73K324L View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'73K324L' PDF : 30 Pages View PDF
73K324L
CCITT V.22bis,V.23,V.22,V.21, Bell 212A
Single-Chip Modem
DATA SHEET
DYNAMIC CHARACTERISTICS AND TIMING (continued)
PARAMETERS
CONDITIONS
MIN
Carrier Detect Receive Gain Boost “On” for Lower Input Level Measurements
Threshold
QAM/DPSK or FSK receive data -48
Hysteresis
All Modes
2
Delay Time
FSK 70 dBm0 to -6 dBm0
25
70 dBm0 to -40 dBm0
25
DPSK -70 dBm0 to -6 dBm0
7
-70 dBm0 to -40 dBm0
7
QAM -70 dBm0 to -6 dBm0
25
-70 dBm0 to -40 dBm0
25
Hold Time
FSK -6 dBm0 to -70 dBm0
25
-40 dBm0 to -70 dBm0
15
DPSK -6 dBm0 to -70 dBm0
20
-40 dBm0 to -70 dBm0
14
QAM -6 dBm0 to -70 dBm0
25
-40 dBm0 to -70 dBm0
8
Special Tone Detectors
Detect Level
See definitions for D0 of Tone Register -48
Delay and Hold Time
2225 or 2100 Hz answer tone
Call INIT mode
6
2225 ± 10 Hz
2100 ± 21 Hz
900 Hz SCT Receive V.23 main
Tone Accuracy ±9 Hz
10
channel
Hysteresis
2
PATTERN DETECTORS
DPSK MODE
S1 Pattern
Delay Time
Hold Time
For signals from -6 to -40 dBm0, 10
Demod Mode
10
Unscrambled Mark
Delay Time
Hold Time
For signals from -6 to –40
10
Demod or call Init Mode
10
Receive Level Indicator
Detect On
-22
Valid after Carrier Detect
DPSK Mode
1
NOM
4
MAX
-43
37
37
17
17
37
37
37
30
29
21
32
28
-43
50
45
55
45
45
45
-28
7
UNITS
dBm0
dB
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
dBm0
ms
ms
dB
ms
ms
ms
ms
dBm0
ms
Page: 20 of 30
© 2005, 2008 TERIDIAN Semiconductor Corporation
Rev 7.1
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