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TEA7532 датащи(PDF) 13 Page - STMicroelectronics

номер детали TEA7532
подробное описание детали  MONITOR AMPLIFIER
PDF  16 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TEA7532 датащи(HTML) 13 Page - STMicroelectronics

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- ”B” Mode
This allows higher voltage operation, but at a lower
supply current.
Loudspeakerimpedancerecommended value : 25
Ω.
Maximum gain available between earphone input
and loudspeaker output : 32 - 6 = 26 dB.
PIN 11 : Vref : INTERNAL REFERENCE
Output which provides an internally regulated refer-
ence voltage.
Vref = 1.1 V typical
MAXIMUM AVAILABLE CURRENT : 5
µA
Figure 23.
PIN 13 : GROUND
PIN 14-15 : GAIN ADJUSTMENT INPUTS
These pins are used to adjust the loudspeaker am-
plifier gain. Four steps of 6 dB/step are available
(pin open circuit = high level).
PIN 16 : LOUDSPEAKER MUTING.
This pin is used to mute the loudspeaker. Pin open-
circuit : high level = loudspeaker muted.
Pin low level : louspeaker enabled (see connection
of pins 14 and 15).
PG0
PG1
1
1
Gmax
1
0
Gmax - <0> 6 dB
0
1
Gmax - 12 dB
0
0
Gmax - 18 dB
TEA7532
13/16



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