cxa1746q Sony Electronics, cxa1746q Datasheet
cxa1746q
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cxa1746q Summary of contents
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... Electronic Volume For the availability of this product, please contact the sales office. Description The CXA1746Q is a 2-channel electronic volume IC. A 34-bit serial data input controls the level and characteristics of the output signal. It may be used in car stereos and general audio systems. Features • ...
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... TONE V OLUME V OLUME V CTBUFF V CTBUFF V CTBUFF LA TCH ZCDET SHIFT REGISTER V CTBUFF V CTBUFF V CTBUFF V OLUME V OLUME TONE 8dB STEP 1dB STEP —2— CXA1746Q FNTO 24 FA DER 23 REO1 CE 22 CLK 21 20 DGND LA TCH GND 19 CONTROL VCT 16 ...
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... VCT Equivalent Circuit GND GND GND GND GND —3— CXA1746Q Description Sets loudness low cut-off frequency. Set loudness high cut-off frequency Input selector output Volume input Set tone Treble frequency ...
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... VCT Equivalent Circuit GND GND GND GND GND —4— CXA1746Q Description Sets tone Mid frequency Sets tone Mid frequency Sets tone Bass frequency Sets tone Bass frequency Tone control output ...
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... REO1 VCT 14 FNT02 — 23 FNT01 VCT ~ 15 TIMER — DATA — Equivalent Circuit GND GND GND GND GND —5— CXA1746Q Description Fader input Rear output Front output Sets timer constant Serial data input ...
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... Equivalent Circuit GND GND GND GND —6— CXA1746Q Description 1 Power supply input Ground Digital ground Serial clock input Latch enable input External gain setting for input amplifier Signal input ...
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... D11 VRF1 D12 D13 D14 VRC2 D15 D16 D17 D18 VRF2 D19 D20 D21 TONE BASS D22 D23 D24 D25 TONE MID D26 D27 D28 D29 TONE TREBLE D30 D31 D32 D33 FADER D34 D35 D36 FADER SELECT —7— CXA1746Q ...
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... D7/D14 D8/D15 D9/D16 —8— CXA1746Q ...
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... BASS/MID/TREBLE OUTPUT (dB) D20/D24/D28 BOOST/CUT MODE D23/D27/D31 BOOST CUT D11/D18 D12/D19 D21/D25/D29 D22/D26/D30 —9— CXA1746Q ...
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... REAR D33 D34 D35 D36 – dB –7 dB – dB –7 dB OFF —10— CXA1746Q ...
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... the maximum value for the timer operation time) T tce = 6 to 12V, operating temperature = –40°C to 85°C) CC Typ. Max. 5µs 9µs 50µs 90µs 500µs 900µs 5ms 9ms 50ms 90ms 500ms 900ms —11— CXA1746Q D36 Invalid t2 tL ...
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... Conditions Min. No signal 1 kHz, 5 dBm output Short-circuit at input, A weight 1 kHz 1 kHz 100 Hz, VRC=– kHz, VRC=–16dB DATA, CLK, CE DATA, CLK, CE IN11 to 14 IN21 to 24 VRIN1, 2 FDIN1, 2 —12— CXA1746Q Typ. Max. Unit — — 0.003 0.01 % — µVrms 8 — ...
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... CXA1746Q ...
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... CXA1746Q ...
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... R2=8.92k 4 LDHC2 C2 20k 32 VRIN1 5 VRIN2 CXA1746Q Gain=1 GAIN134 GAIN12 37 VCT 38 GAIN11 33 CXA1746Q IN14 IN13 IN12 Input amp of channel 1 IN11 and f can be set by selecting fL=1/(2 C1R1) fH=1/(2 C2R2) 25.7k R1=6.18k VCT 3 LDLC1 5 LDLC2 C1 VCT —15— CXA1746Q INA01 and ...
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... MID: BPF 29 TCMC12 8 TCMC22 TREBLE: HPF CXA1746Q fL=1/(2 C1R1//R2) 8k R2=8k 8k VCT VCT 27 TCLC12 TCLC22 18 C1 VCT fL=1/(2 C2R3) fH=1/(2 C3R4) HPF 16k LPF 4k R3=4k VCT 16k 4k R4=8k CXA1746Q 38 TCMC11 7 TCMC21 C2 C3 VCT VCT f =1/(2 C4R5) H 10k 10k VCT fH 10k 10k R5=5k 3 TCHC11 1 TCHC21 C4 VCT —16— CXA1746Q ...
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... By so doing, the 'pop' noise caused by the drop in these pins potential from V CC Time constant=(0.5/10µ) C [sec 10µA 0.5V CE CXA1746Q 15 TIMER 100k VCT 17 100k CXA1746Q GND /2 during power-off can be avoided. —17— CXA1746Q goes below 5V ...
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... Examole if Reoresentative Characteristics 20 10 BASS 0 –10 – –10 –20 – Tone Control Frequency Characteristics MID 100 1k FREQUENCY (Hz) Loudness Frequency Characteristics 100 1k FREQUENCY (Hz) —18— CXA1746Q 15 dB TREBLE –15 dB 10k 100k VRC=0 dB VRC=–8 dB VRC=–16 dB VRC=–24 dB 10k 100k ...
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... SONY CODE EIAJ CODE JEDEC CODE 48PIN QFP (PLASTIC 0.15 0.3 – 0.1 0. 0.35 2.2 – 0.15 PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT QFP-48P-L04 LEAD MATERIAL QFP048-P-1212 PACKAGE MASS —19— CXA1746Q + 0.1 0.15 – 0.05 0.15 + 0.2 0.1 – 0.1 EPOXY RESIN SOLDER / PALLADIUM PLATING 42/COPPER ALLOY 0.7g ...