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SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted, all characteristics specified with T = +25°C, V
= +5V, V = +3.3V, system clock (SCKI) is 512f for Single Rate
DD S
A
CC
Sampling, 256f for Dual Rate Sampling, or 128f for Quad Rate Sampling. The device is operated in Master mode for all dynamic performance
S
S
measurements.
PCM4204
TYP
PARAMETER
TEST CONDITIONS
MIN
MAX
UNIT
(3)
DYNAMIC PERFORMANCE (PCM Output)
(4)
= 48kHz
THD+N
f
f
f
S
V
V
= −0.5dBFS, f = 1kHz
IN
−105
−56
118
−96
dB
dB
dB
dB
IN
IN
= −60dBFS, f = 1kHz
IN
Dynamic Range
Channel Separation
V
IN
= −60dBFS, f = 1kHz, A-weighted
IN
112
105
120
= 96kHz
THD+N
S
V
V
= −0.5dBFS, f = 1kHz, BW = 20Hz to 40kHz
IN
−103
−52
118
dB
dB
dB
dB
IN
IN
= −60dBFS, f = 1kHz, BW = 20Hz to 40kHz
IN
Dynamic Range
Channel Separation
V
IN
= −60dBFS, f = 1kHz, A-weighted
IN
120
= 192kHz
S
THD+N
Dynamic Range
V
IN
V
= −0.5dBFS, f = 1kHz, BW = 20Hz to 40kHz
IN
−103
108
117
dB
dB
dB
dB
= 0V, Unweighted, BW = 20Hz to 40kHz
IN
V
IN
= 0V, A-weighted
Channel Separation
120
(5)
DYNAMIC PERFORMANCE (DSD Output)
64f Output Rate
S
THD+N
DSDBCK = 2.8224MHz, BW = 20Hz to 20kHz
= −0.5dBFS, f = 1kHz
V
IN
−103
−52
115
dB
dB
dB
IN
V
IN
= −60dBFS, f = 1kHz
IN
Dynamic Range
V
IN
= −60dBFS, f = 1kHz, A-weighted
IN
DSDBCK = 5.6448MHz, BW = 20Hz to 20kHz
= −0.5dBFS, f = 1kHz
128f Output Rate
S
THD+N
V
IN
−105
−56
118
dB
dB
dB
IN
= −60dBFS, f = 1kHz
V
IN
IN
Dynamic Range
V
IN
= −60dBFS, f = 1kHz, A-weighted
IN
DIGITAL DECIMATION FILTER
Single and Dual Rate Sampling Modes
Passband Edge
Passband Ripple
Stop Band Edge
Stop Band Attenuation
Group Delay
−0.005dB
0.453f
0.005
Hz
dB
Hz
dB
sec
S
0.547f
S
−100
37/f
S
(1)
(2)
(3)
Applies to the FMT0, FMT1, FMT2, S/M, FS0, FS1, FS2, HPFD, BCK, LRCK, SUB, DSDCLK, DSD1, DSD2, DSD3, DSD4, and SCKI pins.
Applies to the TEST and RST pins.
Typical performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement bandwidth
is limited using the Audio Precision 22Hz high-pass filter in combination with either a 20kHz low-pass filter for f = 48kHz or a 40kHz low-pass
S
filter for f = 96kHz and 192kHz. All A-weighted measurements are performed using the A-weighting filter in combination with the band limiting
S
filters already mentioned. The measurements are made with the RMS detector selected.
(4)
(5)
A 256f system clock is used at final production test for f = 48kHz measurements.
S
S
Typical DSD performance is measured using an Audio Precision System Two Cascade or Cascade Plus test system. The measurement
bandwidthis limited using the Audio Precision 22Hz high-pass filter in combination with a 20kHz low-pass filter. All A-weighted measurements
are performed using the A-weighting filter in combination with the band limiting filter already mentioned. The measurements are made with the
RMS detector selected. The 1-bit DSD data is converted to 24-bit linear PCM data for measurement using a PCM4204 configured for DSD input
mode.
4
BB [ BURR-BROWN CORPORATION ]
