參數(shù)資料
型號(hào): U3810BM
英文描述: Multi Standard Feature Phone Integrated Circuit
中文描述: 多標(biāo)準(zhǔn)功能手機(jī)集成電路
文件頁(yè)數(shù): 17/31頁(yè)
文件大?。?/td> 497K
代理商: U3810BM
TELEFUNKEN Semiconductors
U3810BM
Rev. A1: 19.01.1996
17 (31)
Table 1: Frequency tolerance of the output tones for DTMF signalling tone output frequency when using 455 kHz
Standard frequency
Hz
Tone output
frequency
Hz
Frequency deviation
%
Hz
Low Group
697
770
852
941
High Group
1209
1336
1477
1633
697.85
771.18
852.06
940.08
1210.1
1338.2
1477.3
1636.7
0.12
0.15
0.01
–0.10
0.09
0.17
0.02
0.22
+0.85
+1.18
+0.06
–0.92
+1.1
+2.2
+0.3
+3.7
Note: Frequency can be directly measured on CO when S3 is closed (figure 9)
AMF
1
0
0
0
SIN0
1
1
1
0
SIN1
1
1
0
1
CO
DTMF : HF
DTMF : LF
MELODY
CONFIDENCE TONE
1209
1
4
7
*
1336
2
5
8
0
1477
3
6
9
#
1633
A
B
C
D
697
770
852
941
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