TDA7419-TDA7419TR Fast Delivery |IC PHOENIX CO.,LIMITED

TDA7419TR ,3 BAND CAR AUDIO PROCESSORAbsolute Maximum RatingsSymbol Parameter Value UnitV Operating Supply Voltage 10.5 VsT Operating Te ..
TDA7420 ,MULTIFUNCTION AUDIO PROCESSORTDA7420®MULTIFUNCTION AUDIO PROCESSORCASSETTE PREAMPLIFIER:FORWARD/REVERSE INPUTS GROUNDCOMPATIBLEI ..
TDA7421 ,AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONSABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitTamb Operating Temperature Range -40 to 85 °CTst ..
TDA7421N ,AM/FM TUNER FOR CAR RADIO AND HI-FI APPLICATIONSAPPLICATIONS■ AM DOUBLE CONVERSION ARCHITECTURETQFP64■ AM/FM STATION DETECTOR AND DIGITAL ORDERING ..
TDA7427AD ,AM-FM RADIO FREQUENCY SINTHESIZER AND IF COUNTERELECTRICAL CHARACTERISTICS (Tamb = 25°C; VDD1 = 5V; VDD2 = 10V; fOSC = 4MHz; unless other-wise spec ..
TDA7427AD1 ,AM-FM RADIO FREQUENCY SINTHESIZER AND IF COUNTERABSOLUTE MAXIMUM RATINGSSymbol Parameter Value UnitV Supply Voltage - 0.3 to + 7 VDD1V Supply Volta ..
THN6501F , SiGe NPN Transistor
THN6501S , NPN SiGe RF TRANSISTOR
THS0842 ,8-Bit, 40 MSPS ADC Dual Ch. (Config.), Dual Simultaneous S&H, Low Power, PowerDownblock diagramAVDDDRV DVDD DDCOUTCLK Timing CircuitryCOUTI +Sample& HoldI –DA(7–0)3-State8 BITBUSMUX ..
THS0842IPFB ,8-Bit, 40 MSPS ADC Dual Ch. (Config.), Dual Simultaneous S&H, Low Power, PowerDownTHS0842 DUAL-INPUT, 8-BIT, 40 MSPS LOW-POWER ANALOG-TO-DIGITAL CONVERTERWITH SINGLE OR DUAL PARALLE ..
THS10064 ,10-Bit, 6 MSPS ADC Quad Ch. (Config.), DSP/uP Interface, Integ. 16x FIFO, Ch. AutoScan, Low PowerFEATURES DESCRIPTION* High-Speed 6 MSPS ADCThe THS10064 is a CMOS, low-power, 10-bit, 6 MSPS* 4 Ana ..
THS10064CDA ,10-Bit, 6 MSPS ADC Quad Ch. (Config.), DSP/uP Interface, Integ. 16x FIFO, Ch. AutoScan, Low PowerMAXIMUM RATINGS(1)over operating free-air temperature range unless otherwise notedTHS10064DGND to D ..

TDA7419-TDA7419TR
3 BAND CAR AUDIO PROCESSOR
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TDA7419
March 2005 FEATURES 4 STEREO INPUTS SOFT STEP VOLUME BASS, MIDDLE, TREBLE AND LOUDNESS DIRECT MUTE AND SOFTMUTE FOUR INDEPENDENT SPEAKER OUTPUTS SUB WOOFER OUTPUT SOFT STEP SPEAKER/SUBWOOFER
CONTROL 7 BANDS SPECTRUM ANALYZER DIGITAL CONTROL:2 C-BUS INTERFACE DESCRIPTION
The TDA7419 is a high performance signal proces-
sor specifically designed for car radio applications.
The device includes a high performance audiopro-
cessor with fully integrated audio filters. The digital
control allows programming in a wide range of filter
characteristics. By the use of BICMOS-process and
linear signal processing low distortion and low noise
are obtained.
3 BAND CAR AUDIO PROCESSOR
Figure 2. Block Diagram
Rev. 2
TDA7419
Table 2. Supply
Table 3. Thermal Data
Table 4. Absolute Maximum Ratings
ESD
All pins are protected against ESD according to the MIL883 standard.
Figure 3. Pin connection (Top view)
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TDA7419
Table 5. Pin Description
TDA7419 Audio Processor Features:
Input Multiplexer QD / SE: quasi-differential stereo inputs, with selectable single-ended mode
SE1: stereo single-ended input
SE2: stereo single-ended input
SE3 / AC2IN: stereo single-ended input / DSO filter input
In-Gain 0 to 15dB, 1dB steps
internal offset-cancellation (AutoZero)
separate second source-selector
Mixing stage mixable to front speaker-outputs
Loudness 2nd order frequency response
programmable center frequency (400Hz/800Hz/2400Hz)
15dB with 1dB steps
selectable low & high frequency boost
selectable flat-mode (constant attenuation)
Volume +15dB to -79dB with 1dB step resolution
soft-step control with programmable blend times
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 range with 1dB resolution
Middle 2nd order frequency response
center frequency programmable in 4 steps (500Hz/1KHz/1.5KHz/2.5KHz)
Q programmable 0.5/0.75/1.0/1.25
DC gain programmable
-15 to 15dB range with 1dB resolution
Treble 2nd order frequency response
center frequency programmable in 4 steps (10KHz/12.5KHz/15KHz/17.5KHz)
-15 to 15dB range with 1dB resolution
Spectrum analyzer seven bandpass filters
2nd order frequency response
programmable Q factor for different visual appearance
analog output
controlled by external serial clock
Speaker 4 independent soft step speaker controls, +15dB to -79dB with 1dB steps
Independent programmable mix input with 50% mixing ratio for front speakers
direct mute
Subwoofer 2nd order low pass filter with programmable cut off frequency
single-ended mono output
independent soft step level control, +15dB to -79dB with 1dB steps
Mute Functions direct mute
digitally controlled SoftMute with 3 programmable mute-times(0.48ms/0.96ms/
123ms)
Effect gain effect, or high pass effect with fixed external components
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TDA7419 ELECTRICAL CHARACTERISTICS
Table 6. Electrical Characteristcs
VS = 8.5V; Tamb = 25°C; RL= 10kΩ ; all gains = 0dB; f = 1kHz; unless otherwise specified
TDA7419
Table 6. Electrical Characteristcs (continued)
VS = 8.5V; Tamb = 25°C; RL= 10kΩ ; all gains = 0dB; f = 1kHz; unless otherwise specified
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TDA7419
Table 6. Electrical Characteristcs (continued)
VS = 8.5V; Tamb = 25°C; RL= 10kΩ ; all gains = 0dB; f = 1kHz; unless otherwise specified
TDA7419 DESCRIPTION OF THE AUDIOPROCESSOR
5.1 Input stages
In the basic configuration, one stereo quasi-differential and three (two in case of DSO applications) single
ended stereo inputs are available.
5.1.1 Quasi-differential stereo Input (QD)
The QD input is implemented as a buffered quasi-differential stereo stage with 100k input-impedance at
each input. The attenuation is fixed to -3dB in order to adapt the incoming signal level.
5.1.2 Single-ended stereo input (SE1, SE2, SE3/AC2IN)
The input-impedance at each input is 100k and the attenuation is fixed to -3dB for incoming signals. The
input for SE3 is also configurable as part of the interface for external filters in DSO applications (AC2IN)
Figure 4. Input Stage
Table 6. Electrical Characteristcs (continued)
VS = 8.5V; Tamb = 25°C; RL= 10kΩ ; all gains = 0dB; f = 1kHz; unless otherwise specified
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TDA7419
5.2 AutoZero
The AutoZero allows a reduction of the number of pins as well as external components by canceling any
offset generated by or before the In-Gain-stage (Please notice that externally generated offsets, e.g. gen-
erated through the leakage current of the coupling capacitors, are not canceled).
The auto-zeroing is started every time the input source is changed and needs max. 0.3ms for the align-
ment. To avoid audible clicks the Audio processor is muted before the loudness stage during this time.
The AutoZero feature is only present in the main signal-path.
5.2.1 AutoZero-Remain
In some cases, for example if the P is executing a refresh cycle of the IIC-Bus-programming, it is not use-
ful to start a new AutoZero-action because no new source is selected and an undesired mute would ap-
pear at the outputs. For such applications, it can be switched in the AutoZero-Remain-Mode (Bit 6 of the
subaddress-byte). If this bit is set to high, the AutoZero will not be invoked and the old adjustment-value
remains.
5.3 Loudness
There are four parameters programmable in the loudness stage:
5.3.1 Attenuation
Figure 5 shows the attenuation as a function of frequency at fP = 400Hz
Figure 5. Loudness Attenuation @ fP = 400Hz.
TDA7419
5.3.2 Peakr Frequency
Figure 6 shows the three possible peak-frequencies 400Hz , 800Hz and 2.4kHz.
Figure 6. Loudness Center frequencies @ Attn. = 15dB
5.3.3 Low & High Frequency Boost
Figure 7 shows the different Loudness-shapes in low & high frequency boost.
Figure 7. Loudness Attenuation , fC = 2.4KHz
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TDA7419
5.3.4 Flat Mode
In flat mode the loudness stage works as a 0dB to -15dB attenuator.
5.4 SoftMute
The digitally controlled SoftMute stage allows muting/demuting the signal with a I2 C-bus programmable
slope. The mute process can either be activated by the SoftMute pin or by the I2 C-bus. This slope is real-
ized in a special S-shaped curve to mute slow in the critical regions (see Figure 8).
For timing purposes the Bit0 of the I2C-bus output register is set to 1 from the start of muting until the end
of demuting.
Figure 8. Sofmute Timing
Note: Please notice that a started Mute-action is always terminated and could not be interrupted by a change of the mute -signal
5.5 SoftStep-Volume
When the volume-level is changed audible clicks could appear at the output. The root cause of those clicks
could either be a DC-Offset before the volume-stage or the sudden change of the envelope of the audi-
osignal. With the SoftStep feature both kinds of clicks could be reduced to a minimum and are no more
audible. The blend-time from one step to the next is programmable in four steps.
Figure 9. SoftStep Timing
Note: For steps more than 0.5dB the SoftStep mode should be deactivated because it could generate a hard 1dB step during the blend-time.
TDA7419
5.6 Bass
There are four parameters programmable in the bass stage:
5.6.1 Attenuation
Figure 9 shows the attenuation as a function of frequency at a center frequency of 80Hz.
Figure 10. Bass Control @ fC = 80Hz, Q = 1
5.6.2 Center Frequency
Figure 11 shows the four possible center frequencies 60, 80, 100 and 200Hz.
Figure 11. Bass center Frequencies @ Gain = 15dB, Q = 1
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TDA7419
5.6.3 Quality Factors
Figure 12 shows the four possible quality factors 1, 1.25, 1.5 and 2.
Figure 12. Bass Quality factors @ Gain = 14dB, fC = 80Hz
5.6.4 DC Mode
It is used for cut only for shelving filter. In this mode the DC-gain is increased by 4.4dB. Inaddition the pro-
grammed center frequency and quality factor is decreased by 25% which can be used to reach alternative cen-
ter frequencies or quality factors.
Figure 13. Bass normal and DC Mode @ Gain = 14dB, fC = 80Hz
Note: The center frequency, Q and DC-mode can be set fully independently.
TDA7419
5.7 Middle
There are three parameters programmable in the middle stage:
5.7.1 Attenuation
Figure 14 shows the attenuation as a function of frequency at a center frequency of 1kHz.
Figure 14. Middle Control @ fC = 1 kHz, Q = 1
5.7.2 Center Frequency
Figure 14 shows the four possible center frequencies 500Hz, 1kHz, 1.5kHz and 2.5kHz.
Figure 15. Middle center Frequencies @ Gain = 14dB, Q = 1
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TDA7419
5.7.3 Quality Factors
Figure 16 shows the four possible quality factors 0.5, 0.75, 1 and 1.25.
Figure 16. Middle Quality factors @ Gain = 14dB, fc = 1kHz
5.8 Treble
There are two parameters programmable in the treble stage:
5.8.1 Attenuation
Figure 16 shows the attenuation as a function of frequency at a center frequency of 17.5kHz.
Figure 17. Treble Control @ fC = 17.5kHz

Partno	Mfg	Dc	Qty	Available	Descript
TDA7419	ST	N/a	850	avai	3 BAND CAR AUDIO PROCESSOR
TDA7419TR	ST	N/a	9827	avai	3 BAND CAR AUDIO PROCESSOR