Cirrus Logic CS5581 - Manual (Page 5)

CS5581
DS796PP1 5
3/25/08
14:34
ANALOG CHARACTERISTICS
(CONTINUED) T
A
= -40 to +85 °C; V1+ = V2+ = +2.5 V, ±5%; V1- =
V2- = -2.5 V, ±5%; VL -VLR = 3.3 V, ±5%; VREF = (VREF+) - (VREF-) = 4.096V; MCLK = 16 MHz; SMODE = VL,
unless otherwise stated; BUFEN = V1+ unless otherwise stated. Connected per
Figure 6 .
5. Measured using an input signal of 1 V DC.
6. For optimum performance, VREF+ should always be less than (V+) - 0.2 volts to prevent saturation of the VREF+ input buffer.
7. Tested with 100 mVP-P on any supply up to 1 kHz. V1+ and V2+ supplies at the same voltage potential, V1- and V2- supplies at
the same voltage potential.
Parameter Min Typ Max Unit
Analog Input
Analog Input Range Unipolar
Bipolar
0 to +VREF / 2
±VREF / 2
V
V
Input Capacitance - 10 - pF
CVF Current (Note 5) AIN Buffer On (BUFEN = V+)
AIN Buffer Off (BUFEN = V-)
ACOM
-
-
- 600
130
130 -
-
- nA
µA
µA
Voltage Reference Input
Voltage Reference Input Range
(VREF+) – (VREF-)
(Note 6) 2.4 4.096 4.2 V
Input Capacitance - 10 - pF
CVF Current VREF+ Buffer On (BUFEN = V+)
VREF+ Buffer Off (BUFEN = V-)
VREF-
-
-
- 3
1
1 -
-
- µA
mA
mA
Power Supplies
DC Power Supply Currents I
V1
I
V2
I
VL
-
-
- -
-
- 18
1.8
0.6
mA
mA
mA
Power Consumption Normal Operation Buffers On
Buffers Off
-
- 85
60 101
80
mW
mW
Power Supply Rejection (Note 7) V1+ , V2+ Supplies
V1-, V2- Supplies
-
- 80
80 -
- dB
dB