ba3406af ROHM Co. Ltd., ba3406af Datasheet

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ba3406af

Manufacturer Part Number
ba3406af
Description
Dual Preamplifier With Mute Function
Manufacturer
ROHM Co. Ltd.
Datasheet

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Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ba3406af-T1
Manufacturer:
ROHM/罗姆
Quantity:
20 000
The BA3406AF is a multi-function dual-channel preamplifier with a built-in mute circuit and a time-constant switching
circuit for use with metal tape. The output circuits have diodes, and can be connected to other circuits in parallel, which
eliminates the need for switches. The mute circuit is independent of the preamplifier block, and can be used to mute the
whole system.
FApplications
Car stereos, radio cassette players, and tape decks
FFeatures
1) Wide operating power supply voltage range (6V to
2) Low noise (V
3) High open loop voltage gain (G
4) Two channels on one chip, providing good channel
5) Emitter-follower outputs for low output impedance.
6) Built-in switching circuit for use with metal tape.
7) Built-in mute circuit.
FBlock diagram
226
Dual preamplifier with mute function
BA3406AF
Audio ICs
14V).
1 and 15).
balance.
NIN
= 1.0 V
rms
Typ.).
VO
= 80dB Typ. at pins
10) The resistor for the CR circuit that sets the metal-
8) Mute and metal-tape circuits are independent from
9) The output circuits have diodes to prevent current
the preamplifier circuit to allow greater design free-
dom.
backflow and enable parallel connection to other
circuits.
tape circuit time constant to 70 s is on the chip. Set-
ting the time constant only requires addition of an
external capacitor.

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ba3406af Summary of contents

Page 1

... Dual preamplifier with mute function BA3406AF The BA3406AF is a multi-function dual-channel preamplifier with a built-in mute circuit and a time-constant switching circuit for use with metal tape. The output circuits have diodes, and can be connected to other circuits in parallel, which eliminates the need for switches. The mute circuit is independent of the preamplifier block, and can be used to mute the whole system ...

Page 2

... Audio ICs FInternal circuit configuration FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) FElectrical characteristics (unless otherwise noted 25_C and V BA3406AF = 8V) CC 227 ...

Page 3

... Audio ICs FMeasurement circuit FApplication example 228 BA3406AF ...

Page 4

... Audio ICs FElectrical characteristics curves BA3406AF 229 ...

Page 5

... Audio ICs FExternal dimensions (Units: mm) 230 BA3406AF ...

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