TK2070 datasheet(4/21 Pages) TRIPATH

Part #	TK2070

Description	STEREO 70W (4Ohm) CLASS-T DIGITAL AUDIO AMPLIFIER DRIVER USING DIGITAL POWER PROCESSING (DPP) TECHNOLOGY

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Manufacturer	TRIPATH [Tripath Technology Inc.]

Direct Link	http://www.etelos.com/

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Tr i p ath Technol ogy, I n c. - Techni cal I n for m ati on

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TK2070 – MC/2.1/10-03

PERFORMANCE CHARACTERISTICS – TK2070

TA = 25 °C. Unless otherwise noted, VCC = 24V, f=1kHz, and the measurement bandwidth is 20kHz.

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNITS

POUT

Output Power

(Continuous Average/Channel)

(Note 13)

VCC = 24V, RL = 8Ω

THD+N = 0.02%

THD+N = 1.0%

THD+N = 10.0%

VCC = 24V, RL = 4Ω

THD+N = 0.05%

THD+N = 5.0%

THD+N = 10.0%

22

33

40

45

55

70

W

THD + N

Total Harmonic Distortion Plus

Noise

POUT = 24W/Channel, RL = 8Ω

VCC = 24V

POUT = 40W/Channel, RL = 4Ω

VCC = 24V

0.03

0.04

%

IHF-IM

IHF Intermodulation Distortion

19kHz, 20kHz, 1:1 (IHF), RL = 4Ω

POUT = 10W/Channel

95

dB

SNR

Signal-to-Noise Ratio

A-Weighted

0dB = 70W/Channel, RL = 4Ω

105

dB

CS

Channel Separation

0dB = 9W, RL = 4Ω, f=1kHz

100

dB

AV

Amplifier Gain

POUT = 10W/Channel, RL = 8Ω,

See Application / Test Circuit

12

V/V

AVERROR

Channel to Channel Gain Error

POUT = 10W/Channel, RL = 8Ω

See Application / Test Circuit

0.5

dB

η

Power Efficiency

POUT = 35W/Channel, RL = 8Ω

POUT = 70W/Channel, RL = 4Ω

92

86

%

eN

Output Noise Voltage

A-Weighted, input AC grounded,

RFBC = 11kΩ , RFBB = 1kΩ

85

µV

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