73k224bl ETC-unknow, 73k224bl Datasheet - Page 24

• Manufacturer Part Number: 73k224bl
• Description: Single-chip Modem Integrated Hybrid
• Manufacturer: ETC-unknow

73K224BL
V.22bis/V.22/V.21/Bell 212A/103
Single-Chip Modem w/ Integrated Hybrid
DYNAMIC CHARACTERISTICS AND TIMING
PARAMETER
Carrier Detect
Threshold
Hysteresis
Delay Time
Hold Time
Answer Tone Detectors
Detect Level
Detect Time
Hold Time
Pattern Detectors
S1 Pattern
Unscrambled Mark
Receive Level Indicator
Detect On
Valid after Carrier Detect
Delay Time
Hold Time
Delay Time
Hold Time
FSK
DPSK
QAM
FSK
DPSK
QAM
CONDITION
Receive gain = On for lower input level measurements
All modes
All modes
70 dBm0 to -6 dBm0 Change at input
70 dBm0 to -40 dBm0 Change at input
-70 dBm0 to -6 dBm0 Change at input
-70 dBm0 to -40 dBm0 Change at input
-70 dBm0 to -6 dBm0 Change at input
-70 dBm0 to -40 dBm0 Change at input
-6 dBm0 to -70 dBm0 Change at input
40 dBm0 to -70 dBm0 Change at input
-6 dBm0 to -70 dBm0 Change at input
-40 dBm0 to -70 dBm0 Change at input
-6 dBm0 to -70 dBm0 Change at input
-40 dBm0 to -70 dBm0 Change at input
DPSK Mode
Call init mode, 2100 or 2225 Hz
Call init mode, 2100 or 2225 Hz
DPSK Mode
For signals from -6 to -40 dBm0,
Demodulation mode
For signals from -6 to -40 call init
mode
DPSK Mode
(continued)
24
MIN
-48
-48
-22
25
25
25
25
25
15
20
14
25
18
10
10
10
10
7
7
6
6
1
NOM
2
4
MAX
-43
-43
-28
37
37
17
17
37
37
37
30
29
21
32
28
50
50
55
45
45
45
7
dBm0
dBm0
dBm0
UNIT
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms