tm TE CH T62M99A Digital Sound Processor Embedded 48K Bits SRAM T62M99A Features ! Operating voltage: 4.5V ~ 5.5V Description ! ADM algorithm ! Low noise ( -91dB typical) ! Low distortion rate (0.5% typical) ! Embedded 48k SRAM ! Automatic reset function ! Package type: 16-pin DIP/SOP The T62M99A is an echo/surround effect processor designed for various audio system applications such as Karaoke, television, VCD/DVD, sound equipment ,….. Etc. It consists of a built-in Voltage controlled Oscillator, Embedded 48Kbits SRAM, A/D and D/A converters as well as echo/surround delay time control logic. The embedded 48Kbits SRAM can generate delay time effect through the external VCO resister control which simplifies the application and make it easy adjustment. Application ! ! ! ! ! ! ! Television Karaoke systems Video disc player (CD/VCD/DVD) Sound equipment with Echo Processor. Video tape Recorder Car stereo Electronic Musical Instrument Part Number Examples Part NO. Pkg. Description T62M99A-D T62M99A-K 16-SOP 16-DIP 300mil-16-SOP 300mil-16-DIP TM Technology Inc. reserves the right to change products or specifications without notice. P. 1 Publication Date: JUN. 2004 Revision:B tm TE CH T62M99A Block Diagram LPF1 IN LPF2 O UT LPF1 O UT LPF2 IN O P2 O UT O P2 IN O P1 IN 4.7K Ohm O P1 O UT CC 0 CC 1 4.7K Ohm LPF2 + COM P MOD + - LPF1 + + - + - DEM 1/2 VCC DI AUTO RESET MO DO 0 MI CLO CK RAM VC C REF AGN D DO 1 VCO DGN D O SC _O VC O Pin Configurations T62M99A VCC 1 16 LPF1-IN REF 2 15 LPF1-OUT AGND 3 14 LPF2-OUT DGND 4 13 LPF2-IN OSC_O 5 12 OP2-OUT VCO 6 11 OP2-IN CC1 7 10 OP1-IN CC0 8 9 TM Technology Inc. reserves the right to change products or specifications without notice. P. 2 OP1-OUT Publication Date: JUN. 2004 Revision:B tm TE CH T62M99A Pin description Pin NO. Pin Name I/O Description 1 VCC - Analog and positive power supply 2 REF I Analog reference voltage 3 AGND - Analog ground 4 DGND - Digital ground 5 OSC_O I System oscillator output 6 VCO I System oscillator input,system frequency adjustable pin 7 CC1 - Current control1 8 CC0 - Current control0 9 OP1_OUT O OP1 output 10 OP1_IN I OP1 input 11 OP2_IN I OP2 input 12 OP2_OUT O OP2 output 13 LPF2_IN I Low pass filter2 input 14 LPF2_OUT O Low pass filter2 output 15 LPF1_OUT O Low pass filter1 output 16 LPF1_IN I Low pass filter1 input Function Description The T62M99A is an echo/surround effect generator with embedded 48k bits SRAM. It ensures low distortion as well as low noise for processing audio signal delay. The chip provides two playing modes(echo and surround) and the playing functional block diagrams are shown as follows. Surround Mode Vin LPF1 A/D Delay D/A LPF2 Delay D/A LPF2 Vout Echo Mode Vin LPF1 Vout A/D TM Technology Inc. reserves the right to change products or specifications without notice. P. 3 Publication Date: JUN. 2004 Revision:B tm TE CH T62M99A Electrical Characteristics Ta=25ºC Symbol Parameter Test Conditions VDD Conditions Min. Typ. Max. Unit VCC Operating Voltage - - 4.5 5.0 5.5 V ICC Operating Current 5V - - 15 30 mA GV Voltage Gain 5V RL=47KΩ - 0.5 2.5 dB VOMAX Maximum Output Voltage 5V THD=10% 1.0 1.5 - Vrms THD Total Harmonic Distortion 5V 30KHz L.P.F. - 0.5 1.5 % Output Noise Voltage 5V DIN Audio - -91 - dbV No Absolute Maximum Ratings Supply Voltage …………………………………………………. Input Voltage …………………………………………………… Storage Temperature ……………………………………………. Operating Temperature ………………………………………….. -0.3V to 6V Vss-0.3V to VDD+0.3V -50ºC to 125ºC -20ºC to 70ºC Note: These are stress ratings only. Stresses exceeding the range specified as “Absolute Maximum Ratings” may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability. TM Technology Inc. reserves the right to change products or specifications without notice. P. 4 Publication Date: JUN. 2004 Revision:B tm TE CH T62M99A Application Circuits INPUT Echo Mode 15k 3900pF 4.7uF 10k 100K VCC T62M99A 3 47uF 4 5 6 VCC LPF1-IN 4.7k OUTPUT 10uF REF AGND LPF1-OUT LPF2-OUT 5.6K 15 14 DGND 10uF 0.01uF 15k OSC_O LPF2-IN OP2-OUT VCO 560pF 13 12 18k 10K R 2 7 8 0.1uF CC1 OP2-IN OP1-IN CC0 0.082uF 0.1uF OP1-OUT AGND 50K 11 10 9 10k 0.082uF 3300pF 1 20K 4.7uF 10k 560pF 16 3 2 100uF 0.1uF 1 DGND Surround Mode 5600pF INPUT VCC T62M99A 100uF 0.1uF 1 2 47uF 3 4 5 6 Radj 7 8 0.1uF VCC LPF1-IN 10k LPF1-OUT LPF2-OUT DGND VCO LPF2-IN OP2-OUT 13 12 15K OP2-IN OP1-IN 11 10 0.1uF 0.1uF OP1-OUT AGND OUTPUT 2.7k 10uF 0.01uF 10K CC1 CC0 100K 15k 15 14 560pF OSC_O 4.7uF 560pF REF AGND 15k 16 9 15K 5600pF 0.1uF DGND Note:”Radj” Value set delay time. R/delay time Reference on Resistance / Delay Time Table. TM Technology Inc. reserves the right to change products or specifications without notice. P. 5 Publication Date: JUN. 2004 Revision:B tm TE CH T62M99A Resistance / Delay Time Table . Radj 27.6K 21.3K 17.2K 14.3K 12.1K 10.5K 9.2K 8.2K Fck 2.17M 2.75M 3.3M 3.83M 4.45M 5M 5.61M 6.05M TD 357ms 282ms 235ms 198ms 172ms 152ms THD+N% 0.95% 0.74% 0.59% 0.50% 0.43% 0.39% 0.34% 0.31% 137.4ms 125.3ms Radj 7.2K 6.4K 5.8K 5.4K 4.9K 4.5K 4K 3.4K Fck 6.71M 7.23M 7.8M 8.42M 8.94M 9.37M 10.1M 11.3M 96ms 89.2ms 83.3ms 79.2ms 72.8ms 64.8ms 0.26% 0.24% 0.23% 0.22% 0.22% 0.20% 0.19% TD 112.8ms 104.1ms THD+N% 0.28% Radj 2.8K 2.4K 2K 1.67K 1.47K 1.28K 1.08K 894 Fck 12.6M 13.5M 14.4M 15.4M 16M 16.6M 17.4M 18.1M TD 57.7ms 53.6ms 49.9ms 46.5ms 44.1ms 42.9ms 40.6ms 38.7ms 0.15% 0.15% 0.15% 0.15% 0.14% 0.14% THD+N% 0.18% 0.16% Radj 723 519 Fck 18.8M 19.9M TD 37.2ms 34.9ms THD+N% 0.14% 0.13% Note :This Table is for Surround Mode. Radj= External Resister for adjust FCK & TD. FCK= Oscillate output Frequency for Pin 5 .(Unit : MHZ) TD=Delay Time for audio output. THD=Total Harmonic Distortion. (TDH+N Ratio %) 5ms 2.0VPP 2VDC 5ns 1HZ Pulse Clock Waveform for input Pin TM Technology Inc. reserves the right to change products or specifications without notice. P. 6 Publication Date: JUN. 2004 Revision:B tm TE CH T62M99A PACKAGE DIMENSIONS 16-LEAD SOP ( Unit:mm ) 10.0 +-0.2 2.54 +-0.1 7.5 +-0.2 10.2 +-0.3 1.27 0.11 0.3 min. 0.4 +-0.1 16-LEAD DIP 0.15 +-0.1 ( Unit:mm ) TM Technology Inc. reserves the right to change products or specifications without notice. P. 7 Publication Date: JUN. 2004 Revision:B