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Part Name
Description
MC14LC5540DW View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
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MC14LC5540DW
ADPCM Codec
Motorola => Freescale
MC14LC5540DW Datasheet PDF : 18 Pages
First
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18
10 k
Ω
10 k
Ω
TG
TI –
TI +
0.1
µ
F
VAG
RO
20 k
Ω
+5 V
R0 = 600
Ω
TIP
N=1
150
Ω
N = 0.5
NC
NC
0.1
µ
F
0.1
µ
F
3 k
Ω
AXO –
AXO +
VDSP
VEXT
PI
PO –
PO +
PDI/RESET
RING
SCPEN
1
•
28
2
27
3
26
4
25
5
24
6
23
7
22
8
21
9
20
10
19
11
18
12
17
13
16
14
15
MC14LC5540
VDD
FSR
BCLKR
DR
C1 +
NC
C1 –
NC
VSS
SPC
DT
BCLKT
FST
SCP Rx
SCP Tx
SCPCLK
+5 V
0.1
µ
F
ADPCM IN
20.48 MHz
ADPCM OUT
2.048 MHz
8 kHz
TO MICROCONTROLLER
SERIAL PERIPHERAL
INTERFACE PORT AND
RESET CIRCUIT
Figure 12. MC14LC5540 Step–Up 1:0.5 Transformer Application
10 k
Ω
TG
10 k
Ω
TI –
TI +
0.1
µ
F
VAG
SPEAKER
150
Ω
RO
AXO –
20 k
Ω
+5 V
RO = 600
Ω
TIP
N=1
600
Ω
N=1
0.1
µ
F
0.1
µ
F
20 k
Ω
AXO +
VDSP
VEXT
PI
PO –
PO +
PDI/RESET
RING
SCPEN
1
•
28
VDD
2
27
FSR
3
26
BCLKR
4
25
DR
5
24
C1 +
NC
6
23
C1 –
NC
7
22
VSS
8
21
SPC
9
20
DT
10
19
BCLKT
11
18
FST
12
17
SCP Rx
13
16
SCP Tx
14
15
SCPCLK
MC14LC5540
+5 V
0.1
µ
F
ADPCM IN
20.736 MHz
ADPCM OUT
2.048 MHz
8 kHz
TO MICROCONTROLLER
SERIAL PERIPHERAL
INTERFACE PORT AND
RESET CIRCUIT
Figure 13. MC14LC5540 1:1 Transformer Application
MOTOROLA
MC14LC5540
17
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