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TDA1306T データシート(PDF) 7 Page - NXP Semiconductors |
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TDA1306T データシート(HTML) 7 Page - NXP Semiconductors |
7 / 24 page 1998 Jan 06 7 Philips Semiconductors Product specification Noise shaping filter DAC TDA1306T Table 2 Pseudo-static application mode PIN MNEMONIC PIN NUMBER TDA1305T FUNCTION VALUE DESCRIPTION APP0 17 ATSB 0 12 dB attenuation (from full scale) activated (only if MUSB = logic 1) 1 full scale (only if MUSB = logic 1) APP1 16 DSMB 0 double-speed mode 1 normal-speed mode APP2 15 MUSB 0 samples decrease to mute level 1 level according to ATSB APP3 13 DEEM1 0 de-emphasis OFF (44.1 kHz) 1 de-emphasis ON (44.1 kHz) MICROCONTROLLER APPLICATION MODE (APPL = LOGIC 1 AND APP3 = LOGIC 0) In this mode, the device operation is controlled by a set of flags in an 8-bit mode control register. The 8-bit mode control register is written by a microcontroller interface where: APPL = logic 1 APP0 = Data APP1 = Clock APP2 = RAB APP3 = logic 0. The correspondence between serial-to-parallel conversion, mode control flags and a summary of the effect of the control flags is given in Table 3. Figures 3 and 4 illustrate the mode set timing. MICROCONTROLLER WRITE OPERATION SEQUENCE The microcontroller write operation follows the following sequence: • APP2 is held LOW by the microcontroller • Microcontroller data is clocked into the internal shift register on the LOW-to-HIGH transition on pin APP1 • Data D7 to D0 is latched into the appropriate control register on the LOW-to-HIGH transition of pin APP2 (APP1 = HIGH) • If more data is clocked into the TDA1306T before the LOW-to-HIGH transition on pin APP2 then only the last 8 bits are used • If less data is clocked into the TDA1306T unpredictable operation will result • If the LOW-to-HIGH transition of pin APP2 occurs when APP1 = LOW, the command will be disregarded. Fig.3 Microcontroller timing. |
同様の部品番号 - TDA1306T |
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同様の説明 - TDA1306T |
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