SM7186 [SAMHOP]
Built-in adjustable OSC; 内置的可调振荡器
| 型号： | SM7186 |
| 厂家： | 
SAMHOP MICROELECTRONICS CORP. |
| 描述： | Built-in adjustable OSC |
| 文件： | 总10页 (文件大小：186K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
SM7186
DESCRIPTIONS:
FEATURE:
SM7186 is an Audio Echo Processor
using CMOS Technology. It has built-in
AD/DA and 48KBits SRAM for time delay.
External Resister adjust large range
oscillation frequency and control delay
time. Many combination to fit your
applications.
* Built-in adjustable OSC.
* Built-in power on reset circuit.
* Built-in 48KBits SRAM for delay control.
* Adjustable delay time setting:
30ms ~ 700ms
* Low operating current.
APPLICATIONS:
* VCD
* Karaoke
* TV
* Audio System
* Car Stereo
* VCR
VDD
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
OP1-IN
VREF
AGND
DGND
OSCO
OSCR
DACTL
ADCTL
OP1-OUT
OP2-OUT
OP2-IN
DAC-OUT
DAC-IN
ADC-IN
ADC-OUT
MAR. 2000
Page 1
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
PIN DESCRIPTION
PIN No.
PIN NAME
VDD
I/O
Power
AI/O
FUNCTION
Positive power supply
Analog reference voltage
Analog negative power supply
Digital negative power supply
System clock output
Add resistor to modify internal OSC
DAC control
1
2
VREF
3
AGND
Power
Power
OSC
OSC
AIN
4
DGND
5
OSCO
6
OSCR
7
DACTL
ADCTL
ADC-OUT
ADC-IN
DAC-IN
DAC-OUT
OP2-IN
OP2-OUT
OP1-OUT
OP1-IN
8
AIN
ADC control
9
AOUT
AIN
ADC OP output
10
11
12
13
14
15
16
ADC OP input
AIN
DAC OP input
AOUT
AIN
DAC OP output
OP2 input
AOUT
AOUT
AIN
OP2 output
OP1 output
OP1 input
Page 2
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
BLOCK DIAGRAM
D
A
C
T
L
D
A
C
D
A
C
A
D
C
A
D
C
A
D
C
T
L
I
N
O
U
T
O
U
T
I
N
OP1-IN
Low Pass
Filter
AD Converter
DA Converter
VDD
OP2-IN
AGND
DGND
Mix
SRAM
OP1-OUT
OP2-OUT
Low Pass
Filter
OSCO
OSC
Verf
POR
Digital Control
OSCR
VREF
Page 3
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
Echo Mode & Surround Mode
Audio
out
Low Pass
Filter
AD Converter
DA Converter
Audio In
Add
SRAM
Low Pass
Filter
Echo Mode
Low Pass
Filter
AD Converter
DA Converter
Audio In
SRAM
Low Pass
Filter
Audio Out
Surround Mode
Page 4
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
DELAY TIME TABLE
OSCR
Fosc (MHz)
1.047
1.989
3.935
4.893
5.974
7.977
9.99
Delay Time ms
737.28
368.64
184.32
160.00
122.88
92.16
:
:
:
:
:
:
:
:
:
:
:
:
:
:
160K
75K
33K
24K
18K
11K
6.8K
4.7K
3.3K
2.4K
1.8K
1.5K
1.1K
820
73.73
11.84
13.72
15.94
18.18
19.68
22.05
23.87
61.44
52.66
46.08
40.96
36.86
33.51
30.72
Page 5
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
AC CHARACTERISTICS
( Vcc = 5.0V, f in = 1KHz, Vi = 100mVrms, fck = 4.608MHz, Ta = 25oC, unless
otherwise noted )
SYMBOL
Icco
PARAMETER
Supply current
Voltage gain
Test condition
Min Typ Max Unit
10 20 mA
RL = 47K:
Gv
-0.5 2.5 dB
Maximum output
voltage
THD = 10%
0.8 1.4
0.38 0.9
Vrms
%
Vomax
THD
Output distortion
-85 -70 dBV
Output noise voltage
No
Vcc = -20dBV
f = 100Hz
Power supply
rejection ratio
PSRR
Tmute
-40 -25 dB
Mute time
560 600 640 msec
DC CHARACTERISTICS
Limits
Min Typ Max
Symbol
Parameter
Unit
Vcc
Icc
Supply voltage
Supply current
"H" input voltage
"L" input voltage
V
mA
V
4.5
5
5.5
20
10
VIH
VIL
0.7V
0.3V
V
Page 6
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
ABSOLUTE MAXIMUM RATINGS
( Ta = 25 oC, unless otherwise noted )
Symbol
Vcc
Decription
Supply voltage
Limits
6.5
Unit
V
Icc
Supply current
100
mA
W
Pd
Power dissipation
Operation temperature
Storage temperature
1.7
o
Topr
Tstg
-20 ~ 75
-25 ~ 125
C
C
o
Page 7
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
MIC PRE-AMP CIRCUIT
MIC 1
20K
+12V
7
C
0.02 F
P
P
1 F
1K
5
6
P
10 F
+
-
560
P
15K
47K
47K
4.7K
4.7K
22 F
47K
OUTPUT
1K
MIC 2
20K
100pFs ~ 820pF
3
15K
C
0.02 F
P
1K
P
10 F
+
-
1
560
P
2
1 F
4
P
22 F
+12V
47K
4.7K
100pFs ~ 820pF
P
100 F
4.7K
Page 8
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
ECHO MODE APPLICATION CIRCUIT(MODIFIED)
3900pF
µ
4.7 F
15K
INPUT
100K
µ
4.7 F
10K
10K
+5V
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
µ
100 F
µ
0.1 F
560pF
4.7K
µ
47 F
µ
10 F
µ
10 F
5.6K
10K
50K
µ
0.01
F
OUTPUT
15K
560pF
10K
OSCR
3300pF
R
0.082 F
µ
10K
µ
0.1 F
µ
0.082 F
µ
0.1 F
Ω
1. Pin 6 R is approximate 1K~160k
.
2.
3.
Represent Analog Ground.
Represent Digital Ground.
V.1.0, 2000
NOV. 2000
Page 9
三合微科股份有限公司
ꢀꢀꢁꢁꢂꢃꢄꢂꢃꢄꢅꢆꢇꢈꢇꢄꢉꢅꢆꢊꢃꢄꢋꢌꢍꢆꢅꢎꢏ
SURROUND MODE APPLICATION CIRCUIT
INPUT
OUTPUT
100K
2.7K
4.7
F
P
5600pF
15K
10
F
P
15K
15K
10K
P
0.1 F
10K
15K
5600pF
P
0.1 F
560pF
560pF
16
15
12
14
13
13
12
11
16
10
17
19
18
SM7186
11
14
15
*10K
R
NC
P
P
0.1 F
0.1 F
P
47 F
100PF
0.1PF
+5V
0.1PF
20K
Page 10
©2020 ICPDF网 联系我们和版权申明