Datasheet

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SBAS327A − JUNE 2004 − REVISED SEPTEMBER 2004
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5
ELECTRICAL CHARACTERISTICS (continued)
Unless otherwise noted, all characteristics specified with T
A
= +25°C, V
CC
= +5V, V
DD
= +3.3V, system clock (SCKI) is 512f
S
for Single Rate
Sampling, 256f
S
for Dual Rate Sampling, or 128f
S
for Quad Rate Sampling. The device is operated in Master mode for all dynamic performance
measurements.
PCM4204
PARAMETER UNITMAXTYPMINTEST CONDITIONS
DIGITAL DECIMATION FILTER (continued)
Quad Rate Sampling Mode
Passband Edge −0.005dB 0.375f
S
Hz
−3dB 0.490f
S
Hz
Passband Ripple ±0.005 dB
Stop Band Edge 0.770f
S
Hz
Stop Band Attenuation −135 dB
Group Delay 9.5/f
S
sec
DIGITAL HIGH PASS FILTER
Frequency Response (−3dB) f
S
/48000 Hz
POWER SUPPLY
Voltage Range
V
CC
1, V
CC
2 +4.75 +5.0 +5.25 VDC
V
DD
1, V
DD
2, V
DD
3 +3.0 +3.3 +3.6 VDC
Power Down Supply Current V
CC
= +5V, V
DD
= +3.3V, RST = Low
I
CC
1 + I
CC
2 10 mA
I
DD
1 + I
DD
2 + I
DD
3 2 mA
Quiescent Current I
CC
1 + I
CC
2 V
CC
= +5.0V
f
S
= 48kHz
(4)
108 130 mA
f
S
= 96kHz 108 130 mA
f
S
= 192kHz 108 130 mA
I
DD
1 + I
DD
2 + I
DD
3 V
DD
= +3.3V
f
S
= 48kHz
(4)
18 23 mA
f
S
= 96kHz 30 44 mA
f
S
= 192kHz 23 26 mA
Total Power Dissipation V
CC
= +5V, V
DD
= +3.3V
f
S
= 48kHz
(4)
600 726 mW
f
S
= 96kHz 640 795 mW
f
S
= 192kHz 615 736 mW
(1)
Applies to the FMT0, FMT1, FMT2, S/M, FS0, FS1, FS2, HPFD, BCK, LRCK, SUB, DSDCLK, DSD1, DSD2, DSD3, DSD4, and SCKI pins.
(2)
Applies to the TEST and RST pins.
(3)
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
S
= 48kHz or a 40kHz low-pass
filter for f
S
= 96kHz and 192kHz. All A-weighted measurements are performed using the A-weighting filter in combination with the band limiting
filters already mentioned. The measurements are made with the RMS detector selected.
(4)
A 256f
S
system clock is used at final production test for f
S
= 48kHz measurements.
(5)
Typical DSD 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 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.