参数资料
型号: U3900BM-AFNG3
英文描述: Programmable Telephone Audio Processor
中文描述: 程控电话音频处理器
文件页数: 27/34页
文件大小: 762K
代理商: U3900BM-AFNG3
U3900BM
Target Specification
Rev. A2, 25-Aug-98
33 (34)
Electrical Characteristics (continued)
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Fig.
FSK detection
Input signal power level 1)
On-HOOK mode
Pifon
–38
–1.5
dBm
Reject signal level (threshold) 2)
On-HOOK mode
Prjon
–44
dBm
Input signal level 3)
Off-HOOK mode
Pifoff
–38
–1.5
dBm
Reject signal level (threshold) 2)
Off-HOOK mode
Prjoff
–44
dBm
Transmission rate
(CCITT V23 & BELL 202)
Tr
1188
1200
1212
baud
Space frequency (CCITT V23)
SfV
2079
2100
2121
Mark frequency (CCITT V23)
MfV
1287
1300
1313
Space frequency (BELL 202)
SfB
1178
2200
2222
Mark frequency (BELL 202)
MfB
1188
1200
1212
Signal-to-noise ratio
200 – 340 baud
S/N fsk
20
dBm
1)
Referenced to a 600
W termination at the CPE Tip and Ring interface. Input signal at Pins CLI1 and CLI2.
2)
Signal lower than –43.8 dBm is rejected.
3)
Referenced to a 600
W termination at the CPE Tip and Ring interface. With a maximum gain in the RX chain.
Input signal at Pin VL.
15 Package Information
13040
technical drawings
according to DIN
specifications
Package SSO44
Dimensions in mm
0.25
0.10
0.3
0.8
18.05
17.80
16.8
2.35
9.15
8.65
7.50
7.30
10.50
10.20
0.25
44
23
1
22
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