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| 型號(hào)： | 80-0206-R |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Speech Recognition Processor |
| 中文描述： | 語(yǔ)音識(shí)別處理器 |
| 文件頁(yè)數(shù)： | 7/49頁(yè) |
| 文件大?。?/td> | 527K |
| 代理商： | 80-0206-R |
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Data Sheet
RSC-4128
Reference Schematics
7
P/N 80-0206-R
2006 Sensory Inc.
Schematic 1-1:
RSC-4128, Utilizing On-chip ROM and Optional External Serial Data Memory
Vdd
D2
1N4148
Vdd
C22
1uF
D3
1N4148
AVDD
NOTE 5
LS1
SPEAKER
Vdd
D7
1N4148
C18
3300pF
NOTE1
NOTE2
Optional
Vdd
D6
1N4148
NOTE 7
AVDD
C17
.1
NOTE 4
P
Vdd
NOTE 7
C2
.1
C9.1
U1
AT45DB041B
1
2
3
4
5
6
7
8
SI
SCK
-CS
-WP
VCC
SO
Vdd
Vdd
Y1
3.58MHz
D5
1N4148
BT1
3V
C21
.1
C5
.1
C16
.1
NOTES:
1. Optional. This capacitor MAY reduce noise coupled into the mic input on a noisy
PCB.
2. If used, this capacitor MUST be placed close to the RSC-4128 AGND and MIC1IN pads.
3. Place close to MICIN1.
4. These capacitors may be used to reduce high frequency response. The tradeoff is
reduced amplitude.
5. For reducing system ESD susceptibility.
6. Typical value. Refer to Sensory Design Note 80-0259 "Selecting a Microphone" to
determine proper value for your application
7. SETTING RESISTOR AND CAPACITOR VALUES IN THE MICROPHONE POWER LINE FILTER CIRCUIT:
The capacitor value should be between 220 and 30 ufd.
The resistor value should be between 300 and 2000 ohms.
Within these ranges;
Select the largest capacitor consistent with other constraints (cost, size,etc.)
For this capacitor, select a resistor such that the RC time constant is ~60msec.
* Refer to Sensory Design Note 80-0073 "Speech Recognition Hardware Design" for
information on proper microphone selection and housing design, PCB layout, as well as
test and evaluation procedures to verify proper design and operation.
* Sensory offers a FREE Design Review Service. Detatils of this service are also
included in 80-0073.
Vdd FLASH
R1
100K
C4
.1
C6
.1
X1
MICROPHONE
C19
.01
C11
.1
NOTE 6
AVDD
C12
.1
C8
12pF
NOTE3
C20
220uF
C10
.1
Vdd
Vdd FLASH
R3
1.8K
C15
.1
R4
510
Vdd
C1
2.2uF
Recommended
D4
1N4148
C3
2.2uF
Optional
R2
270
C7
P1.4
U2
RSC-4128-die
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
3
3
3
3
3
3
3
3
3
3
4
4
4
4
4
4
4
4
4
4
5
5
5
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
8
8
8
8
8
8
8
8
9
9
9
9
9
9
9
9
9
9
1
P0.0
D7
D6
PDN
D5
D4
GND
XO1
XI1
Vdd
Vdd
-XM
XI2
D3
D2
P2.7
D1
D0
GND
GND
Vdd
Vdd
P2.6
P2.5
reserved
D
A
V
M
M
A
V
A
P
P
P
G
P
P
G
V
-
-
-
-
A
A
r
PLLEN
A17
P1.7
A16
P1.6
GND
GND
Vdd
Vdd
A15
P1.5
A14
P1.4
A13
P1.3
A12
P1.2
A11
P1.1
A10
GND
GND
Vdd
Vdd
A9
P1.0
A8
A7
P0.7
P
A
P
A
P
A
G
G
P
P
V
V
A
P
A
P
A
P
A
D1
1N4148
JP1
Recommended Diagnostic Output Port
1
2
3
4
C13
2.2uF
NOTE 5
C14
.1
Optional
P1.4
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