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CMX608 数据表(PDF) 9 Page - CML Microcircuits

部件名 CMX608
功能描述  Integrated Input and Output Channel Filters
PDF  70 Pages
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制造商  CMLMICRO [CML Microcircuits]
网页  http://www.cmlmicro.com
标志 CMLMICRO - CML Microcircuits

CMX608 数据表(HTML) 9 Page - CML Microcircuits

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RALCWI Vocoder
CMX608/CMX618/CMX638
 2014 CML Microsystems Plc
9
D/608_18_38/11
4.
External Components
1
2
3
4
5
6
7
8
9
10
11
12
NC
Vss
Vss
48
47
46
45
44
43
42
41
40
39
38
37
25
26
27
28
29
30
31
32
33
NC
XTALSEL3
XTALSEL2
IOVDD
IOVDD
ENABXTAL
XTALSEL1
R1
C3
Vss
RESETN
XTAL out
XTAL in
Vss
XTAL
C1
C2
Vss
Vss
Vss
SYNC
13
14
15
16
17
18
19
20
21
22
24
23
VDD
C5
VDD
IOVDD
C6
Vss
Vss
Vss
Vss
Vss
IOVDD
CBUS
34
35
36
IOVDD
CMX608
IOVDD
Vss
C7
IOVDD
C4
Vss
Vss
Vss
D1
R2
IOVDD
NC
NC
IOVDD
Vss
Vss
NC
NC
IOVDD
IOVDD
CODEC PORT
Vss
C8
Vss
C9
Vss
C10
Vss
C11
Vss
C12
Vss
IOVDD
IOVDD
C1
22pF
C9
100nF
C2
22pF
C10
100nF
C3
1.0µF
C11
1.0µF
C4
100nF
C12
100nF
C5
1.0µF
C6
100nF
R1
470k
C7
100nF
R2
100k
C8
100nF
D1
small signal diode
Notes: 1.
On CMX608/CMX618/CMX638 devices, the crystal selection pins (XTALSEL1, XTALSEL2
and XTALSEL3) must be permanently tied to either IOVDD or VSS and not driven from a logic
level output of the host µController (see Table 1 for a list of crystal frequencies). For 9.6MHz
and 12.0MHz operation, either a crystal or a clock can be used. For all other frequencies, a
clock must be injected into the XTALIN pin and the XTALOUT pin must be left unconnected.
2.
To use the CMX608/CMX618/CMX638, tie the ENABXTAL pin to IOVDD. If the ENABXTAL pin
is connected to VSS it will force the device into a deep powersave mode, where the C-BUS
interface and clock input (XTALIN) are disabled and the crystal oscillator is powered down.
3.
A single 10µF electrolytic capacitor may be fitted in place of C5 and C11, providing the two
VDD pins are connected together on the pcb with an adequate width power supply trace.
Figure 2 CMX608 Recommended External Components



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