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參數(shù)資料
| 型號(hào)： | PCD3349A |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontroller with DTMF generator(帶DTMF發(fā)生器的8位微控制器) |
| 中文描述： | 8位微控制器的DTMF發(fā)生器（帶雙音多頻發(fā)生器的8位微控制器） |
| 文件頁(yè)數(shù)： | 8/20頁(yè) |
| 文件大小： | 141K |
| 代理商： | PCD3349A |
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1998 May 11
8
Philips Semiconductors
Product specification
8-bit microcontroller with DTMF generator
PCD3349A
6.4
Modem frequencies
Again assuming an oscillator frequency f
xtal
= 3.58 MHz,
the standard modem frequency pairs summarized in
Table 5 can be implemented. It is suggested to define the
frequency by the HGF register while the LGF register
contains 00H, disabling Low Group Frequency generation.
Table 5
Standard modem frequency pairs and their
implementation
Notes
1.
2.
3.
4.
Standard is V.21.
Standard is Bell 103.
Standard is Bell 202.
Standard is V.23.
6.5
Musical scale frequencies
Finally, two octaves of musical scale in steps of semitones
can be realized, again assuming an oscillator frequency
f
xtal
= 3.58 MHz (Table 6). It is suggested to define the
frequency by the HGF register while the LGF contains
00H, disabling Low Group Frequency generation.
HGF
VALU
E
(HEX)
FREQUENCY (Hz)
DEVIATION
MODEM
GENERATED
(%)
(Hz)
9D
82
8F
79
80
45
76
48
5C
52
4B
44
980
(1)
1180
(1)
1070
(2)
1270
(2)
1200
(3)
2200
(3)
1300
(4)
2100
(4)
1650
(1)
1850
(1)
2025
(2)
2225
(2)
978.82
1179.03
1073.33
1265.30
1197.17
2192.01
1296.94
2103.14
1655.66
1852.77
2021.20
2223.32
0.12
0.08
0.31
0.37
0.24
0.36
0.24
0.15
0.34
0.15
0.19
0.08
1.18
0.97
3.33
4.70
2.83
7.99
3.06
3.14
5.66
2.77
3.80
1.68
Table 6
Musical scale frequencies and their
implementation
Note
1.
Standard scale based on A4 at 440 Hz.
NOTE
HGF
VALUE
(HEX)
FREQUENCY (Hz)
STANDARD
(1)
GENERATED
D#5
E5
F5
F#5
G5
G#5
A5
A#5
B5
C6
C#6
D6
D#6
E6
F6
F#6
G6
G#6
A6
A#6
B6
C7
C#7
D7
D#7
F8
EA
DD
D0
C5
B9
AF
A5
9C
93
8A
82
7B
74
6D
67
61
5C
56
51
4D
48
44
40
3D
622.3
659.3
698.5
740.0
784.0
830.6
880.0
923.3
987.8
1046.5
1108.7
1174.7
1244.5
1318.5
1396.9
1480.0
1568.0
1661.2
1760.0
1864.7
1975.5
2093.0
2217.5
2349.3
2489.0
622.5
659.5
697.9
741.1
782.1
832.3
879.3
931.9
985.0
1044.5
1111.7
1179.0
1245.1
1318.9
1402.1
1482.2
1572.0
1655.7
1768.5
1875.1
1970.0
2103.3
2223.3
2358.1
2470.4
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| PCD3349AP | 8-bit microcontroller with DTMF generator |
| PCD3350AH | 8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCD3349AP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-BIT MICROCONTROLLER WITH DTMF GENERATOR |
| PCD3349AT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-BIT MICROCONTROLLER WITH DTMF GENERATOR |
| PCD3350A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| PCD3350AH | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontroller with DTMF generator, 256 bytes EEPROM and real-time clock |
| PCD3351A | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:8-bit microcontrollers with DTMF generator and 128 bytes EEPROM |
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