STW5094 datasheet(33/37 Pages) STMICROELECTRONICS

部件名	STW5094

功能描述	18 BIT 8kHz TO 48kHz LOW POWER STEREO AUDIO DAC WITH INTEGRATED POWER AMPLIFIERS AND VOICE CODEC

PDF	37 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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33 / 37 page

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STw5094

TYPICAL PERFORMANCE CHARACTERISTICS

Figure 1. Stereo DAC performance

FFT audio mode (8192 points). Full scale input/output

sinewave at 1 kHz (+3dBr)

VCC=2.7V, Fs=48kHz, 18 bits input word.

Figure 2. Stereo DAC performance

Dynamic range: Noise + THD [dBr] versus signal

amplitude [dBm0]

VCC=2.7V, Fs=48kHz, 18 bits input word.

Figure 3. Voice RX performance

S/(N+THD) [dB] versus signal amplitude [dBm0] with

Ω output load

VCC=2.7V, Fs=8kHz

Figure 4. Voice TX performance

S/(N+THD) versus signal amplitude

VCC=2.7V, Fs=8kHz

Figure 5. Digital Audio Filter characteristic

Frequency response up to 3.45 Fs

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0.5

1.5

2.5

Normalized Freq. [Fs]

Digital Audio Filter

Figure 6. Digital Audio Filter characteristic

In band Frequency response

-0.5

-0.4

-0.3

-0.2

-0.1

0.1

0.2

0.3

0.4

0.5

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

Normalized Freq. [Fs]

Digital Audio Filter

STW5094 数据表(PDF) 33 Page - STMicroelectronics

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