tda8421 NXP Semiconductors, tda8421 Datasheet - Page 4

• Manufacturer Part Number: tda8421
• Description: Hi-fi Stereo Audio Processor; I2c Bus
• Manufacturer: NXP Semiconductors

Philips Semiconductors
PINNING
FUNCTIONAL DESCRIPTION
Input selector
The input to channel 1 (CH1) and channel 2 (CH2) is determined by the input selector. The selection is made from the
following AF input signals:
Where IN1 is an internal input signal and IN2 an external input signal.
Mode selector
For each channel (CH1 and CH2) there is a mode selector which selects between stereo, sound A and sound B in the
event of bilingual transmission. Both mode selectors can be controlled independently.
May 1988
IN1 L (pin 26); IN1 R (pin 28) or
IN2 L (pin 1); IN2 R (pin 3)
Hi-fi stereo audio processor; I
2
Fig.2 Pinning diagram.
C bus
4
Product specification
TDA8421