Datasheet

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ELECTRICAL CHARACTERISTICS: General, SRC, DIR, and DIT
SRC4382
SBFS030C – JANUARY 2006 – REVISED SEPTEMBER 2007
All specifications are at T
A
= +25C, VDD18 = +1.8V, VDD33 = +3.3V, VIO = +3.3V, and VCC = +3.3V, unless otherwise noted.
SRC4382
PARAMETER CONDITIONS MIN TYP MAX UNITS
DIGITAL I/O CHARACTERISTICS
(All I/O Pins Except Line Receivers and Line Driver)
High-Level Input Voltage, V
IH
0.7 נ VIO VIO V
Low-Level Input Voltage, V
IL
0 0.3 נ VIO V
High-Level Input Current, I
IH
0.5 10 μ A
Low-Level Input Current, V
IL
0.5 10 μ A
High-Level Output Voltage, V
OH
I
O
= – 4mA 0.8 נ VIO VIO V
Low-Level Output Voltage, V
OL
I
O
= +4mA 0 0.2 נ VIO V
Input Capacitance, C
IN
3 pF
LINE RECEIVER INPUTS
(RX1+, RX1 – , RX2+, RX2 – , RX3+, RX3 – , RX4+, RX4 – )
Voltage across a given
Differential Input Sensitivity, V
TH
150 200 mV
differential input pair
Input Hysteresis, V
HY
150 mV
LINE DRIVER OUTPUTS
(TX+, TX – )
Differential Output Voltage, V
TXO
R
L
= 110 Ω Across TX+ and TX – 5.4 V
PP
MASTER CLOCK INPUT
Master Clock Input (MCLK) Frequency, f
MCLK
1 27.7 MHz
Master Clock Input (MCLK) Duty Cycle, f
MCLKD
45 55 %
ASYNCHRONOUS SAMPLE RATE CONVERTER (SRC)
Input or Output Sampling Rate, f
SIN
or f
SOUT
4 216 kHz
Input-to-Output Sampling Ratio 1:16 16:1
Interchannel Gain Mismatch 0 dB
Interchannel Phase Mismatch 0 Degrees
Dynamic Range (no weighting filter applied)
(1)
BW = 22Hz to f
SOUT
/2,
f = 997Hz at – 60dBFS
f
SIN
:f
SOUT
= 12kHz:192kHz 125 dB
f
SIN
:f
SOUT
= 44.1kHz:44.1kHz 125 dB
f
SIN
:f
SOUT
= 44.1kHz:48kHz 125 dB
f
SIN
:f
SOUT
= 44.1kHz:96kHz 125 dB
f
SIN
:f
SOUT
= 44.1kHz:192kHz 125 dB
f
SIN
:f
SOUT
= 48kHz:44.1kHz 125 dB
f
SIN
:f
SOUT
= 48kHz:48kHz 125 dB
f
SIN
:f
SOUT
= 48kHz:96kHz 125 dB
f
SIN
:f
SOUT
= 48kHz:192kHz 125 dB
f
SIN
:f
SOUT
= 96kHz:44.1kHz 125 dB
f
SIN
:f
SOUT
= 96kHz:48kHz 125 dB
f
SIN
:f
SOUT
= 96kHz:96kHz 125 dB
f
SIN
:f
SOUT
= 96kHz:192kHz 125 dB
f
SIN
:f
SOUT
= 192kHz:12kHz 125 dB
f
SIN
:f
SOUT
= 192kHz:44.1kHz 125 dB
f
SIN
:f
SOUT
= 192kHz:48kHz 125 dB
f
SIN
:f
SOUT
= 192kHz:96kHz 125 dB
f
SIN
:f
SOUT
= 192kHz:192kHz 125 dB
(1) Measured with an Audio Precision SYS-2722 192kHz test system with the input and output sampling frequencies asynchronous to one
another. A-weighted dynamic range specifications will be improved by approximately 2dB to 3dB when compared to the results without
A-weighting applied.
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