MX826 查看數據表（PDF） - Unspecified
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MX826 Datasheet PDF : 13 Pages
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AMPS/NAMPS System Audio Processor.
Application Information
MX826 Preliminary Information
C11
C12
VDD
X1
C9
XTAL
XTAL/CLOCK
SERIAL CLOCK
COMMAND DATA
CHIP SELECT
VBIAS
C4
RX AUDIO IN
EXPAND/STORE
C 8 (EXPANDED) AUDIO IN
TX MOD OUT
LS AUDIO OUT
EAR AUDIO OUT
SIDETONE OUT
VSS
1
28
2
27
3
26
4
25
5
24
6
23
7
8
MX826J
22
21
9
20
10
19
11
18
12
17
13
16
14
15
VDD
PLAY IN
C3
C10
MIC.1 IN C 1
MIC.2 IN C 2
COMPRESS
(COMPRESSED) AUDIO IN C 5
DTMF IN
C6
PRE-EMP OUT
DEV LIM IN
C7
C13
TX FILTER OUT
TX MIX IN
SAT OUT
C14
TX MIX
R1
R2
R3
Signaling and
Wideband Data
C16
C15
R4
R1 = 100kΩ
R2
as required
R3
100kΩ
R4
as required
C1
100nF
C2
100nF
C3 =
C4
C5
C6
C7
Tolerances – Capacitors ±20%
100nF
100nF
100nF
100nF
100nF
Figure 2 - Recommended External Components
C8 =
C9
C10
C11
C12
100nF
33pF
100nF
33pF
1.0µF
C13 = 100nF
C14
100nF
C15
100pF
C16
100nF
X1
4.000MHz
Notes
1. Xtal/clock operation
2.
Operation of any MX-COM IC without a Xtal or
clock input may cause device damage. To minimize
damage in the event of a Xtal/drive failure, you
should install a current limiting device (resistor or
fast-reaction fuse) on the power input (VDD).
3.
SAT Output
It is possible, due to the impedance of this output,
that an external buffer amplifier will be required
when interfacing or mixing with other cellular system
sections.
TX Mix Gain
The value of R4 should be chosen with R3/C15 in
order to provide the required gain.
© 1997 MX•COM Inc.
www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054
Doc. # 20480070.004
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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