M62436FP SRS Sound Controller with SRS FOCUS, SRS Surround Sound On-Chip Sound Controller REJ03F0061-0100Z Rev.1.0 Sep.19.2003 Description The M62436FP is a soundstaging control IC that was developed primarily for car audio systems. It provides increased flexibility in speaker placement and can also be used for home audio applications. (The M62436FP is particularly effective when combined with SRS.) Note: The FOCUS technology rights incorporated in the M62436FP are owned by SRS Labs, a U.S. Corporation and licensed to Renesas Technology. Purchaser of M62436FP must sign a license for use of the chip and display of the SRS Labs trademarks. Any products incorpo-rating the M62436FP must be sent to SRS Labs for review. FOCUS is protected under US and foreign patents issued and/or pending. FOCUS, SRS and (O) symbol are trademarks of SRS Labs, Inc. in the United States and selected foreign countries. Neither the purchase of the M62436FP, nor the corresponding sale of audio enhancement equipment conveys the right to sell commercialized recordings made with any SRS technology. SRS Labs requires all set makers to comply with all rules and regulations as outlined in the SRS Trademark Usage Manual separately provided. Features • On-chip SRS Focus • On-chip SRS sound • SRS on/off, Focus on/off, and bypass settings implemented using DC control Recommended Operating Conditions Power supply voltage range: VCC = 4.5–12 V Rated power supply voltage: VCC = 8 V System Block Diagram SRS ON/OFF FOCUS FOCUS ON/OFF Position H/L Rear L Tone Interface Rear R Tone Lin Front L Rin Front R M62419FP M62436FP Rev.1.0, Sep.19.2003, page 1 of 11 M62436FP Pin Configuration Diagram (Top View) REF in 1 36 VCC Rin 2 35 Lin SRSPR 3 34 SRSNL SRSA 4 33 SRSoutL SRSNR 5 32 FocusINL 6 31 FPHL FocusINR 7 30 FPML SRSoutR M62436FP FPHR 8 FPMR 9 SRSB 10 SRSC 11 29 REF out 28 FPoutL 27 FPinL 26 FMIXL FPoutR 12 25 FNFL FPinR 13 24 LPF1 FMIXR 14 23 LPF2 FNFR 15 22 Lout Rout 16 21 SRS on/off GND 17 20 Focus on/off Focus H/L 18 19 NC Exterior configuration 36P2R-A NC: Not connected Internal Block Diagram VCC Lin 36 35 SRSNL FocusINL FPML FPoutL FMIXL LPF1 Lout SRS Focus on/off on/off NC SRSoutL FPHL REF out FPinL FNFL LPF2 34 33 32 31 30 SRS OUT 29 28 27 26 25 24 23 22 21 20 19 REF FOCUS IN I/F REF FOCUS IN SRS OUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 REF in SRSPR SRSNR FocusINR FPMR SRSC FPinR FNFR GND Rin SRSA SRSoutR FPHR SRSB FPoutR FMIXR Rout Focus H/L Rev.1.0, Sep.19.2003, page 2 of 11 M62436FP Pin Description Pin No. Symbol Function 1 REF in REF input 2 Rin Right channel input 3 4 SRSPR SRSA Right channel SRS output OP positive input SRS filter capacitor connection A 5 6 SRSNR SRSoutR Right channel SRS output OP negative input Right channel SRS output 7 8 FocusINR FPHR Right channel Focus input Right channel LF high input 9 10 FPMR SRSB Right channel LF mid input SRS filter capacitor connection B 11 12 SRSC FPoutR SRS filter capacitor connection C Right channel LF output 13 14 FPinR FMIXR Right channel HF input Right channel LF HF mix 15 16 FNFR Rout Right channel Focus output Right channel output 17 18 GND LF Position H/L Ground LF position H/L setting 19 20 NC Focus on/off NC Focus on/off setting 21 22 SRS on/off Lout SRS on/off setting Left channel output 23 24 LPF2 LPF1 Bass filter capacitor connection 2 Bass filter capacitor connection 1 25 26 FNFL FMIXL Left channel Focus output Left channel LF HF mix 27 28 FPinL FPoutL Left channel HF output Left channel LF output 29 30 REF out FPML REF output Left channel LF mid input 31 32 FPHL FocusINL Left channel LF high input Left channel Focus input 33 34 SRSoutL SRSNL Left channel SRS output Left channel SRS output OP negative input 35 36 Lin Vcc Left channel input Power supply Absolute Maximum Ratings Item Symbol Ratings Unit Power supply voltage VCC 12.0 V Internal power consumption Heat reduction ratio Pd 960 mW Ta≤25°C Kθ 9.6 mW/°C Ta>25°C Ambient operating temperature Storage temperature Topr -20 to +75 °C Tstg -55 to +125 °C Rev.1.0, Sep.19.2003, page 3 of 11 Conditions M62436FP Electrical Characteristics (Ta = 25°C, VCC = 8 V, and f = 1 kHz unless otherwise noted.) Limits Item Symbol Min. Typ. Max. Unit Test Conditions Power supply characteristics Circuit current Icc 22 45 mA Pin 36 current, no signal I/O characteristics (R13 = R16 = 390, R14 = R17 = 200, R15 = R18 = 390, R40 = R42 = 10 kΩ unless otherwise noted.) Maximum output voltage VOMt 1.6 1.9 Vrms Maximum input voltage VIM1 0.32 0.65 Vrms VIM2 VIM3 0.25 0.2 0.5 0.4 Vrms Vrms Gvt −2.0 0 2.0 dB Gv1 7 10 13 dB Gv2 10 13 16 dB Gv3 12 15 18 dB VNO1 5.0 15 µVrms VNO2 18 40 µVrms VNO3 50 90 µVrms CT −90 −75 dB Switch Block Characteristics High level input voltage VIH 2.1 ∼ Vcc V Pins 18, 20, 21 Low level input voltage 0 ∼ 0.8 V Pins 18, 20, 21 Pass-through gain Output noise voltage Crosstalk between channels VIL Rev.1.0, Sep.19.2003, page 4 of 11 Pins 2 and 35 input, pins 16 and 22 output RL = 10 kΩ, THD = 1% Pins 2 and 35 input, pins 16 f = 150HMz and 22 output SRS: on, Focus: off, THD = 1% Pins 2 and 35 input, pins 16 f = 1kHMz and 22 output f = 20kHMz SRS: on Focus: Position “H” on THD = 1% Vi = 100 mVrms, SRS: off, Focus: off Gain between pins 2 and 35 and pins 16 and 22 Vi = 100 mVrms Pins 2 and 35 input, pins 16 and 22 output SRS: on, Focus: off Vi = 100 mVrms SRS: on Focus: Position “H” on Gain between pins 2 and 35 and pins 16 and 22 f = 150HMz f = 1kHMz f = 20kHMz Rg = 0 (pins 2 and 35), SRS: off, Focus: off DIN-audio filter Rg = 0 (pins 2 and 35), SRS: on, Focus: off DIN-audio filter Rg = 0 (pins 2 and 35) SRS: on, Focus: Position “H” on DIN-audio filter Input side: f = 1 kHz, Vi = 0.5 Vrms Measurement side: Rg = 0, JIS-A filter Focus and SRS: off, RL = 10 kΩ M62436FP Switch Settings Pin 21 SRS Surround SRS On/Off Switch Pin 19 Focus Position Focus H/L Switch SRS ON H Focus Position "H" H SRS OFF L Focus Position "L" L Pin 20 Focus Focus On/Off Switch FOCUS ON FOCUS OFF H L Note: The bypass mode can be selected by setting the SRS on/off switch and Focus on/off switch to "L". External Resistors The midrange through high-range gain of the Focus circuit of the M62436FP can be specified using an externally connected resistor. The midrange through high-range gain is set by the resistance division value between the 0.22 µ[?] connected to pin 7 and REF. The M62436FP allows the user-specified gain to be set to high or low by switching the Focus position H/L setting of pin 18. The recommended resistance value settings are listed below. 1. Focus Position “H” Setting R17+R18 R16+R17+R18 setting possible 2. Focus Position “L” Setting R18 R16+R17+R18 setting possible Recommended Setting Values R16 = 390 , R17 = 200 , R18 = 390 Focus Position "H" = 60% Focus Position "L" = 40% External C10 7 0.22µ R16 R17 ∗ R16+R17+R18 =1kΩ R18 8 FOCUS position "H" 9 FOCUS position "L" 29 REF Right channel external resistor Notes 1. The left channel setting pins 7, 8, and 9 correspond to pins 32, 31, and 30. 2. Settings should be made so that R16 + R17 + R18 = 1 kΩ. The effect (full-range gain) of the Focus circuit of the M62436FP can be reduced using an externally connected resistor. Rev.1.0, Sep.19.2003, page 5 of 11 M62436FP 14 External 15 RADD 2.4k 390p Focus gain setting external resistor The Focus gain can be reduced by connecting resistors between pins 14 and 15 and between pins 25 and 26. This has the effect of improving the maximum input voltage (and the output noise voltage) characteristics. However, there is a limitation on the maximum input voltage (Vl = 0.6 Vrms) due to the SRS sound block gain at f = 150 Hz. Reference Note: Ta = 25°C, f = 1 kHz, R13 = R16 = 390, R14 = R17 = 200, R15 = R18 = 390, resistance between pins 14 and 15 and between pins 25 and 26 = 10 kΩ unless otherwise noted.) Item Symbol Typical Value Unit Test Conditions Maximum output voltage VOMt 1.9 Vrms Pins 2 and 35 input, pins 16 and 22 output RL = 10 kΩ, THD = 1% Maximum input voltage VIM1 0.65 Vrms VIM2 0.85 Vrms VIM3 0.67 Vrms Pins 2 and 35 input, pins 16 and 22 output SRS: on, Focus: off, THD = 1% Pins 2 and 35 input, pins 16 and 22 output SRS: on Focus: Position “H” on THD = 1% Gvt 0 dB Gv1 10 dB Gv2 Gv3 7 9 dB dB VNO1 5 µVrms VNO2 18 µVrms VNO3 30 µVrms CT −90 dB Pass-through gain Output noise voltage Crosstalk between channels Rev.1.0, Sep.19.2003, page 6 of 11 f = 150HMz f = 1kHMz f = 20kHMz Vi = 100 mVrms, SRS: off, Focus: off Gain between pins 2 and 35 and pins 16 and 22 f = 150HMz Vi = 100 mVrms Pins 2 and 35 input, pins 16 and 22 output SRS: on, Focus: off f = 1kHMz Vi = 100 mVrms SRS: on f = 20kHMz Focus: Position “H” on Gain between pins 2 and 35 and pins 16 and 22 Rg = 0 (pins 2 and 35), SRS: off, Focus: off DIN-audio filter Rg = 0 (pins 2 and 35), SRS: on, Focus: off DIN-audio filter Rg = 0 (pins 2 and 35) SRS: on, Focus: Position “H” on DIN-audio filter Input side: f = 1 kHz, Vi = 0.5 Vrms Measurement side: Rg = 0, JIS-A filter Focus and SRS: off, RL = 10 kΩ M62436FP Sample System Circuit (Only One Channel Shown) 1. SRS Active for Front Speaker Only M62419FP/M62440FP M62436FP Front Fader TONE Master Volume SRS FOCUS Front Rear Fader Rear 2. SRS Active for Front and Rear Speakers (Focus Active for Front Speaker Only) M62436FP M62419FP/M62440FP Front Fader TONE Master Volume SRS FOCUS Rear Fader Rear Rev.1.0, Sep.19.2003, page 7 of 11 Front M62436FP Characteristic Curves Width Volume Resistance Value-SRS Effect 1200 100 1000 960 90 SRS effect (%) Internal power consumption Pd (W) Heat Reduction Curve (Maximum Rating) 800 600 480 400 80 70 60 200 0 50 0 25 50 75 100 125 150 80 100 120 140 160 10 Ta=25˚C, V CC=8V, RL=10k , Bypass Lch→Lch Lch→Rch 0.1 10 1 Ta=25˚C, V CC=8V, THD=1%, BW=400 to 30kHz, RL=10k 1 0.1 0.01 0.01 100 0.1 1 10 Input voltage Vi (Vrms) Frequency (kHz) Maximum Output Voltage-Output Resistance Output Voltage-Total Harmonic Distortion 10 10 Total harmonic distortion THD (%) Maximum output voltage Vomax (Vrms) 60 Input Voltage-Maximum Output Voltage Output voltage Vomax (Vrms) Output voltage gain (dB) Frequency-Output Voltage Gain VCC=12V VCC=8V 1 VCC=5V 0.1 Ta=25˚C, THD=1% (BW=400 to 30kHz) 0.01 0.1 40 Width volume resistance value (kΩ) (Resistance between pins 5 and 6 and between pins 33 and 34) Ambient temperature Ta (˚C) 30 20 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 0.01 20 0 1 10 Output resistance RL (kΩ) Rev.1.0, Sep.19.2003, page 8 of 11 100 1 Ta=25˚C, V CC=8V, BW=400 to 30kHz, RL=10k , Bypass 0.1 0.01 0.001 0.0001 0.01 0.1 1 Output voltage (Vrms) 10 M62436FP Power Supply Voltage-Output Noise 120 Ta=25˚C, V CC=8V, Vin=0mVrms (Rg=0 ), JIS-A filter Output noise Vno (µVrms) 110 100 80 60 SRS: on, Focus: on 40 SRS: on, Focus: off 20 Bypass 0 2 4 6 8 10 12 Power supply voltage VCC (V) Rev.1.0, Sep.19.2003, page 9 of 11 14 M62436FP Application Example Width Volume ∗ IN Vcc C9 NP 0.22µ 2.2µ R13 R14 390 200 C6 2.2µ 470p 36 35 34 33 C13 0.0039µ 32 31 R15 390 30 29 28 27 R39 2.4k 26 C9 C6 0.1µ 0.01µ 25 FOCUS ON/OFF OUT C17 390p 24 23 22 2.2µ SRS ON/OFF NC 21 20 19 Vref I/F SRS OUT FOCUS IN REF FOCUS IN SRS OUT 1 Cref 2 3 4 5 6 C7 470p NP 10µ 7 8 9 10 11 12 13 R16 R17 390 200 IN 2.2µ C10 0.22µ Width Volume ∗ R18 390 C2 0.01µ 15 C16 390p 2.2µ C1 0.018µ 14 C12 0.0039µ C3 0.82µ R41 2.4k 16 17 18 2.2µ OUT FOCUS Position H/L Unit Resistance: Ω Capacitance: F * The SRS stereo effect can be reduced by connecting resistors (width volume) between pins 5 and 6 and between pins 33 and 34. However, the resistance value connected between pins 5 and 6 and between pins 33 and 34 should be the same. Usage Notes No measures have been taken to prevent switching noise when the M62436FP’s control switches (SRS on/off, Focus on/off, and Focus Position H/L) are operated. Therefore several tens of mV of switching noise may be generated. It is therefore recommended that external muting be applied to the output from the M62436FP when operating the switches. In addition, it is recommended that external muting be applied at power-on until all the necessary data has been written by the microprocessor. Rev.1.0, Sep.19.2003, page 10 of 11 M62436FP Package Dimensions 36P2R-A Plastic 36pin 450mil SSOP EIAJ Package Code SSOP36-P-450-0.80 JEDEC Code Ð Weight(g) 0.53 e b2 19 E HE e1 I2 36 Lead Material Alloy 42 Recommended Mount Pad F Symbol 1 18 A D G A2 e b L L1 y A1 A A1 A2 b c D E e HE L L1 z Z1 y c z Z1 Detail G Rev.1.0, Sep.19.2003, page 11 of 11 Detail F b2 e1 I2 Dimension in Millimeters Min Nom Max Ð Ð 2.4 0.05 Ð Ð Ð 2.0 Ð 0.35 0.4 0.5 0.13 0.15 0.2 14.8 15.0 15.2 8.2 8.4 8.6 Ð 0.8 Ð 11.63 11.93 12.23 0.3 0.5 0.7 Ð 1.765 Ð Ð 0.7 Ð Ð Ð 0.85 Ð Ð 0.15 0ϒ Ð 10ϒ Ð 0 .5 Ð Ð 11.43 Ð Ð 1.27 Ð Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan Keep safety first in your circuit designs! 1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. 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