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PDF BD3401KS2 Data sheet ( Hoja de datos )
| Número de pieza | BD3401KS2 | |
| Descripción | Single Power Supply Sound Processors | |
| Fabricantes | ROHM Semiconductor | |
| Logotipo |  |
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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
Equalizer
Parameter
Volume
Cassette Recording/Playing Amplifier
Karaoke
Microphone Input
Subwoofer Output
Output for Spectrum Analyzer
Surround
Bass Boost
Package
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
●Absolute maximum ratings (Ta=25℃)
Items
Symbol
Ratings
Power Supply Voltage
Vcc 10
Vdd 6
Power Dissipation
Pd 1200*
Input Voltage Range
Vin GND-0.3 to VCC+0.3
Operating Temperature Range
Topr
-25 to +75
Storage Temperature Range Tstg -55 to +125
* 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
V
mW
V
℃
℃
Unit
V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
1/18
2010.10 - Rev.A
1 page  
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)
9 0%
tsu
twc
90%
twc
90%
10%
10%
90%
10 %
Technical Note
SI
DATA
LATCH
thd ts th tsd thd ts1 th1
90% twd 90%
DATA
10%
twd
10%
90%
DATA
Fig.1
90% tw1 90%
10% LATCH
Low
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
Symbol
twc
twd
tw1
tsd
thd
ts1
th1
ts
th
Limits
Unit
Min Typ. Max
2.0 -
- µS
2.0 -
- µS
2.0 -
- µS
1.0 -
- µS
1.0 -
- µS
1.0 -
- µS
1.0 -
- µS
1.0 -
- µS
1.0 -
- µS
2. Voltage Conditions for Control Signals
Parameter
Symbol
“H” Input Voltage
“L” Input Voltage
Vcc=8 to 9.5V
Vcc=8 to 9.5V
Limits
Unit
Min Typ Max
2.2 - 5.5 V
0 - 1.0 V
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
5/18
2010.10 - Rev.A
5 Page 
BD3401KS2,BD3402KS2
Technical Note
●Pin description
(BD3402KS2)
Pin No. Pin Name
1 D1
Description
1ch input pin D
2 D2 2ch input pin D
3 E1 1ch input pin E
4 E2 2ch input pin E
5 PBNF2 2ch PB filter setting pin
6 PBOUT2 2ch PB output pin
7 PBOUT1 1ch PB output pin
8 PBNF1 1ch PB filter setting pin
9 NC Non Connection
10 NC Non Connection
11 TAPE 1 1ch TAPE input pin
12 TAPE 2 2ch TAPE input pin
13 RECNF2 2ch REC filter setting pin
14 RECOUT2 2ch REC output pin
15 RECOUT1 1ch REC output pin
16 RECNF1 1ch REC filter setting pin
17 ALC ALC time constant setting pin
18 SC Serial clock input pin
19 SI Serial data input pin
20
VDD
Digital power supply pin
21
GND
Ground pin
22
VCC
Analog power supply pin
23 NC Non Connection
24 FILTER 1/2 VCC pin
25 NC Non Connection
26 NC Non Connection
27 NC Non Connection
28 NC Non Connection
29 NC Non Connection
30 NC Non Connection
31 NC Non Connection
32 VOL OUT2 2ch output pin
Pin No. Pin Name
Description
33 VOL OUT1 1ch output pin
34 NC Non Connection
35 NC Non Connection
36
VIN1
1ch volume input pin
37 TONE OUT1 1ch tone output pin
38
VIN2
2ch volume input pin
39 TONE OUT2 2ch tone output pin
40 NC Non Connection
41
BNF2
2ch bass filter setting pin
42 BOUT2 2ch bass filter setting pin
43 BOUT1 1ch bass filter setting pin
44
BNF1
1ch bass filter setting pin
45 NC Non Connection
46 NC Non Connection
47 NC Non Connection
48 NC Non Connection
49
TNF2
2ch treble filter setting pin
50
TNF1
1ch treble filter setting pin
51 NC Non Connection
52 NC Non Connection
53 LINEOUT2 2chLINE output pin
54 LINEOUT1 1chLINE output pin
55 NC Non Connection
56 NC Non Connection
57 NC Non Connection
58 NC Non Connection
59 A1 1ch input pin A
60 A2 2ch input pin A
61 B1 1ch input pin B
62 B2 2ch input pin B
63 C1 1ch input pin C
64 C2 2ch input pin C
www.rohm.com
© 2010 ROHM Co., Ltd. All rights reserved.
11/18
2010.10 - Rev.A
11 Page | ||
| Páginas | Total 21 Páginas | |
| PDF Descargar | [ Datasheet BD3401KS2.PDF ] | |
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