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
IQ
-
35
50
mA
(No signal)
Output Voltage Gain
Gv
-2
-
0
2
dB
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,
Total Harmonic Distortion ratio
THDt
0.005
0.05
-
%
Maximum Output Voltage
TOTAL
Vomaxt
2.0
-
-
-
-
2.5
Vrms
Residual Noise Voltage*
Vr
1.8
6.0
µVrms
Output Noise Voltage*
Vno
3.0
9.0
µVrms
Rg=0Ω, Vol=0dB BW=IHF-A
Rg=0Ω, BW=IHF-A
VOLOUT=1Vrms
Rg=0Ω, BW=IHF-A
Cross-talk between Channels*
CTC
-80
-70
dB
Cross-talk between Selectors*
CTS
-80
-70
dB
Input Impedance
Rin
32
-
47
62
kΩ
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
Total Harmonic Distortion ratio
THDmix
0.01
0.1
-
%
Maximum Output Voltage
Vomaxmix
2.0
2.5
Vrms
Output Voltage Gain
Gvp
23
-
25
27
dB
Total Harmonic Distortion ratio
PLAYBACK
THDp
0.01
0.1
-
%
Maximum Output Voltage
Vomaxp
2.0
-
-
2.5
Vrms
Noise Voltage in input term*
Vnin
0.7
-
6.0
µVrms
PB MUTE Amount
PBM
-70
dB
ALC Operation Level
REC
ALC
0.5
-
-
0.7
0.9
Vrms
Total Harmonic Distortion ratio
THDr
0.2
1
%
Output Noise Voltage*
Vnor
40
120
µVrms
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
2/18
2010.10 - Rev.A
BD3401KS2,BD3402KS2
Technical Note
Parameter
Symbol
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
Total Harmonic Distortion ratio
MIC
THDmic
%
Maximum Output Voltage
SPECTRUM
ANALYZER
Spectrum Analyzer 1
Output Voltage Gain
Spectrum Analyzer 2
Output Voltage Gain
Surround Gain
V
omaxmic
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
AMS
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 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
-
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
-
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
%
2.0
23
-
Vrms
dB
27
0.1
-
%
2.0
-
-
0.5
-
-
Vrms
µVrms
dB
Vrms
%
6.0
-70
0.9
1
120
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)
90%
90%
90%
90%
Technical Note
tsu
twc
10%
twc
10%
10%
thd
ts
th
tsd
thd
ts1
th1
SI
DATA
LATCH
90%
twd
90%
twd
10%
10%
90%
90%
tw1
90%
DATA
DATA
10%
LATCH
Low
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
京公网安备 11010802033920号
EEWORLD
