TEA7532 ST Microelectronics, Inc., TEA7532 Datasheet - Page 13

• Manufacturer Part Number: TEA7532
• Description: Monitor Amplifier With Anti-larsen Function And Adjustment (full Duplex)
• Manufacturer: ST Microelectronics, Inc.

- "B" Mode
This allows higher voltage operation, but at a lower
supply current.
Loudspeaker impedance recommended value : 25 .
Maximum gain available between earphone input
and loudspeaker output : 32 - 6 = 26 dB.
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).
PIN 11 : Vref : INTERNAL REFERENCE
Output which provides an internally regulated refer-
ence voltage.
Vref = 1.1 V typical
MAXIMUM AVAILABLE CURRENT : 5 A
PG0
1
1
0
0
PG1
1
0
1
0
Gmax - <0> 6 dB
Gmax - 12 dB
Gmax - 18 dB
Gmax
TEA7532
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