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参数资料
| 型号： | MC14LC5540DW |
| 厂商： | MOTOROLA INC |
| 元件分类： | 编解码器 |
| 英文描述： | Regulating Pulse-Width Modulators 16-SO 0 to 70 |
| 中文描述： | A/MU-LAW, ADPCM CODEC, PDSO28 |
| 封装： | SOG-28 |
| 文件页数： | 17/18页 |
| 文件大小： | 189K |
| 代理商： | MC14LC5540DW |
MC14LC5540
MOTOROLA
17
NC
NC
R0 = 600
0.1
μ
F
RING
TIP
N = 1
N = 0.5
10 k
+5 V
NC
NC
20 k
TO MICROCONTROLLER
SERIAL PERIPHERAL
INTERFACE PORT AND
RESET CIRCUIT
8 kHz
2.048 MHz
20.48 MHz
ADPCM OUT
ADPCM IN
3 k
10 k
+5 V
C1+
C1–
SPC
SCP Rx
SCPCLK
SCP Tx
BCLKT
DT
FST
BCLKR
DR
FSR
VDD
VSS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PDI/RESET
AXO+
AXO–
SCPEN
PI
PO–
PO+
TG
TI–
TI+
RO
VAG
VDSP
VEXT
14
13
12
11
10
8
7
6
5
4
3
2
1
9
MC14LC5540
0.1
μ
F
0.1
μ
F
0.1
μ
F
150
Figure 12. MC14LC5540 Step–Up 1:0.5 Transformer Application
0.1
μ
F
RING
TIP
N = 1
N = 1
10 k
+5 V
NC
NC
20 k
TO MICROCONTROLLER
SERIAL PERIPHERAL
INTERFACE PORT AND
RESET CIRCUIT
8 kHz
2.048 MHz
20.736 MHz
ADPCM OUT
ADPCM IN
20 k
150
SPEAKER
10 k
+5 V
C1+
C1–
SPC
SCP Rx
SCPCLK
SCP Tx
BCLKT
DT
FST
BCLKR
DR
FSR
VDD
VSS
28
27
26
25
24
23
22
21
20
19
18
17
16
15
PDI/RESET
AXO+
AXO–
SCPEN
PI
PO–
PO+
TG
TI–
TI+
RO
VAG
VDSP
VEXT
14
13
12
11
10
8
7
6
5
4
3
2
1
9
MC14LC5540
0.1
μ
F
600
0.1
μ
F
0.1
μ
F
RO = 600
Figure 13. MC14LC5540 1:1 Transformer Application
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