RENESAS M62436FP

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
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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.
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