CT8022 Datasheet, PDF (172/194 Pages) List of Unclassifed Manufacturers – VOIP/VON G.723.1, G279AB TRUESPEECH CO-PROCESSOR

TrueSpeech® Co-Processor
PRELIMINARY/CONFIDENTIAL
Version: 1.18
12 Electrical Characteristics
Table 12-1: Absolute Maximum Ratings Over Specified Temperature Range
Supply voltage range, VCC
Input voltage range
Operating free-air temperature range
Storage temperature range
-0.3 V to 6 V
-0.3 V to 6 V
0°C to 70°C
-55°C to 150°C
Table 12-2: Recommended Operating Conditions
PARAMETERS
MIN
VCC supply voltage
4.5
VSS supply voltage
VIH high-level input voltage
2
(all digital input pins except RESET)
VIL low-level input voltage
(all digital input pins except RESET)
VT+ positive going RESET threshold (at VCC = 5.0 v)
VT- negative going RESET threshold
1.3
IOH high level output current
IOL low level output current
Oscillator crystal (100 PPM)
Note: the exact 4.096 MHz crystal frequency used to
generate the 45.056 main clock via the x11 PLL is required
only if the CT8022 is to operate in CODEC master mode and
generate a SCLK signal at exactly 2.048 MHz.
TA operating free-air temperature
0
TYP
5
0
3.35
1.9
4.096
MAX
5.5
0.8
4.6
+4
-4
4.096
UNIT
V
V
V
V
V
V
mA
mA
MHz
70
°C
The following circuit is recommended for driving the CT8022 RESET pin in order to meet the VIH spec for this pin:
10K
RESET
VCC
10K
RESET
172
DSP GROUP, INC., 3120 SCOTT BOULEVARD
CT8022A11AQC FW Revision 0118
SANTA CLARA, CA 95054 PH: 408 986 – 4300 FAX: 408 986 – 4490
All specifications are subject to change without prior notice.