73K224L Datasheet, PDF (21/31 Pages) TDK Electronics – V.22bis/V.22/V.21/ Bell 212A/Bell 103 Single-Chip Modem

73K224L
V.22bis, V.22, V.21, Bell 212A, 103
Single-Chip Modem
DATA SHEET
DYNAMIC CHARACTERISTICS AND TIMING (continued)
PARAMETER
Carrier Detect
Threshold
Hysteresis
Delay Time
FSK
DPSK
QAM
Hold Time
FSK
DPSK
QAM
Answer Tone Detectors
Detect Level
Detect Time
Hold Time
Pattern Detectors
S1 Pattern
Delay Time
Hold Time
Unscrambled Mark
Delay Time
Hold Time
Receive Level Indicator
Detect On
Valid after Carrier Detect
Output Smoothing Filter
Output Impedance
Output load
Maximum Transmitted
Energy
CONDITION
MIN NOM MAX
Receive Gain = On for lower input level measurements
All Modes
-48
-43
All Modes
2
70 dBm0 to -6 dBm0
25
37
70 dBm0 to -40 dBm0
25
37
-70 dBm0 to -6 dBm0
7
17
-70 dBm0 to -40 dBm0
7
17
-70 dBm0 to -6 dBm0
25
37
-70 dBm0 to -40 dBm0
25
37
-6 dBm0 to -70 dBm0
25
37
-40 dBm0 to -70 dBm0
15
30
-6 dBm0 to -70 dBm0
20
29
-40 dBm0 to -70 dBm0
14
21
-6 dBm0 to -70 dBm0
25
32
-40 dBm0 to -70 dBm0
18
28
DPSK Mode
-48
-43
Call Init Mode, 2100 or 2225 Hz
6
50
6
50
DPSK Mode
For signals from -6 to -40 dBm0,
10
55
-6 to -40 dBm0, Demod Mode
10
45
For signals from -6 to –40
10
45
call Init Mode
10
45
DPSK Mode
-22
-28
1
4
7
TXA pin
TXA pin; FSK Single
Tone out for THD = -50 dB
in 0.3 to 3.4 kHz range
4 kHz, Guard Tones off
10 kHz, Guard Tones off
12 kHz, Guard Tones off
200
300
10
50
-35
-55
-65
UNIT
dBm0
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
dBm0
ms
ms
ms
ms
ms
ms
dBm0
ms
Ω
KΩ
pF
dBm0
dBm0
dBm0
Page: 21 of 31
© 2005, 2008 TERIDIAN Semiconductor Corporation
Rev 7.1