TMT T62M99A-K

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