cxa2571n Sony Electronics, cxa2571n Datasheet
cxa2571n
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cxa2571n Summary of contents
Page 1
... RF Matrix Amplifier Description The CXA2571N 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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... AVC RW/ROM A D Bottom Hold VC RW/ROM B C Bottom Hold VC APC-OFF (Hi-Z) SW RW/ROM (H/ APC AVC GND AVC CC – 2 – CXA2571N V CC 5.1k ACG BST Rfc Vfc <DSP> RFAC RFAC EQ RFDCI DV CC 5.1k RFDC RFDCO FEI DV CC 100k VOFST AVC ...
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... RFAC system VCA block low-frequency gain adjustment. 25 BST In EQ boost amount adjustment range. 26 VFC In EQ cut-off frequency adjustment. 27 RFC In EQ cut-off frequency adjustment Out VC voltage output. 29 RFDCO Out RFDC signal output. 30 RFDCI — RFDC amplifier virtual ground. Description . – 3 – CXA2571N ...
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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 – CXA2571N Description APC amplifier output. APC amplifier input. Equalizer circuit input. RFAC summing amplifier output. Ground. ...
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... CXA2571N Description RF summing amplifier and focus error amplifier input. Tracking error amplifier input. Tracking error amplifier output. CD-ROM/RW switching input. RW when connected ROM when connected to GND. Power supply. RFAC amplifier output. ...
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... 20k 25 VC 20k 26 VC 100 A – 6 – CXA2571N Description Focus error amplifier output. Focus error amplifier gain adjustment. The gain is adjusted by the external resistance value connected between this pin and Pin 18. Center error amplifier time constant adjustment. Center error amplifier non- inverted input ...
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... VC 124 124 30 – 7 – CXA2571N Description Input for adjusting the equalizer circuit boost frequency with external resistance GND)/2 voltage output. CC RFDC amplifier output. This pin serves as the eye pattern check point. RFDC amplifier gain adjustment. The gain is ...
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... Function SUM RFAC No. ment Measure- EQ RFAC – 8 – CXA2571N RFDC ...
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... Function RFDC No. ment Measure- FE – 9 – CXA2571N TE ...
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... CE Function No. ment Measure- APC AVC DVC – 10 – CXA2571N ...
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... 10k –1.9V 0.8mA 1.9V 10k 200k 10k S10 EE – 11 – CXA2571N 10k 10k 10k 100k 10k S11 20k 200k ...
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... OUT 20k 20k 20k 200k 10k – 12 – CXA2571N TE FE RFAC OUT OUT OUT DVC 100k 10k 20k 20k MODE Control RFAC OUT ...
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... If the load capacitance distorts the output waveform, increase the drive current. Connect resistance between Pin 16 and GND 5.1k 0.1 SUM BST VFC RFC EQ When BST = V CC Gain [dB –8 VC – 1 – 13 – CXA2571N Amp 16 RFAC . In this case only the EQ block CC VCA variable range Vcut [ ...
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... Vcut [V] VC – 1 56k 10k 55k 10k 56k 10k 1.25V – 14 – CXA2571N filter is adjusted by the Pin 27 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 26. Vcut [ 1.0 Pin 26 voltage 1 ...
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... DVC Buffer This outputs the 1/2 DV The maximum output current is approximately ±3mA. Use this voltage as the digital system DC voltage. The output DC voltage of each system is level shifted using the DVC voltage as the reference. 17 – 15 – CXA2571N 100k FEI 50k DVC RW: 32dB ...
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... ROM 8k The ( – signal is arithmetically amplified. Low-frequency gain ROM: 14dB RW: 26dB R (OFST) 5.1k 10k ROM RFDCI 30 RW 40k 1. 40k 40p VC 40p 40k V CC – 16 – CXA2571N RFDCO 29 CEP 200k 14 DVC CE 21 CEM 200k 22 CET 20k 13 ...
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... The AVC and DVC voltages are arithmetically amplified and output as the VOFST voltage. The VOFST voltage serves as the level shift reference VOFST voltage, and is distributed to each system. Active/Sleep RW/ROM APC_ON/OFF Active/Sleep RW/ROM Active RW Sleep — Active ROM – 17 – CXA2571N voltage ( less ...
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... When the limiter circuit operates, the maximum output voltage is limited to the DV However, when limiting the excessive voltage output, the ON/OFF operation of the limiter circuit causes the maximum output side (clipped portion of the output waveform) to oscillate slightly. 0.1 VCA EQI Example) AVcc = 5V, DVcc = 3V 3.0V 0V – 18 – CXA2571N EQ AMP voltage or less. CC ...
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... CXA2571N Vfc = VC Rfc = 5.1k Vboost = 1.0V Rfc = 5.1k Vboost = 0V Rfc = 100k Rfc = 5.1k Vboost = 1.0V Vboost = 1. 100 [MHz frequency response AC SUM EQ_Pass RW mode EQ_Pass ROM mode 1 10 100 [MHz] FE frequenxy response ...
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... ROM mode input, 1.0 ROM mode AD input, 0.5 RW mode 0 0 0.1 0.2 0.3 Input voltage [V] 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 10 0.05 2.5 2.0 = 5V Input signal amplitude = 100mVp-p 0.5 0.4 0.1 – 20 – CXA2571N APC I/O characteristics 3.0V CC 0.1 0.15 0.2 0.25 VPD – Input voltage [V] CE frequency response BC input AD input = 100 Input frequency [MHz] ...
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... This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). 30PIN SSOP (PLASTIC 0.65 0.15 0° to 10° PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT SSOP-30P-L01 LEAD MATERIAL SSOP030-P-0056 PACKAGE MASS – 21 – CXA2571N + 0.2 1.25 – 0.1 0.10 + 0.05 – 0.02 0.1 ± 0.1 DETAIL A EPOXY RESIN SOLDER/PALLADIUM PLATING 42/COPPER ALLOY 0.1g ...