CXA2570 Sony Corporation, CXA2570 Datasheet
CXA2570
Related parts for CXA2570
CXA2570 Summary of contents
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... RF Matrix Amplifier Description The CXA2570N developed for the RF signal processing of compact disc players. Features • Wide band RF signal processing • RF system VCA circuit • RF system equalizer (supports CAV mode) • Supports pickups with built-in RF summing amplifier • Low power consumption mode (EQ Pass mode) • ...
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... RW/ROM RW/ROM RW/ROM RW/ROM VC 10k 10k PD APC RW/ROM VC LD APC-OFF (Hi-Z) SW RW/ROM (H/L) VC – 2 – CXA2570N V CC 5.1k BST Rfc Vfc <DSP> RFAC EQ RFAC RFDCI 5.1k RFDC RFDCO FEI 100k GND V CC 5.1k BST Rfc Vfc < ...
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... RFAC system VCA block low-frequency gain adjustment. 19 BST In EQ boost amount adjustment range. 20 VFC In EQ cut-off frequency adjustment. 21 RFC In EQ cut-off frequency adjustment Out VC voltage output. 23 RFDCO Out RFDC signal output. 24 RFDCI — RFDC amplifier virtual ground – 3 – Description CXA2570N ...
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... Pin Symbol I/O No EQ_IN I 4 AC_SUM O 5 GND — Equivalent circuit 10k 1 1k 55k 20k 2 20k 1.1k 1. 1.6k 1.6k 4 — – 4 – CXA2570N Description APC amplifier output. APC amplifier input. Equalizer circuit input. RFAC summing amplifier output. Ground. ...
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... VC 124 15 – 5 – CXA2570N Description RF summing amplifier and focus error amplifier input. 47k Tracking error amplifier input. 16 Tracking error amplifier output. CD-ROM/RW switching input. RW when connected to V ROM when connected to GND. RFAC amplifier output. ...
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... VC 124 124 24 – 6 – CXA2570N Description Power supply. Sets the RFAC low-frequency gain. Input for adjusting the equalizer circuit boost amount. Input for adjusting the equalizer circuit boost frequency with the control voltage. Input for adjusting the ...
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... Function SUM RFAC No. ment Measure- EQ RFAC – 7 – CXA2570N RFDC ...
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... Function FE No. ment Measure- TE – 8 – CXA2570N APC VC ...
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... Electrical Characteristics Measurement Circuit 10k 5. 0.8mA 0 1.9V S12 5. 10k –1. – 9 – CC 10k 10k 10k 100k 10k 10k S11 S8 S9 S10 CXA2570N ...
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... A B 0.1 – 10 – RFAC V CC OUT OUT OUT 100k 10k 10k C D MODE Control RFAC V CC OUT OUT OUT 100k 10k 10k C D MODE Control E F CXA2570N ...
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... If the load capacitance distorts the output waveform, increase the drive current. Connect resistance between Pin 13 and GND 5.1k SUM BST VFC RFC EQ When BST = V Gain [dB –8 VC – 1 – 11 – 0.1 Amp 13 RFAC this case only the EQ block CC VCA variable range Vcut [ CXA2570N ...
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... V CC 56k 2 10k 55k 10k 56k 10k 1.25V – 12 – filter is adjusted by the Pin 21 external resistance value. The VFC voltage can be varied using this fo as the reference. fo can be changed by the voltage applied to Pin 20. VC – 1 1.0 Pin 20 voltage CXA2570N Vcut [V] ...
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... VC R (ofst) ROM RW FEI 50k 200k 50k ROM 50k 30k RW 200k ROM: 16dB RW: 28dB ROM: 400kHz RW: 300kHz 373k TE = Gain (F – E) ROM Low-frequency gain (typ 40k 40k – 13 – 100k ROM: 20dB RW: 32dB ROM: 1MHz RW: 250kHz CXA2570N ...
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... In the function block, BGR and MODE_SW are always set to active mode. Item Control voltage Hi-Z GND 10k ROM RFDCI RW 40k 1.5k VC ROM: 20dB RW: 32dB ROM: 12MHz RW: 5MHz RW/ROM, Active/Sleep, APC_ON/OFF APC Active/Sleep RW/ROM ON Active OFF Sleep ON Active – 14 – 5. RFDCO VC RW — ROM CXA2570N ...
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... Proposed stabilization measures The board and other loop characteristics can be changed by adding external capacitance as noted below. This has a particularly large effect on the stabilization when using RFSUM. RF SUM ACSUM 0.1 VCA EQI Add capacitance of 10pF to 20pF. – 15 – CXA2570N EQ AMP ...
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... Rfc = 100k Vfc = VC Rfc = 5.1k Vboost = 1.0V Vboost = 1.0V Rfc = 5.1k Rfc = 100k Vboost = 0V Vboost = 0V Rfc = 100k Rfc = 5.1k Vboost = –1.0V Vboost = –1. [MHz frequency response AC SUM EQ_Pass RW mode EQ_Pass ROM mode 1 10 [MHz] FE frequency response RW ROM 0.1 1 [MHz] CXA2570N 100 100 10 ...
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... TE frequency response ROM 0.01 0.1 1 [MHz] APC I/O characteristics 5.5 5.0 4.5 4 3.5 3.0 2.5 2.0 1.5 1.0 0.5 10 0.05 0.1 VPD – Input voltage [V] – 17 – CXA2570N = 5. 3.0V CC 0.15 0.2 0.25 ...
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... This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). 24PIN SSOP(PLASTIC) 7.8 ± 0 0.13 M 0.65 0.1 ± 0.1 0° to 10° PACKAGE STRUCTURE PACKAGE MATERIAL SSOP-24P-L01 LEAD TREATMENT LEAD MATERIAL SSOP024-P-0056 PACKAGE MASS – 18 – + 0.2 1.25 – 0.1 0 0.05 0.15 – 0.02 DETAIL A EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.1g CXA2570N ...