tc9470fn TOSHIBA Semiconductor CORPORATION, tc9470fn Datasheet
tc9470fn
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tc9470fn Summary of contents
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... TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic -û Modulation DA Converter with Built-in 8-Times Oversampling Digital Filter/Dynamic Digital Bass Boost/Analog Filter The TC9470FN is a second-order - modulation system -bit DA converter incorporating an 8-times oversampling digital filter, dynamic digital bass boost function for use with compressor operations and an analog filter developed for digital audio equipment ...
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... Oscillator circuit interface circuit Timing generator Digital filter circuit, + de-emphasis filter circuit, attenuator circuit -û modulator circuit Output Output circuit circuit Analog Analog filter filter GNDA VR GNDA TC9470FN XI GNDX MCK GNDD DA 2002-02-27 ...
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... I In parallel mode, dynamic bass boost control pin 2 22 DATA I Audio data input pin 23 BCK I Bit clock input pin 24 LRCK I LR clock input pin Function 3 TC9470FN Remarks XI XO Schmidt input Schmidt input Schmidt input Schmidt input Schmidt input Schmidt input 2002-02-27 ...
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... Figure 1 Crystal Oscillator Circuit Configuration (when in the 384 fs mode) The timing generator generates the clocks and process timing signals required for such functions as digital filtering and de-emphasis filtering. To internal circuit GNDX MCK DX 16.9344 MHz C X’tal TC9470FN 2002-02-27 ...
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... Frequency (kHz “H”) with the SHIFT (EMP) pin (pin 9 “L”) with a microcontroller or other equipment. (refer to 0 OFF 6 TC9470FN Attenuation í26dB or less 0.65dB 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 L 2002-02-27 ...
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... Z Figure 5 Filter Characteristics S = “L”) with a microcontroller or other equipment. (refer to 0.2 OUTPUT + SERIAL ATTENUATOR Coefficient length: 7 bits DBB max 18dB DBB MID 12dB DBB max í36dB DBB MID í24dB 7 TC9470FN µ “H”) with the DBB 2002-02-27 ...
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... DBB1 (pin 20) L DBB2 (pin 21) L MODE : DBB OFF MODE 2: DBB MID MODE 3: DBB max MODE 4: DBB max + HB EFS = “L” EFS = “H” 0 í70 í60 í50 í40 í30 í20 í10 Input level (dB) MODE 2 MODE TC9470FN MODE 2002-02-27 ...
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... Frequency (kHz) b) Vin = ï20dB input, DBB OFF, kHz = 0dB. Compressor characteristics MID: EFS = “L” (ï24dB) max: EFS = “H” (ï36dB) MAGA: EFS = “H” (ï36dB) 0 100 Frequency (kHz) 9 TC9470FN 1 10 100 OFF MID max + HB MEGA + 2002-02-27 ...
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... The output circuit is equipped with a third-order analog low-pass filter. This enables direct analog signals to be acquired from the IC’s RO (pin 5) and LO (pin 9) output pins. PDM signals Figure 11 Analog Filter Circuit Y (Z) Output data Q (bit-stream 1-bit DA conversion data) í í í í í (Z) 500 k Frequency (Hz) RO (LO TC9470FN 1 M 2002-02-27 ...
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... SM 19 EMP 20 DBB1 21 DBB2 Pin Description Soft mute control pin De-emphasis control pin Digital bass boost mode control pin 1 Digital bass boost mode control pin 2 11 TC9470FN Off 1 64 Approximately 23 ms pin = “H” setting mode) and 2002-02-27 ...
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... EFS: Dynamic circuit compression characteristics switch Š DOFF: Dynamic circuit ON/OFF switch Š DBB, DBB2: Digtal bass boost mode setting Š DBB3: DBB MEGA max setting BMUTE: Bass boost mute Š TCA: Attack time switch Š TCR: Recovery time switch 12 TC9470FN D09 D10 D11 D12 2002-02-27 ...
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... If an input level is set to ï48dB or less when it is set as the amount (ï72.245dB) of the maximum attenuation, the target effective attenuation data of digital attenuator of TC9470FN will be lost. The output data is set to “0” when an input level is set to ï48dB or less. An effective input level is decided by the following formula. Effective input data = ï ...
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... The amount of boost when the dynamic circuit is OFF is shown in table 5. Table 15 Amount of Boost when the Dynamic Circuit is OFF MID max H H (Note L-ch monaural output R-ch monaural output L H L-ch data when LRCK = “L” í24dB í36dB 12dB 18dB OFF Amount of Boost 10.6dB 15.2dB 14 TC9470FN 2002-02-27 ...
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... MODE 2 MODE 3 MODE DBB3 = “H” MODE ’: DBB OFF MODE 2’: DBB max MODE 3’: DBB MEGA max MODE 4’: DBB MEGA max + OFF 6 12 TC9470FN 2002-02-27 ...
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... • 2.4 V opr LRCK duty cycle = 50% LR Š f BCK duty cycle = 50% BCK t Š r LRCK, BCK pins (10% to 90%) t Š Š BCK edge : LRCK, DATA d 16 TC9470FN Min Typ. Max Unit 2.4 2.7 3.5 V 2.4 2.7 3.5 2.4 2.7 3.5 Š 4.0 5 × DD Š 0 × ...
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... A Weight OFF ON 10% 90 MCK GNDD GNDX GNDA DX LATCH VR (SM) 22 µF SHIFT GNDA (EMP) ATT RO (DBB1) (DBB2 DATA P/ S BCX T1 LRCK TC9470FN Distortion factor gauge 10% 90 2.7 V 220 L-ch Analog OUT 220 R-ch Analog OUT 2.7 V 2.7 V 2002-02-27 ...
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... Package Dimensions Weight: 0.14 g (typ.) 18 TC9470FN 2002-02-27 ...
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... TOSHIBA CORPORATION for any infringements of intellectual property or other rights of the third parties which may result from its use. No license is granted by implication or otherwise under any intellectual property or other rights of TOSHIBA CORPORATION or others. · The information contained herein is subject to change without notice. 19 TC9470FN 000707EBA 2002-02-27 ...
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