T62M99A TMT | Alldatasheet

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Technical content

Features

! Operating voltage: 4.5V ~ 5.5V ! ADM algorithm ! Low noise ( -91dB typical) ! Low distortion rate (0.5% typical) ! Embedded 48k SRAM ! Automatic reset function ! Package type: 16-pin DIP/SOP 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 16-SOP 300mil-16-SOP T62M99A-K 16-DIP 300mil-16-DIP

Description

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.

TM Technology Inc. reserves the right P. 2 Publication Date: JUN. 2004 to change products or specifications without notice. Revision:B Block Diagram + MOD DEM DI DO0 DO1 MO MI CLOCK VCC AUTO RESET VCORAM LPF1 IN LPF1 OUT LPF2 OUT LPF2 IN OP2 OUT OP2 IN OP1 IN OP1 OUT CC0 CC1 VCC REF AGND DGND OSC_O VCO 4.7K Ohm 4.7K Ohm LPF1 COMP LPF2 Pin Configurations REF VCC AGND DGND OSC_O CC1 VCO CC0 8 9

14 LPF2-OUT

TM Technology Inc. reserves the right P. 3 Publication Date: JUN. 2004 to change products or specifications without notice. Revision:B 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

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 Vout Echo Mode Vout Vin LPF1 A/D Delay D/A LPF2

TM Technology Inc. reserves the right P. 4 Publication Date: JUN. 2004 to change products or specifications without notice. Revision:B

Electrical Characteristics

T a = 2 5 º C Test Conditions Symbol Parameter 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 No Output Noise Voltage 5V DIN Audio - -91 - dbV Absolute Maximum Ratings 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 P. 5 Publication Date: JUN. 2004 to change products or specifications without notice. Revision:B Application Circuits 0.1uF 10k 4.7uF 560pF 20K 10k OUTPUT 100uF 16VCC REF AGND DGND OSC_O VCO CC1 CC0 OP1-OUT OP1-IN OP2-IN OP2-OUT LPF2-IN LPF2-OUT LPF1-OUT LPF1-IN 18k AGND VCC T62M99A 50K 10uF 0.1uF 3900pF 4.7uF 0.1uF 4.7k 0.082uF 10K 3300pF 560pF 10k 5.6K 0.01uF 10uF 15k 0.082uF 47uF R 100K 15k DGND Echo Mode INPUT 15K DGND 0.1uF 47uF 5600pF INPUT 15K 100K 10uF 15k 15k 0.1uF OUTPUT 100uF AGND 10K 4.7uF 0.1uF 560pF 2.7k 0.1uF VCC 10k 0.01uF Radj 0.1uF 16VCC REF AGND DGND OSC_O VCO CC1 CC0 OP1-OUT OP1-IN OP2-IN OP2-OUT LPF2-IN LPF2-OUT LPF1-OUT LPF1-IN T62M99A 5600pF Surround Mode 560pF Note:”Radj” Value set delay time. R/delay time Reference on Resistance / Delay Time Table.

TM Technology Inc. reserves the right P. 6 Publication Date: JUN. 2004 to change products or specifications without notice. Revision:B Resistance / Delay Time Table . TD 357ms 282ms 235ms 198ms 172ms 152ms 137.4ms 125.3ms 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 %) 1HZ5ns 5ms 2.0V PP 2V DC Pulse Clock Waveform for input Pin

TM Technology Inc. reserves the right P. 7 Publication Date: JUN. 2004 to change products or specifications without notice. Revision:B PACKAGE DIMENSIONS 16-LEAD SOP ( Unit:mm ) 7.5 +-0.2 10.2 +-0.3 10.0 +-0.2 1.27 2.54 +-0.1 0.11 0.4 +-0.1 0.3 min. 0.15 +-0.1 16-LEAD DIP ( Unit:mm )