tea6300t NXP Semiconductors, tea6300t Datasheet - Page 5

• Manufacturer Part Number: tea6300t
• Description: Sound Fader Control Circuit
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FUNCTIONAL DESCRIPTION
The source selector selects three stereo channels RF part (AM/FM), recorder and compact disc. As the outputs of the
source selector and the inputs of the main control part are available, additional circuits such as compander and equalizer
systems may be inserted into the signal path. The AC signal setting is performed by resistor chains in combination with
multi-input operational amplifiers. The advantage of this principle is the combination of low noise, low distortion and a
high dynamic range for the circuit.
The separate volume controls of the left and the right channel facilitate correct balance control. The range and balance
control is software programmable.
Because the TEA6300 has four outputs a low-level fader is included. The fader control is independent of the volume
control and an extra mute position is built in for the front, the rear or for all channels. The last function may be used for
muting during preset selection. An extra pop suppression circuit is built in for pop-free switching on and off. As all
switching and control functions are controllable via the two-wire I
microcomputer and the TEA6300 is required.
The on-chip power-on-reset sets the TEA6300 to the general mute mode.
RATINGS
Limiting values in accordance with the Absolute Maximum System (IEC 134)
May 1990
V
P
T
T
stg
amb
CC
tot
Sound fader control circuit
SYMBOL
Supply voltage (pin 27-18)
Maximum power dissipation
Storage temperature range
Operating ambient temperature range
PARAMETER
5
2
C-bus, no external interface between the
55
40
MIN.
16
1
150
85
MAX.
Product specification
TEA6300T
TEA6300
V
W
C
C
UNIT