CMX602BD4 MX-COM, Inc., CMX602BD4 Datasheet - Page 5

• Manufacturer Part Number: CMX602BD4
• Description: Calling line identifier plus call waiting
• Manufacturer: MX-COM, Inc.

Calling Line Identifier plus Call Waiting (Type II)
3. External Components
Note: It is recommended that the printed circuit board provide a ground plane in the CMX602B area to
provide a low impedance ground connection to the V
Recommended External Component Notes:
1. See Section 4.8
2. See Section 4.2
3. The recommended values of R8 were selected for applications in both Bellcore and British Telecom
4. For best results, a crystal oscillator design should drive the clock inverter input with signal levels of at
5. It is recommended that the printed circuit board be laid out with a ground plane in the CMX602B area to
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2000 MX-COM, Inc
Figure 2 : Recommended External Components for Bellcore and/or British Telecom Application
Systems. Optimum Bellcore-only operation may be achieved by reducing the value of R8 e.g. to 656k
@ 5.0V.
least 40% of V
crystal oscillator design assistance, consult your crystal manufacturer.
provide a low impedance ground connection to the V
Line
R1
R2
R3, R4
R5, R6
R7
R8
R9
R10
A
B
Protection
Network
Note 2, 3
Line
DD
Note 1
Note 2
, peak to peak. Tuning fork crystals generally cannot meet this requirement. To obtain
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C3
C4
470k @ 3.3V
680k @ 5.0V
240k @ 3.3V
200k @ 5.0V
C6
C7
Table 2: Recommended External Components
R3
R4
D1-D4
470k
470k
160k
R6
R7
R1
R2
R9
V
1%
1%
1%
1%
1%
1%
DD
C1
C5
R5
SS
5
C2
R10
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pin and to the bypass capacitors C8 and C9.
AMPOUT
R8
SS
X1
pin and to decoupling capacitors C8 and C9.
R11
C1, C2
C3, C4
C5
C6, C7
C8,C9
X1
D1 - D4
XTAL
XTAL
V
IN-
IN+
RD
RT
SS
2
3
4
5
6
7
8
1
CMX602B
Note 4
CMX602B PRELIMINARY INFORMATION
16
15
14
13
12
10
3.579545MHz
11
9
1N4004
0.33 F
100k
680pF
0.1 F
0.1 F
18pF
V
RXD
RXCLK
DET
IRQ
ZP
MODE
V
DD
BIAS
R11
Doc. # 20480204.002
C9
C8
V
0.1%
20%
20%
20%
20%
20%
20%
DD