & Confidential 4 JUN. 22, 2005 Version: 1.2
- PACKAGE/PAD ALLOCATION 8.1. PAD Assignment This IC substrate should be connected to VDD Note1: To ensure that the IC functions properly, please bond all of VDD and VSS pins. Note2: The 0.1µF capacitor between VDD and VSS should be placed to IC as close as possible. 8.2. Ordering Information Product Number Package Type GPCR03B - C Chip form © Generalplus Technology Inc. Proprietary & Confidential 5 JUN. 22, 2005 Version: 1.2
- DISCLAIMER The information appearing in this publication is believed to be accurate. Integrated circuits sold by Generalplus Technology are covered by the warranty and patent indemnification provisions sti pulated in the terms of sal e only. GENERALPLUS makes no w arranty, express, statutory implied or b y description regarding the information in this publication or regarding the freedom of the described chip(s) from patent infringement. FURTHERMORE, GENERALPLUS MAKES NO WARRANTY OF MERCHANTABILITY OR FIT NESS FOR AN Y P URPOSE. GENERALPLUS reserves the ri ght to hal t production or alter the specifications and prices at any time without notice. Accordingly, the reader is cautioned to verify that the data sheets and other information in this publication are current befor e placing orders. Products described herein are i ntended for use i n normal commercial applications. Applications involving unusual envi ronmental or reliability requirements, e.g. military equipment or medical lif e support equipment, are specifically not recommended without additional processing by GENERALPLUS for such applications. Please note that application circuits illustrated in this document are for reference purposes only. © Generalplus Technology Inc. Proprietary & Confidential 6 JUN. 22, 2005 Version: 1.2
- REVISION HISTORY Date Revision # Description Page MAR. 03, 2005 1.1 Remove Chip Size 5 JUN. 07, 2004 1.0 Original Note: The GPCR03B data sheet v1.0 is a continued version of SPCR03B data sheet v1.2. © Generalplus Technology Inc. Proprietary & Confidential 7 JUN. 22, 2005 Version: 1.2