BA3830F Rohm, BA3830F Datasheet

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BA3830F

Manufacturer Part Number
BA3830F
Description
Manufacturer
Rohm
Datasheet

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Part Number:
BA3830F-E2
Manufacturer:
ROHM/罗姆
Quantity:
20 000
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Part Number:
BA3830F-E2
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4 000
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BA3830F-E2
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Audio Accessory IC Series
Band-pass Filter for
Spectrum Analyzer Indication
BA3835F, BA3830F, BA3834F
Description
Features
Applications
Product lineup
Number of Band
Center frequency of the band
pass filter (Hz)
Power voltage(V)
Output type
Working temperature range(℃)
Package
As BA3835F, BA3830F, and BA3834F contain band pass filters for spectrum analyzer, external mount parts can
be significantly reduced enabling compact unit size and high reliability.
Car audio, mini audio stereo systems, and CD radio cassette players.
1) Built-in band pass filter for spectrum analyzer. BA3835F has 5 bands filters, BA3830F has 6 bands filters, and
2) BA3834F and BA3835 have an integrated multiplexer circuit. Controlled by a microcontroller, detection level is serially
3) BA3830F output for recording indicator. Detection level is parallel output in DC.
4) Support 5V microcomputer bus
5) SOP18 package with few external parts
BA3834F has 7 bands filters.
output with DC level.
Item
TECHNICAL NOTE
105,340,1K,3.4K,10.5K
Serial output
-25 ~ +75
BA3835F
4.5~6.5
SOP18
5
63,150,330,1K,3.3K,10K
Parallel output
-25 ~ +75
BA3830F
SOP18
4.5~8
6
68,170,420,1K,2.4K,
Serial output
5.9K,14.4K
-25 ~ +75
BA3834F
4.5~6.5
SOP18
7
Ver.B Oct.2005

Related parts for BA3830F

BA3830F Summary of contents

Page 1

... Features 1) Built-in band pass filter for spectrum analyzer. BA3835F has 5 bands filters, BA3830F has 6 bands filters, and BA3834F has 7 bands filters. 2) BA3834F and BA3835 have an integrated multiplexer circuit. Controlled by a microcontroller, detection level is serially output with DC level ...

Page 2

... Operating temperature Storage temperature *Reduced by 4.5 mW/°C over 25°C Recommended operating conditions (Ta = 25°C) Parameter Power supply BA3834F,BA3835F voltage BA3830F Electrical characteristics BA3835F (unless otherwise noted, Ta=25℃,V Parameter Symbol Circuit current Maximum output level Output offset voltage Standard output level 1 ...

Page 3

... BA3830F (unless otherwise noted, Ta=25℃,V Parameter Symbol Quiescent current Reference output level V (LEVEL) Max. output level (LEVEL) V olmax Reference output level V (REC LEVEL) Max. output level V olmax (REC LEVEL) Output offset voltage V Center frequency 1 Center frequency 2 Center frequency 3 Center frequency 4 ...

Page 4

Application example (BA3835F) Digital system GND BIASIC 0. 1µ VREF 0. 1µF 2 RREF 100KΩ 3 N.C 4 DIFOUT GND A_C 5 N.C 6 CIN Audio system GND C 7 0.1µF L 10KΩ AIN 56KΩ L+R ...

Page 5

Application example (BA3835F) Digital system GND BIASIC 0. 1µF 1 VREF 0. 1µF 2 RREF 100KΩ 3 N.C 4 DIFOUT GND A_C 5 N.C 6 CIN Audio system GND C 7 0.1µF L 10KΩ AIN 56KΩ L+R G-EQ ...

Page 6

... Application example(BA3830F) Fig.3 6/16 ...

Page 7

... Fig.7 Input vs. output level (BA3830F) Fig.10 Input level vs. output level (BA3834F) Fig.5 Input level vs. output level (BA3835F) Fig.8 Input vs. output level (BA3830F REC mode) 7/16 Fig.6 Output vs. frequency (BA3830F) Fig.9 BPF frequency characteristics (BA3834F) ...

Page 8

Terminal explanation(BA3834F,BA3835F) Terminal Terminal No. name SEL 16 TEST 4, 6 N.C. 13 DIFOUT 7 CIN 8 AIN 17 AOUT Terminal Explanation Output selection control terminal (Refer to the output selection ...

Page 9

Terminal Terminal No. name Setting of band pass filter Connect external adjustments. 3 RREF Reference resister to terminal (for band shift only). For logic voltage 2 VREFC Decoupling capacitor connection terminal For analog voltage 1 BIASC Decoupling capacitor connection terminal ...

Page 10

Output select logic table(BA3835F) SEL A 0 × ×:Don't Care。 Timing chart(BA3835F) AOUT GND × × GND 0 1 105Hz ...

Page 11

... 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. ...

Page 12

Thermal design Perform thermal design, in which there are adequate margins, by taking into account the power dissipation (Pd) in actual states of use. (6) Short circuit between terminals and erroneous mounting Pay attention to the assembly direction of ...

Page 13

... 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. ...

Page 14

... Circuit operation (BA3830F) (1) LINE and REC input circuits The LINE and REC input circuits are configured as differential amplifiers, and the gain can be set to any required value using an external resistor. The input impedance is determined by the external resistor. Fig.17 Fig.18 (2) Bias circuit A bias voltage of VCC /2 is applied to each of the circuits. ...

Page 15

DET circuit This circuit carries out phase detection on the signal selected and amplified by the BPF, and holds it at the peak level configured so that all of the capacitors are internal. The charge that was ...

Page 16

... Order model name selection 品名 包装・フォーミング仕様 Product Name BA3835F BA3830F BA3834F SOP18 <Dimension> 11.2±0 0.15±0.1 0.1 1.27 0.4±0.1 The contents described herein are correct as of October, 2005 The contents described herein are subject to change without notice ...

Page 17

... ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog ...

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