CMX605P3 View Datasheet(PDF) - MX-COM Inc
Part Name
Description
MFG CO.
'CMX605P3' PDF : 26 Pages View PDF
Digital Line to POTS Interface
Page 22 of 26
CMX605 Preliminary Information
6.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
VDD = 2.7V at TAMB = 25°C and VDD = 3.0V to 5.5V at TAMB = -40 to 85°C,
Xtal Frequency = 3.579545MHz – 0.1%, 0dBm corresponds to 775mVRMS
DC Parameters
IDD
Op-Amp only Enabled (VDD = 5.0V)
DTMF Rx only, VDD = 5.0V
Tx (tones, SPM) only, VDD = 5.0V
All Enabled, VDD = 5.0V
Op-Amp only Enabled (VDD = 3.3V)
DTMF Rx only, VDD = 3.3V
Tx (tones, SPM) only, VDD = 3.3V
All Enabled, VDD = 3.3V
Logic ‘1’ Input Level
Logic ‘0’ Input Level
Logic Input Leakage Current (VIN = 0 to VDD), (excluding
XTAL/CLOCK input)
Output Logic ‘1’ Level (IOH = 360µA)
Output Logic ‘0’ Level (IOL = 360µA)
IRQ output ‘Off' State Current (VOUT = VDD)
FSK Encoder and Tx UART
Level at TONEFSK pin
Twist (Mark level with regards to Space level)
Tx 1200bits/sec (V23 mode)
Baud Rate (set by UART and Xtal frequency)
Mark (Logical 1) Frequency
Space (Logical 0) Frequency
Tx 1200bits/sec (Bell 202 mode)
Baud Rate (set by UART and Xtal frequency)
Mark (Logical 1) Frequency
Space (Logical 0) Frequency
TONEFSK Signal Level
Level at TONEFSK pin for:
Single tone
Dual tone (per tone)
DTMF High Frequency Group
DTMF Low Frequency Group
Output Impedance
Tone frequency resolution
Tone output distortion
Notes Min. Typ. Max. Unit
1
2.0
mA
1
2.8
4.5
mA
1
4.6
7.0
mA
1
7.2 11.0 mA
1
0.75
mA
1
1.2
2.5
mA
1
2.0
3.0
mA
1
3.2
5.0
mA
3
70%
3
3
-1.0
VDD
30% VDD
1.0
µA
VDD-0.4
V
0.4
V
1.0
µA
4
-1.0
0.0
1.0 dBm
-2.0
0
2.0
dB
1194
1297
2097
1200
1300
2100
1206
1303
2103
Baud
Hz
Hz
1194
1197
2197
1200
1200
2200
1206
1203
2203
Baud
Hz
Hz
4
-1.0
0
1.0 dBm
4
-4.0
-3.0 -2.0 dBm
4
-4.0
-3.0 -2.0 dBm
4
-6.0
-5.0 -4.0 dBm
10.0
-
kW
-2.0
2.0
Hz
5
0.8
%
¤2001 MX-COM, Inc.
www.mxcom.com tel: 800 638 5577 336 744 5050 fax: 336 744 5054
Doc. # 20480195.005
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All trademarks and service marks are held by their respective companies.
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