CP2114 Просмотр технического описания (PDF) - Silicon Laboratories

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CP2114

SINGLE-CHIP USB AUDIO TO I2S DIGITAL AUDIO BRIDGE

Silicon Laboratories 

CP2114

Figure 4. WM8523 THD+N vs. Amplitude (997 Hz)

Table 12. Analog Output/Input Characteristics (PCM1774 Daughtercard)

25 °C, bus-powered, USB synchronization mode: asynchronous, digital audio interface mode: I2S, DAC/ADC gains set to 0 dB,

test signal for analog output: uncompressed WAV file, full-scale sine wave at 997 Hz, measurement bandwidth 20 Hz to 20 kHz

Additional parameters that apply to this table are as follows:

 VIO = VDD = VCC = VPA = 3.3 V.

 AOUT_L and AOUT_R outputs have 4.7  series resistors.

 Internal oscillator mode.

Parameter

Test Condition

Min Typ Max Unit

THD + Noise

0 dB FS input

–20 dB FS input

–60 dB FS input

— –82 — dB

— –89 — dB

— –89 — dB

Dynamic Range

A-weighted

—

89

—

dB

Noise Level

Output muted

— –103 — dB

Frequency response

20 Hz – 20 kHz

— +0.04, — dB

–0.11

Rev. 1.1

11

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