AT2004 Datasheet, PDF (22/25 Pages) List of Unclassifed Manufacturers – 4 Channels ADPCM Processor with Echo Cancellation and Conferencing

AT2004
4 Channels ADPCM Processor with Echo Cancellation and Conferencing
Master Clock/Reset
AC Electrical Characteristics
Parameter Symbol
Minimum
MCLK
t_{P M}
Period
69.84
MCLK
Rise/Fall
t_RM, t_FM
Times
RSTZ
t_RST
1
Pulse
Width
Note:
1. MCLK = 14MHz or 10MHz.
Typical
100
Maximum
125
10
Units
ns
ns
(0°C to 70°C)
(V_DD=3.3V+20%-10%)
Notes
1
ms
Serial Port
(0°C to 70°C)
AC Electrical Characteristics
(V_DD=3.3V+20%-10%)
Parameter
Symbol Minimum Typical Maximum Units Notes
SDI to SCLK Set Up
t_DC
55
ns
1
SCLK Period
t_P
1
µs
1
SCLK to SDI Hold
t_CDH
55
ns
1
SCLK Low Time
t_CL
250
500
ns
1
SCLK High Time
t_CH
250
500
ns
1
SCLK Rise and Fall Time t_R, t_F
100
ns
1
SCSZ to SCLK Setup
t_CC
50
ns
1
SCLK to SCSZ Hold
SCSZ Inactive Time
t_CCH
250
t_CWH
250
ns
1
ns
1
SCLK Setup to SCSZ
t_SCC
50
Falling
ns
1
Note:
1. Measured at V_IH = 2.0V, V_IL = 0.8V, and 10ns maximum rise and fall time.
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©2001 Atelic System, Inc