73k322l ETC-unknow, 73k322l Datasheet - Page 19

• Manufacturer Part Number: 73k322l
• Description: Ccitt V.23, V.22, V.21 Single-chip Modem
• Manufacturer: ETC-unknow

DYNAMIC CHARACTERISTICS AND TIMING
PARAMETER
Call Progress Detector
Carrier Detect
Special Tone Detectors
Detect Level
Reject Level
Delay Time
Hold Time
Hysteresis
Threshold
Delay Time
Hold Time
Hysteresis
Detect Level
Delay Time
V.21
V.22
V.23 Forward Channel
V.23 Back Channel
V.21
V.22
V.23 Forward Channel
V.23 Back Channel
2100 Hz answer tone
1300 Hz calling tone
390 Hz
V.23 back channel mark
CONDITION
-3 dB points in 285 and 675 Hz
Test signal is a 460 Hz sinusoid
-70 dBm0 to -30 dBm0 STEP
-30 dBm0 to -70 dBm0 STEP
DPSK or FSK receive data
See definitions for
TR bit D0 mode
(continued)
19
CCITT V.23, V.22, V.21
MIN
-38
-48
-48
10
15
25
10
10
10
10
20
2
6
6
3
2
Single-Chip Modem
NOM
MAX
-45
-43
-43
40
40
20
32
12
40
20
24
25
25
25
65
8
dBm0
dBm0
dBm0
dBm0
UNIT
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
dB
dB