Cirrus Logic CS4354 - Manual (Page 11)

DS895F2 11
CS4354
DC ELECTRICAL CHARACTERISTICS
Test conditions (unless otherwise specified): VA = 5 V, VL = 3.3 V; GND = 0 V; SDIN = 0; all voltages with respect
to ground.
Notes: 15. Power supply current increases with increasing sample rate and increasing MCLK frequency. Typical
values are based on Fs = 48 kHz and MCLK = 12.288 MHz. Maximum values are based on highest
sample rate and highest MCLK frequency; see
“Switching Specifications - Serial Audio Interface” on
page 8 . Variance between speed modes is small.
16. During normal operation, SDIN = 997 Hz sine wave at 0 dBFS with load resistance R
L
= 3 k
 .
17. Power-down is defined as all clock and data lines held static low. All digital inputs have a weak pull-
down (approximately 50 k
) which is only present during power on reset. Opposing this pull-down will
increase the power-down current.
18. Valid with the recommended capacitor values as shown in the “Typical Connection Diagram” on
page 12 .
2.1 Digital I/O Pin Characteristics
Input and output levels and associated typical power supply voltage are shown in Table 2 . Logic levels
should not exceed the corresponding power supply voltage.
Table 2. Digital I/O Pin Characteristics
Parameters Symbol Min Typ Max Units
Power Supplies
Power supply current (Note 15) Normal operation (Note 16)
Power-down (Note 17)
I
VA
I
VL
I
VA
I
VL
-
-
-
- 10
0.1
0.5
1
13
0.2
-
-
mA
mA
mA
A
Power dissipation (all supplies) Normal Operation (Note 16)
(Note 15) Power-Down (Note 17)
-
- 50
2.5
65
-
mW
mW
Power supply rejection ratio (Note 18) (1 kHz)
(60 Hz)
PSRR -
- 60
60 -
- dB
dB
DC Output Voltages
Pin voltage FILT+ to GND
FLYP to FLYN
GND to -VFILT
-
-
- 3.5
4.9
4.7 -
-
- V
V
V
Pin Name Power Supply I/O Driver Receiver
MCLK VL Input - 1.8 V - 5 V
LRCK VL Input - 1.8 V - 5 V
SCLK VL Input - 1.8 V - 5 V
SDIN VL Input - 1.8 V - 5 V