CP2114

Rev. 1.1

9

Table 10. Analog Output/Input Characteristics (CS42L55 daughtercard)

25 °C, bus-powered, USB synchronization mode: asynchronous, digital audio interface mode: I

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:

Parameter

Test Condition

Min

Typ

Max

Unit

Analog Output (Line Output)

THD + Noise

0 dB input

–20 dB input

–60 dB input

—

—

—

–80

–91

–91

—

—

—

dB

dB

dB

Dynamic Range

A-weighted

—

92

—

dB

Noise Level

Output muted

—

–112

—

dB

Frequency response

20 Hz – 20 kHz

—

+0.03,

–0.07

—dB

Analog Input

THD + Noise

–1 dB input

–20 dB input

–60 dB input

—

—

—

–85

–87

–87

—

—

—

dB

dB

dB

Dynamic Range

A-weighted

—

90

—

dB

Noise Level

Analog input locally muted

—

0*

—

dB

*Note: When analog input is locally muted, the CP2114 transmits sample values of 0 to the host.

Table 11. Analog Output Characteristics (WM8523 daughtercard)

25 °C, bus-powered, USB synchronization mode: asynchronous, digital audio interface mode: I

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:

Parameter

Test Condition

Min

Typ

Max

Unit

THD + Noise

0 dB FS input

–20 dB FS input

–60 dB FS input

—

—

—

–83

–91

–91

—

—

—

dB

dB

dB

Dynamic Range

A-weighted

—

94

—

dB

Noise Level

Output muted

—

–99

—

dB

Frequency response

20 Hz – 20 kHz

—

+0.04,

–0.05

—dB