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TDA7454N/a20avai4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER


TDA7454 ,4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIERTDA74544 x 35W HIGH EFFICIENCY QUAD BRIDGECAR RADIO AMPLIFIERHIGH OUTPUT POWER CAPABILITY:MULTIPOWE ..
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THS1206IDA G4 ,12-Bit, 6 MSPS ADC Quad Ch. (Config.), DSP/uP IF, Integ. 16x FIFO, Channel AutoScan, Low Power 32-TSSOP -40 to 85MAXIMUM RATINGS(1)over operating free-air temperature range unless otherwise notedTHS1206DGND to DV ..
THS1206IDAG4 ,12-Bit, 6 MSPS ADC Quad Ch. (Config.), DSP/uP IF, Integ. 16x FIFO, Channel AutoScan, Low Power 32-TSSOP -40 to 85THS1206SLAS217H – MAY 1999 – REVISED JULY 2003#RECOMMENDED OPERATING CONDITIONSPOWER SUPPLY MIN NOM ..
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THS12082IDA ,12 Bit, 8 MSPS ADC with Dual Ch., DSP/uP Interface, 16X FIFO, Channel Autoscan, Low Powerblock diagramAV DVDD DD3.5 V2.5 VREFP1.225 VREFOUTREF1.5 VREFMDATA_AVREFPREFMOV_FLREFIN BVDDSingle- ..
THS1209IDA ,12 Bit, 8 MSPS ADC Dual Ch., DSP/uP Interface, Channel Autoscan, Low Powermaximum ratings” may cause permanent damage to the device. These are stress ratings only, andfuncti ..
THS121 ,HALL SENSOR GaAs ION IMPLANTED PLANAR TYPE HIGH STABILITY CONTROL DIGITAL TACHOMETER CRANK SHAFR POSITION SENSORELECTRICAL CHARACTERISTICS (Ta = 25°C)CHARACTERISTIC SYMBOL TEST CONDITION UNITInternal Resistance ..


TDA7454
4 x 35W HIGH EFFICIENCY QUAD BRIDGE CAR RADIO AMPLIFIER
TDA7454
4 x 35W HIGH EFFICIENCY QUAD BRIDGE
CAR RADIO AMPLIFIER
HIGH OUTPUT POWER CAPABILITY:
4 x 40W/4Ω MAX.
4 x 35W/4Ω EIAJ.
4 x 25W/4Ω @14.4V, 1KHz, 10%
4 x 60W/2Ω MAX.
2Ω DRIVING CAPABILITY
DUAL MODE OPERATING EXTERNALLY
PRESETTABLE: CONVENTIONAL CLASS A-
B MODE, HIGH EFFICIENCY MODE
LOW EXTERNAL COMPONENTS COUNT:
– NO BOOTSTRAP CAPACITORS
– NO EXTERNAL COMPENSATION
– INTERNALLY FIXED GAIN (26dB)
CLIPPING DETECTOR
ST-BY FUNCTION (CMOS COMPATIBLE)
MUTE FUNCTION (CMOS COMPATIBLE)
AUTOMUTE AT MINIMUM SUPPLY
VOLTAGE DETECTION
LOW RADIATION
Protections:

OUPUT SHORT CIRCUIT
TO GND; TO VS; ACROSS THE LOAD
3 STEPS OVERRATING CHIP TEMPERA-
TURE WITH THERMAL WARNING
LOAD DUMP VOLTAGE
FORTUITOUS OPEN GND
LOUDSPEAKER DC CURRENT
ESD
DESCRIPTION

The TDA7454 is a new BCD technology QUAD
BRIDGE type of car radio amplifier in Flexiwatt25
package specially intended for car radio applications.
Among the features, its superior efficiency per-
formance coming from the internal exclusive
structure, makes it the most suitable device to
simplify the thermal management in high power
sets. The dissipated output power under average
listening condition is in fact reduced up to 50%
when compared to the level provided by conven-
tional class AB solutions.
BLOCK & APPLICATION DIAGRAM
ABSOLUTE MAXIMUM RATINGS
THERMAL DATA
PIN CONNECTION (Top view)
TDA7454

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ELECTRICAL CHARACTERISTICS (Refer to the test circuit VS = 14.4V; RL = 4Ω; f = 1KHz;
Tamb = 25°C, unless otherwise specified
(*) Saturated square wave output.
TDA7454

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Figure 1: Standard Test and Application Circuit.
TDA7454

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Figure 2: P.C.B. and components layout of fig. 1 circuit. (1.25 :1 scale)
TDA7454

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Figure 3: Quiescent Current vs. Supply Voltage
Figure 4: Output Power vs. Supply Voltage
9 10 11 12 13 14 15 16 17 18
Vs (V) Po (W)
Figure 5: Max. Output Power vs. Supply Voltage
Figure 6: Output Power vs. Supply Voltage
9 10 11 12 13 14 15 16
Vs (V) Po (W)
Figure 7: Max. Output Power vs. Supply Voltage
10
Po (W)
0.1 THD (%)
Figure 8: THD vs. Output Power
TDA7454

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10Po (W)0.1 THD (%)
Figure 9: THD vs. Output Power
Figure 10: Muting Attenuation vs. Vpin 22
Figure 11: THD vs. Frequency
100 1000 10000
f (Hz)
100 SVR (dB)
Figure 12: Supply Voltage Rejection vs. Fre-

quency
Figure 13: Cross-Talk vs. Frequency

0.1 1 10
Po (W) Ptot (W)n (%)
Figure 14: Power Dissipation and Efficiency vs.

Output Power
TDA7454

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ic,good price


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