T62M0002A中文资料
T62M0002A
Digital Sound Processor Embedded
SRAM
Features
! 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 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 V oltage 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.
Part Number Examples
Part NO. Pkg Description
T62M0002A-j 16-SOP 300mil-16-SOP
T62M0002A-K 16-DIP 300mil-16-DIP
TM Technology Inc. reserves the right P. 1 Publication Date: JUL. 2002
TM Technology Inc. reserves the right P. 2 Publication Date: JUL. 2002 Block Diagram
LP F1 IN
LP F1O UT
LP F2O UT
LP F2IN
O P 2O UT
O P 2IN O P 1IN
O P 1O UT
C C 0C C 1
V C C R EF A GN D
D GN D O S C _O V C O
PIN Configuration
T62M0002A
TM Technology Inc. reserves the right P. 3 Publication Date: JUL. 2002 PIN Description
Pin NO. Pin Name I/O Description 1 VCC - Analog and positive power supply 2 REF I Analog reference voltage 3 AGEND - Analog ground 4 DGEND - Digital ground 5 OSC_O I System oscillator output 6 VCO I System oscillator input,system frequency adjustable pin 7 CC1 - Current
control1
8 CC2
- Current
control2 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 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
out -Echo Mode
Electrical Characteristics
Ta=25oC Symbol Parameter
Min. Typ. Max. Unit
Test Conditions
VDD Conditions
V oltage - - 4.5 5.0 5.5 V V CC Operating
Current 5V - - 15 30 mA
I CC Operating
Gain 5V R
G V V oltage
=47K?- 0.5 2.5 dB
L
V OMAX Maximum Output V oltage 5V THD=10% 1.0 1.6 - Vrms THD Total Harmonic Distortion 5V 30KHz L.P.F. - 0.5 1.5 %
No Output Noise V oltage 5V DIN Audio - -88 -80 dbV Absolute Maximum Ratings
Supply V oltage …………………………………………………. -0.3V to 6V
Input V oltage …………………………………………………… 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 P. 4 Publication Date: JUL. 2002
Application Circuits
Note:”Radj” Value con set delay time. R/delay time Reference on Resistance / Delay Time Table.
TM Technology Inc. reserves the right P. 5 Publication Date: JUL. 2002
TM Technology Inc. reserves the right P. 6 Publication Date: JUL. 2002 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 264ms 226ms 174ms 150ms 130ms 117ms 106ms 95.2ms THD+N
% 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 89ms 80.8ms 74.8ms 70.4ms 65.2ms 62.4ms 57.6ms 52.4ms THD+N
% 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 47.6ms 44.2ms 40.2ms 37.6ms 35.0ms 33.0ms 30.8ms 29.0ms THD+N
% 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 %)
Pulse Clock Waveform for input Pin
TM Technology Inc. reserves the right
P. 7 Publication Date: JUL. 2002 IC Package
T62M0002A 16-SOP
Unit:mm
T62M0002A 16-DIP
Unit:mm