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TA1267AF 数据表(PDF) 5 Page - Toshiba Semiconductor |
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TA1267AF 数据表(HTML) 5 Page - Toshiba Semiconductor |
5 / 23 page TA1267AF 2003-02-06 5/23 PIN No. NAME FUNCTION INTERFACE CIRCUIT 13 6.5 MHz input / RF AGC delay adj. 6.5 MHz 2nd SIF input. And this terminal has RF AGC delay point adjustment function. 100 µA current is outputted from this terminal. Connect a resister (5.6 kΩ ) and a volume (10 kΩ ) between GND in series. 14 15 16 6.0 MHz input / AFT defeat 5.5 MHz input / system SW1 4.5 MHz input / system SW2 These terminals are input of 6.0 MHz 2nd SIF, 5.5 MHz 2nd SIF and 4.5 MHz 2nd SIF. No.14 terminal has AFT defeat function. If resister is connected between this terminal and GND, AFT defeat is active. No.15 and No.16 terminals have system switch function. The table of 'Condition of No.15 terminal and No.16 terminal' vs 'System' is on next page 17 AF output Gain of the audio amplifier is selected 0 dB or 6 dB by system switches. This system absorbs difference of the SIF's deviations (25 kHz or 50 kHz at 100% modulation). Output resistance of this terminal is selected 5 kΩ or 7.5 kΩ by system switches. So connect a capacitor between GND, the time-constant of the deemphasis is changed by system switches. 18 19 VCO tank Connect tank for VCO between these terminals. |
类似零件编号 - TA1267AF_03 |
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类似说明 - TA1267AF_03 |
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