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ST75C520 数据表(PDF) 42 Page - STMicroelectronics

部件名 ST75C520
功能描述  HIGH SPEED FAX MODEM DATA PUMP
PDF  45 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

ST75C520 数据表(HTML) 42 Page - STMicroelectronics

Back Button ST75C520 Datasheet HTML 37Page - STMicroelectronics ST75C520 Datasheet HTML 38Page - STMicroelectronics ST75C520 Datasheet HTML 39Page - STMicroelectronics ST75C520 Datasheet HTML 40Page - STMicroelectronics ST75C520 Datasheet HTML 41Page - STMicroelectronics ST75C520 Datasheet HTML 42Page - STMicroelectronics ST75C520 Datasheet HTML 43Page - STMicroelectronics ST75C520 Datasheet HTML 44Page - STMicroelectronics ST75C520 Datasheet HTML 45Page - STMicroelectronics  
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X - DEFAULT CALL PROGRESS TONE DETEC-
TORS
Figure 10 : Call Progress Tone Detector Band 1
Figure 11 : Call Progress Tone Detector Band 2
XI - DEFAULT ANSWER TONE DETECTORS
Figure 12 : 2100Hz Answer Tone Detector
Figure 13 : 2225Hz Answer Tone Detector
XII - ELECTRICAL SCHEMATICS
Oscillator
When using a third harmonic crystal oscillator in series resonance mode (RS <40
Ω,C0 = 6pF, Pe = 0.1mW),
we recommend the following schematic :
56
5 5
5p F
(opti onal)
33pF
10n F
29.4 912M Hz
1
µH
EX TA L
X TA L
ST75C520
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