DTMFDECODER-RD Silicon Laboratories Inc, DTMFDECODER-RD Datasheet - Page 138

• Manufacturer Part Number: DTMFDECODER-RD
• Description: KIT REF DESIGN DTMF DECODER
• Manufacturer: Silicon Laboratories Inc

Specifications of DTMFDECODER-RD

• Mfg Application Notes: DTMF Decoder Ref Design AppNote
• Main Purpose: Telecom, DTMF Decoder
• Embedded: No
• Utilized Ic / Part: C8051F300
• Primary Attributes: 8kHz Sampling Rate ADC
• Secondary Attributes: 16 Goertzel Filters
• Processor To Be Evaluated: C8051F300
• Interface Type: RS-232
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 336-1283

C8051F300/1/2/3/4/5
138
Notes:
Table 14.1. Timer Settings for Standard Baud Rates Using The Internal 24.5 MHz
Notes:
Table 14.2. Timer Settings for Standard Baud Rates Using an External 25 MHz
1. SCA1-SCA0 and T1M bit definitions can be found in
2. X = Don’t care.
1. SCA1–SCA0 and T1M bit definitions can be found in
2. X = Don’t care
Baud Rate
Baud Rate
230400
115200
230400
115200
Target
Target
57600
28800
14400
57600
28800
14400
57600
28800
14400
(bps)
(bps)
2400
1200
9600
9600
2400
1200
9600
Baud Rate
Baud Rate
% Error
% Error
–0.47%
–0.01%
–0.01%
–0.01%
–0.47%
–0.47%
–0.32%
–0.32%
–0.32%
–0.32%
–0.32%
0.45%
0.45%
0.15%
0.45%
0.45%
0.15%
0.15%
0.15%
0.15%
Oscillator
Oscillator
Divide
Factor
10464
20832
Divide
Factor
10176
20448
1736
2608
1744
2608
1704
2544
108
218
434
872
432
864
106
212
426
848
Frequency: 25.0 MHz
Frequency: 24.5 MHz
Oscillator
Oscillator
Rev. 2.9
SYSCLK / 48
SYSCLK / 48
Timer Clock
SYSCLK / 4
SYSCLK / 4
SYSCLK / 12
SYSCLK / 12
SYSCLK / 48
SYSCLK / 48
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
EXTCLK / 8
Timer Clock
SYSCLK / 4
SYSCLK
SYSCLK
SYSCLK
Source
SYSCLK
SYSCLK
SYSCLK
Source
Section 15.1
Section 15.1
SCA1–SCA0
SCA1–SCA0
.
(pre-scale
.
(pre-scale
select)
select)
XX
XX
XX
XX
XX
XX
01
01
10
10
11
11
11
11
11
01
00
00
10
10
2
2
2
2
2
2
1
1
T1M
T1M
1
1
1
0
0
0
0
0
0
0
0
0
1
1
1
0
0
0
0
0
1
1
Value (hex)
Value (hex)
Timer 1
Reload
Timer 1
Reload
0xCA
0xCA
0x5D
0xE5
0x5D
0x93
0x27
0x93
0x27
0x93
0x27
0x93
0xCB
0x2B
0xB9
0x2B
0x96
0x96
0x96
0x96