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CXA2509AQ Dataheets PDF



Part Number CXA2509AQ
Manufacturers Sony Corporation
Logo Sony Corporation
Description Playback Equalizer Amplifier with Music Sensor
Datasheet CXA2509AQ DatasheetCXA2509AQ Datasheet (PDF)

CXA2509AQ Playback Equalizer Amplifier with Music Sensor Description The CXA2509AQ is an IC designed for use in car stereo cassette decks. Functions include playback equalizer amplifier and music sensor into a single chip. Features • Few external parts • Small package (40-pin QFP) • Same pin configuration as for the Dolby B-C type NR system (CXA2511AQ) and Dolby B type NR system (CXA2510AQ) • Playback equalizer amplifier and music sensor into a single chip • FORWARD/REVERSE head select switch • .

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CXA2509AQ Playback Equalizer Amplifier with Music Sensor Description The CXA2509AQ is an IC designed for use in car stereo cassette decks. Functions include playback equalizer amplifier and music sensor into a single chip. Features • Few external parts • Small package (40-pin QFP) • Same pin configuration as for the Dolby B-C type NR system (CXA2511AQ) and Dolby B type NR system (CXA2510AQ) • Playback equalizer amplifier and music sensor into a single chip • FORWARD/REVERSE head select switch • Two-system (TAPE/AUX) input select switch • Music signal interval detection level can be set by the external resistors/capacitors (2 modes). • High-frequency cut-off of the music sensor circuit can be adjusted by the external capacitance. Applications • Car stereo cassette decks • Playback-only cassette decks 40 pin QFP (Plastic) Structure Bipolar silicon monolithic IC Absolute Maximum Ratings • Supply voltage VCC • Operating temperature Topr • Storage temperature Tstg • Power dissipation PD Operating Condition Supply voltage 12 –40 to +85 –65 to +150 430 V °C °C mW VCC 7.8 to 11 V Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits. –1– E96826-PS CXA2509AQ Block Diagram and Pin Configuration PBEQ2 AUXIN2 LINEOUT2 PBOUT2 TAPEIN2 DIREF 30 PBFB2 31 PBRIN2 32 29 28 27 26 25 24 23 24dB NC 22 21 20 MSMODE 19 DRSW 120µ/70µ ×1 PBREF2 33 F2 PBFIN2 34 VCT 35 VCT PBGND 36 PBFIN1 37 F1 PBREF1 38 PBRIN1 39 PBFB1 40 1 2 120µ/70µ 3 4 ×1 T2 NR BIAS TAPE/AUX TAPE EQ MS MODE 18 TAPESW 17 INSW 16 NC FWD/RVS VCC LPF DET F3 T1 12 MSTC 11 G1FB 9 10 15 NC MS ON/ OFF 14 MSOUT 13 DGND 24dB 5 6 7 8 TAPEIN1 PBOUT1 LINEOUT1 AUXIN1 PBEQ1 VCC NC –2– MSLPF G2FB NC MSSW GND NC CXA2509AQ Pin Description Pin No. Symbol Typical pin voltage DC AC I/O I/O resistance (Ta = 25°C, VCC = 8.0V, DVCC = 5.0V) Equivalent circuit Description Vcc 40k 1 30 PBEQ1 PBEQ2 1k 4.0V — O — 5k 1 30 1k Resistance for selecting the playback equalizer amplifier time constant GND Vcc 2 29 PBOUT1 PBOUT2 200 4.0V –25dBm O — 2 29 200 Playback equalizer amplifier output GND 3 VCC 8.0V — — — Vcc Power supply 4 27 TAPEIN1 TAPEIN2 4.0V –30dBm I 40kΩ 4 27 5 40k 147 20p TAPE input 5 26 AUXIN1 AUXIN2 26 VGS GND External input Vcc 100k 6 MSLPF 4.0V — — 100kΩ 6 147 64p GND Cut-off frequency adjustment of the music sensor LPF –3– CXA2509AQ Pin No. Symbol Typical pin voltage DC AC I/O I/O resistance Equivalent circuit Description Vcc 7 24 LINEOUT1 LINEOUT2 4.0V –6dBm O — 147 7 24 200 200 Line output 22.5k GND Vcc 10 11 G2FB G1FB 500 4.0V — — — 147 10 11 500 Music signal interval detection level setting GND Vcc 12 MSTC — — — — 147 12 853 10k DGND GND Time constant for detecting the music signal interval 13 DGND 0.0V — — — Logic ground (Connect to GND.) Vcc 14 MSOUT 0.2V when a signal is detected; DVcc when no signal is detected DVcc 100k — O — 14 Music sensor output DGND GND –4– CXA2509AQ Pin No. Symbol Typical pin voltage DC AC I/O I/O resistance Equivalent circuit Description Line amplifier input select control Low (open): TAPEIN High: AUXIN Playback equalizer amplifier control Low (open): 120µs High: 70µs DGND 17 INSW Vcc 18 TAPESW 0.0V when open 17 1.1k 100k — I 100kΩ 18 19 19 DRSW GND Head select control Low (open): FORWARD High: REVERSE Vcc 20 MSMODE 0.0V when open — I 100kΩ 1.1k 20 100k DGND GND Music sensor mode control Low (open): G1 High : G2 Vcc 21 MSSW 0.0V when open — I 100kΩ 1.1k 21 100k DGND GND Music sensor control Low (open): MS ON High: MS OFF –5– CXA2509AQ Pin No. Symbol Typical pin voltage DC AC I/O I/O resistance Equivalent circuit Description Vcc 25 DIREF 1.2V — — — 147 25 Resistance for setting the reference current (Connects 20 (18) kΩ between DIREF pin and GND for the standard setting.) GND 28 GND 0.0V — — — Ground Playback equalizer amplifier feedback 31 40 PBFB2 PBFB1 4.0V –70dBm I — Vcc 32 39 PBRIN2 PBRIN1 4.0V –70dBm I — 32 39 34 36 PBREF PBREF GND 50p 50p 31 40 Playback equalizer amplifier input (REVERSE head connected) 34 37 PBFIN2 PBFIN1 Playback equalizer amplifier input (FORWARD head connected) Vcc 33 38 PBREF2 PBREF1 200 4.0V — O — 33 38 200 Playback equalizer amplifier reference (VCC/2 output) GND –6– CXA2509AQ Pin No. Symbol Typical pin voltage DC AC I/O I/O resistance Equivalent circuit Vcc 30k 147 Description 35 VCT 4.0V — O — 35 45k ×1 VGS Center (VCC/2 output) 30k GND 36 PBGND 0.0V — — — Playback equalizer amplifier ground (Connect to ground.) 8 9 .


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