cxa2647n Sony Electronics, cxa2647n Datasheet
cxa2647n
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cxa2647n Summary of contents
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... RF Signal Processor for CD Players Description The CXA2647N signal processing IC for compact disc players. Features • RF signal processor supporting 6 speed CD • RF system VCA circuit • RF system equalizer • Supports pickups with built-in RF summing amplifier • Low current consumption mode (RF off mode) • ...
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... VCA EQ ROM/ RW ROM VOFST ROM/ RW DVC ROM VOFST ROM/ RW DVC ROM VOFST ROM ROM DVC VC VOFST – 2 – CXA2647N DC_OFST 29 RFDCI 28 RFDC 21 CEI FEI TE_BAL DVC 14 ...
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... RFAC system VCA block low frequency gain adjustment. 24 BST I EQ boost level adjustment. 25 VFC I EQ cut-off frequency adjustment. 26 RFC I EQ cut-off frequency adjustment voltage output. 28 RFDC O RFDC signal output. 29 RFDCI I RFDC amplifier virtual ground. 30 DC_OFST I RFDC signal output offset adjustment. Description . – 3 – CXA2647N ...
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... Equivalent circuit 600 A 100 A 10k 55k 20k 2 20k 3 1. 400 A 400 A 3. 400 A 400 A 500 A — – 4 – CXA2647N Description APC amplifier output. APC amplifier input. Equalizer circuit input. RFAC summing amplifier output. GND. ...
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... A VC 200k 200k 12 200k VC — 100 14 100 25 – 5 – CXA2647N Description RFAC summing amplifier, RFDC amplifier, focus error amplifier and center error amplifier input. Tracking error amplifier input. CD-ROM/SLEEP/CD-RW switching input. ROM when connected to GND, RW when connected SLEEP mode when connected to DVC or Hi-Z ...
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... A VC 124 20 VC 124 50 A 500 A 21 – 6 – CXA2647N Description RFAC amplifier output. Focus error amplifier output. Focus error amplifier gain adjustment. The gain is adjusted by the external resistance value connected between this pin and Pin 16. Tracking error amplifier output. ...
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... A 19k 25 VC 100 1.5V 124 100 27 100 25 – 7 – CXA2647N Description Input for setting the RFAC low frequency gain with the control voltage. Input for adjusting the equalizer circuit boost level with the control voltage. Input for adjusting the ...
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... VC 15k 10k 100 A 400 A – 8 – CXA2647N Description RFDC amplifier output. RFDC amplifier gain adjustment. The gain is adjusted by the external resistance value connected between this pin and Pin 28. Input for adjusting RFDC amplifier offset with the control ...
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... If the load capacitance distorts the output waveform, connect resistance between the RFAC pin and GND to increase the drive current 100k BST VFC RFC Amp EQ RFAC OFF when BST = the RFAC function is turned off and the low consumption mode is CC Gain [dB –8 VC – 1 – 9 – CXA2647N 15 RFAC VCA variable range Vcnt [ ...
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... Freq. Boost fc gain 0.5fc RFC pin external resistor value 100k : fc = 1.6MHz V CC 56k 10k 55k 56k 10k 10k 1.25V – 10 – CXA2647N 2 79.517fc (17.085fc 79.517fc (17.085fc 79.517fc 2 99.963fc (12.412fc 99.963fc filter is adjusted by the Pin 26 external resistance value. ...
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... RW 251k RW 251k 10k 20k 20k 10k 31.5k 125.5k ROM RW VC 20k Resistance value [ ] – 11 – CXA2647N 100k 16 FE 124 DVC TE = Gain (F – E) Low frequency gain ROM: 16dB RW: 28dB TE balance adjustment (F – E) low frequency gain = ±6dB 18 TE Cut-off frequency fc (typ.) ROM: 200kHz RW: 150kHz ...
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... DVC voltage as the reference. 14 DVC VC Control bias VC – 24k 96k 15k 10k RFDCI 29 ROM 15k 124 RW 15k 40k 2k 15k 2.4k VC 3.3k Cut-off frequency fc (typ.) ROM : 15MHz 28.5dB RW : 6MHz – 12 – CXA2647N ) voltage 40k 25 40k 5.1k 28 RFDC 124 ...
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... ROM/RW The VC buffer is always in active mode even if it enters sleep mode. Active RW In the function block, MODE SW is always set to active mode. Sleep — Active ROM – 13 – CXA2647N 200k 20 CE 124 124 DVC ROM: 200kHz RW: 200kHz voltage ( less in CC ...
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... SUM RFAC – 14 – CXA2647N EQ RFAC ...
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... RFDC – 15 – CXA2647N FE ...
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... TE – 16 – CXA2647N CE ...
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... APC AVC DVC – 17 – CXA2647N ...
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... S10 S11 0.1 OUT – 18 – CXA2647N 10k 10k 100k 10k E19 10k DV DVC CC S12-1 DVC S12 OUT OUT ...
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... ROM/ VOFST RW DVC ROM VOFST ROM DVC VOFST DVC or Hi-Z VC Sleep, APC off APC – 19 – CXA2647N <CXA2647N> <DSP> RFAC V CC DC_OFST 30 RFDCI 29 RFDC 28 RFDC CEI FEI TE_BAL 19 ROM/ ...
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... RFG = VC – mode Pin 26 RFC = 100k 0 Pin 25 VFC = VC Pin 24 BST = VC Pin 23 RFG = control –5 10M 100M 1k 10k – 20 – CXA2647N ROM mode Pin 26 RFC = 100k/33k Pin 25 VFC = control Pin 24 BST = VC Pin 23 RFG = VC RFC = 33k VFC = VC VFC = 10M 100M [Hz] 100k ...
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... TE characteristics Input: Pin 10 E Output: Pin ROM 10M 1k 10k – 21 – CXA2647N Feed back registor 5.1k between Pin 28 & 10M 100M [Hz] Input (Pin 10 & 11) registor 200k Pin 19 TE_BAL = VC 100k 1M 10M [Hz] ...
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... Input: Pin Output: Pin Feed back registor 200k between Pin 20 & ROM 10k 100k [Hz] 3. APC input/output characteristics Input: Pin 2 PD Output: Pin 1 LD 3.5 3.0 2.5 2.0 1.5 1.0 0 10M 0 0.05 – 22 – CXA2647N 3.0V CC 0.1 0.15 0.2 Input PD [V] ...
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... P-SSOP30-5.6x9.7-0.65 JEDEC CODE 30PIN SSOP (PLASTIC) 0 0.65 b=0.22 0.1 0.1 DETAIL B : PALLADIUM NOTE: Dimension " " does not include mold protrusion. PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT SSOP-30P-L01 LEAD MATERIAL PACKAGE MASS – 23 – CXA2647N + 0.2 1.25 – 0.1 0.10 0.03 EPOXY RESIN PALLADIUM PLATING COPPER ALLOY 0.1g Sony Corporation ...