TDA8417 Datasheet, PDF (7/20 Pages) NXP Semiconductors – TV and VTR stereo/dual sound processor with integrated filters and I2C-bus control

Philips Semiconductors
TV and VTR stereo/dual sound processor
with integrated filters and I²C-bus control
Preliminary specification
TDA8417
Power-on reset
The following actions are carried out by the internal power-on reset when it is active:
• The AF outputs are muted
• The identification circuit is deactivated (mono)
• The control ports (C1 and C2) are set LOW
• The I²C-bus transceiver is initialized
When the power-on reset becomes passive the following occurs:
• The AF outputs are kept in the mute state until the contents of the switch register are changed from (00) hex via the
I²C-bus
• The identification circuit is activated
• The control ports are LOW until the mute and control port register is changed (CR bits 10, 11, 20 and 21)
• The I²C-bus transceiver is activated
September 1989
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