on November 8th 103

TDA7498E vs. TPA3116D2: Which Amplifier Stands Out?

In the world of digital audio amplification, choosing the right amplifier can significantly elevate sound quality and system efficiency. Two standout models, the TDA7498E and TPA3116D2, cater to diverse audio needs, from enhancing home theater setups to powering professional speakers. This article provides an in-depth analysis of these amplifiers, examining their unique features, maximum ratings, thermal management, and technical specifications. By comparing their strengths and limitations, this guide aims to assist you in making informed decisions and aligning amplifier choices with specific performance requirements and environmental conditions.

Catalog

Overview of the TDA7498E

The TDA7498E, a highly advanced Class-D audio amplifier, stands out for its dual bridge-tied load (BTL) configuration and compatibility with a single power source. Such features make it a superb option for home audio systems and active speaker setups. Utilizing a highly efficient 36-pin PowerSSO package, which includes an exposed pad, the design effectively manages heat. This aspect is basic for sustaining performance and extending lifespan over time.

The amplifier incorporates state-of-the-art technology focused on reducing energy loss, a consideration that not only lowers operational expenses but also lessens environmental burdens. The use of a single power source streamlines the structural design, ensuring ease of assembly and bolstering reliability. You can value the amplifier for its harmonious balance between power efficiency and sound quality, reflecting its impressive engineering prowess.

In modern audio installations, space can be a dangerous constraint. The TDA7498E, with its compact yet powerful design, adeptly tackles these spatial limitations. Its efficiency results in cooler operation and decreases the demand for extensive cooling systems. You can understand the importance of maintaining audio consistency across diverse scenarios. This amplifier meets the demand for reliability effectively, providing continuous high-quality sound output regardless of conditions.

Overview of the TPA3116D2

The TPA3116D2 is recognized as a tremendously efficient stereo digital amplifier, which has played a key role in advancing audio technology by powering speakers up to 100W at 2Ω in a mono setup. This amplifier is crafted for greater adaptability, showcasing its versatility by delivering 2 × 15 W output without needing an external heatsink on a single-layer PCB. For scenarios requiring enhanced power, it can effectively supply 2 × 50 W at 4Ω with minimal heatsink demands. This flexibility caters to various audio amplification needs, spanning from consumer electronics to professional audio equipment.

A striking attribute of the TPA3116D2 is its functionality in both master and slave modes. It utilizes an innovative oscillator/PLL system aimed at reducing AM interference, an obstacle that commonly impacts sound quality and diminishes auditory pleasure. This sophisticated system also supports the synchronization of multiple units, a beneficial feature for intricate audio setups where clean timing is essential. You can discover that this synchronization capability markedly boosts audio performance by ensuring even sound distribution across all speakers.

Safety and dependability are threads woven into the fabric of the TPA3116D2. It integrates comprehensive fault protection features such as short-circuit, thermal, and voltage protections. These precautions contribute to a long lifespan and steadfast reliability, rendering the amplifier resistant to potential overloads. You can value these protections as they offer reassurance, knowing components are safeguarded from common electrical hazards that might occur during operation.

Maximum Ratings for TDA7498E and TPA3116D2

TDA7498E Absolute Maximum Ratings

Symbol	Parameter	Value	Unit
VCC	DC supply voltage for pins PVCCA, PVCCB, SVCC	45	V
VI	Voltage limits for input pins STBY, MUTE, INNA, INPA, INNB, INPB, GAIN, MODE	-0.3 to 4.0	V
Tj	Operating junction temperature	0 to 150	°C
Top	Operating ambient temperature	0 to 70	°C
Tstg	Storage temperature	-40 to 150	°C

TPA3116D2 Absolute Maximum Ratings

Parameter	Pins/Signals	Min	Max	Unit
Supply voltage, VCC	PVCC, AVCC	–0.3	30	V
Input voltage, VI	INPL, INNL, INPR, INNR	–0.3	6.3	V
PLIMIT, GAIN / SLV, SYNC		–0.3	GVDD+0.3	V
AM0, AM1, AM2, MUTE, SDZ, MODSEL		–0.3	PVCC+0.3	V
Slew rate, maximum(2)	AM0, AM1, AM2, MUTE, SDZ, MODSEL	10		V/ms
Operating free-air temperature, TA		–40	85	°C
Operating junction temperature, TJ		–40	150	°C
Storage temperature, Tstg		–40	125	°C

Thermal Efficiency in the TDA7498E and TPA3116D2

TDA7498E Thermal Information

Symbol	Parameter	Condition	Min	Typ	Max	Unit
Iq	Total quiescent current	No LC filter, no load	-	60	-	mA
IqSTBY	Quiescent current in standby	-	-	1	-	µA
VOS	Output offset voltage	Vi = 0, Av = 23.6 dB, no load	-20	-	20	mV
IOCP	Overcurrent protection threshold	RL = 0 Ω	10	11	14	A
Tj	Junction temperature at thermal shutdown	-	140	150	160	°C
Ri	Input resistance	Differential input	69	-	-	kΩ
VUVP	Undervoltage protection threshold	-	-	-	8	V
RdsON	Power transistor on-resistance	High side	-	0.15	-	Ω
		Low side	-	0.15	-	Ω
Po	Output power	THD = 10%	-	160	-	W
		THD = 1%	-	125	-	W
Po	Parallel BTL (mono) output power	RL = 3 Ω, Vcc = 36 V, THD = 10%	-	220	-	W
		THD = 1%	-	170	-	W
η	Efficiency	-	-	85	-	%
THD	Total harmonic distortion	Po = 1 W	-	0.05	-	%
GV	Closed-loop gain	GAIN < 0.25*VDD	-	23.8	-	dB
		0.25VDD < GAIN < 0.5VDD	-	29.8	-	dB
		0.5VDD < GAIN < 0.75VDD	-	33.3	-	dB
		GAIN > 0.75*VDD	-	35.8	-	dB
ΔGV	Gain matching	-	-1	-	1	dB
CT	Crosstalk	f = 1 kHz, Po = 1 W	50	60	-	dB
Vn	Total output noise	Inputs shorted and to ground, A Curve	-	231	-	µV
		Inputs shorted and to ground, f = 20 Hz to 20 kHz	-	400	-	µV
SVRR	Supply voltage rejection ratio	fr = 100 Hz, Vr = 0.5 Vpp, CSVR = 10 µF	-	55	-	dB
Tr, Tf	Rise and fall times	-	-	35	-	ns
fSW	Switching frequency	Internal oscillator	240	310	400	kHz
fSWR	Output switching frequency range	With internal oscillator by changing ROS (1)	240	-	-	kHz
VinH	Digital input high (H)	-	2	-	-	V
VinL	Digital input low (L)	-	-	0.8	-	V
Function Mode	Standby, mute, play modes	STBY < 0.5 V; MUTE = X	Standby
		STBY > 2.5 V; MUTE < L	Mute
		STBY > 2.5 V; MUTE > H	Play
AMUTE	Mute attenuation	VMUTE < L, VSTBY = H	-	75	-	dB

TPA3116D2 Thermal Information

PARAMETER	TEST CONDITIONS	MIN	TYP	MAX	UNIT
VOS	Class-D output offset voltage (measured differentially), VI = 0 V, Gain = 36 dB	1.5	15		mV
ICC	Quiescent supply current, SDZ = 2 V, No load or filter, PVCC = 12 V	20	35		mA
	SDZ = 2 V, No load or filter, PVCC = 24 V	32	50		mA
ICC(SD)	Quiescent supply current in shutdown mode, SDZ = 0.8 V, No load or filter, PVCC = 12 V		<50		µA
	SDZ = 0.8 V, No load or filter, PVCC = 24 V	50	400		µA
rDS(on)	Drain-source on-state resistance, measured pin to pin, PVCC = 21 V, Iout = 500 mA, TJ = 25°C		120		mΩ
G	Gain (BTL), R1 = 5.6 kΩ, R2 = Open	19	20	21	dB
	R1 = 20 kΩ, R2 = 100 kΩ	25	26	27	dB
	R1 = 39 kΩ, R2 = 100 kΩ	31	32	33	dB
	R1 = 47 kΩ, R2 = 75 kΩ	35	36	37	dB
G	Gain (SLV), R1 = 51 kΩ, R2 = 51 kΩ	19	20	21	dB
	R1 = 75 kΩ, R2 = 47 kΩ	25	26	27	dB
	R1 = 100 kΩ, R2 = 39 kΩ	31	32	33	dB
	R1 = 100 kΩ, R2 = 16 kΩ	35	36	37	dB
ton	Turn-on time, SDZ = 2 V		10		ms
tOFF	Turn-off time, SDZ = 0.8 V		2		µs
GVDD	Gate drive supply, IGVDD < 200 µA	6.4	6.9	7.4	V
VO	Output voltage maximum under PLIMIT control, V(PLIMIT) = 2 V; VI = 1 Vrms	6.75	7.9	8.75	V

Comparing the Features of TDA7498E and TPA3116D2

Features of the 1N4001

Feature	Details
Output Power	160 W + 160 W at THD = 10%, RL = 4 Ω, VCC = 36 V
Mono Parallel BTL Output Power	1 x 220 W at THD = 10%, RL = 3 Ω, VCC = 36 V
Supply Voltage Range	Wide-range single-supply operation (14 - 36 V)
Efficiency	High efficiency (η = 85%)
Parallel BTL Function	Enabled via the MODE pin
Selectable Gain Settings	Four fixed gain settings: 23.8 dB, 29.8 dB, 33.3 dB, 35.8 dB
Noise Minimization	Differential inputs minimize common-mode noise
Standby and Mute	Standby and mute features available
Protection	Smart protection, thermal overload protection
Offset Voltage	Small offset less than 20 mV

Features of the STM32 F4

Feature	Description
Supports Multiple Output Configurations	- 2 × 50 W into a 4-Ω BTL load at 21 V (TPA3116D2)
	- 2 × 30 W into an 8-Ω BTL load at 24 V (TPA3118D2)
	- 2 × 15 W into an 8-Ω BTL load at 15 V (TPA3130D2)
Wide Voltage Range	4.5 V to 26 V
Efficient Class-D Operation	- >90% power efficiency
	- Low idle loss reduces heat sink size
	- Advanced modulation schemes
Multiple Switching Frequencies	- AM avoidance
	- Master and slave synchronization
	- Up to 1.2 MHz switching frequency
Feedback Power-Stage Architecture	High PSRR reduces PSU requirements
Programmable Power Limit	Yes
Input Options	Differential and single-ended inputs
Mode Options	Stereo and mono mode with single-filter mono configuration
Single Power Supply	Reduces component count
Integrated Self-Protection Circuits	- Overvoltage
	- Undervoltage
	- Overtemperature
	- DC detect
	- Short circuit with error reporting
Thermally Enhanced Packages	- DAD (32-pin HTSSOP pad up)
	- DAP (32-pin HTSSOP pad down)
Operating Temperature Range	–40°C to 85°C

Technical Specifications

Here is a table with the technical specifications, attributes, parameters, and parts with similar specifications to the STMicroelectronics TDA7498E.

Type	Parameter
Lifecycle Status	Active (Last Updated: 8 months ago)
Mount	Surface Mount
Mounting Type	Surface Mount
Package / Case	36-PowerFSOP (0.295, 7.50mm Width)
Number of Pins	36
Operating Temperature	0°C ~ 70°C TA
Packaging	Tube
JESD-609 Code	e3
Part Status	Obsolete
Moisture Sensitivity Level (MSL)	1 (Unlimited)
Number of Terminations	36
ECCN Code	EAR99
Type	Class D
Terminal Finish	Matte Tin (Sn) - annealed
HTS Code	8542.33.00.01
Voltage - Supply	14V ~ 36V
Terminal Position	DUAL
Terminal Form	GULL WING
Peak Reflow Temperature (°C)	260
Number of Functions	1
Terminal Pitch	0.5mm
Time@Peak Reflow Temperature-Max (s)	30
Base Part Number	TDA7498
Pin Count	36
Output Type	1-Channel (Mono) or 2-Channel (Stereo)
Supply Voltage-Min (Vsup)	14V
Number of Channels	2
Output Power	220W
Input Offset Voltage (Vos)	20mV
Bandwidth	20 kHz
Voltage Gain	35.8dB
Max Output Power	220W
Max Output Power x Channels @ Load	220W x 1 @ 3 Ω; 160W x 2 @ 4 Ω
Harmonic Distortion	10%
Features	Differential Inputs, Mute, Short-Circuit and Thermal Protection, Standby
Dimensions	Length: 10.3mm, Width: 7.5mm, Height: 2.45mm
Radiation Hardening	No
RoHS Status	ROHS3 Compliant

Comparison of TDA7498E and TPA3116D2 in Electrical Properties

TDA7498E Electrical Characteristics

Thermal Metric (1)	TPA3130D2	TPA3118D2	TPA3116D2	Unit
Package	DAP (2)	DAP (3)	DAD (4)
Pin Count	32 Pins	32 Pins	32 Pins
RθJA Junction-to-ambient thermal resistance	36	22	14	°C/W
ψJT Junction-to-top characterization parameter	0.4	0.3	1.2	°C/W
ψJB Junction-to-board characterization parameter	5.9	4.7	5.7	°C/W

TPA3116D2 Electrical Characteristics

Symbol	Parameter	Min	Typ	Max	Unit
Rth j-case	Thermal resistance, junction to case	-	3	-	°C/W

Datasheet PDF

TDA7498E Datasheets:

TDA7498E.pdf