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HM91710B Datasheet(PDF) 7 Page - ELAN Microelectronics Corp |
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HM91710B Datasheet(HTML) 7 Page - ELAN Microelectronics Corp |
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7 / 19 page  7 HM91710A/B HM91710A/B HM91710A/B HM91710A/B HM91710A/B TONE/PULES SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER TONE/PULES SWITCHABLE DIALER * This specification are subject to be changed without notice. 1.7.2002 TEST CIRCUIT TEST CIRCUIT TEST CIRCUIT TEST CIRCUIT TEST CIRCUIT 1 1 1 1 1 3 3 3 3 3 Operation current Tone output voltage 5 5 5 5 5 2 2 2 2 2 4 4 4 4 4 Standby current Tone distortion 6 6 6 6 6 ** Ã(V1)**2+(V2)**2+..+(Vn)**2 DIST.(dB)= 20log Ã(VL)**2+(VH)**2 a. V1....Vn are extraneous frequencies (ie, inter modulation and harmonic) components in the 500Hz to 3400Hz band. b. VL,VH are the individual frequency components of the DTMF signal c. Whether keyboard is pushed refer to the TONE mode time diagram A VSS VDD V+ HKS V+ KEY BOARD MODE A HKS V DD V SS DP DP DT V SS VDD V+ HKS TONE 10K KEYBOARD ENTRY . COUNTER AND AC METER VSS VDD V+ 10K SPECTRUM ANALYZER V KEYBOARD ENTRY HKS TONE A V HKS Flash Key VSS VDD V+ VEXT PO Pulse output sink current( open drain structure) A V V V C MODE R * * SS DD HKS ROW + Keypad input 7 7 7 7 7 Isink=I/(1-Duty Cycle) I is the net DC current measured from ampere meter. A HKS V V SS MODE V DD R C * * + Column R* , C* mean others column and row. |
Similar Part No. - HM91710B |
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Similar Description - HM91710B |
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