Sound Processors for BOOM BOX / Mini-component Stereo
Single Power Supply Sound Processors with Built-in Pre Amplifier for Tape Recording and Play Back (With Integrated 2-/3- band Equalizer)
BD3401KS2,BD3402KS2
No.10086EAT03
●Description The Sound Processor with built-in record/play functions for cassette players, is suited for sound quality products such as, BOOM BOX, mini- and micro-audio systems. It incorporates various functions ranging from audio source selectors to preamplifiers at the front stage, preamplifier for cassette recording/playing, and a 2-wire serial bus. ●Features 1) Provides Surround and Bass Boost with the Soft-switching feature to reduce the shock sound at switching (BD3401KS2) 2) Provides a specialized power supply terminal in a digital circuit, in order to set and maintain the state inside the IC by the minute stand-by current. 3) Built-in preamplifier for cassette recording/playing allows for minimal external components, freeing up board space. 4) Arranges all I/O terminals to a single point and allows easy PCB routing. 5) Volume and Tone implemented with a resistance ladder circuit; achieving high performance with low noise and low distortion 6) Energy-saving design resulting in low current consumption, by utilizing the BiCMOS process. It has the advantage in quality over the scaling down the power heat control of the internal regulators. ●Applications BOOM BOX, mini-audio systems, and micro-audio systems. ●Product lineup Parameter Equalizer Volume Cassette Recording/Playing Amplifier Karaoke Microphone Input Subwoofer Output Output for Spectrum Analyzer Surround Bass Boost Package ●Absolute maximum ratings (Ta=25℃) Items Power Supply Voltage Power Dissipation Input Voltage Range Operating Temperature Range Storage Temperature Range
*
BD3401KS2 3 band(BASS, MIDDLE, TREBLE) 0 to -44dB/2dB step -44 to -76dB/4dB step, -∞dB ○ ○ ○ ○ ○ ○ ○ SQFP-T64
BD3402KS2 2 band(BASS, TREBLE) 0 to -44dB/2dB step -44 to -76dB/4dB step, -∞dB ○ SQFP-T64
Symbol Vcc Vdd Pd Vin Topr Tstg
Ratings 10 6 1200* GND-0.3 to VCC+0.3 -25 to +75 -55 to +125
Unit V V mW V ℃ ℃
Reduced by 12 mW/℃ over 25℃, when installed on the standard board (size: 70×70×1.6mm).
●Operating voltage range Device Name BD3401KS2 BD3402KS2
Symbol Vcc Vdd
Range 8 to 9.5 3 to 5.5
Unit V
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
1/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
●Electrical characteristics BD3401KS2 Ta=25 ℃ , VCC=9V, VDD=5V, f=1kHz, Vi=1Vrms,RL=10kΩ,Rg=600Ω, INPUT SELECTOR=Ach, INPUT GAIN=0dB, VOLUME=0dB, TREBLE=0dB, BASS=0dB, MIDDLE=0dB, TONE ATT=0dB, MUX=STEREO, MIXING=OFF, MIXING GAIN=0dB, PLAY BACK=TAPE A, REC=OFF, LINE=OFF, MIC=OFF, BASS BOOST=OFF, SURROUND=OFF, AMS=OFF, ALC=OFF, INPUT=pin59,60, OUTPUT=pin32,33, unless otherwise noted. Limits Parameter Symbol Unit Conditions Min. Typ. Max. Circuit Current Output Voltage Gain Total Harmonic Distortion ratio Maximum Output Voltage TOTAL Residual Noise Voltage* Output Noise Voltage* Cross-talk between Channels* Cross-talk between Selectors* Input Impedance Total Harmonic Distortion ratio Maximum Output Voltage Output Voltage Gain Total Harmonic Distortion ratio PLAYBACK Maximum Output Voltage Noise Voltage in input term* PB MUTE Amount ALC Operation Level REC Total Harmonic Distortion ratio Output Noise Voltage* IQ Gv THDt Vomaxt Vr Vno CTC CTS Rin THDmix Vomaxmix Gvp THDp Vomaxp Vnin PBM ALC THDr Vnor -2 2.0 32 2.0 23 2.0 0.5 35 0 0.005 2.5 1.8 3.0 -80 -80 47 0.01 2.5 25 0.01 2.5 0.7 0.7 0.2 40 50 2 0.05 6.0 9.0 -70 -70 62 0.1 27 0.1 6.0 -70 0.9 1 120 mA dB % Vrms µVrms µVrms dB dB kΩ % Vrms dB % Vrms µVrms dB Vrms
%
(No signal) INPUT GAIN=0dB BW=400 to 30kHz OUT=pin32,33,53,54 THD=1%, BW=400 to 30kHz OUT=pin32,33,53,54 Rg=0Ω, Vol=-dB, BW=IHF-A, Rg=0Ω, Vol=0dB BW=IHF-A Rg=0Ω, BW=IHF-A VOLOUT=1Vrms Rg=0Ω, BW=IHF-A Pin1 to 4, 59 to 64 BW=400 to 30kHz, MIXING=ON INPUT SELECTOR=B THD=1%, BW=400 to 30kHz MIXING=ON INPUT SELECTOR=B Vi=20mVrms, pin5-6, 7-8=short IN=pin9,10 OUT=pin6,7 Vi=20mVrms BW=400 to 30kHz pin5-6, 7-8=short IN=pin9,10 OUT=pin6,7 THD=1%, BW=400 to 30kHz pin5-6, 7-8=short IN=pin9,10 OUT=pin6,7 Rg=0Ω,BW=IHF-A pin5-6, 7-8=short IN=pin9,10 OUT=pin6,7 BW=IHF-A, pin5-6, 7-8=short IN=pin9,10 PLAY BACK=MUTE REC=ON ALC=ON BW=400 to 30kHz OUT=pin14,15 REC=ON ALC=ON Rg=0Ω, BW=IHF-A OUT=pin14,15 REC=ON ALC=ON
MIXING
µVrms
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
2/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
Parameter Total Harmonic Distortion ratio MIC
Symbol THDmic
Limits Min Typ. 0.01 Max 0.1
Unit
%
Conditions BW=400 to 30kHz MIC=ON THD=1%, BW=400 to 30kHz MIC=ON OUTPUT=pin55
Maximum Output Voltage SPECTRUM ANALYZER Spectrum Analyzer 1 Output Voltage Gain Spectrum Analyzer 2 Output Voltage Gain Surround Gain
Vomaxmic
2.0
2.5
-
Vrms
Gvs1
-8
-6
-4
dB
Gvs2
-2
0
2
dB
OUTPUT=pin56 SURROUND=ON Vi=500mVrms Vi=500mVrms
SURRO UND
Gsur
4
6
8
dB
TREBLE
Treble Gain
Gt
-8 to +8(2dB/step)
dB
Treble Gain Setting Error
TE
-2
0
2
dB
MIDDLE
Middle Gain
Gm
-8 to +8(2dB/step)
dB
Vi=500mVrms
Middle Gain Setting Error
ME
-2
0
-2
dB
Bass Gain BASS
Gb
-8 to +8(2dB/step)
dB
Vi=500mVrms
Bass Gain Setting Error
BE
-2
0
-2
dB OUTPUT=pin40 AMS=ON, Vi=20mVrms 0 to -48dB,BW=IHF-A VOLOUT=1Vrms -52 to –76dB,BW=IHF-A VOLOUT=1Vrms BW=IHF-A VOLOUT=1Vrms Vi=500mVrms BW=400 to 30kHz,OUT=pin25 No LPF THD=3%, BW=400 to 30kHz OUT=pin25, No LPF
AMS
AMS EQ Gain
Gams
33
35
37
dB
Volume Setting Error 1 VOLUME
VE1
-2
0
2
dB
Volume Setting Error 2
VE2
-3
0
3
dB
Maximum Attenuation* SUBWOOFER
Vmin
-
-
-90
dB
Total Harmonic Distortion ratio
THDs
-
0.01
0.1
%
Maximum Output Voltage
Vomaxs
1.5
2.0
2.5
Vrms
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
3/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
BD3402KS2 Ta=25℃, VCC=9V, VDD=5V, f=1kHz, Vi=1Vrms, RL=10kΩ, Rg=600Ω,INPUT SELECTOR=Ach, INPUT GAIN=0dB, VOLUME=0dB, TREBLE=0dB, BASS=0dB, TONE ATT=0dB, MUX=STEREO, MIXING=OFF, MIXING GAIN=0dB, REC=OFF, LINE=OFF, ALC=OFF INPUT=pin59,60, OUTPUT=pin32,33, unless otherwise noted. Limits Parameter Symbol Unit Conditions Min. Typ. Max. Circuit Current Output Voltage Gain Total Harmonic Distortion ratio TOTAL Maximum Output Voltage Residual Noise Voltage* Output Noise Voltage* Cross-talk between Channels* Cross-talk between Selectors* Input Impedance MIXING Total Harmonic Distortion ratio Maximum Output Voltage Output Voltage Gain Total Harmonic Distortion ratio PLAYBACK Maximum Output Voltage Noise Voltage in input term* PB MUTE Amount ALC Operation Level REC Total Harmonic Distortion ratio Output Noise Voltage* BASS BASS TREBLE Treble Gain Treble Gain Setting Error Bass Gain Bass Gain Setting Error Volume Setting Error 1 Volume Setting Error 2 Maximum Attenuation* IQ Gv THDt Vomaxt Vr Vno CTC CTS Rin THDmix Vomaxmix Gvp THDp Vomaxp Vnin PBM ALC THDr Vnor Gt TE Gb BE VE1 VE2 Vmin -2 2.0 32 2.0 23 2.0 0.5 28 0 0.005 2.5 1.5 2.5 -80 -80 47 0.01 2.5 25 0.01 2.5 0.7 0.7 0.2 40 50 2 0.05 5.0 8.0 -70 -70 62 0.1 27 0.1 6.0 -70 0.9 1 120 mA dB
%
(No signal) INPUT GAIN=0dB BW=400 to 30kHz OUT=pin32,33,53,54 THD=1%, BW=400 to 30kHz OUT=pin32,33,53,54 Rg=0Ω, Vol=-∞dB BW=IHF-A, Rg=0Ω, Vol=0dB BW=IHF-A Rg=0Ω, BW=IHF-A VOLOUT=1Vrms Rg=0Ω, BW=IHF-A Pin1 to 4, 59 to 64 BW=400 to 30kHz MIXING=ON INPUT SELECTOR=B THD=1%, BW=400 to 30kHz MIXING=ON INPUT SELECTOR=B Vi=20mVrms pin5-6, 7-8=short IN=pin11,12 OUT=pin6,7 Vi=20mVrms BW=400 to 30kHz pin5-6, 7-8=short IN=pin11,12 OUT=pin6,7 THD=1%, BW=400 to 30kHz pin5-6, 7-8=short IN=pin11,12 OUT=pin6,7 Rg=0Ω,BW=IHF-A pin5-6, 7-8=short IN=pin11,12 OUT=pin6,7 BW=IHF-A, pin5-6, 7-8=short IN=pin11,12 PLAY BACK=MUTE REC=ON ALC=ON BW=400 to 30kHz OUT=pin14,15 REC=ON, ALC=ON Rg=0Ω, BW=IHF-A OUT=pin14,15 REC=ON, ALC=ON Vi=500mVrms
Vrms µVrms µVrms dB dB kΩ
%
Vrms dB
%
Vrms µVrms dB Vrms
%
µVrms dB dB dB dB dB dB dB
-8 to +8(2dB/step) -2 0 2
-12 to +12(3dB/step) -2 -2 -3
-
Vi=500mVrms
0 0 0
-
-2 2 3 -90
0 to -48dB,BW=IHF-A VOLOUT=1Vrms -52 to –76dB,BW=IHF-A VOLOUT=1Vrms BW=IHF-A VOLOUT=1Vrms
・For measurements marked with *, VP-9690A (Average value wave detection, Effective value display) filter by Matsushita Communication Industrial is used. ・Phase relation between Input/Output signal terminals is the same (Inputs: pin59-64, pin1-4, Outputs: pin32, 33). ・This IC is not designed to be radiation-resistant.
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
VOLUME
4/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
●Control signal specifications 1. Signal Timing Conditions ・Data is read on the rising edge of the clock. ・Latch is read on the falling edge of the clock. ・Latch signal must terminate with the LOW state. ・To avoid malfunctions, clock and data signals must terminate with the LOW state. 1byte=8bit
SC (CLOCK) tsu
9 0% 90% 90% 90%
Technical Note
twc
10%
t wc
10% 10%
thd SI DATA LATCH
ts
th
tsd
thd
ts1
th1
90%
twd
90%
twd
10% 10%
90%
90%
tw1
90%
DATA
DATA
10%
LATCH L ow
Fig.1
Parameter Minimum Clock Width Minimum Data Width Minimum Latch Width Data Set-up Time (DATA→CLK) Data Hold Time (CLK→DATA) Latch Set-up Time (CLK→LATCH) Latch Hold Time (DATA→LATCH) Latch Low Set-up Time Latch Low Hold Time 2. Voltage Conditions for Control Signals Parameter “H” Input Voltage “L” Input Voltage
Symbol twc twd tw1 tsd thd ts1 th1 ts th
Limits Min 2.0 2.0 2.0 1.0 1.0 1.0 1.0 1.0 1.0 Typ.
-
Max
-
Unit µS µS µS µS µS µS µS µS µS
Symbol Vcc=8 to 9.5V Vcc=8 to 9.5V
Limits Min 2.2 0 Typ
-
Max 5.5 1.0
Unit V V
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
5/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
●Control data format list (BD3401KS2) ・Basic Configuration of Control Data Format ←Data input direction MSB D7 Data ・Control Data Formats ←Data input direction D7 Data(1) D7 Data(2) D7 Data(3) D7 Data(4) D7 Data(5) D7 Data(6) D7 Data(7) D7 Data(8) MUX D6 D6 D6 Middle D5 D4 D6 Bass D5 D4 D6 Treble D5 D4 D6 D5 Data D4 D3 D2 D1
Technical Note
LSB D0
Select Address
D6 Input Selector D6
D5
D4
D3
D2 0 D2 0
D1 0 D1 0 D1 1 D1 1 D1 0
D0 0 D0 1 D0 0 D0 1 D0 0
Input Gain D5 Volume D5 D4 D3 TONE ATT(1) D3 TONE ATT(2) D3 0 D3 1 D4 D3 D4 D3
D2 0 D2 0 D2 1
Subwoofer Gain D6 D5 MIXING D5 REC D5 AMS
1 D2 1 D2 1 D2 1
0 D1 0 D1 1 D1 1
0 D0 1 D0 0 D0 1
MIXING GAIN D4 LINE D4 ALC D3 MIC D3 Vocal Fader
PLAY BACK D7 D6 Surround Bass Boost
Data(9)
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
6/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
(BD3402KS2) ・Basic Configuration of Control Data Format Data input direction MSB D7 Data ・Control Data Formats Data input direction D7 Data(1) D7 Data(2) D7 Data(3) D7 Data(4) D7 Data(5) D7 Data(6)
・* Indicates 0 or 1.
Technical Note
LSB D5 D4 D3 D2 D1 Select Address D0
D6
Data
D6 Input Selector D6
D5
D4
D3
D2 0 D2 0
D1 0 D1 0 D1 1 D1 1 D1 0 D1 1
D0 0 D0 1 D0 0 D0 1 D0 1 D0 0
Input Gain D5 Volume D4 D3
D6 Treble D6 Bass D6 MUX D6 *
D5
D4
D3 TONE ATT(1)
D2 0 D2 0 D2 1 D2 1
D5
D4
D3 TONE ATT(2)
D5 MIXING D5 REC
D4
D3
MIXING GAIN D4 LINE D3 ALC
・By changing the setting of Select Address, nine different control formats are selectable. ・In every power-on sequence, all of the address data must be initialized. Example: Data input direction MSB LSB MSB LSB MSB LSB MSB LSB MSB Data(1) L Data(2) L Data(3) L Data(4) L ・・・ Data(9)
LSB L
“L” means a “latch.”
・After power-on, for the second and subsequent times, only the necessary data can be selected for setting. Example: When changing the volume, Data input direction MSB LSB Data(2) L
“L” means a “latch.”
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
7/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
・TONE ATT settings TONE ATT can be set to either one of three modes: 0dB, -4dB and -8dB using D3 in Data (3) or Data (4). When setting TONE ATT, data should be sent as follows: (1)TONE ATT=-4dB (a) Sending Data (3) only MSB LSB Data(3) L LSB L MSB Data(4) LSB MSB L Data(3) LSB L MSB ・・・ LSB Data(9) L
(b) Sending all the data MSB LSB MSB Data(1) L Data(2)
Sending Data(3) after Data(4) follows that Data(3) is given a higher priority. (2)TONE ATT=-8dB (a) Sending Data(4) only ←MSB LSB Data(4) L
(b) Sending all the data MSB LSB L MSB Data(2) LSB L MSB Data(3) LSB L MSB LSB L ・・・ MSB LSB L
Data(1)
Data(4)
Data(9)
Sending Data(4) after Data(3) follows that Data(4) is given a higher priority.
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
8/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
●Pin description (BD3401KS2) Pin No. Pin Name 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 D1 D2 E1 E2 PBNF2 PBOUT2 PBOUT1 PBNF1 TAPE A1 TAPE A2 TAPE B1 TAPE B2 RECNF2 RECOUT2 RECOUT1 RECNF1 ALC SC SI VDD GND VCC 1/2VCC FILTER SW OUT LF4 LF3 LF2 LF1 BBIN2 BBNF2 VOL OUT2
Technical Note
Description 1ch input pin D 2ch input pin D 1ch input pin E 2ch input pin E 2ch PB filter setting pin 2ch PB output pin 1ch PB output pin 1ch PB filter setting pin 1ch TAPE input pin A 2ch TAPE input pin A 1ch TAPE input pin B 2ch TAPE input pin B 2ch REC filter setting pin 2ch REC output pin 1ch REC output pin 1ch REC filter setting pin ALC time constant setting pin Serial clock input pin Serial data input pin Digital power supply pin Ground pin Analog power supply pin 1/2VCC output pin 1/2 VCC pin Subwoofer output pin Primary LPF setting pin Secondary LPF setting pin Secondary LPF setting pin Secondary LPF setting pin 2ch bass boost filter setting pin 2ch bass boost filter setting pin 2ch output pin
Pin No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Pin Name VOLOUT1 BBNF1 BBIN1 VIN1 TONE OUT1 VIN2 TONE OUT2 AMS OUT BNF2 BOUT2 BOUT1 BNF1 MNF1 MOUT1 MOUT2 MNF2 TNF2 TNF1 SUR1 SUR2 LINEOUT2 LINEOUT1 SAOUT2 SAOUT1 CAP MIC A1 A2 B1 B2 C1 C2
Description 1ch output pin 1ch bass boost filter setting pin 1ch bass boost filter setting pin 1ch volume input pin 1ch tone output pin 2ch volume input pin 2ch tone output pin AMS output pin 2ch bass filter setting pin 2ch bass filter setting pin 1ch bass filter setting pin 1ch bass filter setting pin 1ch middle filter setting pin 1ch middle filter setting pin 2ch middle filter setting pin 2ch middle filter setting pin 2ch treble filter setting pin 1ch treble filter setting pin Surround setting pin Surround setting pin 2chLINE output pin 1chLINE output pin Spectrum Analyzer output pin 2 Spectrum Analyzer output pin 1 Time constant setting pin for absorbing switching shock sound MIC input pin A 1ch input pin A 2ch input pin A 1ch input pin B 2ch input pin B 1ch input pin C 2ch input pin C
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
9/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
●Block diagram, application circuit, pin assignment (BD3401KS2)
Technical Note
VDD2
VDD1
22k 4.7k 4.7k 22k 10µ 4.7k
1µ 0.01µ 0.01µ
10k
4.7k 10k 4.7k 4.7k 220k 680 10µ +
+
10µ + 4.7k +
4.7k +
0.01µ 0.01µ 1µ
4.7k 0.1µ
0.1µ
10µ
10µ +
10µ +
0.22µ
4.7µ
4.7µ
0.22µ 35 34 33
48
47
46
45
44
43
42
41
40
39
38
37
36
49
BASS → MIDDLE → TREBLE
32 0.22µ 31
+
50
+
1µ 5.1k
SURROUND 52 ATT ATT G
10µ
0
+
53
+ + -
+
BUFFER MIX MIC MIX VOCAL FADER
10µ + 10µ + 10µ + + 0.33µ 10µ + + 10µ + 10µ + 10µ + 10µ + 10µ + 10µ
54
55
DiLIMITER
56
25
57
+ -
24
47µ 23
58
59
22 + 47µ
60
21 47µ
61
20
63 ALC ALC
DIGITAL CONTROL
62
Input Selector
19
18 22µ +
+
64
+ -
17
+
+ -
+
+ -
1
2
3
4
5
6
7
8
9
10
11
12
13
0.01µ
14
15
16
0.01µ
+
+
+
+
+
+
10µ
10µ
10µ
10µ
+
390k
10µ
+
0.01µ
0.01µ
390k 10µ
10µ
10µ
+
10µ
+
12k 330k
330k 12k
470k 330k
330k 470k
10µ
330p 220p 220p 330p
100k 10µ +
4.7k
4.7k
100k + 10µ
UNIT RESISTANCE : Ω CAPACITANCE : F Fig.2
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
10/18
2010.10 - Rev.A
+
+
10µ
+
+
+
51
BASS → MIDDLE → TREBLE
+
0.0022µ
680 220k
+
30 0.22µ 10k 29 0.1µ 10k
fc=100HZ f 28
10k 10k
0.1µ 27
26 0.1µ
100k
+ +
0.0022µ +
10µ
+
SOFT SWITCH
+ -
+ + +
+ -
BD3401KS2,BD3402KS2
●Pin description (BD3402KS2) Pin No. Pin Name 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 D1 D2 E1 E2 PBNF2 PBOUT2 PBOUT1 PBNF1 NC NC TAPE 1 TAPE 2 RECNF2 RECOUT2 RECOUT1 RECNF1 ALC SC SI VDD GND VCC NC FILTER NC NC NC NC NC NC NC VOL OUT2
Technical Note
Description 1ch input pin D 2ch input pin D 1ch input pin E 2ch input pin E 2ch PB filter setting pin 2ch PB output pin 1ch PB output pin 1ch PB filter setting pin Non Connection Non Connection 1ch TAPE input pin 2ch TAPE input pin 2ch REC filter setting pin 2ch REC output pin 1ch REC output pin 1ch REC filter setting pin ALC time constant setting pin Serial clock input pin Serial data input pin Digital power supply pin Ground pin Analog power supply pin Non Connection 1/2 VCC pin Non Connection Non Connection Non Connection Non Connection Non Connection Non Connection Non Connection 2ch output pin
Pin No. 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
Pin Name VOL OUT1 NC NC VIN1 TONE OUT1 VIN2 TONE OUT2 NC BNF2 BOUT2 BOUT1 BNF1 NC NC NC NC TNF2 TNF1 NC NC LINEOUT2 LINEOUT1 NC NC NC NC A1 A2 B1 B2 C1 C2
Description 1ch output pin Non Connection Non Connection 1ch volume input pin 1ch tone output pin 2ch volume input pin 2ch tone output pin Non Connection 2ch bass filter setting pin 2ch bass filter setting pin 1ch bass filter setting pin 1ch bass filter setting pin Non Connection Non Connection Non Connection Non Connection 2ch treble filter setting pin 1ch treble filter setting pin Non Connection Non Connection 2chLINE output pin 1chLINE output pin Non Connection Non Connection Non Connection Non Connection 1ch input pin A 2ch input pin A 1ch input pin B 2ch input pin B 1ch input pin C 2ch input pin C
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
11/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
●Block diagram, application circuit, pin assignment (BD3402KS2)
Technical Note
10µ + 4.7k 0.047µ 0.047µ +
10µ 4.7k 10µ 10µ
10µ
+
NC
NC
NC
NC
NC
NC
36 35
48
47
46
45
44
43
42
41
40
39
38
NC
34 33
+
37
+
49 0.0022µ 50
BASS
TREBLE
32
31
NC NC NC NC NC NC NC +
NC
52 ATT ATT
10µ
+
53
+ + BUFFER MIX
10µ
+
54
NC NC NC NC
55
56
57
58
10µ
+
59
10µ
+
60
10µ
+
61
10µ
+
+
+ -
10µ
+
63 ALC ALC
DIGITAL CONTROL
62
Input Selector
+
+ -
+
+ -
10µ
+
64
17
100k 16
0.01µ
1
+
2
+
3
4
5
6
12k 330k
7
330k 12k
8
9
10
11
+
12
+
13
0.01µ
14
15
NC
+
10µ
10µ 10µ + + 10µ 390k 10µ 0.01µ 0.01µ 390k
+
NC
470k 330k 10µ 10µ 330p 220p 100k 4.7k +
330k 470k
220p 330p 4.7k 100k +
10µ
10µ
10µ
UNIT RESISTANCE : Ω CAPACITANCE : F Fig.3
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
12/18
2010.10 - Rev.A
+
+
NC
51
BASS
TREBLE
30
29
28
27
26
25
+ -
24
47µ 23
NC
22 + 47µ
21 47µ
20
19
18 22µ
+
10µ +
0.0022µ
+ + + + +
BD3401KS2,BD3402KS2
●Reference data
35 30 25 35 30 25
Technical Note
ICC(mA)
ICC(mA)
20 15 10 5 0 0 2 4 6 8 10
20 15 10 5 0 0 2 4 6 8 10
GAIN(dB)
5 4 3 2 1 0 -1 -2 -3 -4 -5 10 100 1000 10000 100000
VCC(V)
VCC(V)
FREQUENCY(Hz)
Fig.4 Circuit Current - Supply Voltage (BD3401KS2)
10
Fig.5 Circuit Current - Supply Voltage (BD3402KS2)
Fig.6 Voltage Gain - Frequency
10
15 10
OUTPUT VOLTAGE(Vrms)
+8dB(100Hz)
1
1
THD+N(%)
5
0.1
0.1
GAIN(dB)
0 -5 -10
0.01
0.01
-8dB～+8dB 2dB/step -8dB(100Hz)
10 100 1000 10000 100000
0.001 0.001
0.01
0.1
1
10
0.001 0.001
-15
0.01
0.1
1
10
INPUT VOLTAGE(Vrms)
OUTPUT VOLTAGE(Vrms)
FREQUENCY(Hz)
Fig.7 Output Voltage - Input Voltage
Fig.8 Total Harmonic Distortion ratio - Output Voltage
Fig.9 Bass Gain - Frequency (BD3401KS2)
15
15
15
+12dB(100Hz)
10 5 0 -5 -10 -15 10 100 1000 10000 100000
10 5 0 -5 -10 -15 10 100
+8dB(1kHz)
+8dB(10kHz)
10 5 0 -5 -10
GAIN(dB)
-12dB～ +12dB 3dB/step -12dB(100Hz)
GAIN(dB)
-8dB～ +8dB 2dB/step
GAIN(dB)
－8dB～+8dB 2dB/step
-8dB(1kHz)
1000 10000 100000
－8dB(10kHz)
-15 10 100 1000 10000 100000
FREQUENCY(Hz)
FREQUENCY(Hz)
FREQUENCY(Hz)
Fig.10 Bass Gain - Frequency (BD3402KS2)
Fig.11 Middle Gain – Frequency (BD3401KS2)
Fig.12 Treble Gain - Frequency
20 10
10 8
20 10 0
12dB 9dB
GAIN(dB)
0 -10 -20 -30 10 100 1000 10000 100000
GAIN(dB)
6 4
GAIN(dB)
-10 -20 -30 -40 -50
6dB 0dB
2 0 10 100 1000 10000 100000
-60 10 100 1000 10000 100000
FREQUENCY(Hz)
FREQUENCY(Hz)
FREQUENCY(Hz)
Fig.13 Bass Boost Gain - Frequency (BD3401KS2)
Fig.14 Surround Gain - Frequency (BD3401KS2)
Fig.15 Subwoofer Gain - Frequency (BD3401KS2)
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
13/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
90
10
10
70
OUTPUT VOLTAGE(Vrms)
80
50 40 30 20 10 0 10 100 1000 10000 100000
THD+N(%)
GAIN(dB)
60
1
1
0.1
0.1
0.01 0.0001
0.01
0.001 0.01
0.1
1
10
FREQUENCY(Hz)
INPUT VOLTAGE(Vrms)
OUTPUT VOLTAGE(Vrms)
Fig.16 Amp Gain - Frequency (PB)
Fig.17 Output Voltage – Input Voltage (PB)
Fig.18 Total Harmonic Distortion ratio - Output Voltage (PB)
15 10 5 0 -5 -10 -15 10 100 1000 10000 100000
10
10
OUTPUT VOLTAGE(Vrms)
1
0.1
THD+N(%)
GAIN(dB)
1
0.1
0.01
0.001 0.001
0.01
0.1
1
10
0.01 0.001
0.01
0.1
1
FREQUENCY(Hz)
INPUT VOLTAGE(Vrms)
OUTPUT VOLTAGE(Vrms)
Fig.19 Amp Gain - Frequency (REC)
Fig.20 Output Voltage – Input Voltage (REC)
Fig.21Total Harmonic Distortion ratio – Output Voltage (REC)
40 30 20 10 0 -10 -20 10 100 1000 10000 100000
GAIN(dB)
FREQUENCY(Hz)
Fig.22 AMS Gain - Frequency (BD3401KS2)
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
14/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
●Notes for use 1) Numbers and data in entries are representative design values and are not guaranteed values of the items. 2) Although ROHM is confident that the example application circuit reflects the best possible recommendations, be sure to verify circuit characteristics for your particular application. Modification of constants for other externally connected circuits may cause variations in both static and transient characteristics for external components as well as this Rohm IC. Allow for sufficient margins when determining circuit constants. 3) Absolute maximum ratings Use of the IC in excess of absolute maximum ratings, such as the applied voltage or operating temperature range (Topr), may result in IC damage. Assumptions should not be made regarding the state of the IC (short mode or open mode) when such damage is suffered. A physical safety measure, such as a fuse, should be implemented when using the IC at times where the absolute maximum ratings may be exceeded. 4) GND potential Ensure a minimum GND pin potential in all operating conditions. Make sure that no pins are at a voltage below the GND at any time, regardless of whether it is a transient signal or not. 5) Thermal design Perform thermal design, in which there are adequate margins, by taking into account the permissible dissipation (Pd) in actual states of use. 6) Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of the ICs. Wrong mounting direction or shorts between terminals, GND, or other components on the circuits, can damage the IC. 7) Operation in strong electromagnetic field Using the ICs in a strong electromagnetic field can cause operation malfunction. 8) Serial control For the SC and SI terminals, the wiring and layout patterns should be routed as not to cause interference with the analog-signal-related lines. 9) Power ON/OFF At power ON/OFF, a shock sound will be generated and, therefore, MUTE shall be applied. 10) Start-up sequence of the power supplies VDD and VCC should be turned on simultaneously or VDD first, followed by VCC. 11) Function switching (BD3401KS2) For all functions except Master Volume, Treble, Middle, Bass, Surround, and Bass Boost, MUTE must be applied during setup. (BD3402KS2) For all the functions except Master Volume, Treble and Bass, MUTE must be applied during setup.. 12) Power-ON Reset A built-in circuit for performing initialization inside the IC at power-ON is provided. In unstable systems it is recommended that the data shall be sent to all the addresses during power-ON, until this operation cycle is completed. Mute should be applied during this cycle. Function Input Selector Input Gain Volume Treble Bass Middle TONE ATT Subwoofer MUX Mixing Mixing Gain PLAY BACK REC LINE MIC Bass Boost Surround AMS ALC Vocal Fader Initial State MUTE -5dB 0dB 0dB 0dB 0dB 0dB 0dB STEREO OFF 3dB TAPE A OFF OFF OFF OFF OFF OFF OFF OFF BD3401KS2 ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ BD3402KS2 ○ ○ ○ ○ ○ ○ ○ ○ ○ No selector ○ ○ ○ -
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
15/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
13) Constraints of serial control (1) On soft-switching of the BASS BOOST, SURROUND and AMS functions, data must not be serially sent to the functions involved before the switching operation is completed. Data (1) to (8) can be serially sent immediately after sending Data (9). For functions that need to use soft-switch, data (Data (9)) can be serially sent on the same select address. Direction
Data(9) T
Data (9)
The time interval: T(sec) between Data (9) must be set to have a suffiecient delay time. For example, 100ms or more when C on pin57 is 0.33µF. Fig.23 (2) When switching AMS ON and OFF, a shock sound will be generated. Using MUTE provided on VOLUME, control data should be sent in order to avoid outputting the shock sound from VOLOUT1,2 (pin32,33) as described in the figure below: AMS OFF ON AMS ON OFF
Direction
VOLUME MUTE DATA
AMS ON
AMS OFF
VOLUME SETTING DATA
T1 Time: T1 is an arbitrary number Fig.24
T2 Time: T2 should be 100ms or more when C on pin57 is 0.33µF.
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
16/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
●Thermal derating characteristic
1600
Technical Note
1400
SQFP-T64
1200 Power Dissipation : Pd （mW)
1000
800
600
400
200
0 0 25 50 75 100 125 Ambient Temperature: Ta(℃)
When installed on the ROHM standard board (size: 70×70×1.6mm, Glass epoxy board) Fig.25
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
17/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
●Ordering part number
Technical Note
B
D
3
4
0
1
K
S
2
Packaging and forming specification None: Tray
Part No.
Part No. 3401,3402
Package KS2: SQFP-T64
SQFP-T64
14.0 ± 0.3 12.0 ± 0.2
48 49 33 32
Container Quantity Tray (with dry pack) 1000pcs
Direction of feed Direction of product is fixed in a tray
14.0 ± 0.3
12.0 ± 0.2
64 1 16
0.125 ± 0.1
1.4 ± 0.1
0.1 ± 0.1
0.65 0.3±0.1
0.15
0.5
17
1pin
(Unit : mm)
∗ Order quantity needs to be multiple of the minimum quantity.
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
18/18
2010.10 - Rev.A
Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the consent of ROHM Co.,Ltd. The content specified herein is subject to change for improvement without notice. The content specified herein is for the purpose of introducing ROHM's products (hereinafter "Products"). If you wish to use any such Product, please be sure to refer to the specifications, which can be obtained from ROHM upon request. Examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the Products. The peripheral conditions must be taken into account when designing circuits for mass production. Great care was taken in ensuring the accuracy of the information specified in this document. However, should you incur any damage arising from any inaccuracy or misprint of such information, ROHM shall bear no responsibility for such damage. The technical information specified herein is intended only to show the typical functions of and examples of application circuits for the Products. ROHM does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by ROHM and other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. The Products specified in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, office-automation equipment, communication devices, electronic appliances and amusement devices). The Products specified in this document are not designed to be radiation tolerant. While ROHM always makes efforts to enhance the quality and reliability of its Products, a Product may fail or malfunction for a variety of reasons. Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospace machinery, nuclear-reactor controller, fuelcontroller or other safety device). ROHM shall bear no responsibility in any way for use of any of the Products for the above special purposes. If a Product is intended to be used for any such special purpose, please contact a ROHM sales representative before purchasing. If you intend to export or ship overseas any Product or technology specified herein that may be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com © 2010 ROHM Co., Ltd. All rights reserved.
R1010A
