AT2008 Datasheet, PDF (15/19 Pages) List of Unclassifed Manufacturers – 8 Channels ADPCM Processor

AT2008
8 Channels ADPCM Processor
Electrical Characteristics:
DC Electrical Characteristics
(V_DD=3.3V+20%-10%)
Parame ter
Symbol Minimum Typical Maximum Units Notes
Active Supply Current Ivcc
40
mA 1,2
Power down
I_VCCPD
<1
mA 3
Input Leakage
I_I
-1.0
+1.0
µA
Output Leakage
I_O
-1.0
+1.0
µA 4
Output Current (2.4V) I_OH
Output Current (0.4 v) I_OL
Notes:
1.2
mA
4
mA
1. CLKP = CLKA = 2.048MHz; MCLK = 10MHz.
2. Outputs open; inputs swinging full supply levels; 8 channel full duplex operation.
3. Power down; Xtal = high; fsx, fsy, CLKA, CLKP all 0.
4. Xout and Yout are 3-stated.
(0°C to 70°C)
PCM Interface
AC Electrical Characteristics
Parameter
Symbol Minimum Typical Maximum Units
CLKP, CLKA Period
t_PXY
244
CLKP, CLKA Pulse Width t_WXYL
100
t_{WXY H}
3906
ns
ns
CLKP, CLKA Rise Fall
t_RXY
10
20
ns
Times
t_FXY
Hold Time from CLKP,
t_HOLD
0
ns
CLKA to FSY
Setup Time from FSY high t_SF
50
ns
to CLKP, CLKA low
Setup Time for Xin, Yin to t_SD
50
ns
CLKP, CLKA low
Hold Time from Xin, Yin to t_HD
50
ns
CLKP, CLKA low
Delay Time from CLKP,
t_DXYO
10
CLKA to Valid Xout, Yout
150
ns
Notes:
1. Maximum width of FSY is CLKP/CLKA period (except for signaling frame).
2. Measured at V_IH = 2.0V, V_IL = 0.8V, and 10ns maximum rise and fall times.
3. Load = 150 pF + 2LSTTL loads.
4. For LSB of PCM or ADPCM byte.
(0°C to 70°C)
(V_DD=3.3V+20%-10%)
Notes
1
2
2
2
2
3
Page 15 of 19
©2001 Atelic Systems, Inc.