tm TE CH T62M0002A Digital Sound Processor Embedded SRAM T62M0002A Features Description ! ! ! ! ! The T62M0002A is an echo/surround effect processor. It is designed for various audio systems including karaoke, television, sound equipment, etc. The chip consists of a built-in pre-amplifier, VCO or Voltage control OSC, Embedded SRAM, A/D and D/A converters as well as delay time control logic. Its built-In reply to SRAM can generate delay time effect and can control the delay time value through the external VCO resistor. The VCO circuit can reduce external components and make it easy to adjust the delay time. ! ! Operating voltage: 4.5V ~ 5.5V ADM algorithm Low noise ( -88dB typical) Low distortion rate (0.5% typical) Embedded SRAM Automatic reset function Package type: 16-pin DIP/SOP Part Number Examples Part NO. Package Description T62M0002A-D 16-SOP 300mil-16-SOP T62M0002A-K 16-DIP T62M0002A-DG 16-SOP T62M0002A-KG 16-DIP 300mil-16-DIP 300mil-16-SOP lead free 300mil-16-DIP lead free TM Technology Inc. reserves the right to change products or specifications without notice. P. 1 Publication Date: MAR. 2007 Revision:B tm TE CH T62M0002A Block Diagram L P F1 IN L P F1 O UT L P F2 O UT OP2 O UT L P F2 IN OP2 IN 4 .7 K O hm OP1 IN OP1 O UT CC0 CC1 4 .7 K O hm L P F2 + C O MP MOD + - L P F1 + + - + - DEM 1 /2 VC C DI AUT O RESET MO DO0 MI C LO C K R AM VCC R EF A GN D DO1 VC O D GN D OS C_O VCO PIN Configuration T62M0002A TM Technology Inc. reserves the right to change products or specifications without notice. P. 2 Publication Date: MAR. 2007 Revision:B tm TE CH T62M0002A PIN Description Pin NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pin Name VCC REF AGEND DGEND OSC_O VCO CC1 CC2 OP1_OUT OP1_IN OP2_IN OP2_OUT LPF2_IN LPF2_OUT LPF1_OUT LPF1_IN I/O I I I O I I O I O O I Description Analog and positive power supply Analog reference voltage Analog ground Digital ground System oscillator output System oscillator input,system frequency adjustable pin Current control1 Current control2 OP1 output OP1 input OP2 input OP2 output Low pass filter2 input Low pass filter2 output Low pass filter1 output Low pass filter1 input Function Description The T62M0002A is an echo/surround effect generator with built-in SRAM. It enaures low distortion as well as low noise for processing audio signal delay. The chip provides two playing modes(echo and surround) and the playing function block diagrams are shown as follows. - Surround Mode Vin LPF1 A/D -Echo Mode Vout Vin LPF1 A/D Delay D/A LPF2 Delay D/A LPF2 TM Technology Inc. reserves the right to change products or specifications without notice. P. 3 Vout Publication Date: MAR. 2007 Revision:B tm TE CH T62M0002A Electrical Characteristics Ta=25ºC Symbol VCC ICC GV VOMAX THD No Parameter Operating Voltage Operating Current Voltage Gain Maximum Output Voltage Total Harmonic Distortion Output Noise Voltage Test Conditions VDD Conditions 5V 5V RL=47KΩ 5V 5V 5V Min. Typ. Max. Unit 4.5 - 5.0 15 0.5 5.5 30 2.5 V mA dB 1.0 - 1.6 0.5 -88 1.5 -80 Vrms % dbV THD=10% 30KHz L.P.F. DIN Audio Absolute Maximum Ratings Supply Voltage …………………………………………………. -0.3V to 6V Input Voltage …………………………………………………… Vss-0.3V to VDD+0.3V Storage Temperature ……………………………………………. -50ºC to 125ºC Operating Temperature ……………………………… -20ºC to 70ºC Note: These are stress ratings only. Stresses exceeding the range specified under “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: MAR. 2007 Revision:B tm TE CH T62M0002A Application Circuits C15 Echo Mode INPUT R11 4700pF R10 20k C16 4.7uF 100K VCC C18 U2 1 C22 4.7uF 2 3 4 5 R20 7 8 C29 C30 0.33uF 0.33uF LPF1-IN REF LPF1-OUT AGND LPF2-OUT DGND LPF2-IN OSC_O 6 Radj R22 20K VCC OP2-OUT VCO OP2-IN CC1 OP1-IN CC0 OP1-OUT 560pF 16 R13 2.7k R14 18k 15 R16 20K 13 C25 C24 560pF 0.01uF 12 R18 3K R19 10K 11 C26 0.1uF 2 R17 R21 18K 10 9 OUPUT C23 1uF R15 5.6K 14 C19 1uF 3 0.1uF C21 100uF C17 1uF 50K C27 C28 0.1uF 4700pF 1 C20 R12 10k T62M0002A AGND DGND C1 Surround Mode 4700pF INPUT R3 VCC C4 0.1uF C5 100uF 1 C6 4.7uF 2 3 4 5 R8 Radj 6 7 8 C13 C14 0.33uF 0.33uF R1 10k C3 U1 R2 20k C2 4.7uF 100K VCC LPF1-IN REF LPF1-OUT AGND LPF2-OUT DGND LPF2-IN OSC_O OP2-OUT VCO OP2-IN CC1 OP1-IN CC0 OP1-OUT 560pF 16 R4 18k 15 R5 2.7k 14 OUPUT R6 18K 13 C8 560pF 12 11 C7 1uF C9 0.01uF R7 10K C10 0.1uF R9 20K 10 9 C12 0.1uF C11 4700pF T62M0002A AGND DGND Note:”Radj” Value con 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: MAR. 2007 Revision:B tm TE CH T62M0002A Resistance / Delay Time Table . FCK 2.0M 2.5M 3.0M 3.5M 4.0M 4.5M 5.0M 5.5M Radj 53.40k 41.97k 33.41k 28.18k 24.00k 20.90k 18.20k 16.00k TD THD+N % 264ms 226ms 174ms 150ms 130ms 117ms 106ms 95.2ms 1.29% 0.95% 0.73% 0.57% 0.48% 0.41% 0.37% 0.33% FCK 6.0M 6.5M 7.0M 7.5M 8.0M 8.5M 9.0M 10M Radj 14.50k 12.90k 11.60k 10.70k 9.72k 9.07k 8.07k 6.98k TD THD+N % 89ms 80.8ms 74.8ms 70.4ms 65.2ms 62.4ms 57.6ms 52.4ms 0.29% 0.28% 0.25% 0.24% 0.22% 0.22% 0.21% 0.18% FCK 11M 12M 13M 14M 15M 16M 17M 18M Radj 5.99k 5.30k 4.52k 4.02k 3.48k 3.08k 2.64k 2.30k TD THD+N % 47.6ms 44.2ms 40.2ms 37.6ms 35.0ms 33.0ms 30.8ms 29.0ms 0.17% 0.15% 0.14% 0.14% 0.14% 0.14% 0.14% 0.14% FCK 19M 20M 21M 22M Radj 2.16k 1.89k 1.69k 1.49k TD 27.8ms 26.2ms 25.0ms 24.0ms THD+N 0.14% 0.14% 0.14% 0.14% % Note :This Table is for Surround Mode. R= Extend Resister for adjust FCK & TD. FCK= Oscillate output Frequency for Pin 5 .(Unit : MHZ) TD=Delay Time for output. THD=Total Harmonic Distortion. (TDH+N Ratio %) 5m s 2 .0 VP P 2 VD C 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: MAR. 2007 Revision:B tm TE CH T62M0002A IC Package T62M0002A 16-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 T62M0002A 0.15 +-0.1 16-DIP Unit:mm TM Technology Inc. reserves the right to change products or specifications without notice. P. 7 Publication Date: MAR. 2007 Revision:B