CXA2509

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 15 16 22 23 NC — — — — No connected –7– CXA2509AQ Electrical Characteristics Item Operating voltage Current consumption Symbol Vopr ICC No signal, TAPE, 120µs, MS ON Measurement conditions (Ta = 25°C, VCC = 8.0V, DVCC = 5.0V) Min. 7.8 5.3 Typ. 8.0 7.8 Max. 11.0 10.3 Unit V mA Line Amplifier (0dB = Line amplifier reference output level LINEOUT of –6dBm) TAPEIN input sensitivity AUXIN input sensitivity Total harmonic distortion S/N ratio Signal handling Crosstalk between channels 1 Crosstalk between channels 2 Crosstalk between TAPE and AUX Output DC offset voltage VTIN VAUX THD1 SN1 SH1 CT1 CT2 CT3 VOS1 TAPEIN 1kHz, LINEOUT 0dB AUXIN 1kHz, LINEOUT 0dB TAPEIN 1kHz –20dBm, RL = 2.7kΩ No signal, Rg = 5.1kΩ, CCIR/ARM filter used TAPEIN 1kHz, RL = 2.7kΩ, THD = 1% TAPEIN 1kHz –24dBm, 1kHz BPF used AUXIN 1kHz –24dBm, 1kHz BPF used TAPE (AUX) IN 1kHz –24dBm, AUX (TAPE) mode, 1kHz BPF used∗1 No signal, NR OFF, difference from VCT –32.0 –30.0 –28.0 dBm –32.0 –30.0 –28.0 dBm — 74.0 13.0 — — — –0.1 0.01 79.4 14.4 0.2 — — % dB dB dB dB dB V –86.0 –70.0 –86.0 –70.0 –67.0 –65.0 0.0 0.1 Playback Equalizer Amplifier Playback equalizer amplifier PBREF reference output level Playback equalizer amplifier F120 frequency response 1 Playback equalizer amplifier F70 frequency response 2 Signal handling Total harmonic distortion S/N ratio Output DC offset voltage Crosstalk between channels SH2 THD2 SN2 VOS2 CT4 PBIN 315Hz –70dBm, 120µs mode PBIN 2.7kHz –58.5dBm, 120µs mode at 315Hz PBIN 4.5kHz –53.8dBm, 70µs mode at 315Hz PBIN 1kHz, 120µs mode, RL = 2.7kΩ, THD = 1% PBIN 1kHz –52dBm, 120µs mode, RL = 2.7kΩ No signal, 70µs mode, Rg = 680Ω, CCIR/ARM filter used No signal, 120µs mode, Rg = 680Ω, difference from VCT PBIN 1kHz –52dBm, 120µs mode, 1kHz BPF used PBIN 1kHz –52dBm, 120µs mode, 1kHz BPF used –27.0 –25.0 –23.0 dBm –1.5 –1.5 –10.0 — 59.0 –1.0 — — 0.0 0.0 –3.0 0.07 64.5 0.0 1.5 1.5 — 0.5 — 1.0 dB dB dBm % dB V dB dB –81.0 –70.0 –80.0 –70.0 Crosstalk between CT5 FORWARD and REVERSE –8– CXA2509AQ Item Music Sensor Signal detection level 1 Signal detection level 2 MS output leak current MS output saturation voltage Logic Voltage Low level High level Symbol Measurement conditions Min. Typ. Max. Unit VMS1 VMS2 IOH VOL TAPEIN 5kHz, MS ON, G1 mode, external constant of 39kΩ and 0.0047µF TAPEIN 5kHz, MS ON, G2 mode, external constant of 3.9kΩ and 0.47µF No signal, MS OFF, G1 mode TAPEIN 5kHz –30dBm, MS ON, G1 mode, 1mA applied to MSOUT pin –43.0 –40.0 –63.0 –60.0 — — 0.0 0.3 –37.0 dBm –57.0 dBm 1.0 1.0 µA V VIL VIH Input voltage of INSW, TAPESW, DRSW, MSMODE, MSSW Input voltage of INSW, TAPESW, DRSW, MSMODE, MSSW 0.0 2.5 — — 0.5 DVCC V V ∗1 The crosstalk between TAPE and AUX is measured with a 5.1kΩ external resistor connected to AUXIN1 (Pin 5). In this condition, the crosstalk is approximately –67dB due to the signal leak from MSLPF (Pin 6). In order to improve the crosstalk between TAPE and AUX, AUXIN1 pin should be driven with a low impedance. –9– CXA2509AQ Electrical Characteristics Measurement Circuit R35 10k R34 100 R33 10k R32 100 R31 10k S23 S22 S21 S20 S19 DC Voltmeter S8 S6 ∗R14 2.7k ∗ R10 ∗ R12 12k 18k Audio SG ∗R4 300k C7 0.01µ C5 2.2µ ∗ R3 270 31 PBFB2 30 29 R16 5.1k S10 S13 R18 5.1k C9 2.2µ 28 C12 1µ ∗ ∗ C14 ∗R19 1µ 20k 26 25 ∗ C17 2.2µ 24 R21 2.7k 0dB or 30dB Amp ∗ R36 50k MSSW H/L 23 22 21 S24 OFF: 0dB ON: 30dB 27 GND GND MSMODE H/L DRSW H/L TAPESW H/L INSW H/L DIN Audio S27 “A” WTG S28 LINEOUT2 AUXIN2 GND NC PBEQ2 TAPEIN2 PBOUT2 MSSW DIREF NC MSMODE 20 DRSW 19 TAPESW 18 INSW 17 NC 16 S29 S4 S3 Power Supply VCC C4 ∗R8 2.2µ 680 32 PBRIN2 ∗R9 680 33 PBREF2 34 PBFIN2 35 VCT C3 22µ 36 PBGND S2 GND C2 2.2µ ∗R7 680 S1 C1 2.2µ ∗R2 270 ∗ R6 680 37 PBFIN1 38 PBREF1 39 PBRIN1 1kHz BPF NC 15 R24 100k MSOUT 14 DGND 13 C20 0.1µ MSTC 12 DVCC R30 10k S18 CCIR/ARM S25 +20dB S26 +20dB TAPEIN1 PBOUT1 PBEQ1 AUXIN1 MSLPF DC Ammeter A LINEOUT1 40 PBFB1 C6 0.01µ G1FB 11 ∗ R1 300k ∗ R5 12k ∗ R11 18k 1 C8 2.2µ 2 3 C11 1µ 4 C13 1µ 5 6 7 C15 C16 270p 2.2µ NC 8 9 10 ∗ R22 3.9k C18 0.47µ ∗ R23 39k C19 4.7n G2FB R25 1MEG AC Voltmeter VCC NC Distortion Analyzer ∗R17 5.1k S8∗R15 5.1k ∗ R13 2.7k C10 22µ R20 2.7k Oscilloscope S11 S5 S7 S12 R29 10k R28 100 R27 10k R26 100 Note S17 S16 S15 S14 ±5% ∗: ±1% ±5% ∗: ±2% ±10% 1. Resistor tolerance 2. Capacitor tolerance Coupling Capacitor – 10 – CXA2509AQ Application Circuit 1 GND R12 R14 300k 33k C7 0.01µ R9 18k R11 12k C10 2.2µ AUXIN2 LINEOUT2 GND C12 2.2µ R15 20k C15 2.2µ C17 0.1µ PBOUT2 TAPEIN2 PBEQ2 AUXIN2 LINEOUT2 DIREF 30 PBFB2 C4 470p RVS2 R6 180 R4 100k PBRIN2 PBREF2 PBFIN2 C3 R3 470p 100k GND C5 22µ GND C2 R2 470p 100k FWD1 PBREF1 R1 100k C1 470p R5 180 PBRIN1 PBFB1 VCT PBGND PBFIN1 31 32 29 28 27 26 NC 25 24 23 22 24dB 120µ/70µ MSSW 21 20 19 MSMODE DRSW TAPESW INSW NC NC R19 MSOUT 100k DGND MSTC G1FB C18 0.1µ GND R18 1MEG DVCC To Microcomputer DGND From Microcomputer GND ×1 33 F2 34 35 VCT 36 37 F1 38 39 40 1 2 ×1 T2 NR BIAS TAPE/AUX TAPE EQ NC MS MODE 18 17 16 FWD/RVS VCC LPF DET F3 15 MS ON/ OFF 14 13 12 11 9 10 FWD2 T1 RVS1 120µ/70µ 3 4 5 6 7 8 24dB LINEOUT1 AUXIN1 PBEQ1 VCC NC TAPEIN1 PBOUT1 MSLPF G2FB R16 3.9k C16 0.47µ GND NC R8 18k C6 0.01µ R17 39k C17 4.7n GND R10 12k C9 2.2µ C11 C13 C14 2.2µ 0.001µ 2.2µ GND LINEOUT1 R7 R13 300k 33k VCC C8 22µ GND AUXIN1 Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. – 11 – CXA2509AQ Application Circuit 2 AUXIN2 R12 300k C7 0.01µ R9 18k R11 12k GND LINEOUT2 GND C10 2.2µ C12 2.2µ R13 20k C15 2.2µ PBOUT2 TAPEIN2 PBEQ2 AUXIN2 LINEOUT2 DIREF 30 PBFB2 C1 470p RVS2 R5 500 PBRIN2 31 32 29 28 27 26 NC 25 24 23 22 MSSW 21 20 19 MSMODE DRSW TAPESW INSW NC NC R17 MSOUT 100k DGND MSTC G1FB C18 0.1µ GND R16 1MEG DVCC To Microcomputer DGND From Microcomputer GND 24dB 120µ/70µ R1 100k PBREF2 R2 100k C2 470p GND GND C3 470p C5 22µ PBFIN2 VCT PBGND PBFIN1 R3 100k PBREF1 ×1 33 F2 34 35 VCT 36 37 F1 38 39 40 1 2 120µ/70µ 3 4 ×1 T2 NR BIAS TAPE/AUX TAPE EQ NC MS MODE 18 17 16 FWD/RVS VCC LPF F3 DET 15 MS ON/ OFF 14 13 12 11 9 10 FWD2 FWD1 RVS1 R4 100k PBRIN1 C4 470p R6 500 PBFB1 T1 24dB 5 6 7 8 LINEOUT1 AUXIN1 PBEQ1 VCC NC TAPEIN1 PBOUT1 MSLPF G2FB R14 3.9k C16 0.47µ GND NC R8 18k C6 0.01µ R15 39k C17 4.7n GND R10 12k R7 300k C9 2.2µ C11 C13 C14 2.2µ 0.001µ 2.2µ GND LINEOUT1 VCC C8 22µ GND AUXIN1 Application circuits shown are typical examples illustrating the operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits or for any infringement of third party patent and other right due to same. – 12 – CXA2509AQ Description of Operation 1. Signal route 24dB PB IN FWD AMP1 70µs TAPE AUX 24dB RVS AMP2 PBFB PBEQ PBOUT TAPEIN AUXIN (–30dBm) LINEOUT (–6dBm line amplifier reference output level) Fig. 1. Signal route block diagram AMP1 and AMP2 are operational amplifiers. AMP1 composes the playback equalizer amplifier by attaching an external resistor and capacitor to PBFB, PBEQ and PBOUT pins. AMP2 is an input selector and a line amplifier. The gain is 24dB. The line amplifier reference output level is –6dBm. – 13 – CXA2509AQ 2. Adjustment method 0 –10 –20 –30 –40 PBOUT –50 –60 –70 –80 (dBm) PBIN (HEAD) 400Hz 200nWb/m: Dolby level reference tape VR adjustment TAPEIN AUXIN –30dBm –30dBm –6dBm (Dolby level) LINEOUT Fig. 2-1. Level diagram (application circuit 1) 0 –10 –20 –30 –40 TAPEIN –50 –60 –70 –80 (dBm) PBIN (HEAD) 400Hz 200nWb/m: Dolby level reference tape AUXIN PBOUT VR adjustment –30dBm –30dBm –6dBm (Dolby level) LINEOUT Fig. 2-2. Level diagram (application circuit 2) As an example of the playback equalizer gain adjustment method, the reference tape for Dolby level adjustment is playd back in order to obtain –6dBm output on LINEOUT (Pins 7 and 24). The same output level as for ICs with the built-in Dolby NR system(CXA2510AQ and CXA2511AQ) can be obtained. List of Calibration Cassette Tape Dolby level is defined as 200nWb/m measured according to the ANSI high efficiency head method. The followings are the reference tapes specified by Dolby Laboratories Licensing Corporation. 1. A-bex Laboratories, Inc. (part no. TCC-130) 2. BASF (product code 09797 XE) 3. Kaneon Corp. (LC Engineering part no. LCT-7001) 4. Standard Tape Laboratory (catalogue no. 28) 5. TEAC Corporation, Japan (part no. MTT150) 6. TEAC Corporation of America (part no. MTT150) 7. Victor Company of Japan, Ltd. (part no. TMT-6130, VTT-727) 8. Sony Corporation (part no. TY-256) – 14 – CXA2509AQ 3. Playback equalizer amplifier Gain (dB) G1 T1 PB IN FWD SW1 AMP1 SW2 70µs –6dB/oct RVS T2 PBFB C1 R1 PBREF PBEQ R4 R3 R2 PBOUT T3 f1 f2 f3 Frequency (Hz) Fig. 3. Playback equalizer amplifier block diagram Fig. 4. Playback equalizer amplifier frequency response The CXA2509AQ achieves the frequency response of Fig.4 with the circuit configuration shown in Fig. 3. Two systems (FORWARD and REVERSE) of playback head input are provided for each channel. The FORWARD input pin is selected when DRSW (Pin 19) is Low; REVERSE is selected when DRSW is High. The playback equalizer amplifier frequency response can be set in two levels. When TAPESW (Pin 18) is Low, SW2 shown in Fig. 3 is turned OFF; when TAPESW is High, SW2 is turned ON. The external resistance R1 should be adjusted to adjust the playback equalizer amplifier gain. The playback equalizer amplifier frequency response is all determined by the external resistance and capacitance, and it can be obtained with the following equation. G (s) = 1 + {s · C1 · (R1 · R2 + R2 · Rx + Rx · R1) / (R1 + R2)} R1 + R2 · (s = jω) 1 + s · C1 · (R2 + Rx) R1 Where, Rx = R3 when TAPESW pin = Low; Rx = R3//R4 when TAPESW pin = High Using the above equation, G1 in Fig. 3 and low-frequency time constant (T1) and high-frequency time constants (T2 and T3) are as follows: G1 = 20log R1 + R2 R1 T1 = C1 · (R2 + Rx) T2, T3 = C1 · (R1 · R2 + R2 · Rx + Rx · R1) R1 + R2 – 15 – CXA2509AQ 4. Music sensor TAPEIN2 MSLPF Vcc ×1 R3 127k R2 10k AMP1 R1 10k R4 100k VGS ×1 DGND DGND AMP2 R5 39.1k R6 1k R7 11.1k C1 64p Vcc R11 DVcc Full-wave rectifier Smoother AMP3 MSOUT DGND TAPEIN1 G1FB C2 R8 G2FB C3 R9 MSTC R10 C4 Fig. 5. Music sensor block diagram The signal input from TAPEIN is added and amplified by AMP1. This signal is then input to the LPF (R4 and C1). The LPF cut-off frequency can be adjusted by connecting the external capacitance to MSLPF pin. The cut-off frequency is approximately 23kHz when MSLPF pin is left open. The detection level and HPF cut-off frequency are determined with the external resistance and capacitance connected to G1FB or G2FB at AMP2, and the signal is converted to a current. The signal is full-wave rectified and is converted to a voltage by the internal resistance R5. The full-wave rectified signal is smoothed. The internal resistance (R6) and external capacitance (C4) determine the smoothing response time. The recovery time is determined by the external resistance (R10) and capacitance (C4). The AMP3 comparator detects whether the smoothed signal is greater or smaller than the comparator threshold. The comparator has approximately 2dB hysteresis. The table below shows the example of the constant and characteristics for the external resistance and capacitance connected to G1FB and G2FB. R FF/REW (G1) Playback (G2) C Music signal detection level –39.5dBm –59.5dBm Music signal interval detection level –41.4dBm –61.4dBm Cut-off frequency 870Hz 87Hz 39kΩ 0.0047µF 3.9kΩ 0.47µF Detection level (dBm) –39.5 –59.5 G1 (FF) G2 (NOR) 87 870 Frequency (Hz) Fig. 6. Music sensor circuit frequency response – 16 – CXA2509AQ 5. Operating mode control method The CXA2509AQ has a playback equalizer amplifier select switch (TAPESW), head input select switch (DRSW), music sensor mode select switch (MSMODE) and music sensor switch (MSSW). The operating modes for each switch are shown in the following table. Pin No. 17 18 19 20 21 INSW TAPESW DRSW MSMODE MSSW Pin name Low (OPEN) TAPE 120µs PBIN FORWARD G1 MS ON Pin voltage High AUX 70µs PBIN REVERSE G2 MS OFF Notes on Operation 1. Playback equalizer amplifier All playback equalizer amplifier characteristics are determined by the external constants. Use the parts which satisfies the accuracy required for the playback equalizer amplifier. 2. Music sensor The current on DIREF (Pin 25), and the resistance and capacitance connected to G2FB (Pin 10) and G1FB (Pin 11) determine the detection level and the HPF cut-off frequency. The response time is determined by the resistance and capacitance connected to MSTC (Pin 12). Use the parts which satisfies the accuracy required for the music sensor. – 17 – CXA2509AQ Example of Representative Characteristics Current consumption vs. Supply voltage Ta = 25°C Current consumption [mA] 8.0 7.5 No input signal MS ON 7.0 7.0 8.0 9.0 10.0 11.0 Supply voltage [V] Playback equalizer amplifier frequency response 60 Ta = 25°C 47µ 680 70µs PBFIN1 Gain [dB] 50 PBFB1 PBREF PBEQ1 0.01µ 18k 12k 270 300k 2.2µ PBOUT1 40 120µs 30 VCC = 8.0V Output level of –25dBm constant 100 1k Frequency [Hz] 70µs 10k PBREF Fig. 7. Measurement circuit of playback equalizer amplifier frequency response Line amplifier frequency response Ta = 25°C 30 Gain [dB] 20 VCC = 8.0V Input: TAPE IN1 AUX IN1 Output: LINE OUT1 100 1K Frequency [Hz] 10K 10 – 18 – CXA2509AQ Total harmonic distortion (playback equalizer amplifier) VCC = 8.0V Input: PBFIN1 Output: PBOUT1 RL = 2.7kΩ Ta = 25°C Total harmonic distortion (line amplifier) VCC = 8.0V Input: TAPEIN1 Output: LINEOUT1 RL = 2.7kΩ 0dB = –6dBm Ta = 25°C 100 100 Total harmonic distortion [%] 10–1 Total harmonic distortion [%] 10–1 f = 10kHz 10–2 f = 100Hz f = 1kHz –20 –16 –12 –8 –4 0 4 8 f = 10kHz 10–2 f = 100Hz f = 1kHz Output level [dBm] –10 –6 –2 2 6 10 14 Output level [dB] Ripple rejection ratio (PBOUT) VCC = 8.0V RL = 2.7kΩ Ta = 25°C –20 Ripple rejection ratio (LINEOUT) VCC = 8.0V RL = 2.7kΩ Ta = 25°C Ripple rejection ratio [dB] Ripple rejection ratio [dB] 1k Frequency [Hz] 10k –40 –30 –50 –40 –60 100 –50 100 1k Frequency [Hz] 10k – 19 – CXA2509AQ Crosstalk between channels (1ch → 2ch) 0 –20 VCC = 8.0V Input: PBFIN1 Output: LINEOUT2 (constant LINEOUT level) PBFIN1 47µ 680 PBOUT1 24dB Crosstalk [dB] –40 –60 –80 –100 –120 PBEQ1 PBREF 12k 300k 270 2.2µ TAPEIN1 LINEOUT1 100 1k Frequency [Hz] 10k PBREF Fig. 8. Measurement circuit of crosstalk between channels Music signal and signal interval detection level frequency response 0 –10 Ta = 25°C VCC = 8.0V Input: TAPEIN1 G1: R = 39kΩ, C = 4.7nF G2: R = 3.9kΩ, C = 0.47µF Music signal detection level –30 –40 –50 –60 Music signal interval detection level 100 1k Frequency [Hz] 10k Music signal interval detection level Music signal detection level G2 G1 Input level [dBm] –20 HPF connection resistance in MS block vs. Music signal and signal interval detection level characteristics VCC = 8.0V f = 5kHz Input: TAPEIN1 Ta = 25°C –30 Input level [dBm] –40 Music signal detection level Music signal interval detection level –50 –60 –70 1k 10k HPF connection resistance [Ω] 100k – 20 – CXA2509AQ Package Outline Unit: mm 40PIN QFP (PLASTIC) 9.0 ± 0.4 + 0.4 7.0 – 0.1 30 21 + 0.35 1.5 – 0.15 + 0.1 0.127 – 0.05 0.1 31 20 A 40 1 0.65 + 0.15 0.3 – 0.1 + 0.15 0.1 – 0.1 11 10 ± 0.12 M 0.5 ± 0.2 (8.0) PACKAGE STRUCTURE PACKAGE MATERIAL LEAD TREATMENT LEAD MATERIAL PACKAGE MASS EPOXY RESIN SOLDER / PALLADIUM PLATING 42/COPPER ALLOY 0.2g DETAIL A SONY CODE EIAJ CODE JEDEC CODE QFP-40P-L01 QFP040-P-0707 NOTE : PALLADIUM PLATING This product uses S-PdPPF (Sony Spec.-Palladium Pre-Plated Lead Frame). – 21 –