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| 型号： | EV6020 |
| 英文描述： | EvKit for FX602 |
| 中文描述： | 评估板的FX602 |
| 文件页数： | 3/13页 |
| 文件大小： | 929K |
| 代理商： | EV6020 |
Evaluation Kit User Manual for FX602
EV6020
1996 Consumer Microcircuits Limited
11
UM6020/4
1.6.1.10 DTMF Answerback Code
The DTMF answerback code may be selected by an appropriate choice of the four jumpers JP9.
Fitting a jumper sets that input to logic '0'. If not fitted, the input is pulled-up on-chip to logic '1'.
Alternatively, all of the JP9 jumpers may be omitted and the DTMF generator may be driven from a
C. A logic '1' on TX-DTMF (J1 pin 5) enables the generator and illuminates the LED.
DTMF GENERATOR DECODE TABLE
DTMF
J1:9 (D3)
J1:10 (D2)
J1:11 (D1)
J1:12 (D0)
CODE
0
D
0
1
0
1
0
2
0
1
3
0
1
0
4
0
1
0
1
5
0
1
0
6
0
1
7
1
0
8
1
0
1
9
1
0
1
0
1
0
1
0
#
1
0
1
A
1
0
B
1
C
1.6.1.11 Line Impedance Matching
Line impedance matching is provided by R20, which is not fitted. A resistor (value
≈ 600) is required
for the evaluation board to operate correctly.
1.6.1.12 Voice Mute
A mutable local voice input is provided on test point TP18. A logic '1' on /MUTE (J1 pin 20) unmutes
the voice input and illuminates the LED. Access to voice signals is provided as follows:
The hybrid receive output (Rx = remote voice) is located on test point TP16.
The hybrid transmit output (Tx = local voice) is located on test point TP15.
1.6.1.13 Evaluation Device FX602/FX604/FX614
If the evaluation device is an FX602 it should be fitted in socket U2 position 1 and jumper JP10 should
be fitted. If the evaluation device is an FX604 or FX614 it should be fitted in socket U2 position 2 and
jumper JP10 should be removed, thus disabling the parallel phone detector output. This output is still
available on test point TP17.
Figure 4 FX602 Configuration
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相关代理商/技术参数 |
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| EV6021 | 制造商:CMLMICRO 制造商全称:CML Microcircuits 功能描述:Evaluation Kit User Manual |
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| EV6090 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:EvKit for CMX639 |
| EV60-S1 | 制造商:Cooper Crouse-Hinds 功能描述: |
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