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! ! ! ! ! ! !
TE CH
T62M99A
T62M99A
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
Digital Sound Processor Embedded 48K Bits SRAM
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.
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.
T62M99A-D T62M99A-K T62M99A-DG T62M99A-KG
Pkg.
16-SOP 16-DIP 16-SOP 16-DIP
Description
300mil-16-SOP 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:C
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TE CH
T62M99A
Block Diagram
LPF1 IN LPF1 O UT LPF2 O UT LPF2 IN O P2 O UT
4.7K Ohm LPF2 LPF1 COM P
O P2 IN
O P1 IN
4.7K Ohm
O P1 O UT
CC 0
CC 1
+ +
MOD
+ -
1/2 VCC
VC C
REF
AGN D
Pin Configurations
T62M99A VCC REF AGND DGND OSC_O VCO CC1 CC0 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 LPF1-IN LPF1-OUT LPF2-OUT LPF2-IN OP2-OUT OP2-IN OP1-IN OP1-OUT
TM Technology Inc. reserves the right to change products or specifications without notice.
+ -
+ -
DEM
AUTO RESET
DI MO MI CLO CK
DO 0
DO 1
RAM
VCO
DGN D
O SC _O VC O
P. 2
Publication Date: MAR. 2007 Revision:C
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
TE CH
T62M99A
Pin description
Pin NO. Pin Name VCC REF AGND DGND OSC_O VCO CC1 CC0 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 control0 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 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 Vin LPF1 Vout A/D Delay D/A LPF2
TM Technology Inc. reserves the right to change products or specifications without notice.
P. 3
Publication Date: MAR. 2007 Revision:C
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Symbol VCC ICC GV VOMAX THD No
TE CH
T62M99A
Electrical Characteristics (Ta=25ºC)
Parameter Test Conditions VDD Operating Voltage Operating Current Voltage Gain Maximum Output Voltage Total Harmonic Distortion Output Noise Voltage 5V 5V 5V 5V 5V Conditions RL=47KΩ THD=10% 30KHz L.P.F. DIN Audio 4.5 1.0 5.0 15 0.5 1.5 0.5 -91 5.5 30 2.5 1.5 V mA dB Vrms % dbV Min. Typ. Max. Unit
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: MAR. 2007 Revision:C
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VCC
TE CH
T62M99A
Application Circuits
Echo Mode
T62M99A
1 VCC REF AGND DGND OSC_O VCO CC1 CC0 OP2-IN OP1-IN LPF2-IN OP2-OUT 13 12 LPF1-OUT LPF2-OUT 15 14 LPF1-IN 16 INPUT
3900pF 10k 560pF
15k
4.7uF 100K
4.7uF 10k
4.7k
OUTPUT
0.1uF
2
10uF 5.6K 15k 560pF 10K
2 11 10
100uF
47uF
3 4 5 6
10uF 0.01uF
3
18k 50K
20K 0.1uF
R
7 8
0.1uF
OP1-OUT 9
0.082uF 0.082uF
10k 3300pF
1
AGND
DGND
Surround Mode
5600pF
VCC INPUT
T62M99A
1 VCC REF AGND DGND OSC_O VCO CC1 CC0 OP2-IN OP1-IN LPF2-IN OP2-OUT LPF1-OUT LPF2-OUT 15 14 LPF1-IN 16
10k 560pF 15k
15k
4.7uF
100K
0.1uF
100uF
2
47uF
3 4 5 6
OUTPUT
560pF
13 12
2.7k 15K 10K
10uF 0.01uF
Radj
7 8
11 10
0.1uF
0.1uF
OP1-OUT 9
0.1uF 0.1uF
15K 5600pF
AGND
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: MAR. 2007 Revision:C
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Radj Fck TD
TE CH
T62M99A
Resistance / Delay Time Table .
27.6K 2.17M 357ms 21.3K 2.75M 282ms 0.74% 17.2K 3.3M 235ms 0.59% 14.3K 3.83M 198ms 0.50% 12.1K 4.45M 172ms 0.43% 10.5K 5M 152ms 0.39% 9.2K 5.61M 8.2K 6.05M
137.4ms 125.3ms 0.34% 0.31%
THD+N% 0.95%
Radj Fck TD
7.2K 6.71M
6.4K 7.23M 0.26%
5.8K 7.8M 96ms 0.24%
5.4K 8.42M 89.2ms 0.23%
4.9K 8.94M 83.3ms 0.22%
4.5K 9.37M 79.2ms 0.22%
4K 10.1M 72.8ms 0.20%
3.4K 11.3M 64.8ms 0.19%
112.8ms 104.1ms
THD+N% 0.28%
Radj Fck TD
2.8K 12.6M
2.4K 13.5M 0.16%
2K 14.4M 49.9ms 0.15%
1.67K 15.4M 46.5ms 0.15%
1.47K 16M 44.1ms 0.15%
1.28K 16.6M 42.9ms 0.15%
1.08K 17.4M 40.6ms 0.14%
894 18.1M 38.7ms 0.14%
57.7ms 53.6ms
THD+N% 0.18%
Radj Fck TD
723 18.8M
519 19.9M 0.13%
37.2ms 34.9ms
THD+N% 0.14%
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: MAR. 2007 Revision:C
tm
TE CH
T62M99A
PACKAGE DIMENSIONS 16-LEAD SOP ( Unit:mm )
10.0 +-0.2 1.27
0.11 0.4 +-0.1
2.54 +-0.1
7.5 +-0.2 10.2 +-0.3
0.15 +-0.1 0.3 min.
16-LEAD DIP
( Unit:mm )
TM Technology Inc. reserves the right to change products or specifications without notice.
P. 7
Publication Date: MAR. 2007 Revision:C
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