Preliminary
AS2520/21/20B/21B
Electrical Characteristics
Absolute Maximum Ratings*
Supply Voltage............................................................................................................................... -0.3 £ V £ 7V
DD
Input Current..........................................................................................................................................+/- 25 mA
Input Voltage (LS)....................................................................................................................... -0.3V £ V £ 10V
IN
Input Voltage (LI, CS, SS).............................................................................................................-0.3V £ V £ 8V
IN
Input Voltage (STB, RI).........................................................................................................-2V £ V £ VDD +0.3V
IN
Digital Input Voltage..........................................................................................................-0.3V £ V £ V + 0.3V
IN
DD
Electrostatic Discharge ..........................................................................................................................+/- 1000V
Storage Temperature Range........................................................................................................... -65 to +125°C
Total Power Dissipation ............................................................................................................................500mW
*Exceeding these figures may cause permanent damage. Functional operation under these conditions is not permitted.
Recommended Operating Range
Symbol
VDD
Parameter
Conditions
Min. Typ.* Max. Units
Supply Voltage (internally generated) Speech mode
Supply Voltage (internally regulated) Speech mode
Ambient Operating Temp. Range
3.0
3.0
-25
4.1
4.1
5.5
5.5
V
V
VPP
TAMB
+70 °C
* Typical figures are at 25°C and are for design aid only; not guaranteed and not subject to production testing.
DC Characteristics (ILINE = 15 mA, recommended operating conditions unless otherwise specified)
Symbol
Parameter
Conditions
Min.
Typ.
Max. Units
IDD
Operating Supply Current HS = high
LE = high
5
5
7
7
7
mA
mA
µA
µA
µA
µA
V
HS and LE = high
5
PD = high, CM running
300
200
1
IDDPD
IDD0
Power-Down Current
Standby Current
PD = high
All digital inputs = VSS
V
Line Voltage
13 mA< ILINE < 100 mA
VOL = 0.4V
4.2
4.5
4.8
LI
IOL
Output Current, Sink
Pin CS, SS
1.5
1.5
mA
mA
IOL
Output Current, Sink
Pin CM
VOL = 0.4V
VIL
VIH
Input Low Voltage
Input High Voltage
TAMB = 25°C
TAMB = 25°C
VSS
0.2 VDD
VDD
V
V
0.8 VDD
Rev. 5.1
Page 9
May 1999