ST TDA7417

The TDA7417 is an high performance signal processor specifically designed for car radio applications with fully integrated audio filters. The digital control allows a full programming of the audioprocessor in a wide range of filter characteristics. By using BICMOS-process low distortion and low noise are obtained.

• Input Multiplexer
• QD: quasi-differential stereo inputs
• FD: full-differential stereo inputs
• Mono: Mono input
• SE1: stereo single-ended input
• SE2: stereo single-ended input
• In-Gain 0 to 15dB, 1dB step
• internal offset-cancellation (AutoZero)
• IN/OUT control Selectable full-differential stereo inputs or Bass output
• 2nd order frequency response
• programmable center frequency (400Hz/800Hz/2400Hz)
• 15dB with 1dB steps
• soft-step control with programmable blend times
• selectable low & high frequency boost
• +15dB to -79dB with 1dB step resolution
• soft-step control with programmable blend times
• multi-step control
• Bass 2nd order frequency response center frequency programmable in 4 steps (60Hz/80Hz/100Hz/200Hz)
• Q programmable 1.0/1.25/1.5/2.0
• DC gain programmable -15 to 15dB with 1dB resolution
• soft-step control with programmable blend times
• Treble 2nd order frequency response
• center frequency programmable in 4 steps (10KHz/12.5KHz/15KHz/17.5KHz)
• -15 to 15dB with 1dB resolution
• High pass – 2nd order frequency response center frequency programmable in 3 steps (80Hz/120Hz/160Hz)
• independent soft step speaker controls, +15dB to -79dB with 1dB steps
• Independent programmable mix input with 50% mixing ratio for front speakers
• direct mute
• multi-step control
• Mute Functions digitally controlled SoftMute with 3 programmable mute-times (0.48ms/0.96ms/123ms)

• Automotive radio applications