TDA7715
3 Band Car Audio Processor 64Pin LQFP Tray
The is a high performance signal processor specifically designed for car radio applications.
The device includes a high performance audio processor with fully integrated audio filters and new soft-step architecture.
The digital control allows programming in a wide range of filter characteristics.
**Key Features**
- .
- Input multiplexer
- .
- QD0 to QD3: quasi-differential stereo input
- .
- SE0 to SE4: stereo single-ended input
- .
- Loudness
- .
- 2nd order frequency response
- .
- Programmable center frequency 400 Hz/800 Hz/2400 Hz
- .
- 15 dB with 1 dB steps
- .
- Selectable high frequency boost
- .
- Selectable flat-mode constant attenuation
- .
- Volume
- .
- +23 dB to –23 dB with 1 dB step resolution
- .
- Soft-step control with programmable blend times
- .
- Bass
- .
- 2nd order frequency response
- .
- Programmable center frequency 60/70/80/100//110/120/130/150 Hz
- .
- Q programmable 1.0/1.25/1.5/2.0
- .
- DC gain programmable
- .
- -15 to 15 dB range with 1 dB resolution
- .
- Soft-step control with programmable blend times
- .
- Middle
- .
- 2nd order frequency response
- .
- Programmable center frequency 500 Hz/1 kHz/1.5 kHz/2 kHz
- .
- Q programmable 1.0/2.0
- .
- -15 to 15 dB range with 1 dB resolution
- .
- Soft-step control with programmable blend times
- .
- Treble
- .
- 2nd order frequency response
- .
- Center frequency programmable in 4 steps 10/12.5 /15/17.5 kHz
- .
- -15 to 15 dB range with 1 dB resolution
- .
- Soft-step control with programmable blend times
- .
- High pass filter
- .
- 2nd order frequency response
- .
- Programmable cut off frequency 50/60/80/100/120/150/180/220 Hz
- .
- Low pass filter
- .
- 2nd order low pass filter
- .
- Programmable cut off frequency
- .
- 50 Hz/60 Hz/80 Hz/100 Hz/120 Hz
- .
- Speaker
- .
- 6 independent soft-step speaker controls
- .
- +23 dB to –79 dB with 1 dB steps
- .
- Soft-step control with programmable blend times
- .
- Output driver
- .
- Four dedicated outputs for an internal on-board power amplifier.
- .
- Six 3.55 VRMS line-driver outputs for an external remote power amplifier
- .
- Mute functions
- .
- Direct mute
- .
- Main/Sub channel: digitally controlled soft-mute with 4 programmable mute-times
- .
- 0.5 ms/4 ms/8 ms/16 ms
- .
- Speaker: digitally controlled soft-mute with 4 programmable mute-times 4 ms/8 ms/32 ms/64 ms
- .
- Spectrum analyzer
- .
- 7-band, fully integrated 2nd order band-pass filter with programmable filter quality for different visual behavior
- .
- Selectable In-gain 0/2/4/6dB
- .
- AC coupling
- .
- Three AC-coupling input
- .
- One AC-coupling output
- .
- Offset detection
- .
- Offset voltage detection circuit for on-board power amplifier failure diagnosis
