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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 Rear L Tone Interface Rear R Lin Front L FOCUS FOCUS ON/OFF Position H/L
Tone
Rin Front R M62419FP
M62436FP
Rev.1.0, Sep.19.2003, page 1 of 11
M62436FP
Pin Configuration Diagram (Top View)
REF in 1 Rin 2 SRSPR 3 SRSA 4 SRSNR 5 SRSoutR 6 36 VCC 35 Lin 34 SRSNL 33 SRSoutL 32 FocusINL 31 FPHL 30 FPML 29 REF out 28 FPoutL 27 FPinL 26 FMIXL 25 FNFL 24 LPF1 23 LPF2 22 Lout 21 SRS on/off 20 Focus on/off 19 NC
FocusINR 7 FPHR 8 FPMR 9 SRSB 10 SRSC 11 FPoutR 12 FPinR 13 FMIXR 14 FNFR 15 Rout 16 GND 17 Focus H/L 18
Exterior configuration 36P2R-A NC: Not connected
M62436FP
Internal Block Diagram
VCC 36 Lin 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 29 REF FOCUS IN I/F 28 27 26 25 24 23 22 21 20 19
SRS OUT
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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Symbol REF in Rin SRSPR SRSA SRSNR SRSoutR FocusINR FPHR FPMR SRSB SRSC FPoutR FPinR FMIXR FNFR Rout GND LF Position H/L NC Focus on/off SRS on/off Lout LPF2 LPF1 FNFL FMIXL FPinL FPoutL REF out FPML FPHL FocusINL SRSoutL SRSNL Lin Vcc Function REF input Right channel input Right channel SRS output OP positive input SRS filter capacitor connection A Right channel SRS output OP negative input Right channel SRS output Right channel Focus input Right channel LF high input Right channel LF mid input SRS filter capacitor connection B SRS filter capacitor connection C Right channel LF output Right channel HF input Right channel LF HF mix Right channel Focus output Right channel output Ground LF position H/L setting NC Focus on/off setting SRS on/off setting Left channel output Bass filter capacitor connection 2 Bass filter capacitor connection 1 Left channel Focus output Left channel LF HF mix Left channel HF output Left channel LF output REF output Left channel LF mid input Left channel LF high input Left channel Focus input Left channel SRS output Left channel SRS output OP negative input Left channel input Power supply
Absolute Maximum Ratings
Item Power supply voltage Internal power consumption Heat reduction ratio Ambient operating temperature Storage temperature Symbol VCC Pd K Topr Tstg Ratings 12.0 960 9.6 -20 to +75 -55 to +125 Unit V mW mW/C C C Ta25C Ta>25C Conditions
Rev.1.0, Sep.19.2003, page 3 of 11
M62436FP
Electrical Characteristics
(Ta = 25C, VCC = 8 V, and f = 1 kHz unless otherwise noted.)
Limits Item 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 k unless otherwise noted.) Maximum output voltage Maximum input voltage VOMt VIM1 1.6 0.32 1.9 0.65 Vrms Vrms Pins 2 and 35 input, pins 16 and 22 output RL = 10 k, 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 Symbol Min. Typ. Max. Unit Test Conditions
VIM2 VIM3
0.25 0.2
0.5 0.4

Vrms Vrms
Pass-through gain
Gvt
-2.0
0
2.0
dB
Gv1
7
10
13
dB
Gv2 Gv3
10 12
13 15
16 18
dB dB
f = 1kHMz f = 20kHMz
Output noise voltage
VNO1 VNO2 VNO3

5.0 18 50
15 40 90
Vrms Vrms Vrms
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 k Pins 18, 20, 21 Pins 18, 20, 21
Crosstalk between channels
CT
-90
-75
dB
Switch Block Characteristics High level input voltage VIH Low level input voltage VIL
2.1 0

Vcc 0.8
V V
Rev.1.0, Sep.19.2003, page 4 of 11
M62436FP
Switch Settings
Pin 21 SRS Surround SRS ON SRS OFF Pin 20 Focus FOCUS ON FOCUS OFF SRS On/Off Switch H L Focus On/Off Switch H L Pin 19 Focus Position Focus Position "H" Focus Position "L" Focus H/L Switch 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 [?] 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 0.22 R16 8 R17 R16+R17+R18 =1k R18 29 FOCUS position "H" FOCUS position "L"
9
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 k. 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 = 25C, 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 k unless otherwise noted.)
Item Maximum output voltage Maximum input voltage Symbol VOMt VIM1 Typical Value 1.9 0.65 Unit Vrms Vrms Test Conditions Pins 2 and 35 input, pins 16 and 22 output RL = 10 k, THD = 1% 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% f = 150HMz
VIM2 VIM3
0.85 0.67
Vrms Vrms
f = 1kHMz f = 20kHMz
Pass-through gain
Gvt
0
dB
Gv1
10
dB
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 k
Gv2 Gv3
7 9
dB dB
Output noise voltage
VNO1 VNO2 VNO3
5 18 30
Vrms Vrms Vrms
Crosstalk between channels
CT
-90
dB
Rev.1.0, Sep.19.2003, page 6 of 11
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 Front
Rear Fader Rear
Rev.1.0, Sep.19.2003, page 7 of 11
M62436FP
Characteristic Curves
Heat Reduction Curve (Maximum Rating)
1200
Width Volume Resistance Value-SRS Effect
100
Internal power consumption Pd (W)
1000 960 800 600 480 400 200 0 0 25 50 75 100 125 150
90
SRS effect (%)
80
70
60
50 0 20 40 60 80 100 120 140 160
Ambient temperature Ta (C)
Width volume resistance value (k) (Resistance between pins 5 and 6 and between pins 33 and 34)
Frequency-Output Voltage Gain
30 20 10 0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 0.01 10
Input Voltage-Maximum Output Voltage
LchLch
Output voltage Vomax (Vrms)
Ta=25C, V CC=8V, RL=10k , Bypass
Output voltage gain (dB)
Ta=25C, VCC=8V, THD=1%, BW=400 to 30kHz, RL=10k 1
0.1
LchRch
0.1
1
10
100
0.01 0.01
0.1
1
10
Frequency (kHz)
Input voltage Vi (Vrms)
Maximum Output Voltage-Output Resistance
Maximum output voltage Vomax (Vrms)
10 VCC=12V
Output Voltage-Total Harmonic Distortion
10
Total harmonic distortion THD (%)
1
Ta=25C, VCC=8V, BW=400 to 30kHz, RL=10k , Bypass
1
VCC=8V VCC=5V
0.1
0.01
0.1
0.001
Ta=25C, THD=1% (BW=400 to 30kHz) 0.01 0.1 1 10 100
0.0001 0.01
0.1
1
10
Output resistance RL (k)
Output voltage (Vrms)
Rev.1.0, Sep.19.2003, page 8 of 11
M62436FP
Power Supply Voltage-Output Noise
120 110 Ta=25C, VCC=8V, Vin=0mVrms (Rg=0 ), JIS-A filter
Output noise Vno (Vrms)
100 80 60 SRS: on, Focus: on 40 20 0 2 4 6 8 10 12 14 SRS: on, Focus: off Bypass
Power supply voltage VCC (V)
Rev.1.0, Sep.19.2003, page 9 of 11
M62436FP
Application Example
IN Vcc Width Volume 2.2 C9 NP 0.22 C6 2.2 470p 36 35 34 33 32 R13 R14 390 200 31 R15 390 29 Vref I/F SRS OUT FOCUS IN 28 27 C13 0.0039 C17 390p R39 2.4k 26 25 OUT FOCUS ON/OFF
C9 C6 0.1 0.01 24 23 22
2.2 SRS ON/OFF NC 21 20 19
30
REF
FOCUS IN SRS OUT
1
2
3
4
5
6 C7 470p NP
7
8 R16 R17 390 200
9
10
11
12
13
14
15 C16 390p
16
17
18
Cref
10
2.2 C1 0.018 IN 2.2 C10 0.22 Width Volume R18 390 C2 0.01 C3 0.82 C12 0.0039
2.2 OUT FOCUS Position H/L
R41 2.4k
Unit Resistance: 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
EIAJ Package Code SSOP36-P-450-0.80
36
Plastic 36pin 450mil SSOP
JEDEC Code Weight(g) 0.53
19
Lead Material Alloy 42
e
b2
HE
E
e1
F
Recommended Mount Pad Dimension in Millimeters Min Nom Max 2.4 0.05 2.0 0.35 0.4 0.5 0.13 0.15 0.2 14.8 15.0 15.2 8.2 8.4 8.6 0.8 11.63 11.93 12.23 0.3 0.5 0.7 1.765 0.7 0.85 0.15 0 10 0 .5 11.43 1.27
Symbol
1 18
A
G
D A2 e y
b
A1
A A1 A2 b c D E e HE L L1 z Z1 y b2 e1 I2
L1
z Z1 Detail G Detail F
Rev.1.0, Sep.19.2003, page 11 of 11
L
c
I2
Sales Strategic Planning Div.
Keep safety first in your circuit designs!
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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. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap. Notes regarding these materials 1. These materials are intended as a reference to assist our customers in the selection of the Renesas Technology Corp. product best suited to the customer's application; they do not convey any license under any intellectual property rights, or any other rights, belonging to Renesas Technology Corp. or a third party. 2. Renesas Technology Corp. assumes no responsibility for any damage, or infringement of any third-party's rights, originating in the use of any product data, diagrams, charts, programs, algorithms, or circuit application examples contained in these materials. 3. All information contained in these materials, including product data, diagrams, charts, programs and algorithms represents information on products at the time of publication of these materials, and are subject to change by Renesas Technology Corp. without notice due to product improvements or other reasons. It is therefore recommended that customers contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor for the latest product information before purchasing a product listed herein. The information described here may contain technical inaccuracies or typographical errors. Renesas Technology Corp. assumes no responsibility for any damage, liability, or other loss rising from these inaccuracies or errors. Please also pay attention to information published by Renesas Technology Corp. by various means, including the Renesas Technology Corp. Semiconductor home page (http://www.renesas.com). 4. When using any or all of the information contained in these materials, including product data, diagrams, charts, programs, and algorithms, please be sure to evaluate all information as a total system before making a final decision on the applicability of the information and products. Renesas Technology Corp. assumes no responsibility for any damage, liability or other loss resulting from the information contained herein. 5. Renesas Technology Corp. semiconductors are not designed or manufactured for use in a device or system that is used under circumstances in which human life is potentially at stake. Please contact Renesas Technology Corp. or an authorized Renesas Technology Corp. product distributor when considering the use of a product contained herein for any specific purposes, such as apparatus or systems for transportation, vehicular, medical, aerospace, nuclear, or undersea repeater use. 6. The prior written approval of Renesas Technology Corp. is necessary to reprint or reproduce in whole or in part these materials. 7. If these products or technologies are subject to the Japanese export control restrictions, they must be exported under a license from the Japanese government and cannot be imported into a country other than the approved destination. Any diversion or reexport contrary to the export control laws and regulations of Japan and/or the country of destination is prohibited. 8. Please contact Renesas Technology Corp. for further details on these materials or the products contained therein.
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http://www.renesas.com
(c) 2003. Renesas Technology Corp., All rights reserved. Printed in Japan.
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