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PCM4104-EP

SBAS419 – JUNE 2007

ELECTRICAL CHARACTERISTICS (continued)

PCM4104

PARAMETER

CONDITIONS

UNITS

MIN

TYP

MAX

f = 1 kHz at 0 dBFS

–100

–94

Total harmonic distortion +

THD+N

f = 1 kHz at 0 dBFS (for –40

°C to 85°C)

-91

dB

noise

f = 1 kHz at –60 dBFS

–56

f = 1 kHz at –60 dBFS

112

118

dB

Dynamic range, A-weighted

f = 1 kHz at –60 dBFS (for –40C to 85

°C)

109

dB

Idle channel SNR, A-weighted

All zero input data

119

dB

Idle channel SNR, unweighted

All zero input data

116

dB

f = 1 kHz at 0 dBFS for active channel

100

110

dB

Channel separation

f = 1 kHz at 0 dBFS for active channel (for

98

dB

–40C to 85

°C)

f = 1 kHz at 0 dBFS,

–100

BW = 10 Hz to 40 kHz

Total harmonic distortion +

THD+N

dB

noise

f = 1 kHz at –60 dBFS,

–53

BW = 10 Hz to 40 kHz

Dynamic range, A-weighted

f = 1 kHz at –60 dBFS

118

dB

Idle channel SNR, A-weighted

All zero input data

119

dB

Idle channel SNR, unweighted

All zero input data, BW = 10 Hz to 40 kHz

113

dB

Channel separation

f = 1 kHz at 0 dBFS for active channel

110

dB

f = 1 kHz at 0 dBFS,

–97

BW = 10 Hz to 40 kHz

Total harmonic distortion +

THD+N

dB

noise

f = 1 kHz at –60 dBFS,

–53

BW = 10 Hz to 40 kHz

Dynamic range, A-weighted

f = 1 kHz at –60 dBFS

118

dB

Idle channel SNR, A-weighted

All zero input data

118

dB

Idle channel SNR, unweighted

All zero input data, BW = 10 Hz to 40 kHz

113

dB

Channel separation

f = 1 kHz at 0 dBFS for active channel

110

dB

DYNAMIC PERFORMANCE WITH 16-BIT DATA

f = 1 kHz at 0 dBFS

–92

Total harmonic distortion +

THD+N

dB

noise

f = 1 kHz at –60 dBFS

–33

Dynamic Range, A-weighted

f = 1 kHz at –60 dBFS

96

dB

All zero input data

118

dB

All zero input data

115

dB

DIGITAL FILTERS

(1)

Dynamic performance parameters are measured using an Audio Precision System Two Cascade or Cascade Plus test system. Input

data word length is 24 bits with triangular PDF dither added for dynamic range and THD+N tests. Idle channel SNR is measured with

both the soft and zero data mute functions disabled and 0% full–scale input data with no dither applied. The measurement bandwidth is

limited by using the Audio Precision 10 Hz high–pass filter in combination with either the AES17 20 kHz low-pass filter or AES17 40 kHz

low-pass filter. All A-weighted measurements are performed using the Audio Precision A-weighting filter in combination with either the

22 kHz or 80 kHz low-pass filter. Measurement mode is set to RMS for all parameters. The AVERAGE measurement mode will yield

better typical performance numbers.

(2)

Idle Channel SNR is not limited by word length.

4

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