
Data Sheet
CC-2401K2
Page 26 of 66
2007, Copeland Communications, Inc.
CC-2401K2 Datasheet Rev 1.5
Low Level DSP Parameters
DSP Reg.
Addr.
Name
Description
Function
Default
(dec)
0x0002
SMTL
DAA modem full-scale transmit
level, default =-10 dBm
Level = 20log10 (XTML/4096) -10
dBm
4096
0x0003
DTML
DTMF high-tone transmit level,
default = -5.5 dBm
Level=20log10 (DTML/4868) -5.5
dBm
4868
0x0004
DTMT
DTMF twist ratio (low/high),
Default = -2 dBm.
Level = 20log10 (DTMT/3277) – 2
dB
3277
0x0005
UFRQ
User-defined transmit tone
frequency. See register SE5
(SE8=0x02(Write Only)).
f = (9600/512) UFRQ (Hz)
91
0x0006
CPDL
Call progress detect level,
default = -43 dBm
Level = 20log10 (4096/CPDL) -43
dBm
4096
0x0007
UDFD1
User-defined frequency
detector 1. Center frequency
for detector 1.
UDFD1 = 8192 cos (2p f/9600)
4987
0x0008
UDFD2
User-defined frequency
detector 2. Center frequency
for detector 2.
UDFD2 = 8192 cos (2p f/9600)
536
0x0009
UDFD3
User-defined frequency
detector 3. Center frequency
for detector 3.
UDFD3 = 8192 cos (2p f/9600)
4987
0x000A
UDFD4
User-defined frequency
detector 4. Center frequency
for detector 4.
UDFD4 = 8192 cos (2p f/9600)
536
0x000B
TGNL
Tone generation level
associated with TONC
(SE5(SE8 = 0x02) Write Only
Definition), default = -10 dBm.
Level = 20log10 (TGNL/2896)
- 10 dBm
2896
0x000E
UDFSL
Sensitivity setting for UDFD1-4
detectors, default = -43 dBm.
Sensitivity = 10log10
(UDFSL/4096) -43 dBm
4096
0x0024
CONL
Carrier ON level. Carrier is
valid once it reaches this level.
Level = 20log10 (2620/CONL) –
43 dBm.
0x0025
COFL
Carrier OFF level. Carrier is
invalid once it falls below this
level.
Level = 20log10(3300/COFL) –
45.5 dBm.
3300
0x0026
AONL
Answer ON level. Answer
tone is valid once it reaches
this level.
Level = 10log10(AONL/107) – 43
dBm.
67
0x0027
AOFL
Answer OFF level. Answer
tone is invalid once it falls
below this level.
Level = 10log10(AOFL/58) – 45.5
dBm.
37