355
Audio ICs
Pre-power amplifier for headphone
stereos
BA3612AKV
The BA3612AKV is configured of a pre-amplifier and a headphone amplifier, and contains internal AMS, B.B, AVLS, and
BEEP amplifier functions. Also, this IC can be used in combination with the BA3641FV to enable configuration of record-
ing and playback sets.
Applications
Portable cassette players
Features
1) Low current consumption.
2) Internal AMS function.
3) Internal B.B function.
4) Internal AVLS function.
5) Internal BEEP amplifier.
6) Supports Dolby-B.
7) Supports OCL output.
Absolute maximum ratings (Ta = 25C)
Recommended operating conditions (Ta = 25C)
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Audio ICs BA3612AKV
Block diagram
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Audio ICs BA3612AKV
Pin descriptions
(The pin voltage of VCC = 2.3V , B = 1.3V is the standard value for the measurement circuit under quiescent conditions.
Modes: PWR-ON, TC, FWD, NOR, Mute-OFF, B.B-OFF, AVLS-OFF)
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Audio ICs BA3612AKV
359
Audio ICs BA3612AKV
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Audio ICs BA3612AKV
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Audio ICs BA3612AKV
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Audio ICs BA3612AKV
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Audio ICs BA3612AKV
Electrical characteristics
(unless otherwise noted, B = 1.3V, VCC = 2.3V, f = 1kHz, PreOutRL = 5kΩ, PWROutRL = 16Ω (OCL), Ta = 25C, and
measurement condition pertaining to ripple: VCC and B are common-mode input)
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Audio ICs BA3612AKV
(unless otherwise noted, B = 1.3V, VCC = 2.3V, f = 1kHz, PreOutRL = 5kΩ, PWROutRL = 16Ω (OCL), Ta = 25C,
and measurement condition pertaining to ripple: VCC and B are common-mode input)
365
Audio ICs BA3612AKV
(unless otherwise noted, B = 1.3V, VCC = 2.3V, f = 1kHz, PreOutRL = 5kΩ(OCL), PWROutRL = 16Ω (OCL),
Ta = 25C)
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Audio ICs BA3612AKV
Conditions applied to control pins
(Unless otherwise noted, B = 0.9V, VCC = 1.7V, f = 1kHz, PreOutRL = 5kΩ ,PWROutRL = 16Ω (OCL), Ta = 25C)
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Audio ICs BA3612AKV
Measurement circuit
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Audio ICs BA3612AKV
Electrical characteristic curves
External dimensions (Units: mm)
Appendix
Appendix1-Rev1.0
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
