73K324L-IGT ETC [List of Unclassifed Manufacturers], 73K324L-IGT Datasheet - Page 20

• Manufacturer Part Number: 73K324L-IGT
• Description: CCITT V.22bis, V.22, V.21, V.23, Bell 212A Single-Chip Modem
• Manufacturer: ETC [List of Unclassifed Manufacturers]

73K324L
CCITT V.22bis, V.22, V.21, V.23, Bell 212A
Single-Chip Modem
DYNAMIC CHARACTERISTICS AND TIMING
PARAMETERS
Carrier Detect Receive Gain Boost “On” for Lower Input Level Measurements
Threshold
Hysteresis
Delay Time
Hold Time
Special Tone Detectors
Detect Level
Delay and Hold Time
2225 or 2100 Hz answer tone
900 Hz SCT
channel
Hysteresis
PATTERN DETECTORS
S1 Pattern
Delay Time
Hold Time
Unscrambled Mark
Delay Time
Hold Time
Receive Level Indicator
Detect On
Valid after Carrier Detect
Receive V.23 main
FSK
DPSK
QAM
FSK
DPSK
QAM
DPSK MODE
CONDITIONS
QAM/DPSK or FSK receive data
All Modes
70 dBm0 to -6 dBm0
70 dBm0 to -40 dBm0
-70 dBm0 to -6 dBm0
-70 dBm0 to -40 dBm0
-70 dBm0 to -6 dBm0
-70 dBm0 to -40 dBm0
-6 dBm0 to -70 dBm0
-40 dBm0 to -70 dBm0
-6 dBm0 to -70 dBm0
-40 dBm0 to -70 dBm0
-6 dBm0 to -70 dBm0
-40 dBm0 to -70 dBm0
See definitions for D0 of Tone Register
Call INIT mode
2225 ± 10 Hz
2100 ± 21 Hz
Tone Accuracy ±9 Hz
For signals from -6 to -40 dBm0,
Demod Mode
For signals from -6 to –40
Demod or call Init Mode
DPSK Mode
(continued)
20
MIN
-48
-48
-22
25
25
25
25
25
15
20
14
25
10
10
10
10
10
2
7
7
8
6
2
1
NOM
4
MAX
-43
-43
-28
37
37
17
17
37
37
37
30
29
21
32
28
50
45
55
45
45
45
7
UNITS
dBm0
dBm0
dBm0
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
dB
dB